| 贵阳饮用水源地土地覆被（LandCover）格局分析 |
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| 引用本文： | 高喜明,彭钟山.贵阳饮用水源地土地覆被（LandCover）格局分析[J].贵阳金筑大学学报,2011(2):31-34. |
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| 作者姓名： | 高喜明 彭钟山 |
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| 作者单位： | 贵阳学院生物与环境工程系,贵州贵阳550005 |
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| 基金项目： | 贵阳学院基金资助项目（200815） |
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| 摘 要： | 在遥感与地理信息系统的支持下，从2004年的中巴资源卫星影像中提取贵阳水源地三大水库水源涵养地作为研究区域，采用景观指数法进行水源地土地覆被格局现状研究。结果表明：以三大水库为中心的水源涵养地总面积为127584．63hm；旱地、水田和建设用地三种受人类生产活动影响严重的用地类型占研究总面积的59．91％，而林地和灌草地占33．71％，若单独考虑林地，则仅占总面积的22．60％，斑块大小上仅具有相对较大的，平均斑块面积为4．49hm；旱地具有最高优势度，是人类生产活动导致大斑块耕作所致；综上所述，林地保护和质量提升具有一定难度；灌草地破碎化严重，斑块数量多，平均斑块面积不大，可以考虑对灌草地的林地化改造，部分实现原有林地的连接，扩大林地面积。
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| 关 键 词： | 景观格局 土地覆被 水源地 贵阳 |
Analysis on the Land Cover Spatial Pattern of Drinking Water Source Site in Guiyang City |
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| Institution: | GAO Xi - ming, PENG Zhong -shan (Dept. of Biology and Environment Engineering, Gniyang University, Guiyang 550005, China) |
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| Abstract: | Based on geography information system （GIS） and remote sensing （RS） techniques, land cover information of the drinking water source site of Guiyang in 2004 was interpreted using the CBERS digital images. Some major landscape indices were selected to analyze the landscape pattern. The results showed that catchment area is 127584. 63hm; the land use type of forest, dryland, paddy field had obvious advantage area over the others and the forest area is 28828.44hm, accounting for 22. 60%. The highest dominance index belongs to the dryland; the fragmentation degree of the shrub was higher. It could be concluded that ecological environment was negatively influenced by different degree of agricultural production and urban construction. |
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| Keywords: | landscape pattern the land cover drinking water source site of Guiyang |
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