DOI: 10.1016/j.foreco.2016.01.026
Scopus记录号: 2-s2.0-84957573944
论文题名: Severe depletion of soil moisture following land-use changes for ecological restoration: Evidence from northern China
作者: Deng L. ; Yan W. ; Zhang Y. ; Shangguan Z.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 366 起始页码: 1
结束页码: 10
语种: 英语
英文关键词: Arid and semi-arid
; Artificial afforestation
; Land use changes
; Natural restoration
; Precipitation
; Soil water changes
Scopus关键词: Arid regions
; Conservation
; Ecology
; Ecosystems
; Land use
; Moisture
; Moisture determination
; Precipitation (chemical)
; Reforestation
; Restoration
; Revegetation
; Soil conservation
; Soil moisture
; Soils
; Vegetation
; Water resources
; Artificial afforestation
; Land-use change
; Natural restoration
; Semi arid
; Soil water
; Soil surveys
; Poaceae
英文摘要: 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. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65014
Appears in Collections: 影响、适应和脆弱性
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作者单位: State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A and F University, Yangling, Shaanxi, China; Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi, China
Recommended Citation:
Deng L.,Yan W.,Zhang Y.,et al. Severe depletion of soil moisture following land-use changes for ecological restoration: Evidence from northern China[J]. Forest Ecology and Management,2016-01-01,366