气候变化领域集成服务门户(CCPortal): Ecological restoration impact on total terrestrial water storage

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DOI	10.1038/s41893-020-00600-7
	Ecological restoration impact on total terrestrial water storage
	Zhao M.; Geruo A.; Zhang J.; Velicogna I.; Liang C.; Li Z.
发表日期	2021
ISSN	2398-9629
起始页码	56
结束页码	62
卷号	4 期号:1
英文摘要	Large-scale ecological restoration (ER) has been successful in curbing land degradation and improving ecosystem services. Previous studies have shown that ER changes individual water flux or storage, but its net impact on total water resources remains unknown. Here we quantify ER impact on total terrestrial water storage (TWS) in the Mu Us Sandyland of northern China, a hotspot of ER practices. By integrating multiple satellite observations and government reports, we construct a TWS record that covers both the pre-ER (1982–1998) and the post-ER (2003–2016) periods. We observe a significant TWS depletion (P < 0.0001) after ER, a substantial deviation from the pre-ER condition. This contrasts with a TWS increase simulated by an ecosystem model that excludes human interventions, indicating that ER is the primary cause for the observed water depletion. We estimate that ER has consumed TWS at an average rate of 16.6 ± 5.0 mm yr−1 in the analysed domain, equivalent to a volume of 21 km3 freshwater loss during the post-ER period. This study provides a framework that directly informs the water cost of ER. Our findings show that ER can exert excessive pressure on regional water resources. Sustainable ER strategies require optimizing ecosystem water consumption to balance land restoration and water resource conservation. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	Ecosystems; Restoration; Water conservation; Water supply; Ecological restoration; Ecosystem services; Government reports; Human intervention; Multiple satellites; Regional water resources; Resource conservation; Terrestrial water storage; Water resources
来源期刊	Nature Sustainability
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/249905
作者单位	Department of Earth System Science, University of California, Irvine, CA, United States; Department of Ecology, Evolution, and Organismal Biology, Iowa State University, Ames, IA, United States; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; School of Ecology and Environment, Inner Mongolia University, Hohhot, Inner Mongolia, China
推荐引用方式 GB/T 7714	Zhao M.,Geruo A.,Zhang J.,et al. Ecological restoration impact on total terrestrial water storage[J],2021,4(1).
APA	Zhao M.,Geruo A.,Zhang J.,Velicogna I.,Liang C.,&Li Z..(2021).Ecological restoration impact on total terrestrial water storage.Nature Sustainability,4(1).
MLA	Zhao M.,et al."Ecological restoration impact on total terrestrial water storage".Nature Sustainability 4.1(2021).