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题名: Changes in ecosystem service of soil conservation between 2000 and 2010 and its driving factors in southwestern China
作者: Rao Enming; Xiao Yi; Ouyang Zhiyun; Zheng Hua
刊名: CHINESE GEOGRAPHICAL SCIENCE
出版日期: 2016-04
卷号: 26, 期号:2, 页码:165-173
关键词: soil conservation ; ecosystem service ; Sloping Land Conversion Program (SLCP) ; ecological restoration ; urbanization ; southwestern China
DOI: 10.1007/s11769-015-0759-9
部门归属: 城市与区域生态国家重点实验室
英文摘要: 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 x 10(11) 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.
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/35536
Appears in Collections:城市与区域生态国家重点实验室_期刊论文

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