摘要
应用基于GIS技术进行二次开发的CLRMIS(县域耕地资源管理信息系统)软件,以1:1万比例尺的土地利用现状图和土壤图叠加形成的图斑作为评价单元,选取成土母质、有机质、灌溉保证率等12个评价因子,合理确定各因子的权重,并运用层次分析法、模糊评价法等,对辽中县耕地地力进行了科学的评价,将耕地划分成5个等级。经实地调研,并对评价结果进行了分析,其结果符合当地实际情况。
CLRMIS （County Land Resources Management Information System ） software, re-developed based on GIS technology, is used to evaluate the fertility level of cultivated land in Liaozhong County. Twelve evaluation factors, including soil parent material, organic matter, guaranteed irrigation rate and others, are selected and the weights of factors rationally determined. The methods of AHP, fuzzy evaluation, and others are used to evaluate farmland grip of Liaozhong County. The results show that the total cultivated land could be divided into five levels. Local field investigation and analysis prove that the evaluation results agree with the local conditions.
出处
《国土资源科技管理》
2009年第4期11-15,共5页
Scientific and Technological Management of Land and Resources
基金
农业部财政专项--辽宁省耕地地力评价研究(200803028-01)
关键词
耕地地力
地力评价
资源管理
辽宁省
farmland fertility
assessment of farmland fertility
resource management
Liaoning Provinc
