Asymmetric Diurnal and Monthly Responses of Ecosystem Carbon Fluxes to Experimental Warming

doi:10.1002/clen.201600557

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 粉尘与环境研究室

	Asymmetric Diurnal and Monthly Responses of Ecosystem Carbon Fluxes to Experimental Warming
	Chen, Ji 8,9,10,11; Wang, Ping 13; Xiao, Shun 10,11,14; Wang, Junfeng 1; Wei, Yonglin 2; Guo, Liang 12; Shelton, Shelby 3; Liu, Min 9; Liu, Chen 9; Zhang, Baocheng 3
刊名	CLEAN-SOIL AIR WATER
	2017-03-01
卷号	45 期号:3
关键词	Ecosystem Respiration Gross Primary Productivity Net Ecosystem Exchange Temperature Sensitivity
DOI	10.1002/clen.201600557
文献子类	Article
英文摘要	Quantifying the diurnal and monthly responses of ecosystem carbon (C) fluxes is critical to accurately understand the feedback between global climate change and ecosystem C dynamics. However, the diurnal and monthly responses of ecosystem C fluxes to climate warming remain unclear. In this study, a field simulated warming experiment was conducted by using open top chambers to explore the diurnal and monthly responses of ecosystem C fluxes during one growing season (GS) in a Tibetan Plateau grassland. The results showed that ecosystem C fluxes responded unevenly to the simulated warming during one GS. Warming significantly increased C uptake (gross primary production) and sequestration (net ecosystem exchange) during the start (May to June) and peak (July to August) of the GS, but promoted ecosystem respiration (ER) during the peak and end (September to October) of the GS. Warming also had more pronounced positive effects on ER during night than during day. In addition, although warming significantly decreased the temperature sensitivity (Q(10)) of ER over the whole GS, Q(10) also responded positively to warming during the start and end of GS as well as during the night. These results highlight the hypothesis that asymmetrical responses of the diurnal and monthly variations of ecosystem C fluxes and Q(10) should be taken into consideration to project the C-climate feedback, especially under future non-uniform warming scenarios.
WOS关键词	QINGHAI-TIBET PLATEAU ; OPEN-TOP CHAMBERS ; SOIL ORGANIC-CARBON ; CLIMATE-CHANGE ; TEMPERATE STEPPE ; MEADOW GRASSLAND ; TERRESTRIAL ECOSYSTEMS ; THERMAL-ACCLIMATION ; COMMUNITY STRUCTURE ; PLANT BIOMASS
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
语种	英语
WOS记录号	WOS:000398063400010
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5499]
专题	地球环境研究所_粉尘与环境研究室
作者单位	1.Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou, Peoples R China 2.China Meteorol Adm, Haibei Grassland Ecol Monitoring Stn, Haibei, Peoples R China 3.George Washington Univ, Milken Inst Publ Hlth, Washington, DC USA 4.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian, Peoples R China 5.Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA 6.East China Normal Univ, Ctr Global Change & Ecol Forecasting, Shanghai, Peoples R China 7.East China Normal Univ, Tiantong Natl Field Observat Stn Forest Ecosyst, Sch Ecol & Environm Sci, Shanghai, Peoples R China 8.Univ Chinese Acad Sci, Beijing, Peoples R China 9.Northwestern Polytech Univ, Ctr Ecol & Environm Sci, Xian 710072, Peoples R China 10.Chinese Acad Sci, Key Lab Aerosol Chem & Phys, Inst Earth Environm, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Chen, Ji,Wang, Ping,Xiao, Shun,et al. Asymmetric Diurnal and Monthly Responses of Ecosystem Carbon Fluxes to Experimental Warming[J]. CLEAN-SOIL AIR WATER,2017,45(3).
APA	Chen, Ji.,Wang, Ping.,Xiao, Shun.,Wang, Junfeng.,Wei, Yonglin.,...&Zhou, Xuhui.(2017).Asymmetric Diurnal and Monthly Responses of Ecosystem Carbon Fluxes to Experimental Warming.CLEAN-SOIL AIR WATER,45(3).
MLA	Chen, Ji,et al."Asymmetric Diurnal and Monthly Responses of Ecosystem Carbon Fluxes to Experimental Warming".CLEAN-SOIL AIR WATER 45.3(2017).