The temperature sensitivity of ecosystem respiration to climate change in an alpine meadow on the Tibet plateau: A reciprocal translocation experiment

doi:10.1016/j.agrformet.2015.10.002

NWIPB OpenIR

	The temperature sensitivity of ecosystem respiration to climate change in an alpine meadow on the Tibet plateau: A reciprocal translocation experiment
	Hu, Yigang 1,2; Jiang, Lili 1; Wang, Shiping 1,4; Zhang, Zhenhua 3; Luo, Caiyun 3; Bao, Xiaoying 7; Niu, Haishan 7; Xu, Guangping 5; Duan, Jichuang 6; Zhu, Xiaoxue 3; Cui, Shujuan 1,7; Du, Mingyuan 8
	2016-01-15
发表期刊	AGRICULTURAL AND FOREST METEOROLOGY
卷号	216 页码:93-104
文章类型	Article
摘要	Information about the potential effects of climate change, especially cooling, on ecosystem respiration (Re) in alpine meadows is scarce. We determined the effects of warming and cooling on Re on the Tibetan Plateau using a 2-year reciprocal translocation experiment with 4 different vegetation types (3 alpine meadows and 1 alpine shrub differentiated by plant community composition) along an elevation gradient from 3200 to 3800 m (with vegetation types E2, E4, E6 and E8 at 3200, 3600, 3800 and 3800 m, respectively) during the growing seasons in 2008 and 2009. Mean growing seasonal Re decreased by 13.6, 30.3 and 40.7% per 200m rise in elevation (cooling) for vegetation types E2, E4 and E6, but increased by 1.3, 35.9 and 58.8% per 200 m decrease in elevation (warming) for vegetation types E4, E6 and E8, respectively. Soil temperature explained 49.3-64.0% of daily Re variation and aboveground biomass explained 21.5-61.6% of average Re variation of the growing season for all vegetation types, but the effect of soil moisture on Re was small over 2-year. The values of Re temperature sensitivity increased with an increase in elevation for both warming (3.3, 24.3 and 53.5%degrees C-1 for vegetation types E4, E6 and E8) and cooling (8.0, 19.1 and 24.4%degrees C-1 for vegetation types E2, E4 and E6), suggesting that alpine meadow at higher elevation was more sensitive to both warming and cooling. Based on the values of Re temperature sensitivity for all pooled vegetation types (25.4, 5.6 and 19.6%degrees C-1 for warming, cooling and pooled warming and cooling), it could be over-estimated by 23% for warming alone compared with pooled warming and cooling. Therefore, asymmetrical responses of Re to warming and cooling should be taken into account when we evaluate the effect of temperature change on Re using models in the future. (C) 2015 Elsevier B.V. All rights reserved.
关键词	Temperature Change Warming And Cooling Asymmetrical Response Ecosystem Respiration Alpine Meadows Tibetan Plateau
WOS标题词	Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI	10.1016/j.agrformet.2015.10.002
关键词[WOS]	SOIL MICROBIAL RESPIRATION ; CARBON-DIOXIDE EXCHANGE ; LITTER MASS-LOSS ; PLANT BIOMASS ; CO2 EXCHANGE ; SUBSTRATE AVAILABILITY ; SPECIES COMPOSITION ; SEASONAL-VARIATION ; NITROGEN ADDITION ; ORGANIC-MATTER
收录类别	SCI
语种	英语
项目资助者	National Basic Research Program(2013CB956000) ; Natural Science Foundation Committee of China(41230750 ; Chinese Academy of Sciences(XDB03030403) ; 41101081)
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000367491300009
引用统计	被引频次：51[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/6507
专题	中国科学院西北高原生物研究所
作者单位	1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 101001, Peoples R China 2.Chinese Acad Sci, Cold & Arid Reg & Environm & Engn Res Inst, Shapotou Desert Expt & Res Stn, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China 4.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 5.Chinese Acad Sci, Guangxi Inst Bot, Guilin 541006, Peoples R China 6.Binhai Res Inst Tianjin, Tianjin 300457, Peoples R China 7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 8.Natl Inst Agroenvironm Sci, Tsukuba, Ibaraki 3058604, Japan
推荐引用方式 GB/T 7714	Hu, Yigang,Jiang, Lili,Wang, Shiping,et al. The temperature sensitivity of ecosystem respiration to climate change in an alpine meadow on the Tibet plateau: A reciprocal translocation experiment[J]. AGRICULTURAL AND FOREST METEOROLOGY,2016,216:93-104.
APA	Hu, Yigang.,Jiang, Lili.,Wang, Shiping.,Zhang, Zhenhua.,Luo, Caiyun.,...&Du, Mingyuan.(2016).The temperature sensitivity of ecosystem respiration to climate change in an alpine meadow on the Tibet plateau: A reciprocal translocation experiment.AGRICULTURAL AND FOREST METEOROLOGY,216,93-104.
MLA	Hu, Yigang,et al."The temperature sensitivity of ecosystem respiration to climate change in an alpine meadow on the Tibet plateau: A reciprocal translocation experiment".AGRICULTURAL AND FOREST METEOROLOGY 216(2016):93-104.