中文摘要：

城市化是最极端的人为土地覆盖的转变,对生物多样性和生态系统功能与服务的影响远超出城市本身的范围.基于3个时段土地利用数据,本研究利用景观格局分析方法分析了不同空间幅度下鄂尔多斯东四旗城市化景观时空格局的变化特征.结果表明：城市化对地区生态、社会、经济产生了深刻影响,整体景观的破碎化和复杂性程度增大,各斑块类型表现出独特的空间特征并受到不同程度的影响.沙地和城市用地变化幅度最大,耕地受城市化的影响最严重.从驱动力的定性分析看,资源因素、城市人口增长和经济发展是驱动地区城市化景观时空格局变化的重要驱动因子.

英文摘要：

Urbanization is the most drastic form of land use change,which affects the biodiversity and ecosystem functioning and services far beyond the limits of cities.Based on the land use data in three time periods and by the method of landscape pattern analysis,this paper analyzed the change characteristics of the spatiotemporal pattern of urbanization in the four Banners of East Erdos at different spatial scales.Urbanization had profound effects on the local ecology,society,and economics.The landscape as a whole became more fragmented and complex,and different patch types exhibited distinctive spatial characteristics and were affected to different degrees at class-level.Desert and urban land varied greater,and cropland was most affected by urbanization.Resources factors,increase of urban population,and development of economy were the main socio-economic driving factors to the changes in the local landscape spatiotemporal pattern of urbanization.