Position: Home > Articles > A study on dynamic monitoring rangeland regradation and its distribution in the Xilin Gol Plateau's dry steppe
Agricultural Research in the Arid Areas
2002,20
(1)
95-97+109
典型干草原退化草地的时空分布特征及其动态监测
作 者：
王鹏新;陈晓玲;李飞鹏
单 位：
武汉大学测绘遥感信息工程国家重点实验室
关键词：
典型干草原草地;退化;Landsat卫星影像;非监督分类
摘 要：
在地形较为平坦的内蒙古锡林郭勒高原典型干草原草地上选择样区 ,借助于 L andsat卫星遥感影像 ,采用非监督分类的方法研究了不同时期典型干草原草地的退化与恢复特征 ,结果表明 ,近 2 0多年来 ,草地退化经历了从逐渐退化到严重退化 ,再到有所恢复的发展过程。从所选择的卫星影像的时相分析 ,若以 1973年为标准 ,则1987年草地退化最为严重 ,此时盐渍化草地面积也大 ,1996年退化草地面积有所减少
译 名：
A study on dynamic monitoring rangeland regradation and its distribution in the Xilin Gol Plateau's dry steppe
作 者：
WANG Peng xin, CHEN Xiao ling, LI Fei peng (National Laboratory for Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, Hubei 430079, China)
关键词：
degradation; rangeland; temperate dry steppe; Landsat imagery; unsupervised classification
摘 要：
This is a pilot study of rangeland degradation in the Xilin Gol Plateau of Inner Mongolia of North China by using Landsat imagery. The plateau is relatively flat and temperate dry steppe is the main land cover. An unsupervised classification approach was used for the classification of the rangeland and for studying and better understanding rangeland degradation and reclamation in more than 20 years. The results showed that the rangeland degradation was very serious in 1987 compared to the rangeland development in 1973, and at this time saline grassland also covered a relatively large area. To some extent, it seemed there was some rangeland reclamation in 1996 compared to that of 1987.
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