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研究影响耕地细碎化各因素的关系与影响程度,对农用地整治和制定耕地政策提供依据.建立耕地细碎化指数,选取地块分散度、规模、形状、通达度、密度和边界密度6项因素计算指标,以大河涧乡潘家荒村为研究区域,计算指标分值并标准化,然后计算耕地细碎化指数,并对该指数进行灵敏度分析.研究结果表明:(1)根据所建立的耕地细碎化计算模型所求得的总耕地细碎化指数,综合考虑耕地细碎化的6个核心影响因素,具有一定全面性和灵活性;(2)地块分散度、地块规模、地块密度在建立的4个分级中影响程度较高,说明这3个计算指标对耕地细碎化的影响程度较强;(3)地块分散度、地块形状和地块密度对权重的改变反应较为明显,而地块通达度几乎不受权重影响,地块分散度、地块形状和地块密度3项指标在耕地细碎化中影响程度最高.
To study the relationship and impact degree of various factors affecting cultivated land fragmentation, and to provide basis for farmland remediation and formulation of cultivated land policy.Considering the fragmentation index of cultivated land, six factors including plots dispersion, size, shape, accessibility, density and boundary density The index was calculated and standardized, and then the fragmentation index of cultivated land was calculated and the sensitivity analysis of the index was carried out.The results showed that: (1) According to the established fragmentation of cultivated land Computation of the total cultivated land fragmentation index calculated by the model, comprehensively considering the six core influencing factors of the fine grazing of cultivated land, has a certain comprehensiveness and flexibility; (2) the dispersion of the plots, the size of the plots and the density of the plots The higher the degree of influence among the four grading, indicating that these three indicators have a stronger impact on the fragmentation of cultivated land; (3) The dispersion of land plots, the shape of plots and the density of plots respond more obviously to the change of weights, The block accessibility is almost unaffected by the weights. The three indexes of plots dispersion, plot shape and plot density have the highest influence on the fragmentation of cultivated land.