Differential responses of ecosystem respiration components to experimental warming in a meadow grassland on the Tibetan Plateau

doi:10.1016/j.agrformet.2016.01.010

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

	Differential responses of ecosystem respiration components to experimental warming in a meadow grassland on the Tibetan Plateau
	Shi, Zheng 3; Chen, Ji 1,2; Cao, Junji 1,6; Luo, Yiqi 3,7; Zhou, Xuhui 5; Niu, Shuli 4; Jiang, Lifen 3; Xia, Jianyang 5
刊名	AGRICULTURAL AND FOREST METEOROLOGY
	2016-04-15
卷号	220 期号:2016 页码:21-29
关键词	Ecosystem Respiration Soil Respiration Total Autotrophic Respiration Heterotrophic Respiration Experimental Warming Tibetan Plateau
DOI	10.1016/j.agrformet.2016.01.010
文献子类	Article
英文摘要	Global warming is anticipated to have profound effects on terrestrial carbon fluxes and thus feed backs to future climate change. Ecosystem respiration (R-eco) is one of the dominant components of biosphere CO2 fluxes, but the effects of warming on Reco are still unclear. A field warming experiment using open top chambers (OTCs) was conducted in a meadow grassland on the Tibetan Plateau to study the effects of warming on the components of Reco. Warming significantly enhanced above-ground plant respiration (R-agb) and total autotrophic plant respiration (R-plant 1 by 28.7% and 19.9%, respectively, but reduced heterotrophic respiration (R-h) by 10.4%. These different responses resulted in the insensitive responses of Reco and soil respiration (R-s) to the experimental warming. The warming treatment also increased R-plant/R-eco and R-agb/R-eco. by 8.4% and 17.3%, respectively, while decreasing R-h/R-eco, by 19.0%, suggesting that warming could eventually cause R-eco to be dominated by R-plant. Enhancements in Roam and R-agb were related to the warming-induced increases in aboveground biomass (AGB) while reduced R-h was closely coupled with warming-induced decrease of microbial biomass carbon. Our results highlight that the differential responses of the components of R-eco to different environmental physics under warming scenarios should be taken into consideration to project the future carbon-climate feed backs. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词	CARBON-CYCLE FEEDBACK ; OPEN-TOP CHAMBERS ; SOIL CO2 EFFLUX ; AUTOTROPHIC RESPIRATION ; THERMAL-ACCLIMATION ; CLIMATE-CHANGE ; ALPINE MEADOW ; HETEROTROPHIC RESPIRATION ; TEMPERATURE SENSITIVITY ; MICROBIAL RESPIRATION
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
语种	英语
WOS记录号	WOS:000372385100003
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5810]
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, Inst Earth Environm, SKLLQG, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Oklahoma, Dept Microbiol & Plant Biol, Norman, OK 73019 USA 4.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Synth Res Ctr,Chinese Ecosyst Res Network, Beijing 100101, Peoples R China 5.E China Normal Univ, Sch Ecol & Environm Sci, Ctr Global Change & Ecol Forecasting, Shanghai 200241, Peoples R China 6.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China 7.Tsinghua Univ, Ctr Earth Syst Sci, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Shi, Zheng,Chen, Ji,Cao, Junji,et al. Differential responses of ecosystem respiration components to experimental warming in a meadow grassland on the Tibetan Plateau[J]. AGRICULTURAL AND FOREST METEOROLOGY,2016,220(2016):21-29.
APA	Shi, Zheng.,Chen, Ji.,Cao, Junji.,Luo, Yiqi.,Zhou, Xuhui.,...&Xia, Jianyang.(2016).Differential responses of ecosystem respiration components to experimental warming in a meadow grassland on the Tibetan Plateau.AGRICULTURAL AND FOREST METEOROLOGY,220(2016),21-29.
MLA	Shi, Zheng,et al."Differential responses of ecosystem respiration components to experimental warming in a meadow grassland on the Tibetan Plateau".AGRICULTURAL AND FOREST METEOROLOGY 220.2016(2016):21-29.