基于碳收支的三峡库区生态补偿分区及测度研究

目的]揭示三峡库区碳收支的动态变化规律，划定碳收支的生态补偿分区，丰富生态补偿量化测度依据，完善生态补偿标准，进而为三峡库区相关部门制定生态补偿政策提供理论参考。方法]以三峡库区26个区县为研究尺度，运用标准显性比较优势指数法、K-means聚类分析法和空间叠加分析等方法，基于三峡库区碳收支核算差异和库区地理位置，划分生态支付区和受偿区，测算了三峡库区生态补偿额度。结果](1) 2010—2017年三峡库区碳收支量总体结果均为正值，呈现先下降后上升的“√”型波动上升趋势。(2)将三峡库区生态补偿分区重构为8种类型，分为4个一般受偿区、11个重点受偿区、10个一般支付区和1个重点支付区。(3) 2010年、2012年、2014年和2017年三峡库区生态补偿总额度为20.26亿元、16.74亿元、21.17亿元和25.20亿元，总体呈现上涨的趋势，其中生态补偿以区内补偿为主，区内补偿占比为80%以上。结论] 2010—2017年三峡库区碳收支量均为正值且呈现上涨趋势，研究以碳收支为依据，结合全方位多角度因素构建生态补偿体系，实现生态补偿分区，为库区各区县的横向生态补偿提供量化依据，...

Study on Ecological Compensation Zoning and Measurement in the Three Gorges Reservoir Area Based on Carbon Revenue and Expenditure

Objective] The aims of this study are to reveal the dynamic changes of carbon revenue and expenditure in the Three Gorges Reservoir Area, delineate the ecological compensation zones of carbon revenue and expenditure, enrich the quantitative measurement basis of ecological compensation, improve the ecological compensation standard, and then provide theoretical reference for the relevant departments in the Three Gorges Reservoir Area to formulate ecological compensation policies. Methods] This study takes 26 districts and counties in the Three Gorges Reservoir area as the research samples, and uses the standard dominant comparative advantage index method, K-means cluster analysis and spatial overlay analysis to divide ecological payment areas and compensation areas based on the differences in carbon revenue and expenditure accounting in the Three Gorges Reservoir area and the geographical location of the reservoir area, and to measure the ecological compensation amount in the Three Gorges Reservoir area. Results](1)The overall results of carbon revenue and expenditure in the Three Gorges Reservoir area from 2010 to 2017 were all positive, showing a ‘√' type fluctuating upward trend of first decreasing and then increasing.(2)The ecological compensation zoning of the Three Gorges Reservoir Area was reconstructed into eight types, divided into four general compensation-receiving zones, 11 key compensation-receiving zones, 10 general payment zones and one key payment zone.(3)The total amount of ecological compensation in the Three Gorges Reservoir Area in 2010, 2012, 2014 and 2017 was RMB 2.026 billion, RMB 1.674 billion, RMB 2.117 billion and RMB 2.520 billion, respectively, showing an overall upward trend, with ecological compensation being dominated by compensation within the area, with compensation within the area accounting for over 80%. Conclusion] From 2010 to 2017, the carbon revenue and expenditure in the Three Gorges Reservoir area were positive and showed an upward trend. The study takes carbon revenue and expenditure as the basis, combines all-round and multi-faceted factors to construct an ecological compensation system, realizes ecological compensation zoning, and provides a quantitative basis for horizontal ecological compensation in each district and county of the study area, which is of great significance for promoting coordinated and sustainable regional development.