干旱区生态环境知识资源中心(Arid): The global distribution and environmental drivers of aboveground versus belowground plant biomass

Arid

DOI	10.1038/s41559-021-01485-1
	The global distribution and environmental drivers of aboveground versus belowground plant biomass
	Ma, Haozhi; Mo, Lidong; Crowther, Thomas W.; Maynard, Daniel S.; van den Hoogen, Johan; Stocker, Benjamin D.; Terrer, Cesar; Zohner, Constantin M.
通讯作者	Zohner, CM (corresponding author), ETH Zurich Swiss Fed Inst Technol, Inst Integrat Biol, Zurich, Switzerland.
来源期刊	NATURE ECOLOGY & EVOLUTION
ISSN	2397-334X
出版年	2021
卷号	5 期号:8 页码:1110-+
英文摘要	A poor understanding of the fraction of global plant biomass occurring belowground as roots limits our understanding of present and future ecosystem function and carbon pools. Here we create a database of root-mass fractions (RMFs), an index of plant below- versus aboveground biomass distributions, and generate quantitative, spatially explicit global maps of RMFs in trees, shrubs and grasses. Our analyses reveal large gradients in RMFs both across and within vegetation types that can be attributed to resource availability. High RMFs occur in cold and dry ecosystems, while low RMFs dominate in warm and wet regions. Across all vegetation types, the directional effect of temperature on RMFs depends on water availability, suggesting feedbacks between heat, water and nutrient supply. By integrating our RMF maps with existing aboveground plant biomass information, we estimate that in forests, shrublands and grasslands, respectively, 22%, 47% and 67% of plant biomass exists belowground, with a total global belowground fraction of 24% (20-28%), that is, 113 (90-135) Gt carbon. By documenting the environmental correlates of root biomass allocation, our results can inform model projections of global vegetation dynamics under current and future climate scenarios. The fraction of plant biomass in aboveground versus root tissues has implications for carbon storage and dynamics. Here the authors collate a dataset on root-mass fractions and use these data to explore large scale patterns of belowground plant biomass.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000665695400002
WOS关键词	TROPICAL SECONDARY FORESTS ; DESERT SHRUB COMMUNITIES ; ROOT-SHOOT ALLOCATION ; CARBON STORAGE ; ALLOMETRIC MODELS ; PRIMARY PRODUCTIVITY ; WATER AVAILABILITY ; ALPINE MEADOW ; TREE SIZE ; SOIL
WOS类目	Ecology ; Evolutionary Biology
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352409
作者单位	[Ma, Haozhi; Mo, Lidong; Crowther, Thomas W.; Maynard, Daniel S.; van den Hoogen, Johan; Stocker, Benjamin D.; Zohner, Constantin M.] ETH Zurich Swiss Fed Inst Technol, Inst Integrat Biol, Zurich, Switzerland; [Stocker, Benjamin D.] Swiss Fed Inst Forest Snow & Landscape Res WSL, Birmensdorf, Switzerland; [Terrer, Cesar] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94550 USA; [Terrer, Cesar] MIT, Dept Civil & Environm Engn, 77 Massachusetts Ave, Cambridge, MA 02139 USA
推荐引用方式 GB/T 7714	Ma, Haozhi,Mo, Lidong,Crowther, Thomas W.,et al. The global distribution and environmental drivers of aboveground versus belowground plant biomass[J],2021,5(8):1110-+.
APA	Ma, Haozhi.,Mo, Lidong.,Crowther, Thomas W..,Maynard, Daniel S..,van den Hoogen, Johan.,...&Zohner, Constantin M..(2021).The global distribution and environmental drivers of aboveground versus belowground plant biomass.NATURE ECOLOGY & EVOLUTION,5(8),1110-+.
MLA	Ma, Haozhi,et al."The global distribution and environmental drivers of aboveground versus belowground plant biomass".NATURE ECOLOGY & EVOLUTION 5.8(2021):1110-+.