首页|Changes in Ecosystem Service of Soil Conservation Between 2000 and 2010 and Its Driving Factors in Southwestern China

Changes in Ecosystem Service of Soil Conservation Between 2000 and 2010 and Its Driving Factors in Southwestern China

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Human activities significantly alter ecosystems and their services;however,quantifying the impact of human activities on ecosystems has been a great challenge in ecosystem management.We used the Universal Soil Loss Equation and county-level socioeconomic data to assess the changes in the ecosystem service of soil conservation between 2000 and 2010,and to analyze its spatial characteristics and driving factors in the southwestern China.The results showed that cropland in the southwestern China decreased by 3.74％,while urban land,forest,and grassland areas increased by 46.78％,0.86％,and 1.12％,respectively.The soil conservation increased by 1.88 × 1011 kg,with deterioration only in some local areas.The improved and the degraded areas accounted for 6.41％ and 2.44％ of the total land area,respectively.Implementation of the Sloping Land Conversion Program and urbanization explained 57.80％ and 23.90％ of the variation in the soil conservation change,respectively,and were found to be the main factors enhancing soil conservation.The 2008 Wenchuan earthquake was one of the factors that led to the degradation of soil conservation.Furthermore,industrial adjustment,by increasing shares of Industry and Service and reducing those of Agriculture,has also promoted soil conservation.Our results quantitatively showed and emphasized the contributions to soil conservation improvement made by implementing ecological restoration programs and promoting urbanization.Consequently,these results provide basic information to improve our understanding of the effects of ecological restoration programs,and help guide future sustainable urban development and regional industrial restructuring.

soil conservationecosystem serviceSloping Land Conversion Program (SLCP)ecological restorationurbanizationsouthwestern China

RAO Enming、XIAO Yi、OUYANG Zhiyun、ZHENG Hua

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State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

University of Chinese Academy of Sciences, Beijing 100049, China

National Key Technology Research and Development Program of ChinaSpecial Issue of National Remote Sensing Survey and Assessment of Eco-Environment Change between 2000 and 2010

2011BAC09B08STSN-04-01

2016

10.1007/s11769-015-0759-9

中国地理科学(英文版)
中国科学院长春地理研究所

中国地理科学(英文版)

CSTPCDCSCDSCI
影响因子：0.754
ISSN：1002-0063
年,卷(期)：2016.26(2)
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