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| 基于GIS的喀斯特高原山区石漠化景观格局变化分析 | |
| 引用本文： | 张盼盼,胡远满,李秀珍,肖笃宁,殷 洁,李阳兵.基于GIS的喀斯特高原山区石漠化景观格局变化分析[J].农业工程学报,2009,25(12):306-311. |
| 作者姓名： | 张盼盼 胡远满 李秀珍 肖笃宁 殷 洁 李阳兵 |
| 作者单位： | 1. 中国科学院沈阳应用生态研究所,沈阳,110016;中国科学院研究生院,北京,100049 2. 中国科学院沈阳应用生态研究所,沈阳,110016 3. 贵州师范大学地理与生物科学学院,贵阳,550001 |
| 基金项目： | 国家重点基础研究发展计划973计划课题（编号：2006CB403201） |
| 摘 要： | 石漠化是广泛存在于中国西南地区的一种生态-地质灾害，目前已成为备受关注的研究热点和难点。为了解喀斯特高原山区石漠化景观的时空变化，以贵州省普定县南部的典型喀斯特高原山区后寨河流域为例，以3期遥感影像（1987年和1995年的TM影像与2004年的SPOT-5影像）作为数据源，借助于ArcGIS9.0等软件和数理统计分析方法，从石漠化强度分级的角度对近18 a来石漠化的动态变化进行了研究。结果表明：从整体上来看，整个流域的石漠化出现扩展的趋势，其中前期（1987－1995年）的扩展速度为6.55 hm2/a，后期（1995－2004年）的扩展速度为29.64 hm2/a，扩展速度呈现增加的趋势。其中，轻度石漠化的面积呈现出先减少后增加的趋势；而中度石漠化和强度石漠化的面积均呈现出逐渐增加的趋势。 |
| 关 键 词： | 地理信息系统，土地利用，遥感，喀斯特高原山区，石漠化，景观格局变化 |
| 收稿时间： | 9/6/2009 12:00:00 AM |
| 修稿时间： | 2009/11/19 0:00:00 |
Analysis of rocky desertification landscape pattern change in Karst plateau area based on GIS |
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| Zhang Panpan,Hu Yuanman,Li Xiuzhen,Xiao Duning,Yin Jie and Li Yangbing.Analysis of rocky desertification landscape pattern change in Karst plateau area based on GIS[J].Transactions of the Chinese Society of Agricultural Engineering,2009,25(12):306-311. | |
| Authors: | Zhang Panpan Hu Yuanman Li Xiuzhen Xiao Duning Yin Jie and Li Yangbing |
| Institution: | 1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; 2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China; 3. School of Geography and Biology, Guizhou Normal University, Guiyang 550001, China,1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China,1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China,1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China,1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; 2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China; 3. School of Geography and Biology, Guizhou Normal University, Guiyang 550001, China and 3. School of Geography and Biology, Guizhou Normal University, Guiyang 550001, China |
| Abstract: | As one of the most serious geo-ecological disasters in Karst areas in Southwestern China, rocky desertification has become one of the key and difficult research issues. Taking the Houzhaihe Valley in Puding County, Guizhou Province, Southwestern China as an example, the landscape pattern changes of Karst rocky desertification in the recent 18 years in Karst plateau area were studied from the perspective of different rocky desertification levels, based on 3 series of remote sensing images (TM images of 1987 and 1995 and SPOT-5 image of 2004), and applying GIS technique and statistics analysis methods. Results indicated that, as a whole landscape, the intensity and rate of rocky desertification land were increasing in the recent 18 years. The increasing rate of rocky desertification were 6.55 hm2/a from 1987 to 1995, and 29.64 hm2/a from 1995 to 2004. Different rocky desertification levels had shown different change tendencies. The area of light rocky desertification land reduced at first (from 1987 to 1995) and then increased (from 1995 to 2004), while the area of moderate and severe rocky desertification land increased continuously from 1987 to 2004. |
| Keywords: | geographic information systems land use remote sensing Karst plateau mountain rocky desertification landscape pattern change |
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