摘要
本文详尽叙述了新疆干旱区突发性较强的地震、崩塌、滑坡、泥石流灾害以及具牵延性特点的土地沙漠化、盐渍化、水土流失等为主要类型地质灾害的活动规律和时空分布特征;根据灾害强度,进行了灾害等级区域划分;结合新疆干旱区特点,提出了减轻新疆地质灾害的主要对策和措施。
There are two types of geological hazards which cause serious damages every year in Xinjiang arid region. One bursts out abruptly and the geomorphological processes change rapidly, such as collapse, landslide, debris flow and earthquake; the other changes slowly,but is very serious and the damage is larger,such as desertization,salifi-cation and soil erosion in Xinjiang arid region. The former type is distributed in middle and low mountain area and 70% of this kind of geological hazards are concentrated in Tianshan Mountains, but the desertization in Tarim Basin and salification in Zhungr Basin. The active period of geological hazard is summer which is closely related to the weather conditions (rainstorm and temperature).
The disaster zoning was first divided into three degrees,that is degree 1(serious) hazard zone,degree 2(in middle)hazard zone and degree 3(weak)hazard zone,according to the intensity of hazard and economic development level of Xinjiang.
Reducing geological disaster measures in Xinjiang arid region were forwarded. The main measures concern prevention measure,engineering measure,biological measure and management measure.
出处
《海洋地质与第四纪地质》
CAS
CSCD
北大核心
1995年第3期121-128,共8页
Marine Geology & Quaternary Geology
基金
新疆维吾尔自治区科学研究项目
关键词
地质灾害
灾害分布
减灾措施
干旱区
新疆
geological hazard distribution of hazard disaster zoning reduction of disaster
