TY - JOUR A1 - Zhang, W. S. A1 - Swaney, D. P. A1 - Li, X. Y. A1 - Hong, B. A1 - Howarth, R. W. A1 - Ding, S. H. T1 - Anthropogenic point-source and non-point-source nitrogen inputs into Huai River basin and their impacts on riverine ammonia–nitrogen flux JO - Biogeosciences J1 - BG VL - 12 IS - 14 SP - 4275 EP - 4289 Y1 - 2015/07/22 PB - Copernicus Publications SN - 1726-4189 UR - https://bg.copernicus.org/articles/12/4275/2015/ L1 - https://bg.copernicus.org/articles/12/4275/2015/bg-12-4275-2015.pdf DO - 10.5194/bg-12-4275-2015 ER -