Analysis of Land Use Change in Tianjin City Based on RS

本文以天津市主要城区为研究区域，获取了天津市2003年与2018年两期Landsat7 ETM SLC-on/Landsat 8 OLI_TIRS遥感影像数据，利用遥感技术与地理信息系统进行研究与分析，基于遥感处理软件ENVI4.5及空间数据分析软件AcrMap10.2，采用监督分类方法，获得天津市在十五年间的土地利用类型及其变化结果并制作成图，分析计算天津市主要城区2003年至2018年城市扩张面积，调查天津市15年来土地利用变化情况。在对影像数据进行处理、土地利用类型图的制作与各土地利用类型所占面积数据统计的同时，对引起土地利用变化的驱动力因素进行分析并阐述，最后根据天津市土地利用变化发展的实际情况，提出未来展望。总之，本文的研究结果将为研究天津土地利用类型变化及天津城市的可持续发展进程和未来规划提供数据基础与科学依据。This paper takes the main urban area of Tianjin as the research area, obtains the remote sensing image data Landsat7 ETM SLC-on/Landsat 8 OLI_TIRS of Tianjin in 2003 and 2018, studies and analyzes by using remote sensing technology and GIS, and adopts the method of supervision and classification based on ENVI4.5 and AcrMap10.2 software to obtain the land use types and change results of Tianjin in the past 15 years and make a map, analyze and calculate the urban expansion area of the main urban areas of Tianjin from 2003 to 2018, and investigate the land use change of Tianjin in the past 15 years. At the same time of processing image data, making land use type map and counting area data of each land use type, the driving factors that cause land use change are analyzed and expounded. Finally, according to the actual situation of land use change and development in Tianjin, the future prospect is put forward. In a word, the research results of this paper will provide data basis and scientific basis for studying the change of land use in Tianjin and the sustainable development process and future planning of Tianjin city.