东北三省城市扩展及植被覆盖状况  

Urban expansion and vegetation coverage in three provinces of Northeast China

作　　者：王斌[1] 姜琦刚[1] 孟翔冲[1] 吴阳春[2] 杨佳佳[1] 李根军[3] 

机构地区：[1]吉林大学地球探测科学与技术学院,长春130026 [2]吉林大学综合信息矿产预测研究所,长春130026 [3]吉林大学地球科学学院,长春130061

出　　处：《世界地质》2012年第1期218-223,共6页World Geology

基　　金：中国地质调查局专项资助项目(1212010911084)

摘　　要：基于三期遥感影像数据(MSS、ETM、CBERS)对城市建成区的面积进行了调查,研究30多年来东北三省城市的扩展情况,并且结合NDVI数据,对研究区范围内的植被覆盖情况进行了研究。结果表明:1976—2000年、2000—2007年两个阶段,城市建成区的面积持续增加,年均扩展率由5.10%增加至6.32%,扩展强度比较显著的区域主要分布在哈大交通经济带上;研究区范围内东部的植被覆盖情况明显好于西部,NDVI均值随与城市距离的增加而提高。Based on the remote sensing images（MSS,ETM,CBERS）for three periods,the authors investigate the urban buildi-up area,and study the expansion in three provinces of Northeast China in the past 30 years and vegetation coverage,combining with the NDVI data.The results showed that the urban build-up area continue to increase in 1976-2000 and 2000-2007,the annual mean expansion rate increased from 5.10% to 6.32%,the notable area of expanding strength mainly distributed in Harbin-Dalian traffic economic belt;the vegetation coverage in the east was better than the west within the scope of the study areas,and NDVI mean raised with the increase of urban distance.

关 键 词：遥感 城市扩展 NDVI 东北三省 

分 类 号：X173[环境科学与工程—环境科学]