【作者】 王孔忠； 廖福源； 葛送来；

【Author】 WANG Kong-zhong,LIAO Fu-yuan,GE Song-lai (Zhejiang Institute of Geological Survey,Zhejiang Hangzhou 311203,China)

【机构】 浙江省地质调查院；

【摘要】 作者依据FAO 5项评价标准和国内土地限制分类方法,采用主成份分析法选取排水条件限制、地形坡度限制、水土限制、安全限制4项指标,建立5级评估标准,以分区面积为权数,通过加权统计开采前、后的级差,计算出综合影响指数判定开采活动对土地资源的影响程度。尝试建立一套简易、直观、相对科学的评估方法——限制性因素动态定量评估方法。更多还原

【Abstract】 Based on the FAO evaluation criterion and land limited sort,the parameters,which include drainage condition,gradient condition,water and soil condition,and safety condition were analyzed by principal component analysis to set up a five-category evaluation criterion.We derive the integrated influence index,which can assess the influence degree of the exploitation for the land resource,through using the weighted statistics to the differences between the stages before and after the exploitation.We try to set up a simple,intuitionistic,and scientific evaluation method,which is named as limited factor dynamic quantitative evaluation method.更多还原