气候变化领域集成服务门户(CCPortal): Global ecosystem thresholds driven by aridity

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DOI	10.1126/science.aay5958
	Global ecosystem thresholds driven by aridity
	Berdugo M.; Delgado-Baquerizo M.; Soliveres S.; Hernández-Clemente R.; Zhao Y.; Gaitán J.J.; Gross N.; Saiz H.; Maire V.; Lehman A.; Rillig M.C.; Solé R.V.; Maestre F.T.
发表日期	2020
ISSN	0036-8075
起始页码	787
结束页码	790
卷号	367 期号:6479
英文摘要	Aridity, which is increasing worldwide because of climate change, affects the structure and functioning of dryland ecosystems. Whether aridification leads to gradual (versus abrupt) and systemic (versus specific) ecosystem changes is largely unknown. We investigated how 20 structural and functional ecosystem attributes respond to aridity in global drylands. Aridification led to systemic and abrupt changes in multiple ecosystem attributes. These changes occurred sequentially in three phases characterized by abrupt decays in plant productivity, soil fertility, and plant cover and richness at aridity values of 0.54, 0.7, and 0.8, respectively. More than 20% of the terrestrial surface will cross one or several of these thresholds by 2100, which calls for immediate actions to minimize the negative impacts of aridification on essential ecosystem services for the more than 2 billion people living in drylands. Copyright © 2020 The Authors,
关键词	aridification aridity ecological stability ecosystem function global perspective soil fertility article ecosystem human plant yield soil fertility structure activity relation
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133718
推荐引用方式 GB/T 7714	Berdugo M.,Delgado-Baquerizo M.,Soliveres S.,et al. Global ecosystem thresholds driven by aridity[J]. Science,2020,367(6479).
APA	Berdugo M..,Delgado-Baquerizo M..,Soliveres S..,Hernández-Clemente R..,Zhao Y..,...&Maestre F.T..(2020).Global ecosystem thresholds driven by aridity.,367(6479).
MLA	Berdugo M.,et al."Global ecosystem thresholds driven by aridity".367.6479(2020).