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宁夏盐池植被覆盖动态变化遥感监测

The Dynamic Change of Vegetation Coverage in the Yanchi County Monitoring Based on Remote Sensing

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【Author】 QIAO Feng~1,ZHANG Shengying~2,ZHANG Kebin~1, YANG Junjie~1,LI Rui~1,LIU Gang~1(1.College of Soil and Water Conservation,Beijing Forestry University,Beijing 100083,China;2.Yanchi Mechanization Forest Farm,Yanchi,Ningxia 751500,China)

【机构】北京林业大学水土保持学院；盐池机械化林场；北京林业大学水土保持学院北京100083；宁夏盐池751500；北京100083；

【摘要】基于NDVI和植被覆盖度像元分解模型,建立了TM影像尺度下的盐池县植被覆盖度遥感定量模型,在此基础上研究了盐池县1989年和2003年两个时期植被覆盖的动态变化。研究表明,1989~2003年盐池县植被呈增加趋势,荒漠化出现转逆,并进一步分析荒漠化变化的原因。更多还原

【Abstract】 To estimate the Yanchi vegetation cover from TM images,a model is set up by use of NDVI and a sub-pixel vegetation coverage model.The quantitative and spatial characteristics of vegetation cover transformation over Yanchi county in 1989 and 2003 are studied on the basis of above approaches.The results indicate that the vegetation is increasing in Yanchi county,and the condition of desertification in Yanchi county is changing better.In addition,the main causes why the desertification change in Yanchi county is also presented.更多还原

【关键词】 NDVI盐池县；荒漠化；遥感；
【Key words】 NDVI； Yanchi county； desertification； remote sensing；

【基金】国家林业局荒漠化监测项目(660550)

【文献出处】水土保持研究 ,Research of Soil and Water Conservation , 编辑部邮箱 ,2006年03期

【分类号】X171
【被引频次】19
【下载频次】300

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