Articles | Volume 15, issue 10
https://doi.org/10.5194/bg-15-3143-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-15-3143-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
25 May 2018
Research article |
| 25 May 2018
| 25 May 2018
Landscape analysis of soil methane flux across complex terrain
Kendra E. Kaiser
CORRESPONDING AUTHOR
Earth and Ocean Sciences Department, Nicholas School of the
Environment, Duke University, Durham, NC 27708, USA
Geosciences Department, Boise State University, Boise, ID 83725, USA
Brian L. McGlynn
Earth and Ocean Sciences Department, Nicholas School of the
Environment, Duke University, Durham, NC 27708, USA
John E. Dore
Department of Land Resources and Environmental Sciences, Montana
State University, Bozeman, MT 59717, USA
Montana Institute on Ecosystems, Montana State University, Bozeman,
MT 59717, USA
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Paul C. Stoy, Adam A. Cook, John E. Dore, Natascha Kljun, William Kleindl, E. N. Jack Brookshire, and Tobias Gerken
Biogeosciences, 18, 961–975, https://doi.org/10.5194/bg-18-961-2021, https://doi.org/10.5194/bg-18-961-2021, 2021
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The reintroduction of American bison creates multiple environmental benefits. Ruminants like bison also emit methane – a potent greenhouse gas – to the atmosphere, which has not been measured to date in a field setting. We measured methane efflux from an American bison herd during winter using eddy covariance. Automated cameras were used to approximate their location to calculate per-animal flux. From the measurements, bison do not emit more methane than the cattle they often replace.
Christa Kelleher, Brian McGlynn, and Thorsten Wagener
Hydrol. Earth Syst. Sci., 21, 3325–3352, https://doi.org/10.5194/hess-21-3325-2017, https://doi.org/10.5194/hess-21-3325-2017, 2017
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Models are tools for understanding how watersheds function and may respond to land cover and climate change. Before we can use models towards these purposes, we need to ensure that a model adequately represents watershed-wide observations. In this paper, we propose a new way to evaluate whether model simulations match observations, using a variety of information sources. We show how this information can reduce uncertainty in inputs to models, reducing uncertainty in hydrologic predictions.
Related subject area
Biogeochemistry: Greenhouse Gases
Meteorological responses of carbon dioxide and methane fluxes in the terrestrial and aquatic ecosystems of a subarctic landscape
Carbon emission and export from the Ket River, western Siberia
Evaluation of wetland CH4 in the Joint UK Land Environment Simulator (JULES) land surface model using satellite observations
Greenhouse gas fluxes in mangrove forest soil in an Amazon estuary
Temporal patterns and drivers of CO2 emission from dry sediments in a groyne field of a large river
Effects of water table level and nitrogen deposition on methane and nitrous oxide emissions in an alpine peatland
Highest methane concentrations in an Arctic river linked to local terrestrial inputs
Seasonal study of the small-scale variability in dissolved methane in the western Kiel Bight (Baltic Sea) during the European heatwave in 2018
Trace gas fluxes from tidal salt marsh soils: implications for carbon–sulfur biogeochemistry
Spatial and temporal variation in δ13C values of methane emitted from a hemiboreal mire: methanogenesis, methanotrophy, and hysteresis
Intercomparison of methods to estimate gross primary production based on CO2 and COS flux measurements
Lateral carbon export has low impact on the net ecosystem carbon balance of a polygonal tundra catchment
The effect of static chamber base on N2O flux in drip irrigation
Controls on autotrophic and heterotrophic respiration in an ombrotrophic bog
Episodic N2O emissions following tillage of a legume–grass cover crop mixture
Variation in CO2 and CH4 fluxes among land cover types in heterogeneous Arctic tundra in northeastern Siberia
Response of vegetation and carbon fluxes to brown lemming herbivory in northern Alaska
Sources of nitrous oxide and the fate of mineral nitrogen in subarctic permafrost peat soils
Data-based estimates of interannual sea–air CO2 flux variations 1957–2020 and their relation to environmental drivers
Evaluating alternative ebullition models for predicting peatland methane emission and its pathways via data–model fusion
Excess soil moisture and fresh carbon input are prerequisites for methane production in podzolic soil
Low biodegradability of particulate organic carbon mobilized from thaw slumps on the Peel Plateau, NT, and possible chemosynthesis and sorption effects
Grazing enhances carbon cycling but reduces methane emission during peak growing season in the Siberian Pleistocene Park tundra site
Ideas and perspectives: Enhancing research and monitoring of carbon pools and land-to-atmosphere greenhouse gases exchange in developing countries
Ignoring carbon emissions from thermokarst ponds results in overestimation of tundra net carbon uptake
Quantification of potential methane emissions associated with organic matter amendments following oxic-soil inundation
Assessing the spatial and temporal variability of greenhouse gas emissions from different configurations of on-site wastewater treatment system using discrete and continuous gas flux measurement
Dimethylated sulfur compounds in the Peruvian upwelling system
Partitioning carbon sources between wetland and well-drained ecosystems to a tropical first-order stream – implications for carbon cycling at the watershed scale (Nyong, Cameroon)
Extreme events driving year-to-year differences in gross primary productivity across the US
Methane gas emissions from savanna fires: what analysis of local burning regimes in a working West African landscape tell us
Methane in Zackenberg Valley, NE Greenland: multidecadal growing season fluxes of a high-Arctic tundra
Field-scale CH4 emission at a subarctic mire with heterogeneous permafrost thaw status
Evaluation of denitrification and decomposition from three biogeochemical models using laboratory measurements of N2, N2O and CO2
Temporal trends in methane emissions from a small eutrophic reservoir: the key role of a spring burst
Greenhouse gases emissions from riparian wetlands: an example from the Inner Mongolia grassland region in China
Variability of North Atlantic CO2 fluxes for the 2000–2017 period estimated from atmospheric inverse analyses
Effects of clear-fell harvesting on soil CO2, CH4, and N2O fluxes in an upland Sitka spruce stand in England
Conventional subsoil irrigation techniques do not lower carbon emissions from drained peat meadows
Different responses of ecosystem CO2 and N2O emissions and CH4 uptake to seasonally asymmetric warming in an alpine grassland of the Tianshan
The role of termite CH4 emissions on the ecosystem scale: a case study in the Amazon rainforest
Biogeochemical and plant trait mechanisms drive enhanced methane emissions in response to whole-ecosystem warming
A decade of dimethyl sulfide (DMS), dimethylsulfoniopropionate (DMSP) and dimethyl sulfoxide (DMSO) measurements in the southwestern Baltic Sea
Methane dynamics in three different Siberian water bodies under winter and summer conditions
Topography-based statistical modelling reveals high spatial variability and seasonal emission patches in forest floor methane flux
Technical note: CO2 is not like CH4 – limits of and corrections to the headspace method to analyse pCO2 in fresh water
Comparison of greenhouse gas fluxes from tropical forests and oil palm plantations on mineral soil
Are there memory effects on greenhouse gas emissions (CO2, N2O and CH4) following grassland restoration?
Intraseasonal variability of greenhouse gas emission factors from biomass burning in the Brazilian Cerrado
Evaluating stream CO2 outgassing via drifting and anchored flux chambers in a controlled flume experiment
Lauri Heiskanen, Juha-Pekka Tuovinen, Henriikka Vekuri, Aleksi Räsänen, Tarmo Virtanen, Sari Juutinen, Annalea Lohila, Juha Mikola, and Mika Aurela
Biogeosciences, 20, 545–572, https://doi.org/10.5194/bg-20-545-2023, https://doi.org/10.5194/bg-20-545-2023, 2023
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We measured and modelled the CO2 and CH4 fluxes of the terrestrial and aquatic ecosystems of the subarctic landscape for 2 years. The landscape was an annual CO2 sink and a CH4 source. The forest had the largest contribution to the landscape-level CO2 sink and the peatland to the CH4 emissions. The lakes released 24 % of the annual net C uptake of the landscape back to the atmosphere. The C fluxes were affected most by the rainy peak growing season of 2017 and the drought event in July 2018.
Artem G. Lim, Ivan V. Krickov, Sergey N. Vorobyev, Mikhail A. Korets, Sergey Kopysov, Liudmila S. Shirokova, Jan Karlsson, and Oleg S. Pokrovsky
Biogeosciences, 19, 5859–5877, https://doi.org/10.5194/bg-19-5859-2022, https://doi.org/10.5194/bg-19-5859-2022, 2022
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In order to quantify C transport and emission and main environmental factors controlling the C cycle in Siberian rivers, we investigated the largest tributary of the Ob River, the Ket River basin, by measuring spatial and seasonal variations in carbon CO2 and CH4 concentrations and emissions together with hydrochemical analyses. The obtained results are useful for large-scale modeling of C emission and export fluxes from permafrost-free boreal rivers of an underrepresented region of the world.
Robert J. Parker, Chris Wilson, Edward Comyn-Platt, Garry Hayman, Toby R. Marthews, A. Anthony Bloom, Mark F. Lunt, Nicola Gedney, Simon J. Dadson, Joe McNorton, Neil Humpage, Hartmut Boesch, Martyn P. Chipperfield, Paul I. Palmer, and Dai Yamazaki
Biogeosciences, 19, 5779–5805, https://doi.org/10.5194/bg-19-5779-2022, https://doi.org/10.5194/bg-19-5779-2022, 2022
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Wetlands are the largest natural source of methane, one of the most important climate gases. The JULES land surface model simulates these emissions. We use satellite data to evaluate how well JULES reproduces the methane seasonal cycle over different tropical wetlands. It performs well for most regions; however, it struggles for some African wetlands influenced heavily by river flooding. We explain the reasons for these deficiencies and highlight how future development will improve these areas.
Saúl Edgardo Martínez Castellón, José Henrique Cattanio, José Francisco Berrêdo, Marcelo Rollnic, Maria de Lourdes Ruivo, and Carlos Noriega
Biogeosciences, 19, 5483–5497, https://doi.org/10.5194/bg-19-5483-2022, https://doi.org/10.5194/bg-19-5483-2022, 2022
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We seek to understand the influence of climatic seasonality and microtopography on CO2 and CH4 fluxes in an Amazonian mangrove. Topography and seasonality had a contrasting influence when comparing the two gas fluxes: CO2 fluxes were greater in high topography in the dry period, and CH4 fluxes were greater in the rainy season in low topography. Only CO2 fluxes were correlated with soil organic matter, the proportion of carbon and nitrogen, and redox potential.
Matthias Koschorreck, Klaus Holger Knorr, and Lelaina Teichert
Biogeosciences, 19, 5221–5236, https://doi.org/10.5194/bg-19-5221-2022, https://doi.org/10.5194/bg-19-5221-2022, 2022
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At low water levels, parts of the bottom of rivers fall dry. These beaches or mudflats emit the greenhouse gas carbon dioxide (CO2) to the atmosphere. We found that those emissions are caused by microbial reactions in the sediment and that they change with time. Emissions were influenced by many factors like temperature, water level, rain, plants, and light.
Wantong Zhang, Zhengyi Hu, Joachim Audet, Thomas A. Davidson, Enze Kang, Xiaoming Kang, Yong Li, Xiaodong Zhang, and Jinzhi Wang
Biogeosciences, 19, 5187–5197, https://doi.org/10.5194/bg-19-5187-2022, https://doi.org/10.5194/bg-19-5187-2022, 2022
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This work focused on the CH4 and N2O emissions from alpine peatlands in response to the interactive effects of altered water table levels and increased nitrogen deposition. Across the 2-year mesocosm experiment, nitrogen deposition showed nonlinear effects on CH4 emissions and linear effects on N2O emissions, and these N effects were associated with the water table levels. Our results imply the future scenario of strengthened CH4 and N2O emissions from an alpine peatland.
Karel Castro-Morales, Anna Canning, Sophie Arzberger, Will A. Overholt, Kirsten Küsel, Olaf Kolle, Mathias Göckede, Nikita Zimov, and Arne Körtzinger
Biogeosciences, 19, 5059–5077, https://doi.org/10.5194/bg-19-5059-2022, https://doi.org/10.5194/bg-19-5059-2022, 2022
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Permafrost thaw releases methane that can be emitted into the atmosphere or transported by Arctic rivers. Methane measurements are lacking in large Arctic river regions. In the Kolyma River (northeast Siberia), we measured dissolved methane to map its distribution with great spatial detail. The river’s edge and river junctions had the highest methane concentrations compared to other river areas. Microbial communities in the river showed that the river’s methane likely is from the adjacent land.
Sonja Gindorf, Hermann W. Bange, Dennis Booge, and Annette Kock
Biogeosciences, 19, 4993–5006, https://doi.org/10.5194/bg-19-4993-2022, https://doi.org/10.5194/bg-19-4993-2022, 2022
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Methane is a climate-relevant greenhouse gas which is emitted to the atmosphere from coastal areas such as the Baltic Sea. We measured the methane concentration in the water column of the western Kiel Bight. Methane concentrations were higher in September than in June. We found no relationship between the 2018 European heatwave and methane concentrations. Our results show that the methane distribution in the water column is strongly affected by temporal and spatial variabilities.
Margaret Capooci and Rodrigo Vargas
Biogeosciences, 19, 4655–4670, https://doi.org/10.5194/bg-19-4655-2022, https://doi.org/10.5194/bg-19-4655-2022, 2022
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Tidal salt marsh soil emits greenhouse gases, as well as sulfur-based gases, which play roles in global climate but are not well studied as they are difficult to measure. Traditional methods of measuring these gases worked relatively well for carbon dioxide, but less so for methane, nitrous oxide, carbon disulfide, and dimethylsulfide. High variability of trace gases complicates the ability to accurately calculate gas budgets and new approaches are needed for monitoring protocols.
Janne Rinne, Patryk Łakomiec, Patrik Vestin, Joel D. White, Per Weslien, Julia Kelly, Natascha Kljun, Lena Ström, and Leif Klemedtsson
Biogeosciences, 19, 4331–4349, https://doi.org/10.5194/bg-19-4331-2022, https://doi.org/10.5194/bg-19-4331-2022, 2022
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The study uses the stable isotope 13C of carbon in methane to investigate the origins of spatial and temporal variation in methane emitted by a temperate wetland ecosystem. The results indicate that methane production is more important for spatial variation than methane consumption by micro-organisms. Temporal variation on a seasonal timescale is most likely affected by more than one driver simultaneously.
Kukka-Maaria Kohonen, Roderick Dewar, Gianluca Tramontana, Aleksanteri Mauranen, Pasi Kolari, Linda M. J. Kooijmans, Dario Papale, Timo Vesala, and Ivan Mammarella
Biogeosciences, 19, 4067–4088, https://doi.org/10.5194/bg-19-4067-2022, https://doi.org/10.5194/bg-19-4067-2022, 2022
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Four different methods for quantifying photosynthesis (GPP) at ecosystem scale were tested, of which two are based on carbon dioxide (CO2) and two on carbonyl sulfide (COS) flux measurements. CO2-based methods are traditional partitioning, and a new method uses machine learning. We introduce a novel method for calculating GPP from COS fluxes, with potentially better applicability than the former methods. Both COS-based methods gave on average higher GPP estimates than the CO2-based estimates.
Lutz Beckebanze, Benjamin R. K. Runkle, Josefine Walz, Christian Wille, David Holl, Manuel Helbig, Julia Boike, Torsten Sachs, and Lars Kutzbach
Biogeosciences, 19, 3863–3876, https://doi.org/10.5194/bg-19-3863-2022, https://doi.org/10.5194/bg-19-3863-2022, 2022
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In this study, we present observations of lateral and vertical carbon fluxes from a permafrost-affected study site in the Russian Arctic. From this dataset we estimate the net ecosystem carbon balance for this study site. We show that lateral carbon export has a low impact on the net ecosystem carbon balance during the complete study period (3 months). Nevertheless, our results also show that lateral carbon export can exceed vertical carbon uptake at the beginning of the growing season.
Shahar Baram, Asher Bar-Tal, Alon Gal, Shmulik P. Friedman, and David Russo
Biogeosciences, 19, 3699–3711, https://doi.org/10.5194/bg-19-3699-2022, https://doi.org/10.5194/bg-19-3699-2022, 2022
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Static chambers are the most common tool used to measure greenhouse gas (GHG) fluxes. We tested the impact of such chambers on nitrous oxide emissions in drip irrigation. Field measurements and 3-D simulations show that the chamber base drastically affects the water and nutrient distribution in the soil and hence the measured GHG fluxes. A nomogram is suggested to determine the optimal diameter of a cylindrical chamber that ensures minimal disturbance.
Tracy E. Rankin, Nigel T. Roulet, and Tim R. Moore
Biogeosciences, 19, 3285–3303, https://doi.org/10.5194/bg-19-3285-2022, https://doi.org/10.5194/bg-19-3285-2022, 2022
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Peatland respiration is made up of plant and peat sources. How to separate these sources is not well known as peat respiration is not straightforward and is more influenced by vegetation dynamics than previously thought. Results of plot level measurements from shrubs and sparse grasses in a woody bog show that plants' respiration response to changes in climate is related to their different root structures, implying a difference in the mechanisms by which they obtain water resources.
Alison Bressler and Jennifer Blesh
Biogeosciences, 19, 3169–3184, https://doi.org/10.5194/bg-19-3169-2022, https://doi.org/10.5194/bg-19-3169-2022, 2022
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Our field experiment tested if a mixture of a nitrogen-fixing legume and non-legume cover crop could reduce nitrous oxide (N2O) emissions following tillage, compared to the legume grown alone. We found higher N2O following both legume treatments, compared to those without, and lower emissions from the cover crop mixture at one of the two test sites, suggesting that interactions between cover crop types and soil quality influence N2O emissions.
Sari Juutinen, Mika Aurela, Juha-Pekka Tuovinen, Viktor Ivakhov, Maiju Linkosalmi, Aleksi Räsänen, Tarmo Virtanen, Juha Mikola, Johanna Nyman, Emmi Vähä, Marina Loskutova, Alexander Makshtas, and Tuomas Laurila
Biogeosciences, 19, 3151–3167, https://doi.org/10.5194/bg-19-3151-2022, https://doi.org/10.5194/bg-19-3151-2022, 2022
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We measured CO2 and CH4 fluxes in heterogenous Arctic tundra in eastern Siberia. We found that tundra wetlands with sedge and grass vegetation contributed disproportionately to the landscape's ecosystem CO2 uptake and CH4 emissions to the atmosphere. Moreover, we observed high CH4 consumption in dry tundra, particularly in barren areas, offsetting part of the CH4 emissions from the wetlands.
Jessica Plein, Rulon W. Clark, Kyle A. Arndt, Walter C. Oechel, Douglas Stow, and Donatella Zona
Biogeosciences, 19, 2779–2794, https://doi.org/10.5194/bg-19-2779-2022, https://doi.org/10.5194/bg-19-2779-2022, 2022
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Tundra vegetation and the carbon balance of Arctic ecosystems can be substantially impacted by herbivory. We tested how herbivory by brown lemmings in individual enclosure plots have impacted carbon exchange of tundra ecosystems via altering carbon dioxide (CO2) and methane (CH4) fluxes. Lemmings significantly decreased net CO2 uptake while not affecting CH4 emissions. There was no significant difference in the subsequent growing season due to recovery of the vegetation.
Jenie Gil, Maija E. Marushchak, Tobias Rütting, Elizabeth M. Baggs, Tibisay Pérez, Alexander Novakovskiy, Tatiana Trubnikova, Dmitry Kaverin, Pertti J. Martikainen, and Christina Biasi
Biogeosciences, 19, 2683–2698, https://doi.org/10.5194/bg-19-2683-2022, https://doi.org/10.5194/bg-19-2683-2022, 2022
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N2O emissions from permafrost soils represent up to 11.6 % of total N2O emissions from natural soils, and their contribution to the global N2O budget will likely increase due to climate change. A better understanding of N2O production from permafrost soil is needed to evaluate the role of arctic ecosystems in the global N2O budget. By studying microbial N2O production processes in N2O hotspots in permafrost peatlands, we identified denitrification as the dominant source of N2O in these surfaces.
Christian Rödenbeck, Tim DeVries, Judith Hauck, Corinne Le Quéré, and Ralph F. Keeling
Biogeosciences, 19, 2627–2652, https://doi.org/10.5194/bg-19-2627-2022, https://doi.org/10.5194/bg-19-2627-2022, 2022
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The ocean is an important part of the global carbon cycle, taking up about a quarter of the anthropogenic CO2 emitted by burning of fossil fuels and thus slowing down climate change. However, the CO2 uptake by the ocean is, in turn, affected by variability and trends in climate. Here we use carbon measurements in the surface ocean to quantify the response of the oceanic CO2 exchange to environmental conditions and discuss possible mechanisms underlying this response.
Shuang Ma, Lifen Jiang, Rachel M. Wilson, Jeff P. Chanton, Scott Bridgham, Shuli Niu, Colleen M. Iversen, Avni Malhotra, Jiang Jiang, Xingjie Lu, Yuanyuan Huang, Jason Keller, Xiaofeng Xu, Daniel M. Ricciuto, Paul J. Hanson, and Yiqi Luo
Biogeosciences, 19, 2245–2262, https://doi.org/10.5194/bg-19-2245-2022, https://doi.org/10.5194/bg-19-2245-2022, 2022
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The relative ratio of wetland methane (CH4) emission pathways determines how much CH4 is oxidized before leaving the soil. We found an ebullition modeling approach that has a better performance in deep layer pore water CH4 concentration. We suggest using this approach in land surface models to accurately represent CH4 emission dynamics and response to climate change. Our results also highlight that both CH4 flux and belowground concentration data are important to constrain model parameters.
Mika Korkiakoski, Tiia Määttä, Krista Peltoniemi, Timo Penttilä, and Annalea Lohila
Biogeosciences, 19, 2025–2041, https://doi.org/10.5194/bg-19-2025-2022, https://doi.org/10.5194/bg-19-2025-2022, 2022
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We measured CH4 fluxes and production and oxidation potentials from irrigated and non-irrigated podzolic soil in a boreal forest. CH4 sink was smaller at the irrigated site but did not cause CH4 emission, with one exception. We also showed that under laboratory conditions, not only wet conditions, but also fresh carbon, are needed to make podzolic soil into a CH4 source. Our study provides important data for improving the process models describing the upland soil CH4 dynamics.
Sarah Shakil, Suzanne E. Tank, Jorien E. Vonk, and Scott Zolkos
Biogeosciences, 19, 1871–1890, https://doi.org/10.5194/bg-19-1871-2022, https://doi.org/10.5194/bg-19-1871-2022, 2022
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Permafrost thaw-driven landslides in the western Arctic are increasing organic carbon delivered to headwaters of drainage networks in the western Canadian Arctic by orders of magnitude. Through a series of laboratory experiments, we show that less than 10 % of this organic carbon is likely to be mineralized to greenhouse gases during transport in these networks. Rather most of the organic carbon is likely destined for burial and sequestration for centuries to millennia.
Wolfgang Fischer, Christoph K. Thomas, Nikita Zimov, and Mathias Göckede
Biogeosciences, 19, 1611–1633, https://doi.org/10.5194/bg-19-1611-2022, https://doi.org/10.5194/bg-19-1611-2022, 2022
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Arctic permafrost ecosystems may release large amounts of carbon under warmer future climates and may therefore accelerate global climate change. Our study investigated how long-term grazing by large animals influenced ecosystem characteristics and carbon budgets at a Siberian permafrost site. Our results demonstrate that such management can contribute to stabilizing ecosystems to keep carbon in the ground, particularly through drying soils and reducing methane emissions.
Dong-Gill Kim, Ben Bond-Lamberty, Youngryel Ryu, Bumsuk Seo, and Dario Papale
Biogeosciences, 19, 1435–1450, https://doi.org/10.5194/bg-19-1435-2022, https://doi.org/10.5194/bg-19-1435-2022, 2022
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As carbon (C) and greenhouse gas (GHG) research has adopted appropriate technology and approach (AT&A), low-cost instruments, open-source software, and participatory research and their results were well accepted by scientific communities. In terms of cost, feasibility, and performance, the integration of low-cost and low-technology, participatory and networking-based research approaches can be AT&A for enhancing C and GHG research in developing countries.
Lutz Beckebanze, Zoé Rehder, David Holl, Christian Wille, Charlotta Mirbach, and Lars Kutzbach
Biogeosciences, 19, 1225–1244, https://doi.org/10.5194/bg-19-1225-2022, https://doi.org/10.5194/bg-19-1225-2022, 2022
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Arctic permafrost landscapes feature many water bodies. In contrast to the terrestrial parts of the landscape, the water bodies release carbon to the atmosphere. We compare carbon dioxide and methane fluxes from small water bodies to the surrounding tundra and find not accounting for the carbon dioxide emissions leads to an overestimation of the tundra uptake by 11 %. Consequently, changes in hydrology and water body distribution may substantially impact the overall carbon budget of the Arctic.
Brian Scott, Andrew H. Baldwin, and Stephanie A. Yarwood
Biogeosciences, 19, 1151–1164, https://doi.org/10.5194/bg-19-1151-2022, https://doi.org/10.5194/bg-19-1151-2022, 2022
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Carbon dioxide and methane contribute to global warming. What can we do? We can build wetlands: they store carbon dioxide and should cause global cooling. But when first built they produce excess methane. Eventually built wetlands will cause cooling, but it may take decades or even centuries. How we build wetlands matters. We show that a common practice, using organic matter, such as manure, can make a big difference whether or not the wetlands we build start global cooling within our lifetime.
Jan Knappe, Celia Somlai, and Laurence W. Gill
Biogeosciences, 19, 1067–1085, https://doi.org/10.5194/bg-19-1067-2022, https://doi.org/10.5194/bg-19-1067-2022, 2022
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Two domestic on-site wastewater treatment systems have been monitored for greenhouse gas (carbon dioxide, methane and nitrous oxide) emissions coming from the process units, soil and vent pipes. This has enabled the net greenhouse gas per person to be quantified for the first time, as well as the impact of pre-treatment on the effluent before being discharged to soil. These decentralised wastewater treatment systems serve approx. 20 % of the population in both Europe and the United States.
Yanan Zhao, Dennis Booge, Christa A. Marandino, Cathleen Schlundt, Astrid Bracher, Elliot L. Atlas, Jonathan Williams, and Hermann W. Bange
Biogeosciences, 19, 701–714, https://doi.org/10.5194/bg-19-701-2022, https://doi.org/10.5194/bg-19-701-2022, 2022
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We present here, for the first time, simultaneously measured dimethylsulfide (DMS) seawater concentrations and DMS atmospheric mole fractions from the Peruvian upwelling region during two cruises in December 2012 and October 2015. Our results indicate low oceanic DMS concentrations and atmospheric DMS molar fractions in surface waters and the atmosphere, respectively. In addition, the Peruvian upwelling region was identified as an insignificant source of DMS emissions during both periods.
Moussa Moustapha, Loris Deirmendjian, David Sebag, Jean-Jacques Braun, Stéphane Audry, Henriette Ateba Bessa, Thierry Adatte, Carole Causserand, Ibrahima Adamou, Benjamin Ngounou Ngatcha, and Frédéric Guérin
Biogeosciences, 19, 137–163, https://doi.org/10.5194/bg-19-137-2022, https://doi.org/10.5194/bg-19-137-2022, 2022
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We monitor the spatio-temporal variability of organic and inorganic carbon (C) species in the tropical Nyong River (Cameroon), across groundwater and increasing stream orders. We show the significant contribution of wetland as a C source for tropical rivers. Thus, ignoring the river–wetland connectivity might lead to the misrepresentation of C dynamics in tropical watersheds. Finally, total fluvial carbon losses might offset ~10 % of the net C sink estimated for the whole Nyong watershed.
Alexander J. Turner, Philipp Köhler, Troy S. Magney, Christian Frankenberg, Inez Fung, and Ronald C. Cohen
Biogeosciences, 18, 6579–6588, https://doi.org/10.5194/bg-18-6579-2021, https://doi.org/10.5194/bg-18-6579-2021, 2021
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This work builds a high-resolution estimate (500 m) of gross primary productivity (GPP) over the US using satellite measurements of solar-induced chlorophyll fluorescence (SIF) from the TROPOspheric Monitoring Instrument (TROPOMI) between 2018 and 2020. We identify ecosystem-specific scaling factors for estimating gross primary productivity (GPP) from TROPOMI SIF. Extreme precipitation events drive four regional GPP anomalies that account for 28 % of year-to-year GPP differences across the US.
Paul Laris, Moussa Koné, Fadiala Dembélé, Christine M. Rodrigue, Lilian Yang, Rebecca Jacobs, and Quincy Laris
Biogeosciences, 18, 6229–6244, https://doi.org/10.5194/bg-18-6229-2021, https://doi.org/10.5194/bg-18-6229-2021, 2021
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Savanna fires play a key role in the global carbon cycle because they release methane. Although it burns the most, there are few studies from West Africa. We conducted 36 experimental fires according to local practice to collect smoke samples. We found that fires set early in the season had higher methane emissions than those set later, and head fires had double the emissions of backfires. We conclude policies to reduce emissions will not have the desired effects if fire type is not considered.
Johan H. Scheller, Mikhail Mastepanov, Hanne H. Christiansen, and Torben R. Christensen
Biogeosciences, 18, 6093–6114, https://doi.org/10.5194/bg-18-6093-2021, https://doi.org/10.5194/bg-18-6093-2021, 2021
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Our study presents a time series of methane emissions in a high-Arctic-tundra landscape over 14 summers, which shows large variations between years. The methane emissions from the valley are expected to more than double in the late 21st century. This warming increases permafrost thaw, which could increase surface erosion in the valley. Increased erosion could offset some of the rise in methane fluxes from the valley, but this would require large-scale impacts on vegetated surfaces.
Patryk Łakomiec, Jutta Holst, Thomas Friborg, Patrick Crill, Niklas Rakos, Natascha Kljun, Per-Ola Olsson, Lars Eklundh, Andreas Persson, and Janne Rinne
Biogeosciences, 18, 5811–5830, https://doi.org/10.5194/bg-18-5811-2021, https://doi.org/10.5194/bg-18-5811-2021, 2021
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Methane emission from the subarctic mire with heterogeneous permafrost status was measured for the years 2014–2016. Lower methane emission was measured from the palsa mire sector while the thawing wet sector emitted more. Both sectors have a similar annual pattern with a gentle rise during spring and a decrease during autumn. The highest emission was observed in the late summer. Winter emissions were positive during the measurement period and have a significant impact on the annual budgets.
Balázs Grosz, Reinhard Well, Rene Dechow, Jan Reent Köster, Mohammad Ibrahim Khalil, Simone Merl, Andreas Rode, Bianca Ziehmer, Amanda Matson, and Hongxing He
Biogeosciences, 18, 5681–5697, https://doi.org/10.5194/bg-18-5681-2021, https://doi.org/10.5194/bg-18-5681-2021, 2021
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To assure quality predictions biogeochemical models must be current. We use data measured using novel incubation methods to test the denitrification sub-modules of three models. We aim to identify limitations in the denitrification modeling to inform next steps for development. Several areas are identified, most urgently improved denitrification control parameters and further testing with high-temporal-resolution datasets. Addressing these would significantly improve denitrification modeling.
Sarah Waldo, Jake J. Beaulieu, William Barnett, D. Adam Balz, Michael J. Vanni, Tanner Williamson, and John T. Walker
Biogeosciences, 18, 5291–5311, https://doi.org/10.5194/bg-18-5291-2021, https://doi.org/10.5194/bg-18-5291-2021, 2021
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Human-made reservoirs impact the carbon cycle. In particular, the breakdown of organic matter in reservoir sediments can result in large emissions of greenhouse gases (especially methane) to the atmosphere. This study takes an intensive look at the patterns in greenhouse gas emissions from a single reservoir in Ohio (United States) and the role of water temperature, precipitation, and algal blooms in emissions. We saw a "spring burst" of elevated emissions that challenged our assumptions.
Xinyu Liu, Xixi Lu, Ruihong Yu, Heyang Sun, Hao Xue, Zhen Qi, Zhengxu Cao, Zhuangzhuang Zhang, and Tingxi Liu
Biogeosciences, 18, 4855–4872, https://doi.org/10.5194/bg-18-4855-2021, https://doi.org/10.5194/bg-18-4855-2021, 2021
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Gradual riparian wetland drying is increasingly sensitive to global warming and contributes to climate change. We analyzed the emissions of CO2, CH4, and N2O from riparian wetlands in the Xilin River basin to understand the role of these ecosystems in greenhouse gas emissions. Our study showed that anthropogenic activities have extensively changed the hydrological characteristics of the riparian wetlands and might accelerate carbon loss, which could further affect greenhouse gas emissions.
Zhaohui Chen, Parvadha Suntharalingam, Andrew J. Watson, Ute Schuster, Jiang Zhu, and Ning Zeng
Biogeosciences, 18, 4549–4570, https://doi.org/10.5194/bg-18-4549-2021, https://doi.org/10.5194/bg-18-4549-2021, 2021
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As the global temperature continues to increase, carbon dioxide (CO2) is a major driver of this global warming. The increased CO2 is mainly caused by emissions from fossil fuel use and land use. At the same time, the ocean is a significant sink in the carbon cycle. The North Atlantic is a critical ocean region in reducing CO2 concentration. We estimate the CO2 uptake in this region based on a carbon inverse system and atmospheric CO2 observations.
Sirwan Yamulki, Jack Forster, Georgios Xenakis, Adam Ash, Jacqui Brunt, Mike Perks, and James I. L. Morison
Biogeosciences, 18, 4227–4241, https://doi.org/10.5194/bg-18-4227-2021, https://doi.org/10.5194/bg-18-4227-2021, 2021
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The effect of clear-felling on soil greenhouse gas (GHG) fluxes was assessed in a Sitka spruce forest. Measurements over 4 years showed that CO2, CH4, and N2O fluxes responded differently to clear-felling due to significant changes in soil biotic and abiotic factors and showed large variations between years. Over 3 years since felling, the soil GHG flux was reduced by 45% due to a much larger reduction in CO2 efflux than increases in N2O (up to 20%) and CH4 (changed from sink to source) fluxes.
Stefan Theodorus Johannes Weideveld, Weier Liu, Merit van den Berg, Leon Peter Maria Lamers, and Christian Fritz
Biogeosciences, 18, 3881–3902, https://doi.org/10.5194/bg-18-3881-2021, https://doi.org/10.5194/bg-18-3881-2021, 2021
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Raising the groundwater table (GWT) trough subsoil irrigation does not lead to a reduction of carbon emissions from drained peat meadows, even though there was a clear increase in the GWT during summer. Most likely, the largest part of the peat oxidation takes place in the top 70 cm of the soil, which stays above the GWT with the use of subsoil irrigation. We conclude that the use of subsoil irrigation is ineffective as a mitigation measure to sufficiently lower peat oxidation rates.
Yanming Gong, Ping Yue, Kaihui Li, Anwar Mohammat, and Yanyan Liu
Biogeosciences, 18, 3529–3537, https://doi.org/10.5194/bg-18-3529-2021, https://doi.org/10.5194/bg-18-3529-2021, 2021
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At present, data on the influence of asymmetric warming on the GHG flux on a temporal scale are scarce. GHG fluxes were measured using static chambers and a gas chromatograph. Our study showed that the effect of seasonally asymmetrical warming on CO2 flux was obvious, with the GHG flux being able to adapt to continuous warming. Warming in the non-growing season increased the temperature dependence of GHG flux.
Hella van Asperen, João Rafael Alves-Oliveira, Thorsten Warneke, Bruce Forsberg, Alessandro Carioca de Araújo, and Justus Notholt
Biogeosciences, 18, 2609–2625, https://doi.org/10.5194/bg-18-2609-2021, https://doi.org/10.5194/bg-18-2609-2021, 2021
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Termites are insects that are highly abundant in tropical ecosystems. It is known that termites emit CH4, an important greenhouse gas, but their absolute emission remains uncertain. In the Amazon rainforest, we measured CH4 emissions from termite nests and groups of termites. In addition, we tested a fast and non-destructive field method to estimate termite nest colony size. We found that termites play a significant role in an ecosystem's CH4 budget and probably emit more than currently assumed.
Genevieve L. Noyce and J. Patrick Megonigal
Biogeosciences, 18, 2449–2463, https://doi.org/10.5194/bg-18-2449-2021, https://doi.org/10.5194/bg-18-2449-2021, 2021
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Methane (CH4) is a potent greenhouse gas that contributes to global radiative forcing. A mechanistic understanding of how wetland CH4 cycling will respond to global warming is crucial for improving prognostic models. We present results from the first 4 years of a novel whole-ecosystem warming experiment in a coastal wetland, showing that warming increases CH4 emissions and identifying four potential mechanisms that can be added to future modeling efforts.
Yanan Zhao, Cathleen Schlundt, Dennis Booge, and Hermann W. Bange
Biogeosciences, 18, 2161–2179, https://doi.org/10.5194/bg-18-2161-2021, https://doi.org/10.5194/bg-18-2161-2021, 2021
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We present a unique and comprehensive time-series study of biogenic sulfur compounds in the southwestern Baltic Sea, from 2009 to 2018. Dimethyl sulfide is one of the key players regulating global climate change, as well as dimethylsulfoniopropionate and dimethyl sulfoxide. Their decadal trends did not follow increasing temperature but followed some algae group abundances at the Boknis Eck Time Series Station.
Ingeborg Bussmann, Irina Fedorova, Bennet Juhls, Pier Paul Overduin, and Matthias Winkel
Biogeosciences, 18, 2047–2061, https://doi.org/10.5194/bg-18-2047-2021, https://doi.org/10.5194/bg-18-2047-2021, 2021
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Arctic rivers, lakes, and bays are affected by a warming climate. We measured the amount and consumption of methane in waters from Siberia under ice cover and in open water. In the lake, methane concentrations under ice cover were much higher than in summer, and methane consumption was highest. The ice cover leads to higher methane concentration under ice. In a warmer Arctic, there will be more time with open water when methane is consumed by bacteria, and less methane will escape into the air.
Elisa Vainio, Olli Peltola, Ville Kasurinen, Antti-Jussi Kieloaho, Eeva-Stiina Tuittila, and Mari Pihlatie
Biogeosciences, 18, 2003–2025, https://doi.org/10.5194/bg-18-2003-2021, https://doi.org/10.5194/bg-18-2003-2021, 2021
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We studied forest floor methane exchange over an area of 10 ha in a boreal pine forest. The results demonstrate high spatial variability in soil moisture and consequently in the methane flux. We detected wet patches emitting high amounts of methane in the early summer; however, these patches turned to methane uptake in the autumn. We concluded that the small-scale spatial variability of the boreal forest methane flux highlights the importance of soil chamber placement in similar studies.
Matthias Koschorreck, Yves T. Prairie, Jihyeon Kim, and Rafael Marcé
Biogeosciences, 18, 1619–1627, https://doi.org/10.5194/bg-18-1619-2021, https://doi.org/10.5194/bg-18-1619-2021, 2021
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The concentration of carbon dioxide (CO2) in water samples is often measured using a gas chromatograph. Depending on the chemical composition of the water, this method can produce wrong results. We quantified the possible error and how it depends on water composition and the analytical procedure. We propose a method to correct wrong results by additionally analysing alkalinity in the samples. We provide an easily usable computer code to perform the correction calculations.
Julia Drewer, Melissa M. Leduning, Robert I. Griffiths, Tim Goodall, Peter E. Levy, Nicholas Cowan, Edward Comynn-Platt, Garry Hayman, Justin Sentian, Noreen Majalap, and Ute M. Skiba
Biogeosciences, 18, 1559–1575, https://doi.org/10.5194/bg-18-1559-2021, https://doi.org/10.5194/bg-18-1559-2021, 2021
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In Southeast Asia, oil palm plantations have largely replaced tropical forests. The impact of this shift in land use on greenhouse gas fluxes and soil microbial communities remains uncertain. We have found emission rates of the potent greenhouse gas nitrous oxide on mineral soil to be higher from oil palm plantations than logged forest over a 2-year study and concluded that emissions have increased over the last 42 years in Sabah, with the proportion of emissions from plantations increasing.
Lutz Merbold, Charlotte Decock, Werner Eugster, Kathrin Fuchs, Benjamin Wolf, Nina Buchmann, and Lukas Hörtnagl
Biogeosciences, 18, 1481–1498, https://doi.org/10.5194/bg-18-1481-2021, https://doi.org/10.5194/bg-18-1481-2021, 2021
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Our study investigated the exchange of the three major greenhouse gases (GHGs) over a temperate grassland prior to and after restoration through tillage in central Switzerland. Our results show that irregular management events, such as tillage, have considerable effects on GHG emissions in the year of tillage while leading to enhanced carbon uptake and similar nitrogen losses via nitrous oxide in the years following tillage to those observed prior to tillage.
Roland Vernooij, Marcos Giongo, Marco Assis Borges, Máximo Menezes Costa, Ana Carolina Sena Barradas, and Guido R. van der Werf
Biogeosciences, 18, 1375–1393, https://doi.org/10.5194/bg-18-1375-2021, https://doi.org/10.5194/bg-18-1375-2021, 2021
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We used drones to measure greenhouse gas emission factors from fires in the Brazilian Cerrado. We compared early-dry-season management fires and late-dry-season fires to determine if fire management can be a tool for abating emissions.
Although we found some evidence of increased CO and CH4 emission factors, the seasonal effect was smaller than that found in previous studies. For N2O, the third most important greenhouse gas, we found opposite trends in grass- and shrub-dominated areas.
Filippo Vingiani, Nicola Durighetto, Marcus Klaus, Jakob Schelker, Thierry Labasque, and Gianluca Botter
Biogeosciences, 18, 1223–1240, https://doi.org/10.5194/bg-18-1223-2021, https://doi.org/10.5194/bg-18-1223-2021, 2021
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Flexible foil chamber design and the anchored deployment might be useful techniques to enhance the robustness and the accuracy of CO2 measurements in low-order streams. Moreover, the study demonstrates the value of analytical and numerical techniques for the estimation of gas exchange velocities. These results may contribute to the development of novel procedures for chamber data analysis which might improve the robustness and reliability of chamber-based CO2 measurements in first-order streams.
Cited articles
Adamsen, A. P. S. and King, G. M.: Methane consumption in temperate
and subarctic forest soils: Rates, vertical zonation, and responses to water
and nitrogen, Appl. Environ. Microb., 59, 485–490, 1993.
Allaire, S. E., Lange, S. F., Lafond, J. A., Pelletier, B., Cambouris, A. N.,
and Dutilleul, P.: Multiscale spatial variability of CO2
emissions and correlations with physico-chemical soil properties,
Geoderma, 170, 251–260, https://doi.org/10.1016/j.geoderma.2011.11.019, 2012.
Anderson, T. R., Groffman, P. M., and Walter, M. T.: Using a soil
topographic index to distribute denitrification fluxes across a northeastern
headwater catchment, J. Hydrol., 522, 123–134, https://doi.org/10.1016/j.jhydrol.2014.12.043, 2015.
Ball, B. C., Dobbie, K. E., Parker, J. P., and Smith, K. A.: The
influence of gas transport and porosity on methane oxidation in soils, J. Geophys. Res.,
102, 301–308, 1997.
Bartlett, K. B. and Harriss, R. C.: Review and assessment of methane
emissions from wetlands, Chemosphere, 26, 261–320,
https://doi.org/10.1016/0045-6535(93)90427-7, 1993.
Bartlett, K. B., Crill, P. M., Sass, R. L., Harriss, R. C., and Dise, N. B.:
Methane emissions from tundra environments in the Yukon-Kuskokwim
Delta, Alaska, J. Geophys. Res., 97, 16645–16660, 1992.
Batson, J., Noe, G. B., Hupp, C. R., Krauss, K. W., Rybicki, N. B., and
Schenk, E. R.: Soil greenhouse gas emissions and carbon budgeting in a
short-hydroperiod floodplain wetland, J. Geophys. Res.-Biogeo., 120, 77–95,
https://doi.org/10.1002/2014JG002817, 2015.
Bernhardt, E. S., Blaszczak, J. R., Ficken, C. D., Fork, M. L., Kaiser, K.
E., and Seybold, E. C.: Control Points in Ecosystems: Moving Beyond the Hot
Spot Hot Moment Concept, Ecosystems, 20, 665–682, https://doi.org/10.1007/s10021-016-0103-y,
2017.
Beven, K. J. and Kirkby, M. J.: A physically based, variable
contributing area model of basin hydrology, Hydrol. Sci. B., 24, 43–69,
1978.
Blagodatsky, S. and Smith, P.: Soil physics meets soil biology: Towards
mechanistic prediction of greenhouse gas emissions from soil, Soil Biol. Biochem., 47, 78–92,
https://doi.org/10.1016/j.soilbio.2011.12.015, 2012.
Blazewicz, S. J., Petersen, D. G., Waldrop, M. P., and Firestone, M. K.:
Anaerobic oxidation of methane in tropical and boreal soils: Ecological
significance in terrestrial methane cycling, J. Geophys. Res.-Biogeo., 117, 1–10,
https://doi.org/10.1029/2011JG001864, 2012.
Boeckx, P., Van Cleemput, O., and Villaralvo, I.: Methane oxidation in
soils with different textures and land use, Nutr. Cycl. Agroecosys., 49, 91–95,
https://doi.org/10.1023/A:1009706324386, 1997.
Böhner, J. and Antonic, O.: Land-surface parameters specific to
topo-climatology, in: Geomorphometry: Concepts, Software, Applications. Developments in Soil Science,
edited by: Hengl, T. and Reuter, H. I., Elsevier, Amsterdam, the Netherlands,
33, 1–28, 2009.
Born, M., Dorr, H., and Levin, I.: Methane consumption in aerated soils
of the temperate zone, Tellus, 42B, 2–8, 1990.
Bowden, R. D., Newkirk, K. M., and Rullo, G. M.: Carbon dioxide and
methane fluxes by a forest soil under laboratory-controlled moisture and
temperature conditions, Soil Biol. Biochem., 30, 1591–1597,
https://doi.org/10.1016/S0038-0717(97)00228-9, 1998.
Bradford, M. A., Ineson, P., Wookey, P. A., and Lappin-Scott, H. M.:
Role of CH4 oxidation, production and transport in forest soil CH4
flux, Soil Biol. Biochem., 33, 1625–1631, 2001.
Bridgham, S. D., Cadillo-Quiroz, H., Keller, J. K., and Zhuang, Q.:
Methane emissions from wetlands: Biogeochemical, microbial, and modeling
perspectives from local to global scales, Glob. Change Biol., 19, 1325–1346,
https://doi.org/10.1111/gcb.12131, 2013.
Bubier, J. L., Moore, T. R., Bellisario, L., Comer, N. T., and Crill, P. M.:
Ecological controls on methane emissions from a northern peatland
complex in the zone of discontinuous permafrost, Manitoba, Canada, Global Biogeochem. Cy., 9,
455–470, https://doi.org/10.1029/95GB02379, 1995.
Buckingham, E.: Contributions to our knowledge of the aeration of
soils, USDA Soil Bull., 25, 1–52, 1904.
Burt, T. P. and Pinay, G.: Linking hydrology and biogeochemistry in
complex landscapes, Prog. Phys. Geog., 29, 297–316, https://doi.org/10.1191/0309133305pp450ra,
2005.
Castaldi, S. and Fierro, A.: Soil-atmosphere methane exchange in
undisturbed and burned Mediterranean shrubland of southern Italy,
Ecosystems, 8, 182–190, https://doi.org/10.1007/s10021-004-0093-z, 2005.
Castaldi, S., Ermice, A., and Strumia, S.: Fluxes of N2O and
CH4 from soils of savannas and seasonally-dry ecosystems, J. Biogeogr., 33,
401–415, https://doi.org/10.1111/j.1365-2699.2005.01447.x, 2006.
Castro, M. S., Steudler, A., Melillo, M., Aber, J. D., and Bowden, R. D.:
Factors controlling atmospheric methane consumption by temperate forest
soils, Global Biogeochem. Cy., 9, 1–10, 1995.
Clark, J. S.: Fire and Climate Change During the Last 750 Yr in
Northwestern Minnesota, Ecol. Monogr., 60, 135–159, 1990.
Conrad, R.: Soil microorganisms as controllers of atmospheric trace
gases (H2, CO, CH4, OCS, N2O, and NO), Microbiol. Rev., 60, 609–640,
1996.
Corre, M. D., van Kessel, C., and Pennock, D. J.: Landscape and
seasonal patterns of nitrous oxide emissions in a semiarid region, Soil Sci. Soc. Am. J.,
60, 1806, https://doi.org/10.2136/sssaj1996.03615995006000060028x, 1996.
Creed, I. F. and Beall, F. D.: Distributed topographic indicators for
predicting nitrogen export from headwater catchments, Water Resour. Res., 45, W10407,
https://doi.org/10.1029/2008WR007285, 2009.
Creed, I. F. and Sass, G. Z.: Digital terrain analysis approaches for
tracking hydrological and biogeochemical pathways and processes in forested
landscapes, in: Forest Hydrology and Biogeochemistry: Synthesis of Past Research and Future Directions, edited by: Levia, D. F., Carlyle-Moses, D., and
Tanaka, T., 216, 69–100, Springer, the Netherlands, 2011.
Creed, I. F., Trick, C. G., Band, L. E., and Morrison, I. K.:
Characterizing the spatial pattern of soil carbon and nitrogen pools in the
Turkey Lakes Watershed: A comparison of regression techniques, Water Air Soil Poll., 2, 81–102,
2002.
Creed, I. F., Miller, J., Aldred, D., Adams, J. K., Spitale, S., and
Bourbonniere, R. A.: Hydrologic profiling for greenhouse gas effluxes from
natural grasslands in the prairie pothole region of Canada, J. Geophys. Res.-Biogeo., 118, 680–697,
https://doi.org/10.1002/jgrg.20050, 2013.
Czepiel, P. M., Crill, P. M., and Harriss, R. C.: Environmental factors
influencing the variability of methane oxidation in temperate zone soils,
J. Geophys. Res., 100, 9359–9364, 1995.
Dalal, R. C. and Allen, D. E.: Greenhouse gas fluxes from natural
ecosystems, Aust. J. Bot., 56, 369–407, https://doi.org/10.1071/bt07128, 2008.
Dalal, R. C., Allen, D. E., Livesley, S. J., and Richards, G.: Magnitude
and biophysical regulators of methane emission and consumption in the
Australian agricultural, forest, and submerged landscapes: a review, Plant Soil,
309, 43–76, https://doi.org/10.1007/s11104-007-9446-7, 2008.
Davidson, E. A. and Swank, W. T.: Environmental parameters regulating
gaseous nitrogen losses from two forested ecosystems via nitrification and
denitrification, Appl. Environ. Microb., 52, 1287–1292, 1986.
Del Grosso, S. J., Parton, W. J., Mosier, A. R., Ojima, D. S., Potter, C. S.,
Brumme, R., Dobbie, P. M. C. K., and Smith, K. A.: General CH4
oxidation model and comparisons of CH4 oxidation in natural and managed
systems, Global Biogeochem. Cy., 14, 999–1019, 2000.
Denmead, O. T.: Approaches to measuring fluxes of methane and nitrous
oxide between landscapes and the atmosphere, Plant Soil, 309, 5–24,
https://doi.org/10.1007/s11104-008-9599-z, 2008.
Devito, K. J., Creed, I. F., Rothwell, R. L., and Prepas, E. E.:
Landscape controls on phosphorus loading to boreal lakes: implications for
the potential impacts of forest harvesting, Can. J. Fish. Aquat. Sci., 57, 1977–1984,
https://doi.org/10.1139/cjfas-57-10-1977, 2000.
Dormann, C., Elith, J., Bacher, S., Buchmann, C., Carl, G., Carré, G., García
Marquéz, J. R., Gruber, B., Lafourcade, B., Leitão, P. J., Münkemüller,
T., Mcclean, C., Osborne, P. E., Reineking, B., Schröder, B., Skidmore, A. K., Zurell,
D., and Lautenbach, S.: Collinearity: a review of methods to deal with it and a
simulation study evaluating their performance, Ecography, 36,
27–4, https://doi.org/10.1111/j.1600-0587.2012.07348.x,
2013.
Dorr, H., Katruff, L., and Levin, I.: Soil texture parameterization of
the methane uptake in aerated soils, Chemosphere, 26, 697–713, 1993.
Du, Z., Riveros-Iregui, D. A., Jones, R. T., McDermott, T. R., Dore, J. E., McGlynn, B.
L., Emanuel, R. E., and Li, X.: Landscape position influences
microbial composition and function via redistribution of soil water across a
watershed, Appl. Environ. Microb., 81, 8457–8468, https://doi.org/10.1128/AEM.02643-15,
2015.
Duncan, J. M., Groffman, P. M., and Band, L. E.: Towards closing the
watershed nitrogen budget: Spatial and temporal scaling of denitrification,
J. Geophys. Res.-Biogeo., 118, 1105–1119, https://doi.org/10.1002/jgrg.20090,
2013.
Dunfield, P. F.: The soil methane sink, in: Greenhouse Gas Sinks, edited by: Reay, D. S.,
Hewitt, N. C., Smith, K. A., and Grace, J., 152–170, 2007.
Emanuel, R. E., Epstein, H. E., McGlynn, B. L., Welsch, D. L., Muth, D. J., and
D'Odorico, P.: Spatial and temporal controls on watershed ecohydrology
in the northern Rocky Mountains, Water Resour. Res., 46, W11553, https://doi.org/10.1029/2009wr008890,
2010.
Farnes, P., Shearer, R. C., Mccaughey, W. W., and Hansen, K. J.:
Comparisons of hydrology, geology, and physical characteristics between Tenderfoot Creek Experimental
Forest Montana and Coram Experimental Forest Montana, USDA, USFS, Bozeman, MT, USA,
1995.
Fiedler, S. and Sommer, M.: Methane emissions, groundwater levels and
redox potentials of common wetland soils in a temperate-humid climate,
Global Biogeochem. Cy., 14, 1081–1093, https://doi.org/10.1029/1999GB001255,
2000.
Florinsky, I. V., McMahon, S., and Burton, D. L.: Topographic control
of soil microbial activity: A case study of denitrifiers, Geoderma, 119, 33–53,
https://doi.org/10.1016/S0016-7061(03)00224-6, 2004.
Forman, R. T. T. and Godron, M.: Patches and structural components
for a landscape ecology, Bioscience, 31, 28977–28985, 1981.
Gauthier, M., Bradley, R. L., and Šimek, M.: More evidence that
anaerobic oxidation of methane is prevalent in soils: Is it time to upgrade
our biogeochemical models?, Soil Biol. Biochem., 80, 167–174, https://doi.org/10.1016/j.soilbio.2014.10.009,
2015.
Ghanbarian, B. and Hunt, A. G.: Universal scaling of gas diffusion in
porous media, Water Resour. Res., 50, 2242–2256, 2014.
Groffman, P. M.: Terrestrial denitrification: challenges and
opportunities, Ecol. Process., 1, 1–11, https://doi.org/10.1186/2192-1709-1-11,
2012.
Hall, S. J., McDowell, W. H., and Silver, W. L.: When wet gets wetter:
Decoupling of moisture, redox biogeochemistry, and greenhouse gas fluxes in
a humid tropical forest soil, Ecosystems, 16, 576–589,
https://doi.org/10.1007/s10021-012-9631-2, 2012.
Hanson, R. S. and Hanson, T. E.: Methanotrophic bacteria,
Microbiol. Rev., 60, 439–471, 1996.
Hedin, L. O., von Fischer, J. C., Ostrom, N. E., Kennedy, B. P., Brown, M.
G., and Robertson, G. P.: Thermodynamic constraints on nitrogen
transformations and other biogeochemical processes at soil-stream
interfaces, Ecology, 79, 684–703, 1998a.
Hedin, L. O., von Fischer, J. C., Ostrom, N. E., Kennedy, B. P., Brown, M.
G., and Robertson, G. P.: Thermodynamic contraints on nitrogen
transformations and other biogeochemical processes at soil-stream
interfaces, Ecology, 79, 684–703, 1998b.
Imer, D., Merbold, L., Eugster, W., and Buchmann, N.: Temporal and spatial
variations of soil CO2, CH4 and N2O fluxes at three differently managed
grasslands, Biogeosciences, 10, 5931–5945,
https://doi.org/10.5194/bg-10-5931-2013, 2013.
IPCC: Climate Change 2014: Synthesis Report. Contribution of Working
Groups I, II and III to the Fifth Assessment Report of the Intergovernmental
Panel on Climate Change (Core Writing Team, edited by: Pachauri, R. K. and Meyer, L. A.). IPCC, Geneva, Switzerland, 151 pp.,
2014.
Itoh, M., Ohte, N., Koba, K., Katsuyama, M., Hayamizu, K., and Tani, M.:
Hydrologic effects on methane dynamics in riparian wetlands in a temperate
forest catchment, J. Geophys. Res.-Biogeo., 112, G01019, https://doi.org/10.1029/2006JG000240,
2007.
Jencso, K. G. and McGlynn, B. L.: Hierarchical controls on runoff
generation: Topographically driven hydrologic connectivity, geology, and
vegetation, Water Resour. Res., 47, W11527, https://doi.org/10.1029/2011WR010666, 2011.
Jencso, K. G., McGlynn, B. L., Gooseff, M. N., Wondzell, S. M., Bencala, K.
E., and Marshall, L. A.: Hydrologic connectivity between landscapes and
streams: Transferring reach- and plot-scale understanding to the catchment
scale, Water Resour. Res., 45, 1–16, https://doi.org/10.1029/2008WR007225,
2009.
Jencso, K. G., McGlynn, B. L., Gooseff, M. N., Bencala, K. E., and
Wondzell, S. M.: Hillslope hydrologic connectivity controls riparian
groundwater turnover: Implications of catchment structure for riparian
buffering and stream water sources, Water Resour. Res., 46, W10524,
https://doi.org/10.1029/2009wr008818, 2010.
Kaiser, K. E., McGlynn, B. L., and Dore, J. E.: Terrain
Metrics, Soil Characteristics, and Seasonal Methane Flux at TCEF, 2013,
HydroShare, https://www.hydroshare.org/resource/, last access: 22 May
2018.
Kelleher, C., McGlynn, B., and Wagener, T.: Characterizing and reducing
equifinality by constraining a distributed catchment model with regional
signatures, local observations, and process understanding, Hydrol. Earth
Syst. Sci., 21, 3325–3352, https://doi.org/10.5194/hess-21-3325-2017, 2017.
King, G. M. and Adamsen, A. P. S.: Effects of temperature on methane
consumption in a forest soil and in pure cultures of the methanotroph Methylomonas rubra,
Appl. Environ. Microb., 58, 2758–2763, 1992.
Kirschke, S., Bousquet, P., Ciais, P., et al.: Three decades of global methane sources and
sinks, Nat. Geosci., 6, 813–823, https://doi.org/10.1038/ngeo1955, 2013.
Konda, R., Ohta, S., Ishizuka, S., Heriyanto, J., and Wicaksono, A.:
Seasonal changes in the spatial structures of N2O, CO2, and
CH4 fluxes from Acacia mangium plantation soils in Indonesia, Soil Biol. Biochem.,
42, 1512–1522, https://doi.org/10.1016/j.soilbio.2010.05.022, 2010.
Koschorreck, M. and Conrad, R.: Oxidation of atmospheric methane in
soil: Measurements in the field, in soil cores and in soil samples, Global Biogeochem. Cy.,
7, 109–121, 1993.
Lavigne, M. B., Ryan, M. G., Anderson, D. E., Baldocchi, D. D., Crill, P. M.,
Fitzjarrald, D. R., Goulden, M. L., Gower, S. T., Massheder, J. M., McCaughey,
J. H., Rayment, M., and Striegl, R. G.: Comparing nocturnal eddy covariance
measurements to estimates of ecosystem respiration made by scaling chamber
measurements at six coniferous boreal sites, J. Geophys. Res., 102,
28977, https://doi.org/10.1029/97JD01173, 1997.
Le Mer, J., Roger, P., Provence, D., and Luminy, D.: Production,
oxidation, emission and consumption of methane by soils: A review, Eur. Soil Biol., 37,
25–50, 2001.
Liptzin, D., Silver, W. L., and Detto, M.: Temporal dynamics in soil
oxygen and greenhouse gases in two humid tropical forests, Ecosystems, 14, 171–182,
https://doi.org/10.1007/s10021-010-9402-x, 2011.
Lohse, K. A., Brooks, P. D., McIntosh, J. C., Meixner, T., and Huxman, T. E.:
Interactions between biogeochemistry and hydrologic systems, Annu. Rev. Env. Resour., 34,
65–96, https://doi.org/10.1146/annurev.environ.33.031207.111141, 2009.
Lumley, T. and Miller, A.: Leaps: Regression subset selection, R
package version 2.9, 2009.
Luo, G. J., Kiese, R., Wolf, B., and Butterbach-Bahl, K.: Effects of soil
temperature and moisture on methane uptake and nitrous oxide emissions across
three different ecosystem types, Biogeosciences, 10, 3205–3219,
https://doi.org/10.5194/bg-10-3205-2013, 2013.
Maindonald, J. H. and Braun, W. J.: DAAG: Data Analysis and Graphics
Data and Functions, R package version 1.22, https://CRAN.R-project.org/package=DAAG (last access: April 2017), 2015.
Massman, W. J.: A review of the molecular diffusivities of H2O,
CO2, CH4, CO, O3, SO2, NH3, N2O, NO, and
NO2 in air, O2 and N2 near STP, Atmos. Environ., 32, 1111–1127,
1998.
McGlynn, B. L. and Seibert, J.: Distributed assessment of
contributing area and riparian buffering along stream networks, Water Resour. Res., 39, 1082,
https://doi.org/10.1029/2002wr001521, 2003.
McLain, J. E. T. and Martens, D. A.: Studies of methane fluxes reveal that desert soils can mitigate global climate change, Southwest Watershed Research
Center, USDA Forest Service, Tucson, AZ, USA, 2005.
Meixner, F. X. and Eugster, W.: Effects of landscape pattern and
topography on emissions and transport, in: Integrating Hydrology, Ecosystem Dynamics, and Biogeochemistry in Complex Landscapes, edited by: Tenhunen, J. D. and
Kabat, P., 143–175, John Wiley & Sons Ltd, Berlin, Germany, 1999.
Mengistu, S. G., Creed, I. F., Webster, K. L., Enanga, E., and Beall, F. D.:
Searching for similarity in topographic controls on carbon, nitrogen
and phosphorus export from forested headwater catchments, Hydrol. Process., 28, 3201–3216,
https://doi.org/10.1002/hyp.9862, 2014.
Mincemoyer, S. A. and Birdsall, J. L.: Vascular flora of the
Tenderfoot Creek Experimental Forest, Little Belt Mountains, Montana,
Madroño, 53, 211–222, https://doi.org/10.3120/0024-9637(2006)53[211:VFOTTC]2.0.CO;2,
2006.
Møldrup, P., Chamindu, D., Hamamoto, S., Komatsu, T., Kawamoto, K.,
Rolston, D. E., and de Jonge, L. W.: Structure-dependent water-induced linear
reduction model for predicting gas diffusivity and tortuosity in repacked
and intact soil, Vadose Zone J., 12, 1–11, 2014.
Moore, T. R. and Roulet, N. T.: Methane flux: Water table relations
in northern wetlands, Geophys. Res. Lett., 20, 587–590, 1993.
Nicolini, G., Castaldi, S., Fratini, G., and Valentini R.: A literature
overview of micrometeorological CH4 and N2O flux measurements in
terrestrial ecosystems, Atmos. Environ., 81, 311–319, https://doi.org/10.1016/j.atmosenv.2013.09.030,
2013.
Nippert, J. B., Ocheltree, T. W., Orozco, G. L., Ratajczak, Z., Ling, B.,
Skibbe, A. M.: Evidence of physiological decoupling from Grassland ecosystem
drivers by an encroaching woody shrub, PLoS ONE, 8, e81630,
https://doi.org/10.1371/journal.pone.0081630, 2013.
Nippgen, F., McGlynn, B. L., Marshall, L. A., and Emanuel, R. E.: Landscape
structure and climate influences on hydrologic response, Water Resour. Res.,
47, W12528, https://doi.org/10.1029/2011WR011161, 2011.
Otter, L. B. and Scholes, M. C.: Methane sources and sinks in a
periodically flooded South African savanna, Global Biogeochem. Cy., 14, 97–111,
2000.
Pacific, V. J., McGlynn, B. L., Riveros-Iregui, D. A., Welsch, D. L., and
Epstein, H. E.: Landscape structure, groundwater dynamics, and soil water
content influence soil respiration across riparian-hillslope transitions in
the Tenderfoot Creek Experimental Forest, Montana, Hydrol. Process., 25, 811–827,
https://doi.org/10.1002/hyp.7870, 2011.
Paerl, H. W. and Pinckney, J. L.: A Mini-review of microbial
consortia: Their roles in aquatic production and biogeochemical cycling,
Microb. Ecol., 31, 225–247, 1996.
Phillips, S. J. and Dudik, M.: Modeling of species distributions with
maxent: new extensions and a comprehensive evaluation, Ecography, 31, 161–175,
https://doi.org/10.1111/j.0906-7590.2008.5203.x, 2008.
Phillips, S. J., Anderson, R. P., and Shapire, R. E.: Maximum entropy
modeling of species geographic distribution, Ecol. Model., 190, 231–259, https://doi.org/10.1016/j.ecolmodel.2005.03.026, 2006.
Phillips, S. J. and Dudik, M.: Modeling of species distributions with
maxent: new extensions and a comprehensive evaluation, Ecography, 31, 161–175,
https://doi.org/10.1111/j.0906-7590.2008.5203.x, 2008.
Potter, C. S. S., Davidson, E. A., Verchot, L. V., Davidsonz, E. A., and
Verchotz, L. V.: Estimation of global biogeochemical controls and
seasonality in soil methane consumption, Chemosphere, 32, 2219–2246,
1996.
Price, S. J., Kelliher, F. M., Sherlock, R. R., and Tate, K. R.:
Environmental and chemical factors regulating methane oxidation in a New
Zealand forest soil, Aust. J. Soil Res., 42, 767–776, https://doi.org/10.1071/SR04026,
2004.
R Core Team: R: A language and environment for statistical computing.
R Foundation for Statistical Computing, Vienna, Austria, available at: https://www.R-project.org/ (last access: 30 November 2017), 2016.
Reynolds, J. and Wu, J.: Do landscape structural and functional units
exist?, in: Integrating Hydrology, Ecosystem Dynamics, and Biogeochemistry in Complex Landscapes, edited by: Tenhunen, J. D. and Kabat, P., 273–296, John Wiley
& Sons Ltd., Chichester, UK, 1999.
Richter, J., Kersebaum, K. C., and Willenbockel, I.: Gaseous diffusion
reflecting soil structure, Z. Pflanz. Bodenkunde, 154, 13–19, 1991.
Riveros-Iregui, D. A. and McGlynn, B. L.: Landscape structure control
on soil CO2 efflux variability in complex terrain: Scaling from point
observations to watershed scale fluxes, J. Geophys. Res., 114, G02010,
2009.
Saari, A., Heiskanen, J., and Martikainen, P. J.: Effect of the organic
horizon on methane oxidation and uptake in soil of a boreal Scots pine
forest, FEMS Microbiol. Ecol., 26, 245–255, https://doi.org/10.1016/S0168-6496(98)00040-3,
1998.
Sakabe, A., Kosugi, Y., Okumi, C., Itoh, M., and Takahashi, K.: Impacts
of riparian wetlands on the seasonal variations of watershed-scale methane
budget in a temperate monsoonal forest, J. Geophys. Res.-Biogeo., 121, 1717–1732, https://doi.org/10.1002/2015JG003292,
2016.
Schmidt, W. C. and Friede, J. L.: Experimental forests, ranges, and watersheds in the northern Rocky Mountains: A compendium of outdoor laboratories
in Utah, Idaho, and Montana, USDS Forest Service,
Intermountain Research Station, Logan, UT, USA, 1996.
Schwarz, G.: Estimating the dimension of a model, Ann. Stat., 6, 461–464,
1978.
Segers, R.: Methane production and methane consumption: A review of
processes underlying wetland methane fluxes, Biogeochemistry, 41, 23–51,
https://doi.org/10.1023/A:1005929032764, 1998.
Seibert, J., and McGlynn, B. L.: A new triangular multiple flow
direction algorithm for computing upslope areas from gridded digital
elevation models, Water Resour. Res., 43, W04501, https://doi.org/10.1029/2006wr005128,
2007.
Shannon, R. D., White, J. R., Lawson, J. E., and Gilmour, B. S.: Methane
efflux from emergent vegetation in peatlands, J. Ecol., 84, 239–246,
https://doi.org/10.2307/2261359, 1996.
Shrestha, P. M., Kammann, C., Lenhart, K., Dam, B., and Liesack, W.:
Linking activity, composition and seasonal dynamics of atmospheric methane
oxidizers in a meadow soil, ISME J., 6, 1115–1126, https://doi.org/10.1038/ismej.2011.179,
2012.
Silver, W. L., Lugo, A. E., and Keller, M.: Soil oxygen availability
and biogeochemical cycling along elevation and topographic gradients in
Puerto Rico, Biogeochemistry, 44, 301–328, 1999.
Sitaula, B. K., Bakken, L. R., and Abrahamsen, G.: CH4 uptake by
temperate forest soil: Effect of N input and soil acidification, Soil Biol. Biochem., 27,
871–880, https://doi.org/10.1016/0038-0717(95)00017-9, 1995.
Smith, K. A., Dobbie, K. E., Ball, B. C., Bakken, L. R., Sitaula, B. K.,
Hansen, S., Brumme, R., Borken, W., Christensen, S., Priemé, A., Fowler, D.,
Macdonald, J. A., Skiba, U., Klemedtsson, L., Kasimir-Klemedtsson, A.,
Degórska, A., and Orlanski, P.: Oxidation of atmospheric methane in Northern
European soils, comparison with other ecosystems, and uncertainties in the
global terrestrial sink, Glob. Change Biol., 6, 791–803,
https://doi.org/10.1046/j.1365-2486.2000.00356.x, 2000.
Smith, K. A., Ball, T., Conen, F., Dobbie, K. E. E., Massheder, J., and Rey,
A.: Exchange of greenhouse gases between soil and atmosphere:
interactions of soil physical factors and biological processes, Eur. J. Soil Sci., 54,
779–791, https://doi.org/10.1046/j.1351-0754.2003.0567.x, 2003.
Sotta, E. D., Meir, P., Malhi, Y., Nobre, A. D., Hodnett, M., and Grace, J.:
Soil CO2 efflux in a tropical forest in the central Amazon,
Glob. Change Biol., 10, 601–617, 2004.
Steinkamp, R., Butterbach-Bahl, K., and Papen, H.: Methane oxidation by
soils of a N-limited and N-fertilized spruce forest in the Black Forest,
Germany., Soil Biol. Biochem., (33), 145–153, 2001.
Sullivan, B. W., Selmants, P. C., and Hart, S. C.: Does dissolved
organic carbon regulate biological methane oxidation in semiarid soils?,
Glob. Change Biol., 19, 2149–2157, https://doi.org/10.1111/gcb.12201, 2013.
Sun, L., Song, C., Miao, Y., Qiao, T., and Gong, C.: Temporal and spatial
variability of methane emissions in a northern temperate marsh, Atmos. Environ., 81,
356–363, https://doi.org/10.1016/j.atmosenv.2013.09.033, 2013.
Tague, C. L. and Band, L. E.: Evaluating explicit and implicit
routing for watershed hydro-ecological models of forest hydrology at the
small catchment scale, Hydrol. Process., 15, 1415–1440, 2001.
Tang, X., Liu, S., Zhou, G., Zhang, D., and Zhou, C.:, Soil-atmospheric
exchange of CO2, CH4, and N2O in three subtropical forest
ecosystems in southern China, Glob. Change Biol., 12, 546–560,
https://doi.org/10.1111/j.1365-2486.2006.01109.x, 2006.
Teh, Y. A., Silver, W. L., and Conrad, M. E.: Oxygen effects on methane
production and oxidation in humid tropical forest soils, Glob. Change Biol., 11, 1283–1297,
https://doi.org/10.1111/j.1365-2486.2005.00983.x, 2005.
Teh, Y. A., Diem, T., Jones, S., Huaraca Quispe, L. P., Baggs, E., Morley,
N., Richards, M., Smith, P., and Meir, P.: Methane and nitrous oxide fluxes
across an elevation gradient in the tropical Peruvian Andes, Biogeosciences,
11, 2325–2339, https://doi.org/10.5194/bg-11-2325-2014, 2014.
Tian, H., Xu, X., Liu, M., Ren, W., Zhang, C., Chen, G., and Lu, C.: Spatial
and temporal patterns of CH4 and N2O fluxes in terrestrial ecosystems of
North America during 1979–2008: application of a global biogeochemistry
model, Biogeosciences, 7, 2673–2694, https://doi.org/10.5194/bg-7-2673-2010,
2010.
Tian, H., Chen, G., Lu, C., Xu, X., Ren, W., Zhang, B., Banger, K., Pan, S., Liu, M.,
Zhang, C., Bruhwiler, L., and Wofsy, S.: Global methane and nitrous oxide emissions from
terrestrial ecosystems due to multiple environmental changes, Ecosyst. Heal. Sustain.,
1, 1–20, 2014.
Torn, M. and Harte, J.: Methane consumption by montane soils:
implications for positive and negative feedback with climatic change,
Biogeochemistry, 32, 53–67, https://doi.org/10.1007/BF00001532, 1996.
Ullah, S. and Moore, T. R.: Biogeochemical controls on methane,
nitrous oxide, and carbon dioxide fluxes from deciduous forest soils in
eastern Canada, J. Geophys. Res., 116, G03010, https://doi.org/10.1029/2010jg001525,
2011.
Updegraff, K., Pastor, J., Bridgham, S. D., and Johnston, C. A.:
Environmental, and substrate controls over carbon and nitrogen
mineralization in Northen wetlands, Ecol. Appl., 5, 151–163,
https://doi.org/10.2307/1942060, 1995.
Urban, D. L., Miller, C., Halpin, P. N., and Stephenson, N. L.: Forest
gradient response in Sierran landscapes: the physical template, Landsc. Ecol., 15,
603–620, 2000.
Valentine, D. W., Holland, E. A., and Schimel, D. S.: Ecosystem and
physiological controls over methane production in northern wetlands, J. Geophys. Res., 99,
1563–1571, 1994.
Verchot, L. V., Davidson, E. A., Cattânio, J. H., and Ackerman, I. L.:
Land-use change and biogeochemical controls of methane fluxes in
soils of eastern Amazonia, Ecosystems, 3, 41–56, https://doi.org/10.1007/s100210000009,
2000.
Vidon, P., Jacinthe, P. A., Liu, X., Fisher, K., and Baker, M.:
Hydrobiogeochemical controls on riparian nutrient and greenhouse gas
dynamics: 10 years post-restoration, J. Am. Water Resour. As., 50, 639–652,
https://doi.org/10.1016/j.jhydrol.2007.05.016, 2014.
Vidon, P., Marchese, S., Welsh, M., and McMillan, S.: Short-term spatial
and temporal variability in greenhouse gas fluxes in riparian zones,
Environ. Monit. Assess., 187, 503, https://doi.org/10.1007/s10661-015-4717-x,
2015.
von Fischer, J. C. and Hedin, L. O.: Separating methane production
and consumption with a field-based isotope pool dilution technique, Global Biogeochem. Cy.,
16, 8-1–8-13, https://doi.org/10.1029/2001GB001448, 2002.
von Fischer, J. C. and Hedin, L. O.: Controls on soil methane fluxes:
Tests of biophysical mechanisms using stable isotope tracers, Global Biogeochem. Cy.,
21, GB2007, https://doi.org/10.1029/2006GB002687, 2007.
von Fischer, J. C., Butters, G., Duchateau, P. C., Thelwell, R. J., and
Siller, R.: In situ measures of methanotroph activity in upland soils: A
reaction diffusion model and field observation of water stress, J. Geophys. Res.-Biogeo., 114,
1–12, https://doi.org/10.1029/2008JG000731, 2009.
Wachinger, G., Fiedler, S., Zepp, K., Gattinger, A., Sommer, M., and Roth K.:
Variability of soil methane production on the micro-scale: spatial
association with hot spots of organic material and Archaeal populations,
Soil Biol. Biochem., 32, 1121–1130, https://doi.org/10.1016/S0038-0717(00)00024-9,
2000.
Wang, L., Zou, C., Donnell, F. O., Good, S., Franz, T., Miller, G. R.,
Caylor, K. K., Cable, J. M., and Bond, B.: Characterizing ecohydrological and
biogeochemical connectivity across multiple scales: a new conceptual
framework, Ecohydrology, 5, 221–233, https://doi.org/10.1002/eco.187, 2012.
Webster, K. L., Creed, I. F., Bourbonnière, R. A. and
Beall, F. D.: Controls on the heterogeneity of soil respiration in a
tolerant hardwood forest, J. Geophys. Res., 113, G03018, https://doi.org/10.1029/2008JG000706,
2008.
Wei, D., Xu-Ri, Tenzin-Tarchen, Wang, Y., and Wang, Y.: Considerable
methane uptake by alpine grasslands despite the cold climate: In situ
measurements on the central Tibetan Plateau, 2008–2013, Glob. Change Biol., 21, 777–788,
https://doi.org/10.1111/gcb.12690, 2014.
Welsch, D. L., Burns, D. A., and Murdoch, P. S.: Processes affecting
the response of sulfate concentrations to clearcutting in a northern
hardwood forest, Catskill Mountains, New York, USA, Biogeochemistry, 68, 337–354,
https://doi.org/10.1023/B:BIOG.0000031034.48927.1e, 2004.
West, A. E. and Schmidt, S. K.: Wetting stimulates atmospheric
CH4 oxidation by alpine soil, FEMS Microbiol. Ecol., 25, 349–353,
1998.
Western, A. W., Grayson, R. B., Blöschl, G., Willgoose, G. R., and
McMahon, T. A.: Observed spatial organization of soil moisture and its
relation to terrain indices, Water Resour. Res., 35, 797–810, 1999.
Whiting, G. J. and Chanton, J. P.: Primary production control of
methane emission from wetlands, Nature, 364, 794–795, https://doi.org/10.1038/364794a0,
1993.
Wolf, B., Chen, W., Brüggemann, N., Zheng, X., Pumpanen, J., and
Butterbach-Bahl, K.: Applicability of the soil gradient method for
estimating soil-atmosphere CO2, CH4, and N2O fluxes for
steppe soils in Inner Mongolia, J. Plant Nutr. Soil Sc., 174, 359–372, https://doi.org/10.1002/jpln.201000150,
2011.
Wood, E. F., Sivapalan, M., Beven, K., and Band, L.: Effects of spatial
variability and scale with implications to hydrologic modeling, J. Hydrol., 102, 29–47,
1988.
Wu, X., Yao, Z., Brüggemann, N., Shen, Z. Y., Wolf, B., Dannenmann, M.,
Zheng, X., and Butterbach-Bahl, K.: Effects of soil moisture and
temperature on CO2 and CH4 soil-atmosphere exchange of various
land use/cover types in a semi-arid grassland in Inner Mongolia, China,
Soil Biol. Biochem., 42, 773–787, https://doi.org/10.1016/j.soilbio.2010.01.013,
2010.
Yu, K., Faulkner, S. P., and Baldwin, M. J.: Effect of hydrological
conditions on nitrous oxide, methane, and carbon dioxide dynamics in a
bottomland hardwood forest and its implication for soil carbon
sequestration, Glob. Change Biol., 14, 798–812, https://doi.org/10.1111/j.1365-2486.2008.01545.x,
2008.
Yvon-Durocher, G., Allen, A. P., Bastviken, D., Conrad, R., Gudasz, C.,
St-Pierre, A., Thanh-Duc, N., and del Giorgio, P. A.: Methane fluxes show
consistent temperature dependence across microbial to ecosystem scales,
Nature, 507, 488–491, https://doi.org/10.1038/nature13164, 2014.
Short summary
Soil methane (CH4) fluxes are highly variable across natural landscapes, yet research on the variability of fluxes in unsaturated soils has not been as prevalent as in saturated portions of the landscape. In this study we measured CH4 fluxes and environmental variables across a small mountainous watershed in central Montana. We found that CH4 consumption in upland soils increased as the watershed became more dry and that a combination of terrain metrics can represent 47 % of the variability.
Soil methane (CH4) fluxes are highly variable across natural landscapes, yet research on the...
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