| 基于表观反射率的渭-库绿洲植被动态变化分析 |
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| 引用本文： | 罗江燕,塔西甫拉提&,#,特依拜,陈金奎.基于表观反射率的渭-库绿洲植被动态变化分析[J].水土保持研究,2008,15(5):65-67. |
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| 作者姓名： | 罗江燕 塔西甫拉提& # 特依拜 陈金奎 |
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| 作者单位： | 1. 新疆大学 资源与环境科学学院, 乌鲁木齐 830046;2. 济南市市政工程设计研究院新疆分院, 乌鲁木齐 830046 |
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| 摘 要： | 使用TM、ETM+图像为基础资料，在求得两者表观反射率的基础上，计算归一化植被指数（NDVI），结合当地情况对所求得NDVI分成不同量级，分析各不同量级的变化情况从而反映当地的植被动态变化。结果表明:在0.2~0.3，0.3~0.4和0.5~0.8三个灰度级区间两期图像的植被变化情况比较明显。通过对比两期图像灰度级变化，为该区域生态环境综合治理提供新的研究方法。
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| 关 键 词： | 渭干河 表观反射率 NDVI 盖度级 |
Analysis on Dynamic Change of Wei-ku Oasis Vegetation Based on Surface Reflectance |
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| LUO Jiang-yan,Tashpolat&,#,Tiyip,Chen Jin-kui.Analysis on Dynamic Change of Wei-ku Oasis Vegetation Based on Surface Reflectance[J].Research of Soil and Water Conservation,2008,15(5):65-67. |
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| Authors: | LUO Jiang-yan Tashpolat& # Tiyip Chen Jin-kui |
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| Institution: | 1. College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China;2. Ji’nan Municipal Engineering Design & Research Institute, Urumqi 830046, China |
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| Abstract: | According to Landsat TM image of 1989 and Landsat ETM+ image of 2001 in the Delta Oasis of Weigan rivers and kuche rivers, which is located in the north of Taklamakan Desert, this paper calculated the surface reflectance, then worked out the NDVI on the basic of it, and integrated the local situation classified the NDVI into five ranks. Analyzing these changes of the different ranks, from this can reflect local vegetable dynamic change. This paper pointed out that these changes of Wei-ku oasis is controlled by two important reasons which are severe influences of nature and humanity. Therefore, local government should pay attention to these phenomena, and adapt new and good methods to develop social economy. |
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| Keywords: | Weigan Rivers surface reflectance NDVI cover grade |
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