基于限制因素和热点分析的耕地整治质量潜力测算

发布时间：2018-03-25 18:25

本文选题：耕地整治　切入点：质量潜力　出处：《农业机械学报》2017年02期

【摘要】：以规则网格为评价单元,采用因素组合法对耕地自然质量限制因素进行分析;采用热点分析法对耕地利用水平指标进行局部聚类;并分别测算限制因素改变和利用水平指标提升后的耕地质量变化。以河北省涿州市为研究区进行研究,结果表明:灌溉保证率是涿州市耕地自然质量的限制因素,经改善灌溉条件的耕地自然等指数可平均提升408。涿州市耕地整体利用水平相差较大,可依据热点分析结果提出相应的耕地平整、修建沟渠或田间道路等工程措施,改善土地利用条件,提高耕地利用等指数。综合整治潜力呈现东西低、中部高的分布特点。所提出的耕地整治质量潜力测算方法有助于确定耕地质量限制因素、划分耕地整治区域及指明整治方向。
[Abstract]:Taking regular grid as the evaluation unit, the factor combination method is used to analyze the factors limiting the natural quality of cultivated land, and the hot spot analysis method is used to cluster the cultivated land utilization level index locally. The results show that irrigation guarantee rate is the limiting factor of the natural quality of cultivated land in Zhuozhou City, Hebei Province, and the change of cultivated land quality after the change of limiting factors and the improvement of utilization level index are calculated separately, the results show that irrigation guarantee rate is the limiting factor of natural quality of cultivated land in Zhuozhou City. The natural index of cultivated land after improving irrigation conditions can be increased by 408.The overall utilization level of cultivated land in Zhuozhou is quite different, and corresponding engineering measures, such as leveling cultivated land, constructing ditches or field roads, can be put forward according to the results of hot spot analysis. Improvement of land use conditions, improvement of cultivated land use index and so on. Comprehensive remediation potential is characterized by low distribution in east and west and high in central part. The method of measuring cultivated land quality potential is helpful to determine the limiting factors of cultivated land quality. Divide cultivated land regulation area and point out regulation direction.
【作者单位】：中国农业大学信息与电气工程学院;国土资源部农用地质量与监控重点实验室;
【分类号】：F301.21

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