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当前位置: 首页 > 文章 > 锡林浩特草原植被盖度变化研究 中国农业资源与区划 2007,28 (02) 42-46
Position: Home > Articles > STUDIES ON THE CHANGES IN VEGETATION COVERAGE OF XILINHAOTE GRASSLAND Chinese Journal of Agricultural Resources and Regional Planning 2007,28 (02) 42-46

锡林浩特草原植被盖度变化研究

作  者：
张宏斌;杨桂霞;辛晓平;李刚;陈宝瑞;段庆伟
单  位：
农业部资源遥感与数字农业重点开放实验室;教育部环境演变与自然灾害重点实验室
关键词：
锡林浩特;草地植被;植被指数;盖度
摘  要：
该文选用锡林浩特市1989年和2002年两个时期的landsat-5 TM影像,剔除了影像中的水体、农田(撂荒地)、城镇用地、云以及云造成的大面积阴影,取1989年草原区与2002年草原区的交集作为具体研究区域,计算出该区域的SAVI指数,结合地面实测数据,得出两个时期锡林浩特地区草原的植被盖度。结果表明:研究区域内2002年有2 790.70km2草地盖度出现不同程度增加,主要分布在东南部和西部小部分地区,占研究区域总面积的19.46%。有11 552.77km2草地盖度出现不同程度降低,占研究区域总面积的80.54%,小部分地区甚至出现了土壤沙化。
译  名：
STUDIES ON THE CHANGES IN VEGETATION COVERAGE OF XILINHAOTE GRASSLAND
作  者：
Zhang Hongbin1,2,Yang Guixia1,2,Xin Xiaoping1,2,Li Gang1,2,Chen Baorui1,2,Duan Qingwei3,4(1.Resources Remote Sensing and Digital Agriculture Key Opening Laboratory of the Ministry of Agriculture,Beijing100081; 2.Institute of Agriculture Resources and Regional Planning,Chinese Academy of Agriculture Sciences,Beijing100081;3.Environment Evolvement and Nature Disaster Key Laboratory of the Ministry of Education,Beijing100875;4.Resources Science Institute of Resources College,Beijing Normal University,Beijing100875)
关键词：
Xilinhaote;grassland vegetation;vegetation index;coverage degree
摘  要：
This paper selects and uses landsat-5 TM videos taken during 1989 and 2002 in Xilinhaote City,eliminates water surface,wastelands,lands used by town and city,clouds and large areas of shades made by clouds.It takes the intersection of grassland areas in 1989 and 2002 as the studying region;figures out the SAVI of this region.Combining with the on spot survey data,the vegetation coverage degree of grassland in Xilinhaote region during these two periods is gained.Results show that within the studying region,in 2002 the grass coverage of 2,790.70 km2 has been increased by different degree.This increase mainly distributed in the Southeast part and small portion of the West part,which takes 19.46% of the total area of the studying region.The grass coverage of 11,552.77 km2 has been decreased by different degree,which takes 80.54% of the total area of the studying region.Even in a small portion,the land has become desert..

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