黄河源区冻融地质作用及其生态环境地质特征  

GEOLOGICAL CHARACTERISTICS OF FREEZE-THAW PROCESS AND ECO-ENVIRONMENTAL GEOLOGY OF THE YELLOW RIVER SOURCE REGION

作　　者：杨科元 童海奎[2] 

机构地区：[1]甘肃省地矿局水文地质工程地质勘察院,甘肃张掖734000 [2]青海省国土资源厅,青海西宁810001

出　　处：《甘肃地质》2010年第1期64-66,共3页Gansu Geology

基　　金：中国地质调查局"黄河源区1:25万生态环境地质调查"项目(19991230004121)

摘　　要：黄河源区自然地理环境特殊,冻融地质作用强烈,冻融地质现象普遍发育,以山地顶部裸岩、寒冻风化岩屑坡、山地斜坡冻融滑移、山前倾斜平原及河谷平原冻胀—融陷作用为表征,对应于源区不同的地形地貌条件和自然地理单元,呈鲜明的山地垂直分带规律和冻融荒漠化生态景观。In the Yellow River source region, special natural and geographical environment, strong geological action of freeze-thaw, widespread freezing and thawing of geological development, using the characterization of mountain top of the bare rock, frost weathering of debris slopes, freeze-thaw slip of mountain slopes, piedmont plains and river plain tilt frost heave-the role of financial settlement, source area corresponding to the different landscape conditions and physical geography units, showed a distinct vertical zoning laws and mountain freezethaw desertification landscape.

关 键 词：黄河源区 冻融地质作用 生态环境地质 

分 类 号：X141[环境科学与工程—环境科学]