气候变化领域集成服务门户(CCPortal): Altered growth conditions more than reforestation counteracted forest biomass carbon emissions 1990

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DOI	10.1038/s41467-021-26398-2
	Altered growth conditions more than reforestation counteracted forest biomass carbon emissions 1990–2020
	Le Noë J.; Erb K.-H.; Matej S.; Magerl A.; Bhan M.; Gingrich S.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Understanding the carbon (C) balance in global forest is key for climate-change mitigation. However, land use and environmental drivers affecting global forest C fluxes remain poorly quantified. Here we show, following a counterfactual modelling approach based on global Forest Resource Assessments, that in 1990–2020 deforestation is the main driver of forest C emissions, partly counteracted by increased forest growth rates under altered conditions: In the hypothetical absence of changes in forest (i) area, (ii) harvest or (iii) burnt area, global forest biomass would reverse from an actual cumulative net C source of c. 0.74 GtC to a net C sink of 26.9, 4.9 and 0.63 GtC, respectively. In contrast, (iv) without growth rate changes, cumulative emissions would be 7.4 GtC, i.e., 10 times higher. Because this sink function may be discontinued in the future due to climate-change, ending deforestation and lowering wood harvest emerge here as key climate-change mitigation strategies. © 2021, The Author(s).
语种	英语
scopus关键词	carbon; carbon; biomass; carbon dioxide; carbon emission; carbon sequestration; climate change; deforestation; environmental factor; forest ecosystem; mitigation; reforestation; Article; biomass; calculation; carbon balance; carbon emission; climate change; deforestation; environmental parameters; forest; forest burnt area; growth rate; harvest; reforestation; theoretical model; biomass; carbon cycle; carbon sequestration; ecosystem; forestry; growth, development and aging; metabolism; tree; Biomass; Carbon; Carbon Cycle; Carbon Sequestration; Climate Change; Ecosystem; Forestry; Trees
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251331
作者单位	Institute of Social Ecology (SEC), Department of Economics and Social Sciences, University of Natural Resources and Life Sciences, Wien, Austria; Geology Laboratory, École Normale Supérieur, PSL University, Paris, France
推荐引用方式 GB/T 7714	Le Noë J.,Erb K.-H.,Matej S.,等. Altered growth conditions more than reforestation counteracted forest biomass carbon emissions 1990–2020[J],2021,12(1).
APA	Le Noë J.,Erb K.-H.,Matej S.,Magerl A.,Bhan M.,&Gingrich S..(2021).Altered growth conditions more than reforestation counteracted forest biomass carbon emissions 1990–2020.Nature Communications,12(1).
MLA	Le Noë J.,et al."Altered growth conditions more than reforestation counteracted forest biomass carbon emissions 1990–2020".Nature Communications 12.1(2021).