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Overestimated Terrestrial Carbon Uptake in the Future Owing to the Lack of Spatial Variations CO2 in an Earth System Model

文献类型：期刊论文

作者Peng, Jing1; Wang, Yongli1; Dan, Li1; Feng, Jinming1; Yang, Fuqiang1; Tang, Xiba2; Wu, Qizhong3; Tian, Jing4
刊名EARTHS FUTURE
出版日期2022-04-01
卷号10期号:4页码:18
DOI10.1029/2021EF002440
通讯作者Peng, Jing(pengjing@tea.ac.cn)
英文摘要Atmospheric carbon dioxide (CO2) would be increasing much more if it were not for terrestrial carbon (C) uptake, fueling the drawdown of atmospheric CO2 in vegetation and soil on decadal to centennial time scales. Here, we used a global Earth system model (BNU-ESM) with two different CO2 data sets (i.e., uniform CO2 vs. non-uniform CO2 data sets) to simulate the responses of the C balance, particularly to the non-uniform CO2 effect. Under future conditions of 2071-2100, accounting for spatial variations of CO2 concentrations resulted in 0.51 Pg C yr(-1) or 19% additional global net ecosystem production (NEP) inductions relative to the uniform conditions. The reduction in NEP in the future was mostly caused by the reduction in the Northern Hemisphere, within which summer was the season that accounted for the largest fraction of this reduction. Changes in NEP under future conditions differed largely to those under present conditions, resulting from changes in the circulation caused by the non-uniform CO2-for example, reductions in evapotranspiration limit water vapor contributions to the lower atmosphere, and substantially diminish convective precipitation, which led to decreased precipitation. Our findings call for more attention to be paid to the influence of spatial variations in CO2 concentration-particularly in the Northern Hemisphere-to better constrain the projected C uptake under future conditions. Also, it highlights the fundamental importance of non-uniform CO2 in determining the pattern, response, and magnitude of C uptake through to 2100.
WOS关键词CLIMATE-CHANGE ; CYCLE ; VARIABILITY ; PRODUCTIVITY ; SEASONALITY ; SENSITIVITY ; MOISTURE ; TRENDS ; GROWTH ; BUDGET
资助项目National Natural Science Foundation of China[42141017] ; National Natural Science Foundation of China[41975112] ; National Natural Science Foundation of China[42175142] ; National Natural Science Foundation of China[42175013] ; National Natural Science Foundation of China[41965010] ; National Key Research and Development Program of China[2016YFA0602501] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA20020201]
WOS研究方向Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000783751200001
资助机构National Natural Science Foundation of China ; National Key Research and Development Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences
源URL[http://ir.igsnrr.ac.cn/handle/311030/174988]  
专题中国科学院地理科学与资源研究所
通讯作者Peng, Jing
作者单位1.Chinese Acad Sci, Inst Atmospher Phys, CAS Key Lab Reg Climate Environm Temperate East A, Beijing, Peoples R China
2.Inst Atmospher Phys, Lab Cloud Precipitat Phys & Severe Storms, Beijing, Peoples R China
3.Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Peng, Jing,Wang, Yongli,Dan, Li,et al. Overestimated Terrestrial Carbon Uptake in the Future Owing to the Lack of Spatial Variations CO2 in an Earth System Model[J]. EARTHS FUTURE,2022,10(4):18.
APA Peng, Jing.,Wang, Yongli.,Dan, Li.,Feng, Jinming.,Yang, Fuqiang.,...&Tian, Jing.(2022).Overestimated Terrestrial Carbon Uptake in the Future Owing to the Lack of Spatial Variations CO2 in an Earth System Model.EARTHS FUTURE,10(4),18.
MLA Peng, Jing,et al."Overestimated Terrestrial Carbon Uptake in the Future Owing to the Lack of Spatial Variations CO2 in an Earth System Model".EARTHS FUTURE 10.4(2022):18.

入库方式： OAI收割

来源：地理科学与资源研究所

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