安太堡露天煤矿土地破坏与土地复垦动态变化的遥感调查

通过对安太堡煤矿1976-2006年期间共10期遥感数据的处理分析,建立了该煤矿土地利用遥感分类系统;在遥感和GIS平台支持下,对10期遥感数据进行正射校正;采用人机交互式解译方式提取了该矿区近30a的土地利用变化情况,并通过室内航片以及野外实地考察进行了验证. 结果表明:研究区土地利用类型由简单到复杂,由1976年的4种类型发展到2006年的12种类型;地表遭到强烈破坏,到2006年因采矿破坏的土地达到了2730.7hm2,大面积复垦工作从1993年开始,到2006年共复垦了687.05hm2,为破坏面积的25.1%,复垦后部分地段出现退化,且有逐步扩大的趋势,需要尽快采取补救措施.

Dynamic change of land destroy and reclamation on ATB Opencast Coal Mine

10 times remote sensed data(MSS/TM/ETM /CBERS) from 1976 to 2006 in ATB Opencast Coal Mine were collected to set up classifications and identification of landuse based on remote sensing and interactively interpret the satellite images.The result indicates that the landuse type changed from simple to complicate during the 30 years,which is 4 types in 1976 to 12 types in 2006.A lot of land was destroyed and the total area is up to 2 730.7 hm2.Land reclamation began in 1993 and the reclamation area is 687.05 hm2 in 2006.Unfortunately,reclamation land degradation took place in several places because of coal waste rock self-burning,which is spreading.Efficient work has to do to deal with the problem.