基于遥感技术的松辽平原盐渍化动态研究  

Dynamic changes of soil salinization in Songliao Plain based on RS technology

作　　者：陈凤臻[1,2] 姜琦刚[1] 程彬[3] 马驰[1] 于显双[2] 

机构地区：[1]吉林大学地球探测科学与技术学院,吉林长春130026 [2]赤峰学院资源与环境管理系,内蒙古赤峰024000 [3]长春师范学院城市与环境科学学院,吉林长春130032

出　　处：《生态环境》2008年第5期1921-1925,共5页Ecology and Environmnet

基　　金：中国地质调查局资助项目(1212010510613)

摘　　要：运用RS、GIS手段,以航天遥感MSS/TM/ETM为主要信息源,运用参数构造法、空间叠加分析法和网格等值线追踪法,对松辽平原盐渍化进行多时相遥感动态监测。研究结果表明,近30年来松辽平原盐渍化面积持续增加,强度持续增强。盐渍化面积变化总动态度为-1.03%,其中,1975—1989年为-1.67%,1989—2003年为-0.31%。盐渍化强度中心位于大安与乾安之间,1975—1989年,强度中心向北东方向移动22.81km;1989—2003年,强度中心向西南方向移动16.50km。松辽平原盐渍化是自然因素和不合理人类活动共同作用造成的。By means of RS and GIS technology, Authors applied the parameter-structure method, space-superposition analysis method and grid contour tracing method to carried out multi-temporal dynamic monitoring of soil salinization in Songliao Plain using Landsat-MSS, TM and ETM data as the major data resource. The results showed that the area of soil salinization in Songliao Plain increased continuously in the past 30 years. The total dynamic degree of soil salinization＇s changing area was about-1.03 %, and -1.67 % from 1975 to 1989, -0.31% from 1989 to 2003, respectively. The intensity center of soil salinization was located between Da＇an and Qian＇an, and it moved 22.81 km in a north-east direction from 1975 to 1989, 16.50 km in a west-south direction from 1989 to 2003. Soil salinization of Songliao Plain was caused by natural factors and unreasonable human activities.

关 键 词：松辽平原 盐渍化 遥感 动态变化 

分 类 号：X87[环境科学与工程—环境工程]