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.
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)
关键词
黄河源区
冻融地质作用
生态环境地质
Yellow River Source region
freeze-thaw geological process
eco-environmental geology
