[1]白世彪,闾国年,盛业华,等.基于GIS的长江三峡库区滑坡影响因子分析[J].山地学报,2005,(01):63.
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基于GIS的长江三峡库区滑坡影响因子分析()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2005年01期
页码:
63
栏目:
山地学报
出版日期:
2005-02-28

文章信息/Info

作者:
白世彪;闾国年;盛业华;杨一鹏
南京师范大学地理信息科学江苏省重点实验室;南京师范大学地理信息科学江苏省重点实验室;南京师范大学地理信息科学江苏省重点实验室;南京师范大学地理信息科学江苏省重点实验室 江苏南京 210097 ;江苏南京 210097 ;江苏南京 210097 ;江苏南京 210097
关键词:
三峡库区滑坡GIS影响因子统计分析
文献标志码:
A
摘要:
利用GIS技术和统计方法,对三峡库区选定的研究区域(面积4539km2)滑坡空间分布和地形、地质等滑坡内部因子之间相关性进行统计计算。在建立地质、地形数据库等滑坡因子空间数据库和滑坡空间分布数据库(数据比例尺均为1∶10000)基础上,从地形数据库提取25m分辨率DEM,再派生出高程、高差、坡度、坡向、平面曲率、剖面曲率等地形影响因子;从地质数据库提取地层和岩性组合影响因子。将各个定性的因子按一定规则进行重分类、转换为25m分辨率的栅格数据格式,在GIS中进行地图代数运算、统计计算滑坡和各影响因子相关性。结果表明,滑坡分布和Q4、J1x,J1z、S岩性岩组;90m以下、90~135m和135~...

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更新日期/Last Update: 2005-02-28