2002年冬季新疆塔城地区沙尘暴成因及对策

Analysis on A Serious Dust Storm Occurred in Winter 2002 Based on the Dynamical Change of Land Use/Land Cover Patterns During 2002～2002 in Tacheng Prefecture,Xinjiang

新疆塔城地区 2 0 0 2年冬季发生的罕见沙尘暴 ,利用 2 0 0 0～ 2 0 0 2年新疆塔城地区TM遥感影像解译 ,对塔城地区土地利用现状及土地覆被类型动态变化进行分析 ,并以塔城地区人为因素的经济活动破坏了该地区的地表覆盖为例 ,说明造成该地区冬季发生罕见沙尘暴的主导起因。

The actuality of ecological environment is closely related to the actuality of land use,and land use change is an important driving force of causing the regional ecological environment change and can make the ecological environment develop positively or negatively. Occurrence of dust storms is a signal of deterioration of the ecological environment,therefore,to timely understand the actuality and dynamic change of land use change can reveal the problems of ecological environment,guide the rational land use,and promote the virtuous circle of ecological environment and the regional sustainable development. This paper analyzes a serious dust storm occurred in winter 2002,the actuality of land use and the dynamical change of land cover patterns in Tacheng Prefecture,Xinjiang,by using the interpreted results of the TM remote sensing images during the period from 2000 to 2002. It is considered that one of the dominant factors resulting in the serious dust storm is that the land cover is destroyed by human activities. The project of withdrawing from farming to afforesting and grass planting is an important work for improving the ecological environment,so it is suggested to make every effort to implement this project in Xinjiang.