Ecosystem response more than climate variability drives the inter-annual variability of carbon fluxes in three Chinese grasslands
Zhang, T; Zhang, YJ; Xu, MJ; Xi, Y; Zhu, JT; Zhang, XZ; Wang, YF; Li, YNA; Shi, PL; Yu, GR; Sun, XM
2016
Source PublicationAGRICULTURAL AND FOREST METEOROLOGY
ISSN0168-1923
Volume225Pages:48-56
AbstractThe 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.
SubtypeJournal
KeywordEcosystem response Carbon flux Inter-annual variability Driving force Grassland
Subject AreaAgriculture ; Forestry ; Meteorology & Atmospheric Sciences
WOS Subject ExtendedAgronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS KeywordLEYMUS-CHINENSIS STEPPE ; CO2 EXCHANGE ; TERRESTRIAL ECOSYSTEMS ; SOIL RESPIRATION ; DIOXIDE EXCHANGE ; INNER-MONGOLIA ; TEMPERATE GRASSLAND ; SEASONAL-VARIATION ; FUNCTIONAL-CHANGES ; ATMOSPHERIC CO2
Indexed BySCI
Language英语
WOS IDWOS:000378670000005
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44185
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Zhang, T,Zhang, YJ,Xu, MJ,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,2016,225:48-56.
APA Zhang, T.,Zhang, YJ.,Xu, MJ.,Xi, Y.,Zhu, JT.,...&Sun, XM.(2016).Ecosystem response more than climate variability drives the inter-annual variability of carbon fluxes in three Chinese grasslands.AGRICULTURAL AND FOREST METEOROLOGY,225,48-56.
MLA Zhang, T,et al."Ecosystem response more than climate variability drives the inter-annual variability of carbon fluxes in three Chinese grasslands".AGRICULTURAL AND FOREST METEOROLOGY 225(2016):48-56.
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