气候变化领域集成服务门户(CCPortal): A global map of root biomass across the world's forests

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DOI	10.5194/essd-13-4263-2021
	A global map of root biomass across the world's forests
	Huang, Yuanyuan; Ciais, Phillipe; Santoro, Maurizio; Makowski, David; Chave, Jerome; Schepaschenko, Dmitry; Abramoff, Rose Z.; Goll, Daniel S.; Yang, Hui; Chen, Ye; Wei, Wei; Piao, Shilong
通讯作者	Huang, YY (通讯作者)
发表日期	2021
ISSN	1866-3508
EISSN	1866-3516
起始页码	4263
结束页码	4274
卷号	13 期号:8
英文摘要	As a key component of the Earth system, roots play a key role in linking Earth's lithosphere, hydrosphere, biosphere and atmosphere. Here we combine 10 307 field measurements of forest root biomass worldwide with global observations of forest structure, climatic conditions, topography, land management and soil characteristics to derive a spatially explicit global high-resolution (similar to 1 km) root biomass dataset, including fine and coarse roots. In total, 142 +/- 25 (95% CI) Pg of live dry-matter biomass is stored belowground, representing a global average root : shoot biomass ratio of 0.25 +/- 0.10. Earlier studies (Jackson et al., 1997; Robinson, 2007; Saugier et al., 2001) are 44%-226% larger than our estimations of the total root biomass in tropical, temperate and boreal forests. The total global forest root biomass from a recent estimate (Spawn et al., 2020) is 24% larger than this study. The smaller estimation from this study is attributable to the updated forest area, spatially explicit aboveground biomass density used to predict the patterns of root biomass, new root measurements and the upscaling methodology. We show specifically that the root shoot allometry is one underlying driver that has led to methodological overestimation of root biomass in previous estimations.
关键词	ABOVEGROUND BIOMASS ROOTSHOOT RATIOS GENERAL-MODEL ALLOCATION CARBON PATTERNS ALLOMETRY EQUATIONS DATABASE VOLUME
语种	英语
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences
WOS类目	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000692609500001
来源期刊	EARTH SYSTEM SCIENCE DATA
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260545
推荐引用方式 GB/T 7714	Huang, Yuanyuan,Ciais, Phillipe,Santoro, Maurizio,et al. A global map of root biomass across the world's forests[J]. 中国科学院青藏高原研究所,2021,13(8).
APA	Huang, Yuanyuan.,Ciais, Phillipe.,Santoro, Maurizio.,Makowski, David.,Chave, Jerome.,...&Piao, Shilong.(2021).A global map of root biomass across the world's forests.EARTH SYSTEM SCIENCE DATA,13(8).
MLA	Huang, Yuanyuan,et al."A global map of root biomass across the world's forests".EARTH SYSTEM SCIENCE DATA 13.8(2021).