气候变化领域集成服务门户(CCPortal): Carbon fractions in the world’s dead wood

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DOI	10.1038/s41467-021-21149-9
	Carbon fractions in the world’s dead wood
	Martin A.R.; Domke G.M.; Doraisami M.; Thomas S.C.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	A key uncertainty in quantifying dead wood carbon (C) stocks—which comprise ~8% of total forest C pools globally—is a lack of accurate dead wood C fractions (CFs) that are employed to convert dead woody biomass into C. Most C estimation protocols utilize a default dead wood CF of 50%, but live tree studies suggest this value is an over-estimate. Here, we compile and analyze a global database of dead wood CFs in trees, showing that dead wood CFs average 48.5% across forests, deviating significantly from 50%, and varying systematically among biomes, taxonomic divisions, tissue types, and decay classes. Utilizing data-driven dead wood CFs in tropical forests alone may correct systematic overestimates in dead wood C stocks of ~3.0 Pg C: an estimate approaching nearly the entire dead wood C pool in the temperate forest biome. We provide for the first time, robust empirical dead wood CFs to inform global forest C estimation. © 2021, The Author(s).
语种	英语
scopus关键词	carbon; carbon; biomass; carbon sequestration; database; dead wood; estimation method; isotopic fractionation; taxonomy; temperate forest; tropical forest; angiosperm; Article; biome; decomposition; fractionation; gymnosperm; plant taxonomy; plant tissue; temperate deciduous forest; tropical rain forest; wood; bioremediation; carbon cycle; chemistry; classification; climate; forest; metabolism; plant structures; tree; wood; Matthiola; Biodegradation, Environmental; Carbon; Carbon Cycle; Climate; Forests; Plant Structures; Trees; Wood
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/251516
作者单位	Department of Physical and Environmental Sciences, University of Toronto Scarborough, Scarborough, ON, Canada; USDA Forest Service, Northern Research Station, St. Paul, MN, United States; Institute of Forestry and Conservation, Daniels Faculty of Architecture, Landscape, and Design, University of Toronto, Toronto, ON, Canada
推荐引用方式 GB/T 7714	Martin A.R.,Domke G.M.,Doraisami M.,等. Carbon fractions in the world’s dead wood[J],2021,12(1).
APA	Martin A.R.,Domke G.M.,Doraisami M.,&Thomas S.C..(2021).Carbon fractions in the world’s dead wood.Nature Communications,12(1).
MLA	Martin A.R.,et al."Carbon fractions in the world’s dead wood".Nature Communications 12.1(2021).