【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,确定各因子的权重,并且运用层次分析法、模糊评价法等,对大洼县耕地地力进行了评价,将大洼县耕地划分成五个等级。经实地调查分析,并对评价结果进行了分析,其结果符合当地实际情况。更多还原

【Abstract】 This CLRMIS software(County Land Resources Management Information System) was used to evaluate the fertility level of cultivated land in Dawa area.12 evaluation factors including soil parent material,organic matter,guaranteed irrigation rate and others were selected and the weights of factors were rationally determined.These methods of AHP,fuzzy evaluation,and others were used to evaluate farmland grip of Dawa County.The results showed that the total cultivated lands could be divided into five levels.According to the local field investigation and analysis,the evaluation results were in accordance with the local situation.更多还原