| 黑河下游分水对额济纳绿洲植被恢复效果的遥感监测 |
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| 引用本文： | 都瓦拉,邓晓东,玉山,那顺,郭瑞清.黑河下游分水对额济纳绿洲植被恢复效果的遥感监测[J].甘肃气象,2008,26(4):67-70. |
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| 作者姓名： | 都瓦拉 邓晓东 玉山 那顺 郭瑞清 |
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| 作者单位： | [1]内蒙古生态与农业气象中心,内蒙古呼和浩特010051 [2]内蒙古师范大学遥感与地理信息系统重点实验室,内蒙古呼和浩特010022 |
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| 摘 要： | 利用1996、2000、2002和2006年4个时期的TM数据，计算了额济纳旗绿洲的NDVI，根据NDVI大小划分裸露地、稀疏植被区、中等植被区和茂密植被区4个等级，对比分析黑河分水前后额济纳旗绿洲NDVI的面积变化，了解黑河分水对下游植被恢复的效果。结果表明：1996～2002年，额济纳旗绿洲植被一直处于退化阶段；2006年，经过黑河连续7a的分水，下游植被得到较好的恢复，黑河下游的生态环境退化问题得到了缓解和恢复。
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| 关 键 词： | 黑河下游 分水 额济纳绿洲 遥感监测 |
Remote Sensing Monitoring on Vegetation Restoration of Ejina Oasis After Heihe River's Water Diversion |
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| Duwala,DENG Xiaodong,YU Shan,Nashun,GUO Ruiqing.Remote Sensing Monitoring on Vegetation Restoration of Ejina Oasis After Heihe River's Water Diversion[J].Gansu Meteorology,2008,26(4):67-70. |
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| Authors: | Duwala DENG Xiaodong YU Shan Nashun GUO Ruiqing |
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| Affiliation: | 1.Nei Monggol Ecological and Agricultural Meteorological Center;Hohehot 010051;China;2.Inner Mongolia Normal University RS&GIS Key Laboratory;Hohehot 010022;China |
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| Abstract: | The NDVI of Ejina Oasis was calculated based on the data derived from Landsat TM/ETM+ images in 1996,2000,2002 and 2006,and in light of NDVI's value the land cover was divided into four types:the bare land,the sparse vegetation area,the lower vegetation area and the dense vegetation area.Through the comparison of the different grade vegetation area change before and after water devision,the restoring effect of the vegetation in Ejina Oasis can be found out,and this can supply the scientific foundation for t... |
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| Keywords: | the downstream of Heihe water division Ejina oasis remote sense monitoring |
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