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| 基于RS和GIS的丹巴县植被盖度与地质灾害关系研究 | |
| 引用本文： | 倪忠云,何政伟,赵银兵,赵勇,南希.基于RS和GIS的丹巴县植被盖度与地质灾害关系研究[J].物探化探计算技术,2011,33(2):217-221,110. |
| 作者姓名： | 倪忠云 何政伟 赵银兵 赵勇 南希 |
| 作者单位： | 1. 成都理工大学,地质灾害防治与地质环境保护国家重点实验室,成都,610059;成都理工大学地球科学学院,成都,610059 2. 成都理工大学,地质灾害防治与地质环境保护国家重点实验室,成都,610059;成都理工大学地球科学学院,成都,610059;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 3. 成都理工大学,地质灾害防治与地质环境保护国家重点实验室,成都,610059 |
| 基金项目： | 国家自然科学基金资助项目，国家科技支撑"十一五"计划项目，国家863重点项目 |
| 摘 要： | 植被盖度作为地表特征指数之一,其发育和分布特征受控于生态地质环境,而地质灾害又是生态地质环境不良作用的表现方式之一,二者存在一定联系。以地质灾害发育且危害严重的丹巴县为例,采用1999年和2006年二期卫星遥感数据,提取这二个时相的植被盖度图,以及1999年～2006年植被盖度变化图,采用地理信息系统技术,将地质灾害与二期的植被覆盖图进行叠加和统计分析。其结果表明,地质灾害主要分布在海拔较低,人类工程活动强烈的低植被覆盖和较低植被覆盖区域,且地质灾害在植被覆盖度减少的区域较之植被盖度不变和增加的区域,更加容易突发,研究结果与区内其它地质灾害工作成果吻合。 |
| 关 键 词： | 归一化植被指数 密度分割 生态地质环境 叠加分析 丹巴县 |
Study on the relationship between vegetation cover and geo-hazards in Danba county based on RS and GIS |
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| NI Zhong-yun,HE Zheng-wei,ZHAO Yin-bing,et al..Study on the relationship between vegetation cover and geo-hazards in Danba county based on RS and GIS[J].Computing Techniques For Geophysical and Geochemical Exploration,2011,33(2):217-221,110. | |
| Authors: | NI Zhong-yun HE Zheng-wei ZHAO Yin-bing |
| Institution: | NI Zhong-yun1,2,HE Zheng-wei1,3,ZHAO Yin-bing1,et al. ( 1. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu 610059,China,2. Geosciences College,Chengdu University of Technology,3.Key Laboratory of Resource Environment and GIS in Beijing,Capital Normal University,Beijing 100037,China ). |
| Abstract: | Vegetation cover is one of Earth's surface characteristics, and its development and distribution is controlled by eco-geological environment. Geo-hazard is one of adverse effects of eco-geological environment, thus there is a certain link between vegetation cover and geo-hazards. Taking Danba County as an example where there are serious geo-hazards, by collecting satellite remote sensing data in 1999 and 2006, extracting vegetation cover information and vegetation cover map between 1999 and 2006, and using ... |
| Keywords: | normalized difference vegetation index density segmentation eco-geological environment overlay analysis danba county |
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