摘要
Abstract
As a powerful tool specifically designed for land data management,analysis,and visualization,land information systems bring new opportunities for overall national spatial planning.Using the Yangtze River Delta as the research area and MapGIS software as the tool,analyze the application of land information system in the overall planning of national land space.Set up 30 sampling points in the research area to collect various data,and use SuperMap software to preprocess the data to solve the problems existing in the original data,such as incorrect classification of land use types,inconsistent terrain slope units,and missing population density data,and then analyze indicators such as construction land proportion,cultivated land ownership,and ecological land area.Single indicator analysis shows that from 2010 to 2020,the proportion of construction land in urban centers increased,while the amount of cultivated land in some areas decreased.Comprehensive indicator analysis shows that with the implementation of planning policies,the comprehensive planning level of most regions has been improved from 2010 to 2020.关键词
土地信息系统/国土空间/总体规划/技术路线/评价方法Key words
land information system/national land space/overall planning/technical roadmap/evaluation method分类
天文与地球科学
