基于证据权法的赣南稀土矿山地质环境评价

被引:21
作者
马伟 [1 ,2 ]
徐素宁 [3 ]
王润生 [4 ]
赵珍梅 [2 ]
文元亮 [2 ]
机构
[1] 中国地质大学(北京)
[2] 中国冶金地质总局矿产资源研究院
[3] 中国地质环境监测院
[4] 中国国土资源航空物探遥感中心
关键词
证据权法; GIS; 矿山地质环境; 评价;
D O I
暂无
中图分类号
TD167 [矿山环境地质]; X141 [环境地质学];
学科分类号
0819 ; 083001 ;
摘要
为了解决矿山地质环境评价研究中指标权值计算和评价分级具有较大主观性的问题,本文发展了一种基于证据权法的矿山地质环境评价模式,利用GIS的空间分析功能,提取矿产开发活动、坡度、坡向、高程、构造、植被覆盖度6类地质环境评价指标,运用证据权法计算指标权值。结合条件独立性检验结果,优选评价指标并计算后验概率。采用后验概率面积频率法对赣南稀土矿山地质环境进行综合评价分级。结果表明,研究区内地质环境差区域主要分布在其东南部和西部;矿产开发活动是影响研究区内地质环境质量最主要的因素。采用效率曲线法对模型验证,正确率和预测率分别为90.1%和89.5%。证据权法能够有效避免主观因素干扰,评价结果客观,具有可重现性,适用于矿山地质环境质量评价。
引用
收藏
页码:103 / 110
页数:8
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