关键词: GIS技术, 土地利用/覆被, 转移矩阵, 土地利用程度模型, 功能转型, 叶城县

Abstract: Abstract: 
Based on the interpretation of remote sensing image data of land use, and with the support of relevant remote sensing technology, the land use types were divided into six types of LUCC data sources. By selecting land use dynamic degree and land use degree index, and combining land use degree and transfer matrix model, the land use / cover change and its function evolution in Yecheng County, Kashgar Prefecture, Xinjiang in recent 15 years were comprehensively analyzed. The results showed that:  from 2005 to 2020, the grassland, cultivated land, water area and construction land in Yecheng county showed an overall growth trend, increasing by 421.21 km2, 181.25 km2, 120.49 km2 and 7.37 km2 respectively, while the sand, glacier, permanent snow, forest land and other unused land areas were decreasing, decreasing by 320.58 km2, 303.92 km2, 61.16 km2 and 43.21 km2 respectively. In terms of land use degree, the land use degree in the study area had shown an upward trend in the past 15 years, indicating that the land use was in a development period, especially during 2010—2015, the land use degree index was higher than that in other periods. From the land use transfer matrix, it could be seen that the main types of transferred land in the study area were cultivated land, grassland, construction land, water area, etc., and the land area had increased to a certain extent, while the area of forest land, sandy land, glacier, permanent snow and other unused land had decreased. During the study period, among the land use function types, the ecological production land increased the most, with an increase of 480.92 km2, followed by the production ecological land, which ranked the second, with an increase of 181.02 km2, while the ecological accommodation land showed a decreasing trend, with a decrease of 667.82 km2, indicating that the change of land use function types in Yecheng county was greatly affected by human factors. The results can provide basis for sustainable utilization, scientific management and ecological planning of land resources in Yecheng County, Xinjiang.

Key words: GIS technology, land use/cover, transfer matrix, land use degree, land use function transformation, Yecheng County