基于遥感数据的洞庭盆地东部地表垂直形变研究  

Study on the Surface Vertical Deformation in the Eastern Dongting Basin Based on the Remote Sensing Data

作　　者：陈玉冬[1] 李德平[1] 高海丽[1] 钟文章[1] 

机构地区：[1]湖南师范大学资源与环境科学学院,湖南长沙410081

出　　处：《安徽农业科学》2014年第4期1235-1238,1249,共5页Journal of Anhui Agricultural Sciences

基　　金：湖南省普通高等学校重点实验室开放基金项目(09K020);湖南师范大学地图学与地理信息系统校级重点学科建设项目

摘　　要：利用GIS技术对2000年的SRTM和2009年的ASTER GDEM数据进行处理,得到两个时期之间洞庭盆地东部及其周边区域的地表垂直形变分布图,然后从整体到局部分析洞庭盆地东部的地表垂直形变分布状况及其原因。结果表明,东洞庭盆地受构造沉降影响,大部分地区处于沉降状态,而局部地区受到泥沙淤积或人类活动的影响较严重,导致地表抬升;盆地外的地区,临湘市、岳阳县和汨罗市东部呈南北向的抬升带,处于幕阜-九岭隆起之上,受构造抬升影响,大部分地区处于抬升状态,而临湘市和岳阳市西北地区未处于隆起之上,大部分则处于沉降状态。这对掌握洞庭盆地演变趋势和洞庭盆地的工农业规划建设具有重要的理论意义。The surface vertical deformation maps in the east of Dongting Basin were obtained by processing the SRTM data in 2000 and the ASTER GDEM data in 2009 with the GIS technology. And＇ then the spatial distribution and reasons of the surface vertical deformation from whole to local scale were analyzed. Results showed that the eastem Dongting Basin was influenced by tectonic subsidence, and most areas of the basin were keeping in the subsidence state, the others keeping in a state of uplift which were influenced by serious sedimentation and hu- man activities. And outside of the basin, the east of Linxiangshi, Yueyangxian and Miluoshi were influenced by the uplift of Mufu-Jiuling mountain, most areas were keeping in a state of uplift, while the northeastern region of Linxiangshi and Yueyangshi were not in uplift, so most of the areas were keeping in the subsidence state. This has important theoretical significance to grasp the evolution of the eastern Dongting Ba- sin area and the regional planning and construction.

关 键 词：洞庭盆 SRTM ASTER GDEM 表垂直形变 地理信息系统 

分 类 号：S126[农业科学—农业基础科学]