瑞丽市土地覆被遥感动态变化研究

Study on the Remote Sening Land Cover Change of Ruili

借助ENVI4.7遥感软件平台,选取国家一类口岸城市瑞丽市为研究区,对瑞丽市1991年ETM＋影像、2000年ETM＋影像、2012年Rapid Eye影像进行处理,提取到3个时期的土地覆被信息;并利用动态度模型,分析了瑞丽市1991-2012年土地覆被的变化特征。结果表明：1991-2012年瑞丽市水体和建筑的面积出现增长的趋势,耕地和林地面积出现负增长趋势。人口活动的影响和城市化的加剧是导致耕地面积急剧减少的原因,因此应该采取相应的措施对瑞丽市地区植被进行保护,减弱人类活动造成的影响。

By using ENVI4. 7 software platform,selecting the port city of Ruili as the study area,1991,2000 two periods of TM image and 2012 period of Rapid Eye image were processed,three periods of land use / cover information were extracted. And by using dynamic model,the land use / cover change features from 1991 to 2012 were analyzed. The following conclusions were obtained： During 1991 to 2012,water and construction land appear growing trend,however,the cultivated land and wood land appear negative growing trend. The impact of human activity and urbanization are the cause of dramatically reduction in cultivated land,therefore,appropriation measures should be taken to protect the vegetation of Ruili to weaken the impact of human activity.