TY - JOUR A1 - Liang, J. A1 - Qi, X. A1 - Souza, L. A1 - Luo, Y. T1 - Processes regulating progressive nitrogen limitation under elevated carbon dioxide: a meta-analysis JO - Biogeosciences J1 - BG VL - 13 IS - 9 SP - 2689 EP - 2699 Y1 - 2016/05/10 PB - Copernicus Publications SN - 1726-4189 UR - https://bg.copernicus.org/articles/13/2689/2016/ L1 - https://bg.copernicus.org/articles/13/2689/2016/bg-13-2689-2016.pdf DO - 10.5194/bg-13-2689-2016 ER -