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藏东高山峡谷地带地质灾害危险性评价——以西藏贡觉县为例

朱进守 邓辉 苑泉 沈娟 周瑾 靳洁

地质与资源2018,Vol.27Issue(3):272-278,7.
地质与资源2018,Vol.27Issue(3):272-278,7.

藏东高山峡谷地带地质灾害危险性评价——以西藏贡觉县为例

RISK ASSESSMENT ON THE GEOHAZARDS IN ALPINE AND GORGE REGION OF EASTERN TIBET: A Case Study of Gonjo County

朱进守 1邓辉 2苑泉 3沈娟 1周瑾 1靳洁1

作者信息

  • 1. 青海省地质调查局,青海西宁810001
  • 2. 国土资源部地学空间信息技术重点实验室(成都理工大学),四川成都610059
  • 3. 西藏地质调查院,西藏拉萨850000
  • 折叠

摘要

Abstract

The risk assessment is carried out based on the geohazard survey in Gonjo County of Tibet. Seven assessment factors, namely slope, historical geohazard density, engineering rock assemblage, linear structure density, vegetation coverage, drainage density and average annual rainfall, are optimized and grading standards are established according to the geological and geographical features. The GIS technology is used to collect and analyze spatial data for quantitative risk assessment. Combined with the principle of mathematical statistics, the spatial distribution of geohazards in the study area is revealed.

关键词

地质灾害/层次分析法/GIS/危险性评价/西藏

Key words

geohazard/analytic hierarchy process(AHP)/GIS/risk assessment/Tibet

分类

天文与地球科学

引用本文复制引用

朱进守,邓辉,苑泉,沈娟,周瑾,靳洁..藏东高山峡谷地带地质灾害危险性评价——以西藏贡觉县为例[J].地质与资源,2018,27(3):272-278,7.

基金项目

国家自然科学基金"川西藏区矿产资源开发的地质生态环境承载力研究"(编号40972225) (编号40972225)

国土资源部地学空间信息技术重点实验室开放基金"西南山区深切河谷地带生态地质环境承载力评价"(项目编号KLGSIT2016-06). (项目编号KLGSIT2016-06)

地质与资源

OACSTPCD

1671-1947

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