| DOI: | 10.1016/j.gloplacha.2014.04.003
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| 论文题名: | Geographical statistical assessments of carbon fluxes in terrestrial ecosystems of China: Results from upscaling network observations |
| 作者: | Zhu X.-J.; Yu G.-R.; He H.-L.; Wang Q.-F.; Chen Z.; Gao Y.-N.; Zhang Y.-P.; Zhang J.-H.; Yan J.-H.; Wang H.-M.; Zhou G.-S.; Jia B.-R.; Xiang W.-H.; Li Y.-N.; Zhao L.; Wang Y.-F.; Shi P.-L.; Chen S.-P.; Xin X.-P.; Zhao F.-H.; Wang Y.-Y.; Tong C.-L.; Fu Y.-L.; Wen X.-F.; Liu Y.-C.; Zhang L.-M.; Zhang L.; Su W.; Li S.-G.; Sun X.-M.
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| ISSN: | 0921-8507
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| 出版年: | 2014
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| 卷: | 118 | | 起始页码: | 52
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| 结束页码: | 61
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| 语种: | 英语
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| 英文关键词: | Carbon budget assessment
; Ecosystem respiration
; Eddy covariance
; Gross ecosystem productivity
; Net ecosystem productivity
; Potential carbon sink
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| Scopus关键词: | Budget control
; Climate change
; Ecosystems
; Optimization
; Productivity
; Spatial distribution
; Tropics
; Carbon budgets
; Carbon sink
; Ecosystem respiration
; Eddy covariance
; Gross ecosystem productivities
; Net ecosystem productivities
; Carbon
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| 英文摘要: | Accurate quantifying the magnitudes and distributions of carbon budgets is helpful for strategies in mitigating global climate change. Based on spatial patterns of carbon fluxes (gross ecosystem productivity (GEP), ecosystem respiration (ER) and net ecosystem productivity (NEP)) and their drivers, we constructed geographical statistical assessment schemes and quantified the magnitudes of carbon fluxes in China. The optimal assessment scheme was then validated with observed eddy covariance data to analyze the spatial distributions of carbon fluxes. Using climate-based geographical statistical assessment schemes, our estimates of GEP, ER and NEP in China during 2000s were 7.51±0.51, 5.82±0.16 and 1.91±0.15PgCyr-1, corresponding to 4.29%-6.80%, 5.65%-6.06% and 9.10%-12.73% of global annual carbon fluxes, respectively. The spatial distributions of GEP, ER and NEP, generated from the optimal scheme, were similar, following a southeast-northwest decreasing gradient. The maximum values for GEP, ER and NEP were 1790, 1300 and 490gCm-2yr-1, respectively, which occurred in Central subtropics and Southern subtropics. Climate-based geographical statistical assessment schemes provided an independent dataset for the regional carbon budget assessment, which can be deemed as the potential carbon fluxes. Meanwhile, most areas in China were potential carbon sink especially Eastern China and the largest potential carbon sink appeared in Central subtropics and Southern subtropics. © 2014 Elsevier B.V. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84899854894&doi=10.1016%2fj.gloplacha.2014.04.003&partnerID=40&md5=9a9de5cefb1bacb5d0ac1e656dc6005f
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/11413
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| Appears in Collections: | 全球变化的国际研究计划
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作者单位: | Synthesis Research Center of Chinese Ecosystem Research Network, Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
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| Recommended Citation: | |
Zhu X.-J.,Yu G.-R.,He H.-L.,et al. Geographical statistical assessments of carbon fluxes in terrestrial ecosystems of China: Results from upscaling network observations[J],2014-01-01,118.
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