Roles of Climate, Vegetation and Soil in Regulating the Spatial Variations in Ecosystem Carbon Dioxide Fluxes in the Northern Hemisphere
Chen, Z; Yu, GR; Ge, JP; Wang, QF; Zhu, XJ; Xu, ZW
2015
Source PublicationPLOS ONE
ISSN1932-6203
Volume10Issue:4Pages:-
AbstractClimate, vegetation, and soil characteristics play important roles in regulating the spatial variation in carbon dioxide fluxes, but their relative influence is still uncertain. In this study, we compiled data from 241 eddy covariance flux sites in the Northern Hemisphere and used Classification and Regression Trees and Redundancy Analysis to assess how climate, vegetation, and soil affect the spatial variations in three carbon dioxide fluxes (annual gross primary production (AGPP), annual ecosystem respiration (ARE), and annual net ecosystem production (ANEP)). Our results showed that the spatial variations in AGPP, ARE, and ANEP were significantly related to the climate and vegetation factors (correlation coefficients, R = 0.22 to 0.69, P < 0.01) while they were not related to the soil factors (R = -0.11 to 0.14, P > 0.05) in the Northern Hemisphere. The climate and vegetation together explained 60% and 58% of the spatial variations in AGPP and ARE, respectively. Climate factors (mean annual temperature and precipitation) could account for 45-47 % of the spatial variations in AGPP and ARE, but the climate constraint on the vegetation index explained approximately 75 %. Our findings suggest that climate factors affect the spatial variations in AGPP and ARE mainly by regulating vegetation properties, while soil factors exert a minor effect. To more accurately assess global carbon balance and predict ecosystem responses to climate change, these discrepant roles of climate, vegetation, and soil are required to be fully considered in the future land surface models. Moreover, our results showed that climate and vegetation factors failed to capture the spatial variation in ANEP and suggest that to reveal the underlying mechanism for variation in ANEP, taking into account the effects of other factors (such as climate change and disturbances) is necessary.
SubtypeJournal
Subject AreaScience & Technology - Other Topics
WOS Subject ExtendedMultidisciplinary Sciences
WOS KeywordNET PRIMARY PRODUCTIVITY ; TERRESTRIAL ECOSYSTEMS ; LONG-TERM ; INTERANNUAL VARIABILITY ; WATER-VAPOR ; EXCHANGE ; RESPIRATION ; MODEL ; PATTERNS ; FORESTS
Indexed BySCI
Language英语
WOS IDWOS:000353713100075
PublisherPUBLIC LIBRARY SCIENCE
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44427
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
Chen, Z,Yu, GR,Ge, JP,et al. Roles of Climate, Vegetation and Soil in Regulating the Spatial Variations in Ecosystem Carbon Dioxide Fluxes in the Northern Hemisphere[J]. PLOS ONE,2015,10(4):-.
APA Chen, Z,Yu, GR,Ge, JP,Wang, QF,Zhu, XJ,&Xu, ZW.(2015).Roles of Climate, Vegetation and Soil in Regulating the Spatial Variations in Ecosystem Carbon Dioxide Fluxes in the Northern Hemisphere.PLOS ONE,10(4),-.
MLA Chen, Z,et al."Roles of Climate, Vegetation and Soil in Regulating the Spatial Variations in Ecosystem Carbon Dioxide Fluxes in the Northern Hemisphere".PLOS ONE 10.4(2015):-.
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