Ecosystem response more than climate variability drives the inter-annual variability of carbon fluxes in three Chinese grasslands

NWIPB OpenIR

	Ecosystem response more than climate variability drives the inter-annual variability of carbon fluxes in three Chinese grasslands
	Zhang, Tao ; Zhang, Yangjian ; Xu, Mingjie ; Xi, Yi ; Zhu, Juntao ; Zhang, Xianzhou ; Wang, Yanfen ; Li, Yingnian ; Shi, Peili ; Yu, Guirui ; Sun, Xiaomin
	2016-09-15
发表期刊	AGRICULTURAL AND FOREST METEOROLOGY
摘要	The inter-annual variability (IAV) of net ecosystem productivity (NEP) may be caused by both climatic factors and ecosystem responses. In this study, we used eddy covariance (EC) measurements over three typical grasslands in China to investigate the dynamics of NEP and its two components - gross primary productivity (GPP) and ecosystem respiration (Re) and their driving forces. We found that climatic factors and ecosystem response simultaneously influence the IAV of ecosystem carbon fluxes, with a dominant effect arising from an ecosystem response. On a daily scale, carbon fluxes were driven primarily by climatic factors, but effects from an ecosystem response strengthened when the period of analysis was extended. On an annual scale, ecosystem responses weakened the effects of climatic variability on ecosystem carbon fluxes for the three grasslands. This negative feedback demonstrated that ecosystem acclimatization to climate variability can constrain the IAV of carbon fluxes induced by such variability. (C) 2016 Elsevier B.V. All rights reserved.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/27835
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Zhang, Tao,Zhang, Yangjian,Xu, Mingjie,et al. Ecosystem response more than climate variability drives the inter-annual variability of carbon fluxes in three Chinese grasslands[J]. AGRICULTURAL AND FOREST METEOROLOGY,2016.
APA	Zhang, Tao.,Zhang, Yangjian.,Xu, Mingjie.,Xi, Yi.,Zhu, Juntao.,...&Sun, Xiaomin.(2016).Ecosystem response more than climate variability drives the inter-annual variability of carbon fluxes in three Chinese grasslands.AGRICULTURAL AND FOREST METEOROLOGY.
MLA	Zhang, Tao,et al."Ecosystem response more than climate variability drives the inter-annual variability of carbon fluxes in three Chinese grasslands".AGRICULTURAL AND FOREST METEOROLOGY (2016).