摘要
九龙县地处川西,受水电开发、道路修建和城市建设等人类活动影响,加之区域气候变化加剧,地质灾害复发和新发程度高。采用传统的地质灾害危险性评价方法的精度将难以达到可操作的程度。利用GIS空间分析和统计功能,结合数理统计中的信息量法,选取对区内生态地质环境影响巨大和易量化的因素作为评价因素,包括DEM、坡度、坡向、水系、道路、居民地、工程岩组,通过对应数据的收集、栅格化、叠加运算和修正,得到地质灾害危险性区划。
With the water power development, road construction, city building, and great change of regional climate, Jiulong located in the northwest of Sichuan Province suffers from geo-hazards. In order to cure and prevent geo-hazards, pepole must investigate and zone regional geo-hazards, and establish a scientific and effective group prevention system. If people use a traditional geo-hazard risk assessment method, they can＇t help government and dweller. In this paper, the authors use GIS spatial analyses and star. function, combined with information acquisition analysis; choose significant eco-geological factors, and collect data, digitalize data, operate data, correct results, finally, get a wonderful geo-hazard zoning results.
出处
《成都理工大学学报（自然科学版）》
CAS
CSCD
北大核心
2007年第2期180-184,共5页
Journal of Chengdu University of Technology: Science & Technology Edition
基金
四川省杰出青年学科带头人培养计划项目(06ZQ026-014)
四川省教育厅自然科学重点项目(2006A116)
首都师范大学资源环境与地理信息系统北京市重点实验室项目资助
