Biogeosciences www.biogeosciences.net 1726-4170 1726-4189 6 4 2009 10.5194/bg-6-585-2009 http://www.biogeosciences.net/6/585/2009/ http://www.biogeosciences.net/6/585/2009/bg-6-585-2009.html http://www.biogeosciences.net/6/585/2009/bg-6-585-2009.pdf 585 599 2009-04-16 An empirical model simulating diurnal and seasonal CO₂ flux for diverse vegetation types and climate conditions M. Saito saito.makoto@nies.go.jp S. Maksyutov R. Hirata A. D. Richardson Center for Global Environmental Research, National Institute for Environmental Studies, Tsukuba 305-8506, Japan National Institute for Agro-Environmental Sciences, Tsukuba 305-8604, Japan Complex Systems Research Center, University of New Hampshire, Durham, NH 03824, USA We present an empirical model for the estimation of diurnal variability in net ecosystem CO₂ exchange (NEE) in various biomes. The model is based on the use of a simple saturated function for photosynthetic response of the canopy, and was constructed using the AmeriFlux network dataset that contains continuous eddy covariance CO₂ flux data obtained at 24 ecosystems sites from seven biomes. The physiological parameters of maximum CO₂ uptake rate by the canopy and ecosystem respiration have biome-specific responses to environmental variables. The model uses simplified empirical expression of seasonal variability in biome-specific physiological parameters based on air temperature, vapor pressure deficit, and annual precipitation. The model was validated using measurements of NEE derived from 10 AmeriFlux and four AsiaFlux ecosystem sites. The predicted NEE had reasonable magnitude and seasonal variation and gave adequate timing for the beginning and end of the growing season; the model explained 83–95% and 76–89% of the observed diurnal variations in NEE for the AmeriFlux and AsiaFlux ecosystem sites used for validation, respectively. The model however worked less satisfactorily in two deciduous broadleaf forests, a grassland, a savanna, and a tundra ecosystem sites where leaf area index changed rapidly. These results suggest that including additional plant physiological parameters may improve the model simulation performance in various areas of biomes. Baldocchi, D D.: "Breathing" of the terrestrial biosphere: lessons learned from a global network of carbon dioxide flux measurement systems, Aust. J. Bot., 56, 1–26, 2008. Bonan, G B.: A land surface model (LSM version 1.0) for ecological, hydrological, and atmospheric studies: Technical description and user's guide, NCAR Tech. Note NCAR/TN-417+STR, 1996. Bonan, G B.: The land surface climatology of the NCAR Land Surface Model coupled to the NCAR Community Climate Model, J. Climate, 11, 1307–1326, 1998. Burba, G G., McDermitt, D K., Grelle, A., Anderson, D J., and Xu, L.: Addressing the influence of instrument surface heat exchange on the measurements of CO₂ flux from open-path gas analyzers, Glob. Change Biol., 14, 1854–1876, 2008. Cao, G., Tang, Y., Mo, W., Wang, Y., Li, Y., and Zhao, X.: Grazing intensity alters soil respiration in an alpine meadow on the Tibetan plateau, Soil Biol. Biochem., 36, 237–243, 2004. Curiel Yuste, J., Janssens, I A., Carrara, A., and Ceulemans, R.: Annual Q$_10$ of soil respiration reflects plant phenological patterns as well as temperature sensitivity, Glob. Change Biol., 10, 161–169, 2004. Dore, S., Hymus, G J., Johnson, D P., Hinkle, C R., Valentini, R., and Drake, B G.: Cross validation of open-top chamber and eddy covariance measurements of ecosystem CO₂ exchange in a Florida scrub-oak ecosystem, Glob. Change Biol., 9, 84–95, 2003. Ehleringer, J. and Björkman, O.: Quantum yield for CO₂ uptake in C₃ and C₄ plants, Plant Physiol., 59, 86–90, 1977. Ehleringer, J. and Pearcy, R W.: Variation in quantum yield for CO₂ uptake among C₃ and C₄ plants, Plant Physiol., 73, 555–559, 1983. Epstein, H E., Calef, M P., Walker, M D., Chapin, F S., and Starfield, A M.: Detecting changes in arctic tundra plant communities in response to warming over decadal time scales, Glob. Change Biol., 10, 1325–1334, 2004. Eugster, W., Rouse, W R., Pielke, R A., McFadden, J P., Baldocchi, D D., Kittel, T. G F., Chapin, F S., Liston, G E., Vidale, P L., Vaganov, E., and Chambers, S.: Land-atmosphere energy exchange in Arctic tundra and boreal forest: available data and feedbacks to climate, Glob. Change Biol., 6, 84–115, 2000. Falge, E., Baldocchi, D., Olson, R., Anthoni, P., Aubinet, M., Bernhofer, C., Burba, G., Ceulemans, R., Clement, R., Dolman, H., Granier, A., Gross, P., Grünwald, T., Hollinger, D., Jensen, N O., Katul, G., Keronen, P., Kowalski, A., Lai, C T., Law, B E., Meyers, T., Moncrieff, J., Moors, E., Munger, J W., Pilegaard, K., Rannik, Ü., Rebmann, C., Suyker, A., Tenhunen, J., Tu, K., Verma, S., Vesala, T., Wilson, K., and Wofsy, S.: Gap filling strategies for defensible annual sums of net ecosystem exchange, Agric. Forest Meteorol., 107, 43–69, 2001. Falge, E., Baldocchi, D., Tenhunen, J., Aubinet, M., Bakwin, P., Berbigier, P., Bernhofer, C., Burba, G., Clement, R., Davis, K J., Elbers, J A., Goldstein, A H., Grelle, A., Granier, A., Gu$\eth$mundsson, J., Hollinger, D., Kowalski, A S., Katul, G., Law, B E., Malhi, Y., Meyers, T., Monson, R K., Munger, J W., Oechel, W., Paw U, K T., Pilegaard, K., Rannik, Ü., Rebmann, C., Suyker, A., Valentini, R., Wilson, K., and Wofsy, S.: Seasonality of ecosystem respiration and gross primary production as derived from FLUXNET measurements, Agric. Forest Meteorol., 113, 53–74, 2002. Farquhar, G D., von Caemmerer, S., and Berry, J A.: A biochemical model of photosynthetic CO₂ assimilation in leaves of C₃ species, Planta, 149, 78–90, 1980. Fukushima, Y.: Perspective of AsiaFlux, AsiaFlux Newsletter, 2, 1–2, 2002. Fung, I Y., Tucker, C J., and Prentice, K C.: Application of Advanced Very High Resolution Radiometer vegetation index to study atmosphere-biosphere exchange of CO₂, J. Geophys. Res., 92, 2999–3015, 1987. Gamo, M. and Panuthai, S.: Carbon flux observation in the tropical seasonal evergreen forest in Sakaerat, Thailand, AsiaFlux Newsletter, 14, 4–6, 2005. Gholz, H L. and Clark, K L.: Energy exchange across a chronosequence of slash pine forests in Florida, Agric. Forest Meteorol., 112, 87–102, 2002. Gilmanov, T G., Verma, S B., Sims, P L., Meyers, T P., Bradford, J A., Burba, G G., and Suyker, A E.: Gross primary production and light response parameters of four Southern Plains ecosystems estimated using long-term CO₂-flux tower measurements, Global Biogeochem. Cy., 17, 1071, \doi10.1029/2002GB002023, 2003. Gilmanov, T G., Tieszen, L L., Wylie, B K., Flanagan, L B., Frank, A B., Haferkamp, M R., Meyers, T P., and Morgan, J A.: Integration of CO₂ flux and remotely-sensed data for primary production and ecosystem respiration analyses in the Northern Great Plains: potential for quantitative spatial extrapolation, Global Ecol. Biogeogr, 14, 271–292, 2005. Gilmanov, T G., Soussana, J F., Aires, L., Ammann, C., Balzarola, M., Barcza, Z., Bernhofer, C., Campbell, C L., Cernusca, A., Cescatti, A., Clifton-Brown, J., Dirks, B. O M., Dore, S., Eugster, W., Fuhrer, J., Gimeno, C., Gruenwald, T., Haszpra, L., Hensen, A., Ibrom, A., Jacobs, A. F G., Jones, M B., Lanigan, G., Laurila, T., Lohila, A., Manca, G., Marcolla, B., Nagy, Z., Pilegaard, K., Pinter, K., Pio, C., Raschi, A., Rogiers, N., Sanz, M J., Stefani, P., Sutton, M., Tuba, Z., Valentini, R., and Williams, M L.: Partitioning European grassland net ecosystem CO₂ exchange into gross primary productivity and ecosystem respiration using light response function analysis, Agr. Ecosyst. Environ., 121, 93–120, 2007. Goulden, M L., Munger, J W., Fan, S M., Daube, B C., and Wofsy, S C.: Measurements of carbon sequestration by long-term eddy covariance: methods and a critical evaluation of accuracy, Glob. Change Biol., 2, 169–182, 1996. Gu, L., Meyers, T., Pallardy, S G., Hanson, P J., Yang, B., Heuer, M., Hosman, K P., Riggs, J S., Sluss, D., and Wullschleger, S D.: Direct and indirect effects of atmospheric conditions and soil moisture on surface energy partitioning revealed by a prolonged drought at a temperate forest site, J. Geophys. Res., 111, D16102, \doi10.1029/2006JD007161, 2006. Harazono, Y., Mano, M., Miyata, A., Zulueta, R C., and Oechel, W C.: Inter-annual carbon dioxide uptake of a wet sedge tundra ecosystem in the Arctic, Tellus~B, 55, 215–231, 2003. Hargrove, W W., Hoffman, F M., and Law, B E.: New analysis reveals representativeness of AmeriFlux network, Eos Trans. AGU, 84(48), 529~pp., 2003. Hirata, R., Saigusa, N., Yamamoto, S., Ohtani, Y., Ide, R., Asanuma, J., Gamo, M., Hirano, T., Kondo, H., Kosugi, Y., Li, S., Nakai, Y., Takagi, K., Tani, M., and Wang, H.: Spatial distribution of carbon balance in forest ecosystems across East Asia, Agric. Forest Meteorol., 148, 761–775, 2008. Hollinger, D Y., Aber, J., Dail, B., Davidson, E A., Goltz, S M., Hughes, H., Leclerc, M., Lee, J T., Richrdson, A D., Rodrigues, C., Scott, N A., Varier, D., and Walsh, J.: Spatial and temporal variability in forest-atmospheric CO₂ exchange, Glob. Change Biol., 10, 1689–1706, 2004. Huete, A R., Restrepo-Coupe, N., Ratana, P., Didan, K., Saleska, S R., Ichii, K., Panuthai, S., and Gamo, M.: Multiple site tower flux and remote sensing comparisons of tropical forest dynamics in Monsoon Asia, Agric. Forest Meteorol., 148, 748–760, 2008. Jenkins, J P., Richardson, A D., Braswell, B H., Ollinger, S V., Hollinger, D Y., and Smith, M L.: Refining light-use efficiency calculations for a deciduous forest canopy using simultaneous tower-based carbon flux and radiometric measurements, Agric. Forest Meteorol., 143, 64–79, 2007. Johnson, I R. and Thornley, J. H M.: A model of instantaneous and daily canopy photosynthesis, J. Theor. Biol., 107, 531–545, 1984. Katul, G., Leuning, R., and Oren, R.: Relationship between plant hydraulic and biochemical properties derived from a steady-state coupled water and carbon transport model, Plant Cell Environ., 26, 339–350, 2003. Katul, G G., Hsieh, C., Bowling, D., Clark, K., Shurpali, N., Turnipseed, A., Albertson, J., Tu, K., Hollinger, D., Evans, B., Offerle, B., Anderson, D., Ellsworth, D., Vogel, C., and Oren, R.: Spatial variability of turbulent fluxes in the roughness sublayer of an even-aged pine forest, Bound.-Lay. Meteorol., 93, 1–28, 1999. Kosugi, Y., Tanaka, H., Takanashi, S., Matsuno, N., Ohta, N., Shibata, S., and Tani, M.: Three years of carbon and energy fluxes from Japanese evergreen broad-leaved forest, Agric. Forest Meteorol., 132, 329–343, 2005. LeMone, M A., Grossman, R L., McMillen, R T., Liou, K N., Ou, S C., McKeen, S., Angevine, W., Ikeda, K., and Chen, F.: Cases-97: Late-morning warming and moistening of the convective boundary layer over the Walnut River Watershed, Bound.-Lay. Meteorol., 104, 1–52, 2002. Leuning, R., Cleugh, H A., Zegelin, S J., and Hughes, D.: Carbon and water fluxes over a temperate \it Eucalyptus forest and a tropical wet/dry savanna in Australia: measurements and comparison with MODIS remote sensing estimates, Agric. Forest Meteorol., 129, 151–173, 2005. Lieth, H.: Modeling the primary productivity of the world, in: Primary Productivity of the Biosphere, edited by: Lieth, H. and Whittaker, R H., Springer-Verlag, 237–263, 1975. Ma, S., Baldocchi, D D., Xu, L., and Hehn, T.: Inter-annual variability in carbon dioxide exchange of an oak/grass savanna and open grassland in California, Agric. Forest Meteorol., 147, 157–171, 2007. Martens, C S., Shay, T J., Mendlovitz, H P., Matross, D M., Saleska, S R., Wofsy, S C., Woodward, W S., Menton, M C., De Moura, J. M S., Crill, P M., De Moraes, O. L L., and Lima, R L.: Radon fluxes in tropical forest ecosystems of Brazilian Amazonia: night-time CO₂ net ecosystem exchange derived from radon and eddy covariance methods, Glob. Change Biol., 10, 618–629, 2004. McMillan, A. M S., Winston, G C., and Goulden, M L.: Age-dependent response of boreal forest to temperature and rainfall variability, Glob. Change Biol., 14, 1904–1916, 2008. Monteith, J L.: Solar radiation and productivity in tropical ecosystems, J. Appl. Ecol., 9, 747–766, 1972. Nemry, B., Francois, L., Gérard, J C., Bondeau, A., Heimann, M., and the participants of the Potsdam NPP Model Intercomparison: Comparing global models of terrestrial net primary productivity (NPP): analysis of the seasonal atmospheric CO₂ signal, Glob. Change Biol., 5, 65–76, 1999. Ohtani, Y., Mizoguchi, Y., Watanabe, T., and Yasuda, Y.: Parameterization of NEP for gap-filling in a cool-temperate coniferous forest in Fujiyoshida, Japan, Journal of Agricultural Meteorology, 60(5), 769–772, 2005. Owen, K E., Tenhunen, J., Reichstein, M., Wang, Q., Falge, E., Geyer, R., Xiao, X., Stoy, P., Ammann, C., Arain, A., Aubinet, M., Bernhofer, C., Chojnicki, B H., Granier, A., Gruenwald, T., Hadley, J., Heinesch, B., Hollinger, D., Knohl, A., Kutsch, W., Lohila, A., Meyers, T., Moors, E., Moureau, C., Pilegaard, K., Saigusa, N., Verma, S., Vesala, T., and Vogel, C.: Linking flux network measurements to continental scale simulations: ecosystem carbon dioxide exchange capacity under non-water-stressed conditions, Glob. Change Biol., 13, 734–760, 2007. Peat, W E.: Relationships between photosynthesis and light intensity in the tomato, Ann. Bot.-London, 34, 319–328, 1970. Potter, C S., Randerson, J T., Field, C B., Matson, P A., Vitousek, P M., Moonet, H A., and Klooster, S A.: Terrestrial ecosystem production: a process model based on global satellite and surface data, Global Biogeochem. Cy., 7, 811–841, 1993. Rabinowitch, E I.: Photosynthesis and Related Processes, Interscience Publishers, 1951. Randerson, J T., Thompson, M V., Conway, T J., Fung, I Y., and Field, C B.: The contribution of terrestrial sources and sinks to trends in the seasonal cycle of atmospheric carbon dioxide, Global Biogeochem. Cy., 11, 535–560, 1997. Reichstein, M., Falge, E., Baldocchi, D., Papale, D., Aubinet, M., Berbigier, P., Bernhofer, C., Buchmann, N., Gilmanov, T., Granier, A., Grünwald, T., Havránková, K., Ilvesniemi, H., Janous, D., Knohl, A., Laurila, T., Lohila, A., Loustau, D., Matteucci, G., Meyers, T., Miglietta, F., Ourcival, J M., Pumpanen, J., Rambal, S., Rotenberg, E., Sanz, M., Tenhunen, J., Seufert, G., Vaccari, F., Vesala, T., Yakir, D., and Valentini, R.: On the separation of net ecosystem exchange into assimilation and ecosystem respiration: review and improved algorithm, Glob. Change Biol., 11, 1424–1439, 2005. Ruimy, A., Dedieu, G., and Saugier, B.: TURC: a diagnostic model of continental gross primary productivity and net primary productivity, Global Biogeochem. Cy., 10, 269–285, 1996. Saigusa, N., Yamamoto, S., Hirata, R., Ohtani, Y., Ide, R., Asanuma, J., Gamo, M., Hirano, T., Kondo, H., Kosugi, Y., Li, S., Nakai, Y., Takagi, K., Tani, M., and Wang, H.: Temporal and spatial variations in the seasonal patterns of CO₂ flux in boreal, temperate, and tropical forests in East Asia, Agric. Forest Meteorol., 148, 700–713, 2008. Sampson, D A., Janssens, I A., Curiel Yuste , J., and Ceulemans, R.: Basal rates of soil respiration are correlated with photosynthesis in a mixed temperate forest, Glob. Change Biol., 13, 2008–2017, 2007. Schwarz, P A., Law, B E., Williams, M., Irvine, J., Kurpius, M., and Moore, D.: Climatic versus biotic constraints on carbon and water fluxes in seasonally drought-affected ponderosa pine ecosystems, Global Biogeochem. Cy., 18, GB4007, \doi10.1029/2004GB002234, 2004. Scott, R L., Jenerette, G D., Potts, D L., and Huxman, T E.: The effect of drought on the water and carbon dioxide exchange of a woody-plant-encroached semiarid grassland, Agric. Forest Meteorol., in review, 2008. Sellers, P J., Mintz, Y., Sub, Y C., and Dalcher, A.: A simple biosphere model (SiB) for use within general circulation models, J. Atmos. Sci., 43, 305–331, 1986. Suyker, A E. and Verma, S B.: Year-round observations of the net ecosystem exchange of carbon dioxide in a native tallgrass prairie, Glob. Change Biol., 7, 279–289, 2001. Takagi, K., Nomura, M., Ashiya, D., Takahashi, H., Sasa, K., Fujinuma, Y., Shibata, H., Akibayashi, Y., and Koike, T.: Dynamic carbon dioxide exchange through snowpack by wind-driven mass transfer in a conifer-broadleaf mixed forest in northernmost Japan, Global Biogeochem. Cy., 19, GB2012, \doi10.1029/2004GB002272, 2005. Thornley, J. H. M.: Instantaneous Canopy Photosynthesis: Analytical Expressions for Sun and Shade Leaves Based on Exponential Light Decay Down the Canopy and an Acclimated Non-rectangular Hyperbola for Leaf Photosynthesis, Ann. Bot.-London, 81, 451–458, 2002. Tjoelker, M G., Oleksyn, J., and Reich, P B.: Modelling respiration of vegetation: evidence for a general temperature-dependent Q$_10$, Glob. Change Biol., 7, 223–230, 2001. Vickers, D. and Mahrt, L.: The cospectral gap and turbulent flux calculations, J. Atmos. Ocean Tech., 20, 660–672, 2003. Wang, C K., Bond-Lambery, B., and Gower, S T.: Carbon distribution of a well- and poorly-drained black spruce fire chronosequence, Glob. Change Biol., 9, 1066–1079, 2003. Xu, L. and Baldocchi, D D.: Seasonal variation in carbon dioxide exchange over a Mediterranean annual grassland in California, Agric. Forest Meteorol., 123, 79–96, 2004. Yi, C X., Davis, K J., Berger, B W., and Bakwin, P S.: Long-term observations of the dynamics of the continental planetary boundary layer, J. Atmos. Sci., 58, 1288–1299, 2001. Yuan, W., Liu, S., Zhou, G., Zhou, G., Tieszen, L L., Baldocchi, D., Bernhofer, C., Gholz, H., Goldstein, A H., Goulden, M L., Hollinger, D Y., Hu, Y., Law, B E., Stoy, P C., Vesala, T., and Wofsy, S C.: Deriving a light use efficiency model from eddy covariance flux data for predicting daily gross primary production across biomes, Agric. Forest Meteorol., 143, 189–207, 2007.