黑河下游分水对额济纳绿洲植被恢复效果的遥感监测

J4 ›› 2008, Vol. 26 ›› Issue (4): 67-70.

黑河下游分水对额济纳绿洲植被恢复效果的遥感监测

都瓦拉¹ ,邓晓东¹ ,玉山² ,那顺¹ ,郭瑞清¹

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

收稿日期:2007-06-18 修回日期:2008-11-11 出版日期:2008-12-30 发布日期:2008-12-30
作者简介:都瓦拉(1979-) ,女(蒙古族) ,内蒙古通辽人,主要从事遥感应用研究. E-mail: dwlrsgis@163. com

Remote Sen singM on itor ing on Vegeta tion Restora tion of Ejina Oa sis After He ihe River’sWa ter D iversion

Duwala¹ , DENG Xiaodong¹ , YU Shan² , Nashun¹ , GUO Ruiqing¹

1. NeiMonggol Ecological and AgriculturalM eteorological Center, Hohehot 010051, China;2. InnerMongolia Norm al University RS&GIS Key Laboratory, Hohehot 010022, China

Received:2007-06-18 Revised:2008-11-11 Online:2008-12-30 Published:2008-12-30

摘要/Abstract

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NDV I,根据NDV I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NDV I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7 a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。

关键词: 黑河下游, 分水, 额济纳绿洲, 遥感监测

Abstract:

The NDV I of Ejina Oasis was calculated based on the data derived from Landsat TM /ETM + images in 1996, 2000, 2002 and 2006, and in light ofNDV I’s value the land coverwas 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 afterwater devision, the restoring effect of the vegetation in Ejina Oasis can be found out, and this can supp ly the scientific foundation for the Heihe water - division p lan of the next step. The monitoring results show that the ecological environment of Ejina Oasis kep t deteriorating before 2002, but after seven - yearwater division from upper andmiddle reaches of Heihe River, the environment deterioratingwas alleviated and vegetation was restoring stage by stage.

Key words: the downstream of Heihe, water division, Ejina oasis, remote sense monitoring

中图分类号:

X171. 4

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]. J4, 2008, 26(4): 67-70.

DOU Wa-La, DENG Xiao-Dong, YU Shan, NA Shun, GUO Rui-Qing. Remote Sen singM on itor ing on Vegeta tion Restora tion of Ejina Oa sis After He ihe River’sWa ter D iversion[J]. J4, 2008, 26(4): 67-70.