【摘要】 耕地是人类生存必不可少的资源,开展耕地质量等别年度更新评价,可以全面掌握年度内耕地的现状变化及耕地质量等别的变化情况。为了实现耕地资源的持续合理利用,该文以庐江县为例,运用Arc GIS软件,通过增量包提取方法对庐江县2013—2014年的耕地增减变化以及耕地质量等别变化开展年度更新评价,并且在评价的基础上分析了其变化趋势,从而实现耕地保护工作由数量管理为主向数量与质量并重的转变。更多还原

【Abstract】 The soil is the essential resources for human survival,annual update of the quality evaluation of cultivatedland can fully grasp the status change of cultivated land and cultivated land quality variation. In order to realize thesustainable utilization of cultivated land resources,taking Lujiang County as an example,using Arc GIS software,thispaper carried out annual update evaluation through the method of incremental package extraction to investigate theincrease or decrease change of cultivated land from 2013 to 2014 and the changes of cultivated land quality,and ana-lyzed the changing trend on the basis of the evaluation,so as to realize the transformation of the cultivated land pro-tection from quantity management mainly to both quantity and quality.更多还原