基于TM/ETM^+影像的区域土地利用/覆盖变化研究

Research on Regional Land Use/Cover Change Using Landsat TM and ETM^+ Data

以吐鲁番市的葡萄乡和亚尔乡为研究区域,采用1990年的TM影像数据和1999年的ETM+影像数据以及2005年的土地利用数据为主要信息,应用遥感(RS)技术和地理信息系统(GIS)技术,对吐鲁番市的葡萄乡和亚尔乡近15a的土地利用/覆盖类型变化情况、各地类面积变化率、土地利用/覆盖总体变化情况和农业用地变化情况进行了分析研究。得出15a中,葡萄乡和亚尔乡的土地利用/覆盖呈现"四增四减"的变化规律,并分析了引起变化的原因,为今后土地利用的规划和管理提供了科学依据。

In this paper, taking Grape Country and Yaer Country of Tulufan as the study area, adopting TM image data from 1990, ETM^＋ image data from 1999 and land use data from 2005, and making use of the technology method of remote sensing （RS） and geography information system （GIS）, we analyzed the changing of the land use and land cover from 1990 to 2005. During 15 years, the change rules of land use/land cover in the study area above show as follows： the area of orchard increased most seriously, it increased 3463.1 hectare during these 15 years and the increasing rate was 64.57%; the cultivated land increased 1181.82 hectare in 15 years and the increasing rate was 24.33%; the grassland, forest land, water body and un-using land were a tendency to reduce, among them, grassland was decreased, it decreased 98.07 hectare and the rate of decreasing was 45.22%, water body was decreased 69.61 hectare during these 15 years and the decreasing rate was 26.00%. This paper also analyzed the cause of these changes, and provided some scientific basis for the programming and management of land using in future.