Quantitative assessment of the supply-demand relationship of soil conservation service in the Sushui River Basin
YANG Liwen,1,2,3, WANG Dayong4, WANG Yongzhi3, LIANG Ze2, WU Shuyao2, LI Shuangcheng,21. Department of Resources and Environmental Engineering, Shanxi Institute of Energy, Jinzhong 030060, China 2. Laboratory for Earth Surface Processes, Ministry of Education, Peking University, Beijing 100871, China 3. School of Geographical Sciences, Shanxi Normal University, Linfen 041004, China 4. Climate Center of Shanxi Province, Taiyuan 030006, China
Abstract Soil conservation services is an important ecosystem regulation service. Quantitative assessment of the supply-demand relationship of soil conservation service may play a critical role in the environmental management of watershed. In this study, we calculated the supply of soil conservation service in the Sushui watershed using the Revised Universal Soil Loss Equation (RUSLE), and quantified the demand of soil conservation service using the indicators of per unit soil nutrient loss and reservoir silt cleaning cost. Then we analyzed the relationship between supply and demand, which was validated by data from a questionnaire survey. Our results show that: (1) The supply area of soil conservation service was primarily distributed in the Zhongtiao Mountainous area in the upstream of the river, where the land-use types were mainly woodland and grassland. The demand area of soil conservation service was primarily distributed on alluvial plains in the middle and lower reaches of the river, where the land-use type was non-irrigated farmland. (2) The balanced area of supply and demand in 2000 and 2015 were 34.80% and 76.27% of the Sushui watershed area, respectively. The improvement of supply-demand relationship was due to the reduction of demand, which was mainly because of the decrease of rainfall erosivity. Our study revealed the status and influencing factors of the spatial and quantitative relationship between supply and demand, which could provide a theoretical support for land-use planning and natural resources management. Keywords:soil conservation service;supply-demand balance;ecosystem services;quantitative assessment;land use;residents' satisfaction;Sushui River Basin
PDF (13614KB)元数据多维度评价相关文章导出EndNote|Ris|Bibtex收藏本文 本文引用格式 杨丽雯, 王大勇, 王勇智, 梁泽, 吴舒尧, 李双成. 涑水河流域土壤保持服务供需关系量化评估. 资源科学[J], 2020, 42(12): 2451-2462 doi:10.18402/resci.2020.12.15 YANG Liwen, WANG Dayong, WANG Yongzhi, LIANG Ze, WU Shuyao, LI Shuangcheng. Quantitative assessment of the supply-demand relationship of soil conservation service in the Sushui River Basin. RESOURCES SCIENCE[J], 2020, 42(12): 2451-2462 doi:10.18402/resci.2020.12.15
调查问卷设置了问题:“您认为本地森林和草地提供的土壤保持服务能否满足生产和生活需求?假设4分表示完全能满足需求,0分表示完全不能满足,请您选择相应的分数来表示满足程度。A. 4分 B. 3分 C. 2分 D. 1分 E. 0分”。4分、3分、2分、1分和0分分别对应着非常满意、满意、基本满意、不满意和非常不满意。
Table 2 表2 表22000年和2015年涑水河流域土壤保持服务供给区面积和供给量变化 Table 2Supply area and supply amount of soil conservation service and change in the Sushui River Basin, 2000 and 2015
Table 3 表3 表32000年和2015年涑水河流域土壤保持服务需求区面积和需求量变化 Table 3Demand area and demand amount of soil conservation service and change in the Sushui River Basin, 2000 and 2015
Table 4 表4 表42000年和2015年涑水河流域土壤侵蚀量、降雨侵蚀力和植被覆盖度变化 Table 4Actual soil erosion, rainfall erosivity, and vegetation coverage and change in the Sushui River Basin, 2000 and 2015
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