Analysis on Spatial-temporal Land-use Changes of Oasis City——A Case Study of Kuytun City,Xinjiang Uygur Autonomous Region
Oasis City is the most sensitive area in arid region.Based on images of TM/ETM+,the methods of RS,GIS,and statistics was this paper used to carry out a dynamic analysis on the quantitative and spatial characteristics of land-use changes of Kuytun,the typical oasis city,over the past 16 years,which will benefit the sustainable land use of oasis city.The results turned out that the land use of Kuytun had changed a lot from 1993 to 2009 and differed with time and space;great changes also took place between different land-use types;and there were significant differences between the urban areas and rural ones.In terms of its land-use structure,the grassland decreased,forestland increased significantly between 2001 and 2009,and the water body and unutilized land changed a little.With regard to its spatial characteristics,great changes happened to the conversion among six land-use types;the downtown of Kuytun,which lies on the east,developed with the main feature that construction land and forestland increased,and the countryside of Kaiganqi was with the feature of conversion between cultivated land and grassland.For the changing trend,the cultivated land,forestland and construction land would expand,while the grassland,water body and unutilized land would change with a reducing trend.
国家科技期刊平台
NSTL
万方数据
维普
