| 基于MODIS数据的湟水流域植被覆盖变化研究 |
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| 引用本文： | 王兮之,粱钊雄.基于MODIS数据的湟水流域植被覆盖变化研究[J].干旱区资源与环境,2010(6). |
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| 作者姓名： | 王兮之 粱钊雄 |
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| 作者单位： | 佛山大学资源环境系; |
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| 摘 要： | 利用2001年～2008年250m分辨率的MODIS-NDVI数据,并结合湟水流域的地形特征数据,对流域内8年来植被覆盖变化动态进行分析。结果表明:近8年来湟水流域植被覆盖总体呈下降趋势;大通河流域以高植被覆盖区和较高植被覆盖区为主,湟水干流以高植被覆盖区、较高植被覆盖区和中度植被覆盖区为主;基于地形特征的湟水流域植被覆盖分布差异显著,脑山区以高植被覆盖区和较高植被覆盖区为主,浅山区以较高植被覆盖区和中度植被覆盖区为主,川水区以中度植被覆盖区和低植被覆盖区为主。
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| 关 键 词： | 植被覆盖 MODIS数据 湟水流域 |
Study on vegetation cover change in Huangshui watershed based on MODIS data from 2001 to 2008 |
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| WANG Xizhi,LIANG Zhaoxiong.Study on vegetation cover change in Huangshui watershed based on MODIS data from 2001 to 2008[J].Journal of Arid Land Resources and Environment,2010(6). |
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| Authors: | WANG Xizhi LIANG Zhaoxiong |
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| Institution: | Department of Resources and Environment;Foshan University;Foshan 528000;P. R. China |
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| Abstract: | Based on the 250m resolution of MODIS - NDVI data from 2001 to 2008,as well as combining with terrain data of Huangshui watershed,the characteristics of dynamic changes of vegetation cover were analyzed in the past 8 years in this paper. Results showed that vegetation cover was decreased in whole watershed in recent 8 years. Vegetation cover in Datonghe watershed was the highest,vegetation cover of Main Huangshui watershed was between the hight and middle. Because of the terrain feature the vegetation cover... |
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| Keywords: | vegetation coverage MODIS data Huangshui watershed |
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