利用MODIS影像对运城市近5年来植被覆盖的分析

植被作为生态系统的重要组成部分,是联结土壤、大气和水分的自然纽带。为了研究运城市植被的覆盖状况,选取运城市2003年9月至2007年9月同一时相、同一分辨率的MODIS遥感影像,计算了每年植被指数值,并对植被变化区域进行了分析。结果表明:运城地区南部比北部的植被多,南部以中高等植被覆盖为主,从2003年到2007年运城的植被覆盖呈现逐渐上升的趋势。

Analysis of Vegetation Coverage for Past Five Years in Yuncheng City Using MODIS Images

Vegetation as an important component of the ecological system,is natural link to the soil,air and water.In order to research the vegetation coverage condition of Yuncheng City,this paper,selects MODIS images of Yuncheng City which have the same time and the similar resolution from September 2003 to September 2007,calculates all vegetation index values,and analyses the changed region.The result shows: In Yuncheng,the vegetation in the south is much more than in the north,and in the south the higher vegetation coverage is dominant and from 2003 to 2007 the vegetation coverage in Yuncheng shows the rising trend.