陕西省关中渭河平原区耕地质量评价指标体系构建

Construction of evaluation index system of cultivated land quality of Guanzhong Weihe Plain in Shaanxi Province

通过研究新时代耕地质量内涵,剖析已有规程标准、研究成果建立的评价指标体系存在问题,在此基础上以完善耕地保护政策为目标指导,耕地精细化管理需求为结果导向,新时代耕地质量内涵为出发点,既吸收现有指标体系精华,同时结合区域实际的指标体系建立标准,构建土壤质量、管护质量、利用质量和生态质量4项准则层、13项指标层的陕西省关中渭河平原区耕地质量评价指标体系,并确定准则层土壤质量权重为0.4,管护质量权重为0.3,利用质量权重为0.2,生态质量权重为0.1和各评价指标权重、指标分级值及因素参考分,以期为陕西省粮食主产区乃至全国耕地质量评价提供新思路、新方法。

By studying the connotation of cultivated land quality in the new era,this paper analyzes the problems in the existing evaluation index system established by regulations,standards,and research results.On this basis,the cultivated land protection policy is improved as guidance.The demand for fine management of cultivated land is the result orientation,and the connotation of cultivated land quality in the new era serves as the starting point.The newly proposed system combines the essence of the existing index system and real-life local situations.The evaluation index system of cultivated land quality of Guanzhong Weihe Plain in Shaanxi Province includes 4 criterion layers,which are soil quality,management and protection quality,utilization quality,and ecological quality,and 13 index layers.The weight of soil quality in the standard layer is 0.4,the weight of management and protection quality is 0.3,the weight of utilization quality is 0.2,and the weight of ecological quality is 0.1.The weight of each evaluation index,index grading value,and factor reference score are determined,providing new ideas and methods for the quality evaluation of main grain producing areas in Shaanxi Province and even the whole country.