气候变化领域集成服务门户(CCPortal): Drought resistance enhanced by tree species diversity in global forests

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DOI	10.1038/s41561-022-01026-w
	Drought resistance enhanced by tree species diversity in global forests
	Liu, Dan; Wang, Tao; Penuelas, Josep; Piao, Shilong
发表日期	2022
ISSN	1752-0894
EISSN	1752-0908
起始页码	800
结束页码	+
卷号	15 期号:10 页码:14
英文摘要	Tree species diversity promotes drought resistance in nearly half of global forests, according to a global analysis of the relationship between species richness and drought-induced changes in forest productivity. Restoring species diversity is proposed as a strategy to improve ecosystem resistance to extreme droughts, but the impact of species diversity on resistance has not been evaluated across global forests. Here we compile a database that contains tree species richness from more than 0.7 million forest plots and satellite-based estimation of drought resistance. Using this database, we provide a spatially explicit map of species diversity effect on drought resistance. We found that higher species diversity could notably enhance drought resistance in about half of global forests but was spatially highly variable. Drought regimes (frequency and intensity) and climatic water deficit were important determinants of differences in the extent that species diversity could enhance forest drought resistance among regions, with such benefits being larger in dry and drought-prone forests. According to a predictive model of species diversity effect, the conversion of current monoculture to mixed-species tree plantations could improve drought resistance, with the large increase in dry forests. Our findings provide evidence that species diversity could buffer global forests against droughts. Restoration of species diversity could then be an effective way to mitigate the impact of extreme droughts on large scales, especially in dry and drought-prone regions.
学科领域	Geosciences, Multidisciplinary
语种	英语
WOS研究方向	Geology
WOS记录号	WOS:000858383600001
来源期刊	NATURE GEOSCIENCE
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/272585
作者单位	Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS; Centro de Investigacion Ecologica y Aplicaciones Forestales (CREAF); Consejo Superior de Investigaciones Cientificas (CSIC); Centro de Investigacion Ecologica y Aplicaciones Forestales (CREAF); Peking University
推荐引用方式 GB/T 7714	Liu, Dan,Wang, Tao,Penuelas, Josep,et al. Drought resistance enhanced by tree species diversity in global forests[J]. 中国科学院青藏高原研究所,2022,15(10):14.
APA	Liu, Dan,Wang, Tao,Penuelas, Josep,&Piao, Shilong.(2022).Drought resistance enhanced by tree species diversity in global forests.NATURE GEOSCIENCE,15(10),14.
MLA	Liu, Dan,et al."Drought resistance enhanced by tree species diversity in global forests".NATURE GEOSCIENCE 15.10(2022):14.