Impacts of 1.5 degrees C and 2 degrees C Global Warming on Net Primary Productivity and Carbon Balance in China's Terrestrial Ecosystems

doi:10.3390/su12072849

	Impacts of 1.5 degrees C and 2 degrees C Global Warming on Net Primary Productivity and Carbon Balance in China's Terrestrial Ecosystems
	Yu, Li 2; Gu, Fengxue 1; Huang, Mei 4; Tao, Bo 3; Hao, Man 4; Wang, Zhaosheng 4
刊名	SUSTAINABILITY
	2020-04-01
卷号	12 期号:7 页码:17
关键词	1.5 degrees C and 2 degrees C global warming climate risks earth system models of CIMP5 process-based ecosystem model China
DOI	10.3390/su12072849
通讯作者	Huang, Mei(huangm@igsnrr.ac.cn)
英文摘要	Assessing potential impacts of 1.5 degrees C and 2 degrees C global warming and identifying the risks of further 0.5 degrees C warming are crucial for climate adaptation and disaster risk management. Four earth system models in the Coupled Model Intercomparison Project Phase 5 (CMIP5) and a process-based ecosystem model are used in this study to assess the impacts and potential risks of the two warming targets on the carbon cycle of China's terrestrial ecosystems. Results show that warming generally stimulates the increase of net primary productivity (NPP) and net ecosystem productivity (NEP) under both representative concentration pathway (RCP) 4.5 and RCP8.5 scenarios. The projected increments of NPP are higher at 2 degrees C warming than that at 1.5 degrees C warming for both RCP4.5 and RCP8.5 scenarios; approximately 13% and 19% under RCP4.5, and 12.5% and 20% under RCP8.5 at 1.5 degrees C and 2 degrees C warming, respectively. However, the increasing rate of NPP was projected to decline at 2 degrees C warming under the RCP4.5 scenario, and the further 0.5 degrees C temperature rising induces the decreased NPP linear slopes in more than 81% areas of China's ecosystems. The total NEP is projected to be increased by 53% at 1.5 degrees C, and by 81% at 2 degrees C warming. NEP was projected to increase approximately by 28% with the additional 0.5 degrees C warming. Furthermore, the increasing rate of NEP weakens at 2 degrees C warming, especially under the RCP8.5 scenario. In summary, China's total NPP and NEP were projected to increase under both 1.5 degrees C and 2 degrees C warming scenarios, although adverse effects (i.e., the drop of NPP growth and the reduction of carbon sequestration capacity) would occur in some regions such as northern China in the process of global warming.
资助项目	National Key R&D Program of China[2017YFC0503905] ; National Natural Science Foundation of China[41991285] ; Central Public-interest Scientific Institution Basal Research Fund[BSRF201708]
WOS关键词	EARTH SYSTEM MODEL ; LAND-COVER CHANGE ; CLIMATE-CHANGE ; FUTURE CLIMATE ; TEMPERATURE ; RESPONSES ; FOREST ; PRECIPITATION ; DYNAMICS ; CYCLE
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
语种	英语
出版者	MDPI
WOS记录号	WOS:000531558100274
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Central Public-interest Scientific Institution Basal Research Fund
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/159480]
专题	中国科学院地理科学与资源研究所
通讯作者	Huang, Mei
作者单位	1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Minist Agr, Key Lab Dryland Agr, Beijing 100081, Peoples R China 2.China Meteorol Adm, Natl Climate Ctr, Beijing 100081, Peoples R China 3.Univ Kentucky, Coll Agr Food & Environm, Dept Plant & Soil Sci, Lexington, KY 40546 USA 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Yu, Li,Gu, Fengxue,Huang, Mei,et al. Impacts of 1.5 degrees C and 2 degrees C Global Warming on Net Primary Productivity and Carbon Balance in China's Terrestrial Ecosystems[J]. SUSTAINABILITY,2020,12(7):17.
APA	Yu, Li,Gu, Fengxue,Huang, Mei,Tao, Bo,Hao, Man,&Wang, Zhaosheng.(2020).Impacts of 1.5 degrees C and 2 degrees C Global Warming on Net Primary Productivity and Carbon Balance in China's Terrestrial Ecosystems.SUSTAINABILITY,12(7),17.
MLA	Yu, Li,et al."Impacts of 1.5 degrees C and 2 degrees C Global Warming on Net Primary Productivity and Carbon Balance in China's Terrestrial Ecosystems".SUSTAINABILITY 12.7(2020):17.