安徽省耕地资源利用的生态社会效益计算方法及其应用

目的]计算安徽省耕地资源利用生态社会效益,为制定合理的耕地保护经济补偿标准提供依据。方法]以安徽省2000,2005和2010年数据为基础,利用当量因子法、影子价格法等方法计算了历年单位面积耕地生态社会效益理论值,采用社会发展阶段系数对不同等级耕地生态社会效益现实值进行了计算。结果]2000,2005和2010年安徽省耕地资源利用生态社会效益理论值分别为25 032.31,34 879.15,43 700.38元/hm2,生态效益比重从2000年的15.53%上升到2010年的21.10%,而社会效益则从84.47%下降到79.90%。2005年低等、中等、高等优质耕地单位面积生态社会效益现实值分别为7 219.69,11 130.42和18 039.25元/hm2。结论]单位面积耕地生态社会效益理论值和现实值有较大的差距,因此在制定单位面积耕地的生态社会效益补偿标准时,要充分考虑经济社会发展、区域耕地质量等级以及该区域人们支付意愿。

Calculating Method of Ecological and Social Benefits from Cultivated Land Resource and Its Application in Anhui Province

Objective] Calculation of ecological and social benefits of cultivated land resource utilization can provide reliable basis for the standard economic compensation at the expense of land protection. Methods] Based on the data of 2000, 2005 and 2010, this paper calculated the theoretical ecological and social benefits using the methods of equivalent factor method and shadow price. The realistic ecological and social values of the cultivated lands were amended by social developmental phase coefficient of different grades of the cultivated lands. Results] The results showed that the theoretical value of ecological and social benefits per hectare were 25 032.31 RMB in 2000, 34 879.15 RMB in 2005, 43 700.38 RMB in 2010, respectively. In which proportion of social benefit increased from 15.53 % in 2000 to 21.10% in 2010, while the proportion of social benefit decreased from 84.47% in 2000 to 79.90% in 2010.The low, medium and high qualities of cultivated lands had realistic values per hectare of ecological and social benefit were 7 219.69, 1 1130.42 and 18 039.25 RMB in 2005, respectively. Conclusion] There exists a gap between the real ecological and social benefit of unit area of arable land and the theoretical value. Whereas, the formulation of compensation standard of ecological social benefit from per unit area of arable land should comprehensively consider the economic and social development, the quality grade of regional cultivated land and the local people's willingness to pay.