摘要
溜砂坡是一种特殊的坡面堆积形式,主要发生在较为干旱的花岗岩山区,因其稳定性差,溜砂坡活动较为频繁,成为山区公路的重要灾害之一。以川藏公路然乌—中坝段为研究区,对溜砂坡的地貌形态和植被特征及其遥感影象特征进行了初步分析,确定了溜砂坡的遥感解译标志,并分析了溜砂坡和滑坡在遥感图像上的区别。将溜砂坡的遥感解译方法应用到川藏公路然乌—中坝段,查清了该路段的溜砂坡分布及其危害。
Sliding sand slope is a special slope accumulation which is normally distributed in granitic mountains. Sliding sand slope becomes one of the mainly disasters for highway because the activity of sliding sand slope is frequent for the instability of the slope. The topographical features, vegetation characteristics and their image characters are analyzed. The identifications of interpretation of sliding sand slopes is designed based on the image characters. The differences of sliding sand slopes and landslides on the image are analyzed. As a case study, the method of interpretation of sliding sand slope by remote sensing is applied in the section of RanwuZhongba in SichuanTibet Highway.
出处
《自然灾害学报》
CSCD
北大核心
2002年第4期124-128,共5页
Journal of Natural Disasters
基金
中国科学院知识创新工程项目(KZCX2-306)
