Carbon uptake by mature Amazon forests has mitigated Amazon nations’ carbon emissions

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• 作者：Oliver L. Phillips ; Roel J. W. Brienen
• 关键词：Amazonia ; Carbon balance ; Carbon sink ; Sequestration ; Land use change ; Climate change ; Tropical forests ; Ecosystem service
• 刊名：Carbon Balance and Management
• 出版年：2017
• 出版时间：December 2017
• 年：2017
• 卷：12
• 期：1
• 全文大小：1135KB
• 刊物主题：Environmental Management; Ecosystems; Forestry;
• 出版者：Springer International Publishing
• ISSN：1750-0680
• 卷排序：12

文摘

BackgroundSeveral independent lines of evidence suggest that Amazon forests have provided a significant carbon sink service, and also that the Amazon carbon sink in intact, mature forests may now be threatened as a result of different processes. There has however been no work done to quantify non-land-use-change forest carbon fluxes on a national basis within Amazonia, or to place these national fluxes and their possible changes in the context of the major anthropogenic carbon fluxes in the region. Here we present a first attempt to interpret results from ground-based monitoring of mature forest carbon fluxes in a biogeographically, politically, and temporally differentiated way. Specifically, using results from a large long-term network of forest plots, we estimate the Amazon biomass carbon balance over the last three decades for the different regions and nine nations of Amazonia, and evaluate the magnitude and trajectory of these differentiated balances in relation to major national anthropogenic carbon emissions.