基于农用地分等和土壤环境质量评价的耕地综合质量评价

    Cultivated land comprehensive quality evaluation based on agricultural land classification and soil environmental quality evaluation

    • 摘要: 该文从耕地生态管护的角度出发,探讨了如何实现土壤环境质量评价与农用地分等成果的融合。基于土壤环境质量评价和农用地分等的理论和方法,该文提出了耕地综合质量评估技术,即在农用地分等所建立的等级体系基础上,引入土壤环境质量评价系数概念,进一步利用该系数对农用地利用等指数进行修订,得到耕地综合评价指数,并以河南省洛阳市为例作了实证研究。根据洛阳市耕地质量综合评价结果,与原农用地利用等别相比,无污染的耕地综合等别保持不变,有污染倾向的耕地综合等别有所下降,存在污染的耕地等别降为末等。这些评价结果可以为土地利用管理、环境污染防治规划将提供更有效的依据。

       

      Abstract: To the aim of the ecological protection and management, the comprehensive quality evaluation method of cultivated land based on agricultural land classification and soil environmental quality evaluation was explored. Based on the classification index for the agricultural land classification, the concept for the compensation factor for the soil environmental quality evaluation was introduced. The cultivated land classification index was modified in terms of the above-mentioned results such that the comprehensive quality evaluation index could be obtained. Moreover, the method was illustrated by using the empirical study in Luoyang City, Henan Province. By comparing the cultivated land comprehensive quality evaluation with the previous agricultural land classification, it was found that the clean land classification left invariable, the pollution tendency land classification tended to decline, and the contaminated land classification reduced to the lowest grade. The evaluation method and results can be used for land utilization management and environmental pollution control programs.

       

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