摘要
Abstract
Objective] The aim was to study the change of land use/coverage in Turpan area during 1990-2015 using 3S technology. [Meth-od]With Turpan landsat5 TM images in 1990 and 2015 landsat8 OLI images as basic data, by using 3S technique, two temporal Turpan Oasis land use types were derived by visual interpretation and maximum likelihood supervised classification method based on spectral feature. Finally u-sing comprehensive index of land use dynamic change analysis and spatial transfer matrix method, the land resource structure characteristics and change rules in the past 25 years in Turpan Oasis were discussed. [Result]The results indicated that the Turpan Oasis showed an obvious trend of expansion, oasis area which include cultivated land, grassland, garden area was increased significantly, unused land which include bare land and saline land area was decreased. Meanwhile, the construction land and water area were increased significantly, but the oasis peripheral Rump Lake - Aydingkol Lake presented shrinking trend. [ Conclusion] The study can provide basic data and scientific basis for eco-environment pro-tection in Turpan area.关键词
吐鲁番绿洲/土地利用/覆被变化/Landsat TM/OLI数据Key words
Turpan Oasis/Land use /cover change/Landsat TM/OLI data分类
天文与地球科学
