摘要
通过建立地质环境承载力评价方法和模型,分析了三层次16个影响因素对地质环境承载力的影响。结果表明,从对地质环境承载力权重指标上来看,地质环境、生态环境和社会环境的权重分别为0.7547、0.1509和0.0943。在地质环境中,地质构造、地层岩性和地质灾害对地质环境承载力影响的权重较大,分别为0.1217、0.1716和0.2470;在生态环境中,对地质环境承载力影响较大的因素包括土地利用类型和植被覆盖度,权重分别为0.0514和0.0399;在社会环境中,建筑密度、财产价值和人口密度的总排序权重分别为0.0134、0.0269和0.0539。通过地质承载力评价模型得到了影响地质环境承载力的16个因素的权重,并绘出了地质环境承载力评价分区图,结果有助于地质灾害防灾减灾工作的开展。
Through the establishment of evaluation method and model of geological environment bearing capacity,the influence of 16 influencing factors on geological environment bearing capacity at three levels was analyzed.The results showed that the weights of geological environment,ecological environment and social environment were 0.7547,0.1509 and 0.0943,respectively,from the perspective of weight of geological environment bearing capacity.In the geological environment,the weight of influence of geological structure,formation lithology and geological disaster on the bearing capacity of the geological environment was relatively major,which was 0.1217,0.1716 and 0.2470,respectively.In the ecological environment,the types of land use and vegetation coverage had a greater impact on the bearing capacity of the geological environment,with weight of 0.0514 and 0.0399,respectively.In the social environment,the total ranking weights of building density,property value and population density were 0.0134,0.0269 and 0.0539,respectively.Through the evaluation model of geological bearing capacity,the weights of 16 factors influencing the bearing capacity of geological environment were obtained,and the evaluation map of geological bearing capacity was drawn.This is helpful for the prevention and reduction of geological disasters.
作者
王松根
马海波
Wang Songgen;Ma Haibo(313 Geological Team of Anhui Geological and Mineral Exploration Bureau,Lu'an 237000,China)
出处
《甘肃科学学报》
2020年第3期121-124,145,共5页
Journal of Gansu Sciences
关键词
地质环境
承载力
地质灾害
评价模型
Geological environment
Bearing capacity
Geological hazards
Evaluation model
