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Publication Details

Journal Article
JA0474-12
Article TitleThe Effects of Vegetation Restoration on Soil Erosion in China: A Review
AuthorLishan Ran, Xixi Lu and Xu Jianchu
Year2012
Journal TitleCritical Reviews in Environmental Science and Technology
InstitutionDOI:10.1080/10643389.2011.644225
Pages1-28
Call NumberJA0474-12
KeywordsVegetation restoration, Soil erosion, Soil reduction benefit, China
Abstract:
Soil erosion, as the second biggest environmental and public health problem facing human society, has posed significant and widespread concern. China has been one of the countries that have long suffered from severe soil erosion which has led to widespread land degradation and decreased crop yields, seriously hindering economic and social development. During the past few decades, China has made a large effort at soil conservation to combat soil erosion; vegetation restoration strategy was a major approach given equal importance compared to engineering measures. A measure of success has been achieved. However, many uncertainties remain such as to what extent the vegetation restoration measures have reduced soil erosion and whether it is worthwhile to conduct vegetation restoration programs at larger spatial scales. This paper first analyzes the impacts of vegetation restoration on soil erosion in terms of vegetation cover variation, vegetation species and their dependence on precipitation. Then the spatial scale effect of soil reduction benefits from vegetation restoration is elaborated: that is, the soil reduction benefit decreases with increasing spatial treated area. In addition, a comprehensive discussion about the dispute between vegetation restoration and engineering measures is made in combination with published studies spanning large spatial and temporal scales. Finally, future research needs regarding vegetation restoration efforts are given. In order to accurately evaluate the effects of vegetation restoration programs on soil erosion, shorter temporal dynamics and larger spatial-scale assessments should be undertaken in future. And also, the present flawed assessment system has to be improved. Specific areas demanding immediate attention are highlighted as well.
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GRP 6: Developing policies and incentives for multifunctional landscapes with trees that provide environmental services
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