[1]何毓蓉,廖超林.长江上游侵蚀、滑坡和泥石流典型区土体特性及微形态学研究[J].山地学报,2006,(05):584.
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长江上游侵蚀、滑坡和泥石流典型区土体特性及微形态学研究()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2006年05期
页码:
584
栏目:
山地学报
出版日期:
2006-09-30

文章信息/Info

作者:
何毓蓉;廖超林;
中国科学院水利部成都山地灾害与环境研究所;中国科学院水利部成都山地灾害与环境研究所 四川成都610041;四川成都610041
关键词:
侵蚀滑坡泥石流土性土壤微形态长江上游
文献标志码:
A
摘要:
长江上游地区的侵蚀、滑坡和泥石流发生普遍而严重。选择典型区对侵蚀、滑坡和泥石流土体的微形态及与之紧密相关的土性进行比较研究,有重要意义。在贡嘎山东坡、川中丘陵盐亭、三峡库区云阳、云南东川蒋家沟分别采集代表性侵蚀、滑坡和泥石流土体剖面进行了研究。主要取得下述研究结果:(1)不同侵蚀强度的研究区土体特性有所不同,但共同特征是发育浅、颗粒粗、易分散等,有利于侵蚀形成;也相应形成一些侵蚀土体的微形态特征,如粗骨颗粒聚积状微形态、细土物质微区淋蚀现象、埋藏土层微形态特征等。(2)在滑坡土体,发现一些有利于滑坡形成的土体特性和微形态特征,如骨骼颗粒细化和蚀圆化、吸水性强的指纹状微结构等。在滑塌面上形成特殊...

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更新日期/Last Update: 2006-09-30