摘要
基于建设崇明世界级生态岛的需要,本文应用高分一号卫星数据,对研究区2013-2017年的土地覆盖类型进行分类和制图,并在该基础上进行土地覆盖变化信息分析。研究表明,研究期内崇明岛总面积增加了43.56km^2,不同的土地类型面积不断变化,其中耕地、森林和未利用地有减少趋势,尤其是耕地面积减少幅度较大,而水体和湿地面积呈增加趋势。引起崇明岛土地变化的最主要的驱动力是城市建设。
In order to fulfill the requirements of constructing the world-class ecological island,the land cover types of Chongming is-land was classified and mapped from 2013 to 2017 using GF-1 images.Based on this,the land cover change information was then ana-lyzed.Results showed that the total area of Chongming island had increased by 43.56 km 2,and the area of different land types was constantly changing,among which the cropped land,forest land,and unused land had a decreasing trend,especially a dramatic re-duction of cropped land.On the contrary,the area of water and wetland were increased.The most important driving force for land change is urban construction in the study area.
作者
曾毓燕
ZENG Yuyan(Shanghai Geological&Mineral Engineering Investigation Co.,Ltd.,Shanghai 200072,China)
出处
《测绘与空间地理信息》
2020年第6期157-159,共3页
Geomatics & Spatial Information Technology
关键词
土地覆盖
高分影像
崇明岛
遥感
land cover
GF-1 imagery
Chongming island
remote sensing
