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基于采样、观测和统计数据,从耕地自然质量、经济质量和生态质量属性视角构建了耕地质量评价指标体系,运用隶属度函数、主成分分析、栅格采样和综合指数模型,对华北平原禹城市耕地质量进行了综合评价与分析.评价结果表明:2009年禹城市耕地自然质量、生态质量和经济质量分别以一、二、三等,二、三、四等和一、三、五等为主,且分别呈现耕地质量等级由中部、南部,中北、中南部和东部向周边区域降低的空间分异格局,区域耕地自然、生态和经济条件差异与耕地质量格局分异密切相关.
Based on the sampling, observation and statistical data, the index system of cultivated land quality evaluation was constructed from the perspectives of the natural quality, economic quality and ecological quality of cultivated land. Using the membership function, principal component analysis, raster sampling and comprehensive index model, The results of the evaluation showed that the natural quality, ecological quality and economic quality of cultivated land in Yucheng in 2009 are respectively dominated by one, two, three, two, three, four and one, three, five and so on The spatial heterogeneity of cultivated land quality in the central, southern, central, central, southern and eastern parts of China was decreased. The differences in the natural, ecological and economic conditions of cultivated land were closely related to the differentiation of cultivated land quality.