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题名: Severe depletion of soil moisture following land-use changes for ecological restoration: Evidence from northern China
作者: Lei Deng1, 2; Weiming Yan1; Yongwang Zhang2; Zhouping Shangguan1, 2
刊名: Forest Ecology and Management
出版日期: 2016
期号: 366, 页码:1-10
关键词: Arid and semi-arid ; Artificial afforestation ; Land use changes ; Natural restoration ; Precipitation ; Soil water changes
DOI: 10.1016/j.foreco.2016.01.026
通讯作者: Zhouping Shangguan
文章类型: Article
英文摘要: e-width: 0px; "> Soil moisture is fundamental to ecosystem sustainability in arid and semi-arid regions, and characterizing
temporal variations in soil moisture levels in response to changes in land use is important in assessing
whether vegetation that has been restored as part of ecological restoration can be sustained. Such an
assessment is presented here based on 78 recent publications focused on China’s initiatives at ecological
restoration including the ‘Grain for Green’ programme and the ‘Three Norths Shelter Forest System’ project. The study analysed 1740 observations at 83 sites in eight provinces in northern China to determine
temporal and spatial variations in soil moisture and the causes of those variations. Changes in land use for
restoration of ecosystems led to severe depletion in soil moisture levels – as low as 9%, determined gravimetrically – in the 0–100 cm layer of soil. The extent of depletion was influenced significantly by the
choice of species for restoration (trees, shrubs, or grasses) and land use before the restoration.
Deliberate restoration of vegetation may have the largest negative impact on soil moisture at sites that
receive less than 600 mm of annual precipitation and may be practical only when it exceeds 600 mm.
Afforestation decreased the levels of soil moisture significantly, whereas natural restoration had no significant effect on soil moisture. Therefore, natural restoration is the better option for maintaining the stability of water resources in arid and semi-arid regions. Afforestation would be a poor choice for places in
which annual precipitation is close to or less than potential evapotranspiration but a better choice if
annual precipitation is adequate. In planning revegetation initiatives, planners must understand that different environments support different vegetation types, and therefore require different solutions.
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000375161100001
通讯作者邮箱: shangguan@ms.iswc.ac.cn
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.iswc.ac.cn/handle/361005/7811
Appears in Collections:水保所科研产出--SCI_2016--SCI

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作者单位: 1.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, PR China
2.Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, PR China

Recommended Citation:
Lei Deng,Weiming Yan,Yongwang Zhang,et al. Severe depletion of soil moisture following land-use changes for ecological restoration: Evidence from northern China[J]. Forest Ecology and Management,2016(366):1-10.
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