Responses of gross primary productivity to different sizes of precipitation events in a temperate grassland ecosystem in Inner Mongolia, China

doi:10.1007/s40333-015-0136-7

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	Responses of gross primary productivity to different sizes of precipitation events in a temperate grassland ecosystem in Inner Mongolia, China
	Guo Qun ; Li Shenggong ; Hu Zhongmin ; Zhao Wei 3; Yu Guirui ; Sun Xiaomin ; Li Linghao 2; Liang Naishen 1; Bai Wenming 2
刊名	JOURNAL OF ARID LAND
	2016
卷号	8 期号:1 页码:36-46
关键词	precipitation event grassland gross primary productivity global climate change precipitation regime
ISSN号	1674-6767
DOI	10.1007/s40333-015-0136-7
文献子类	Article
英文摘要	Changes in the sizes of precipitation events in the context of global climate change may have profound impacts on ecosystem productivity in arid and semiarid grasslands. However, we still have little knowledge about to what extent grassland productivity will respond to an individual precipitation event. In this study, we quantified the duration, the maximum, and the time-integrated amount of the response of daily gross primary productivity (GPP) to an individual precipitation event and their variations with different sizes of precipitation events in a typical temperate steppe in Inner Mongolia, China. Results showed that the duration of GPP-response (tau(R)) and the maximum absolute GPP-response (GPP(max)) increased linearly with the sizes of precipitation events (P-es), driving a corresponding increase in time-integrated amount of the GPP-response (GPP(total)) because variations of GPPtotal were largely explained by tau (R) and GPP(max). The relative contributions of these two parameters to GPP(total) were strongly P-es-dependent. The GPP(max) contributed more to the variations of GPP(total) when P-es was relatively small (< 20 mm), whereas tau (R) was the main driver to the variations of GPP(total) when P-es was relatively large. In addition, a threshold size of at least 5 mm of precipitation was required to induce a GPP-response for the temperate steppe in this study. Our work has important implications for the modeling community to obtain an advanced understanding of productivity-response of grassland ecosystems to altered precipitation regimes.
学科主题	Environmental Sciences
电子版国际标准刊号	2194-7783
出版地	HEIDELBERG
WOS关键词	EXTREME PRECIPITATION ; USE EFFICIENCY ; RAINFALL VARIABILITY ; SEMIARID GRASSLAND ; SOIL RESPIRATION ; WATER PULSES ; PATTERNS ; DYNAMICS ; DEPENDENCE ; GRADIENT
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000365032100004
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31400425, 31570437, 41301043, 31420103917] ; National Key Project of Scientific and Technical Supporting Program [2013BAC03B03] ; Funding for Talented Young Scientists of IGSNRR [2013RC203] ; Social Foundation of Beijing Academy of Social Sciences [154005]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/25120]
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 4.Ctr Global Environm Res, Natl Inst Environm Studies, Global Carbon Cycle Res Sect, Tsukuba, Ibaraki 3058506, Japan
推荐引用方式 GB/T 7714	Guo Qun,Li Shenggong,Hu Zhongmin,et al. Responses of gross primary productivity to different sizes of precipitation events in a temperate grassland ecosystem in Inner Mongolia, China[J]. JOURNAL OF ARID LAND,2016,8(1):36-46.
APA	Guo Qun.,Li Shenggong.,Hu Zhongmin.,Zhao Wei.,Yu Guirui.,...&Bai Wenming.(2016).Responses of gross primary productivity to different sizes of precipitation events in a temperate grassland ecosystem in Inner Mongolia, China.JOURNAL OF ARID LAND,8(1),36-46.
MLA	Guo Qun,et al."Responses of gross primary productivity to different sizes of precipitation events in a temperate grassland ecosystem in Inner Mongolia, China".JOURNAL OF ARID LAND 8.1(2016):36-46.