【摘要】 以山西省闻喜县为例, 运用GIS技术建立了闻喜县耕地资源数据库系统。耕地地力评价单元通过叠加土地利用现状图、基本农田保护区规划图和土壤图所形成的图斑组成。针对闻喜县的实际情况, 筛选出15项指标进行评价。用15项耕地地力评价指标计算每一个评价单元的综合评价指数, 以该指数作为耕地地力评价依据, 并针对耕地的不同等级所存在的障碍因素提出了相应的建议, 为耕地地力建设与土壤改良利用提供了依据。更多还原

【Abstract】 The farmland resource database system of Wenxi in Shanxi Province was established based on the GIS technology. The evaluation section of the spatial database consisted of the overlayed patches the current land use map and the basic farmland protection map and the soil map. Aimed at the actual conditions of Wenxi, the 15 indexes were chosen for evaluation of farmland productivity. The 15 indexes were used to calculate the comprehensive evaluation index of each cell, which could be used as a basis for evaluation of farmland quality.更多还原