中文摘要：

随着中国经济发展与社会转型,城市空间扩张迅速,城市土地利用格局与结构不断变化。两城一体化是具有中国特色的土地利用类型转变形式。选择郑州市、开封市的快速一体化区域为研究对象,以2004年、2008年和2010年三个年份的TM影像和相关社会经济数据为主要数据源,利用遥感和GIS技术,分析研究区的土地利用变化、建设用地的扩展模式,并探索其驱动机理。研究表明：（1）土地利用变动加快,且以耕地和建设用地为主,土地利用程度综合指数增加。（2）中心城市先期带动,副中心城市后期推进,次中心节点连接,形成两端差异和分期主导的格局,总体符合＂点—轴＂模式。在更小的尺度上,形成了紧凑型圈层模式、低密度蔓延模式和轴向带状扩展模式等三种类型。（3）建设用地扩展是多重因素共同驱动的结果。自然地理环境、交通建设、经济发展和政府政策等分别起着基础性、指向性、决定性和控制性的作用,但政策规划的作用最为显著。

英文摘要：

With China＇ s rapid economic and social development, LUCC and its structure are changing all a- long and becoming a hot issue. Integration of the two cities is the unique type of land use change with Chinese char- acteristics. Taking integration area of Zhengzhou and Kaifeng which have been entering a rapid and down-to-earth development as a ease, the paper analyzes LUCC and its dynamic changes, construction land expansion model and driving factors for the study area based on RS and GIS by using 2004, 2008 and 2010 year TM images and related economic data. The results are obtained as follows： 1） the farmland and construction land-use were main LUCC patterns, construction land-use was rooting in cultivated land and unused land, its growth rate was the biggest and the proportion was gradually increasing; the cultivated land is gradually reducing; there was little change in water area; the area of unused land and woodland were also little, and reducing as time went by. At the same time, the comprehensive index of land use was gradually on the rise in study period. 2） Construction land expansion model met the ＂point - axis＂ spatial structure. In a smaller scale, the new construction land was mainly located in Zheng- dong New Area, Kaifeng New Area and Zhongmu country as the centers showing the layered structure expansion; there are zonal expansions in both sides of Zheng - Kai Road, and the towns and villages away from the three core areas was low-density continuous expansion. 3） The expansion of construction land was the results for multiple driv- ing factors which were mainly affected by natural and geographical environment, transportation construction, eco- nomic development and government policies, but the last factor was the most significant.