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Asymmetric Diurnal and Monthly Responses of Ecosystem Carbon Fluxes to Experimental Warming
Chen, Ji1,2,3,4; Zhou, Xuhui5,6; Hruska, Tracy7; Cao, Junji1,2,8; Zhang, Baocheng9; Liu, Chen3; Liu, Min3; Shelton, Shelby9; Guo, Liang10; Wei, Yonglin11; Wang, Junfeng12; Xiao, Shun1,2,13; Wang, Ping14
2017-03-01
发表期刊CLEAN-SOIL AIR WATER
卷号45期号:3
文章类型Article
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.
关键词Ecosystem Respiration Gross Primary Productivity Net Ecosystem Exchange Temperature Sensitivity
WOS标题词Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1002/clen.201600557
关键词[WOS]QINGHAI-TIBET PLATEAU ; OPEN-TOP CHAMBERS ; SOIL ORGANIC-CARBON ; CLIMATE-CHANGE ; TEMPERATE STEPPE ; MEADOW GRASSLAND ; TERRESTRIAL ECOSYSTEMS ; THERMAL-ACCLIMATION ; COMMUNITY STRUCTURE ; PLANT BIOMASS
收录类别SCI
语种英语
WOS研究方向Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
WOS类目Environmental Sciences ; Marine & Freshwater Biology ; Water Resources
WOS记录号WOS:000398063400010
引用统计
被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5499
专题粉尘与环境研究室
作者单位1.Chinese Acad Sci, SKLLQG, Inst Earth Environm, Xian 710061, Peoples R China
2.Chinese Acad Sci, Key Lab Aerosol Chem & Phys, Inst Earth Environm, Xian 710061, Peoples R China
3.Northwestern Polytech Univ, Ctr Ecol & Environm Sci, Xian 710072, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
5.East China Normal Univ, Tiantong Natl Field Observat Stn Forest Ecosyst, Sch Ecol & Environm Sci, Shanghai, Peoples R China
6.East China Normal Univ, Ctr Global Change & Ecol Forecasting, Shanghai, Peoples R China
7.Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA
8.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian, Peoples R China
9.George Washington Univ, Milken Inst Publ Hlth, Washington, DC USA
10.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Peoples R China
11.China Meteorol Adm, Haibei Grassland Ecol Monitoring Stn, Haibei, Peoples R China
12.Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou, Peoples R China
13.Shaanxi Normal Univ, Dept Environm Sci, Xian, Peoples R China
14.Hainan Trop Ocean Univ, Sanya, Peoples R China
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GB/T 7714
Chen, Ji,Zhou, Xuhui,Hruska, Tracy,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.,Zhou, Xuhui.,Hruska, Tracy.,Cao, Junji.,Zhang, Baocheng.,...&Wang, Ping.(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).
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