Limitations of nitrogen and phosphorous on the terrestrial carbon uptake in the 20th century

被引:65
作者
Zhang, Q. [1 ,2 ]
Wang, Y. P. [2 ]
Pitman, A. J. [3 ]
Dai, Y. J. [1 ]
机构
[1] Beijing Normal Univ, Sch Geog, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China
[2] CSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Aspendale, Vic 3195, Australia
[3] Univ New S Wales, ARC Ctr Excellence Climate Syst Sci, Sydney, NSW 2052, Australia
关键词
MODEL; PHOTOSYNTHESIS; RESPONSES; CLIMATE;
D O I
10.1029/2011GL049244
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
A climate model, coupled to a sophisticated land model, is used to explore the impact of nitrogen and phosphorous limitations on carbon uptake under increasing atmospheric carbon dioxide concentration, or [CO2], from 1870 to 2009. Adding nitrogen limitation strongly reduces the capacity of land CO2 uptake under increasing [CO2]. The further limitation by phosphorous has a smaller impact on the global uptake of CO2. However, phosphorous limitation has a strong impact on regional carbon uptake: increasing CO2 sinks over North America and Eurasia and decreasing sinks over China and Australia. Thus, while the global carbon balance can be resolved with just nitrogen limitation, simulations of continental-scale carbon sinks will need to include the additional limitation of phosphorous through the 20th century. Citation: Zhang, Q., Y. P. Wang, A. J. Pitman, and Y. J. Dai ( 2011), Limitations of nitrogen and phosphorous on the terrestrial carbon uptake in the 20th century, Geophys. Res. Lett., 38, L22701, doi:10.1029/2011GL049244.
引用
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页数:5
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