Journal Article 250 Soil 107 grassland 91 Research Support, Non-U.S. Gov't 86 N762921K75 45 Nitrogen 45 grasslands 44 mehr ... 7440-44-0 42 Carbon 42 climate change 37 142M471B3J 31 Carbon Dioxide 31 Research Support, U.S. Gov't, Non-P.H.S. 31 drought 17 059QF0KO0R 16 Water 16 27YLU75U4W 11 Phosphorus 11 biodiversity 11 Meta-Analysis 10 elevated CO2 10 nitrogen deposition 10 savanna 10 soil respiration 10 Fertilizers 9 Review 9 forest 9 global change 9 community composition 8 grazing 8 weniger ...