| 基于3S的花江喀斯特峡谷区石漠化变化趋势 |
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| 引用本文： | 陈起伟,兰安军,熊康宁.基于3S的花江喀斯特峡谷区石漠化变化趋势[J].贵州师范大学学报(自然科学版),2005,23(3):32-37. |
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| 作者姓名： | 陈起伟 兰安军 熊康宁 |
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| 作者单位： | 贵州教育学院,地理系,贵州,贵阳,550003;贵州师范大学,地理与生物科学学院,贵州,贵阳,550001 |
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| 基金项目： | 国家“十五”攻关资助项目（2001BA606A-09-05）;贵州省教育厅自然科学研究项目（黔教科2003208） |
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| 摘 要： | 选取典型的喀斯特峡谷区为研究对象,该地区由于人们不能合理利用喀斯特地区,以及自然环境的原因,造成水土流失较为严重,石漠化发育强烈。应用基于光谱特征的信息提取方法,提取出研究区各时段的石漠化信息图,通过叠加、对比分析,以及对研究区的实地考察,分析整个研究区石漠化的变化情况。研究表明,整个地区的石漠化状况有明显的改善,但是在部分区域,由于工程建设等原因,仍存在石漠化程度加重的现象。
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| 关 键 词： | 喀斯特 石漠化 变化趋势 |
| 文章编号： | 1004-5570（2005）03-9032-06 |
| 收稿时间： | 2004-10-29 |
| 修稿时间： | 2004年10月29 |
A study based on 3S analysis for the alteration tendency of rock-desertification in karst area of Huajiang gorge |
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| CHEN Qi-wei,LAN An-jun,XIONG Kang-ning.A study based on 3S analysis for the alteration tendency of rock-desertification in karst area of Huajiang gorge[J].Journal of Guizhou Normal University(Natural Sciences),2005,23(3):32-37. |
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| Authors: | CHEN Qi-wei LAN An-jun XIONG Kang-ning |
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| Abstract: | The typical karst gorge area is selected as a research object. Because people in this area can not reasonably make use of the landform and the natural environment, soil erosion is serious and rock-desertification development is intense. Using the spectral feature -based model for extracting rock -desertification information, spatial distributions of rock - desertification in each period of time are mapped. By means of superimposition, comparative analysis, along with field survey, we analyse the rock - desertification alteration in the entire research area. The conclusion shows that the entire area of rock- desertification has obviously been improved. However,owing to construction and other reasons, rock - desertification degree in parts of the area becomes more and more serious. |
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| Keywords: | karst rock - desertification alteration tendency |
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