漫湾电站移民安置地的土地覆盖遥感监测  

Land Cover Remote Sensing Monitoring on Manwan Dam Immigrant Settlement

作　　者：袁希平[1] 何大明[2] 

机构地区：[1]昆明理工大学国土资源学院,云南昆明650093 [2]云南大学亚洲国际河流中心,云南昆明650091

出　　处：《山地学报》2004年第3期267-271,共5页Mountain Research

基　　金：国家"十五"科技攻关西部重大项目(2002BA901A22);国家重点基础研究发展计划专题(2003CB415105)~~

摘　　要：结合野外实地考察,应用1988、1996、2000年的TM数据,以漫湾电站建设中远迁移民安置地作为研究试验区,监测移民安置地试验区内相应时段的土地覆盖状况,分析因电站建设以来试验区的土地覆盖变化时空分异特性与生态环境状况。结果表明,试验区移民安置地的土地覆盖在结构上表现为以旱地及其他混合类型为主要优势,在时间动态方面,移民安置地的旱地及其他混合类型出现急剧增加,而灌木林地急剧减少。究其原因是受山区自然条件限制,而电站移民因生活与生产需要,大量开垦灌木林地进行农业开发利用活动所致。由此得出,对于电站建设所必然出现的山区远迁移民安置地建设,自然力和人为作用是导致当地生态环境正效应和负效应的根本驱动力,因此,对于电站建设中的山区移民安置点土地利用,必须坚持规划指导与管理,促进其走可持续发展之路。Integratedly considering field investigation background, selecting Man-Wan Dam Immigrants Settlement area as the study case, based on the application of remote sensing technique, Man-Wan Dam Immigrants Settlement land cover condition were monitored by Landsat TM satellite images in 1988 , 1996 and 2000. Based on these data, the paper analyzes land cover change in class compostion and spatial distribution, which last from Man-Wan Dam plan to be completed. The results shown that, with the Dam setting up, land cover change in mountain Immigrants Settlement area has its characteristic. The behave is that mountain slope dry land mix with other cover types is of dominance relative to other cover classes, and shrubbery cover area reduce rapidly while dry land mix with other cover types increase quickly. Analysis associated with field investigation, one reason comes from the limit of the mountain natural conditions; another main drive is the poor lag of land use management manner by man-made action. So it is necessary to enhance Dam Immigrants Settlement area land use plan and management in Lancang River basin, prompt local social sustainable development.

关 键 词：澜沧江 移民安置地 土地覆盖 遥感监测 

分 类 号：F301.23[经济管理—产业经济]