[1]蔡柯柯,何政伟,倪忠云,等.基于RS和GIS的彭州市震毁土地信息提取及分析[J].水土保持研究,2010,17(04):43-45,51.
　CAI Ke-ke,HE Zheng-wei,NI Zhong-yun,et al.Extraction and Analysis of Destroyed Land Information of Pengzhou Based on RS and GIS[J].Research of Soil and Water Conservation,2010,17(04):43-45,51.
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基于RS和GIS的彭州市震毁土地信息提取及分析

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 17 期数: 2010年04期 页码: 43-45,51 栏目: 出版日期: 2010-08-20
Title:
Extraction and Analysis of Destroyed Land Information of Pengzhou Based on RS and GIS
作者:
蔡柯柯1,2, 何政伟1,2,3, 倪忠云1,2, 高慧1,2, 王乐1,2
1. 地质灾害防治与地质环境保护国家重点实验室, 成都 610059;
2. 成都理工大学 地球科学学院, 成都 610059;
3. 首都师范大学 资源环境与地理信息系统北京市重点实验室, 北京 100037
Author(s):
CAI Ke-ke1,2, HE Zheng-wei1,2,3, NI Zhong-yun1,2, GAO Hui1,2, WANG Le1,2
1. State Key Laboratory of Geohazard Prevention & Geoenvironment Protection, Chengdu 610059, China;
2. College of Earth Sciences, Chengdu Univerdity of Technology, Chengdu 610059, China;
3. Key Labortory of Resource Environment and GIS, Beijing Normal University, Beijing 100037, China
关键词:
汶川地震; 灾毁; 高程; 坡度; 坡向
Keywords:
Wenchuan Eearthquake; disaster-destroyed land; elevation; slope; aspect
分类号:
TP79;P316
摘要:
以“5·12”地震前后的TM影像为数据源，根据研究区特殊的地貌特征和灾毁分布特征，采用分区处理的方法，提取了地震前后彭州市土地利用图。彭州市灾毁面积达200.53km2，占彭州市总面积的14%。提出以R（4）G（2）B（7）波段组合的影像图来区分河流与灾毁，可以大大提高灾毁提取的精度与速度。将灾毁信息与高程数据、坡度数据、坡向数据进行叠加分析，得出：灾毁与高程成正相关；随着坡度的增加，灾毁比例先增后减，灾毁最严重的坡度为35°~55°；西—西南向灾毁比例相对较高，东—东南向灾毁比例较低。
Abstract:
Basing on TM images,according to the special topographical features and distribution characteristics of the disaster in study area,this paper divided research areas into several parts,extracted land-use maps of Pengzhou city before and after‘5·12’earthquake by zoning processing method.The disaster area of Pengzhou city is 200.53km2,occupying 14% of the total area.Images with R (4) G (2) B (7) band combination for distinguishing rivers and disaster,can greatly improve the speed and accuracy of extracting disaster.Overlay analysis disaster information with elevation data,gradient data,and aspect data showed that the relationship between disaster and elevation was positive correlation,disaster percentage first increased and then decreased.Along with the increase of slope,the most serious disasters happened on the slope of 35°～55°.West-southwest disaster percentage was relative higher,and that of east-southeast was the lowest.

参考文献/References:

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备注/Memo

收稿日期:2010-1-19;
基金项目:国家科技支撑“十一五”计划（2008BAK49B02）;国家“863”重点项目（2007AA120306）
作者简介:蔡柯柯（1985- ），女，宁夏石嘴山人，硕士研究生，主要从事生态遥感及GIS应用研究。E-mail：345789102@qq.com
通讯作者:何政伟（1966- ），男，四川南部县人，博士，教授，博士生导师，主要从事遥感地质学、生态地理信息系统和生态环境地质等教学科研。E-mail：hzw@cdut.edu.cn

更新日期/Last Update: 1900-01-01