甘肃省耕地资源转变为建设用地的价值损失评估

Assessment of Value Loss of Land Resource Converted From Farmland Into Construction Land in Gansu Province

依据耕地资源具有的社会保障功能、生态系统服务功能和经济产出功能,初步建立耕地资源的价值评估体系,综合运用市场价值法、替代法、机会成本法和影子价格法等评价方法,估算了甘肃省12个市(州)2007年耕地转变为建设用地所导致的正面效应价值损失。结果表明,由于建设用地占用耕地造成的价值损失相当巨大,2007年全省建设所占用耕地的总面积为1 564.66 hm2,造成的价值损失多达95 904.09万元,各市(州)1 hm2土地的损失都超过了45万元。从价值损失的构成来看,损失的直接使用价值为45 712.77万元,间接使用价值达50 191.32万元。可以看出,耕地资源除为社会提供直接产品价值外,还有巨大的间接使用价值,而且这种价值对人类的贡献比农产品的产出价值更为显著。

Arable land resources are not only the basis of human survival,but also the most important type of land use.In recent years,with the development of urbanization and industrialization,the phenomenon of alienation of arable land for construction has become more and more serious.Therefore,based on the functions（social security,ecological service and economic production） of the arable land resources,a value assessment system for arable lands was tentatively established.The system used comprehensively the market valuation method,substitution method,opportunity cost method and shadow pricing method to assess losses in the value of positive effects of the land resources after being converted from arable land into construction land in 12 cities of Gansu Province.Results show that the loss was great.A total of 1 564.66 hm2 of farmlands were converted into construction land in 2007,bringing about a loss in value of the land reaching 95 904.09×104 yuan or over 45×104 yuan per hm2 in all the 12 cities.From the structure of total value loss,the loss in direct use value was 45 712.77×104 yuan and in indirect use value 50 191.32×104 yuan.It is quite obvious that besides its value in providing produce directly to the society,the arable land resources have enormous indirect use values,which are more significant than the former in contribution to mankind.