黑龙江地质环境特征与主要地质灾害

黑龙江省地域辽阔,地质环境条件复杂,受自然和人为因素的综合作用,产生了一系列地下水下降、地下水污染、地面沉降、采空塌陷、崩、滑、流及土地"三化"等环境地质问题。在哈尔滨市、大庆市形成了面积分别为380km2和5000km2地下水开采降落漏斗;在鸡西、鹤岗、双鸭山、七台河四个煤炭城市形成了551km2的采空塌陷区;在松嫩平原形成了面积573752.1hm2沙化区和386486.79hm2盐渍化区。

The characteristics of thegeological environment and geological disasters,Heilongjiang Province

Heilongjiang province is vast in territory and has complex geological environmental conditions,influenced by both natural and human factors,there produces a series phenomenons of water-table decline,undergroundwater pollution,ground subsidence,goaf subsidence,collapse,flow and the three land problems,say,desertization,salinization,and grassland degradation,and other geological problems.In Harbin,Daqing,there emerges groundwater depression cones respectively measures 380km2 and 5000km2.In the four coal cities of Jixi,Hegang,Shuangyashan,Qitaihe,the area of the goaf subsided reaches 551km2;and in Songnen Plain,there is a 5737521 hm2 desertification area and a 386486.79 hm2 salinization area.