城市规划数字化中的土地评价地理信息系统关键技术分析

Analysis of Key Technologies of Land Evaluation Geographic Information System in Urban Planning Digitization

智慧城市的建设推进了城市规划数字化发展进程,依托计算机信息技术构建数字模型,以实时数据为基础,实现城市规划决策量化分析,可以辅助做出更加科学的决策,避免城市建设的盲目性和无序性。本文以城市规划数字化中的土地评价地理信息系统为例,首先概述了系统的基本结构和数据组织管理、带权叠加分析功能模块;随后以某工业厂房搬迁选址为例,分别从选择评价因子及其原始栅格土层、获取因子量化栅格土层、开展带权叠加分析等方面,总结了土地评价地理信息系统的关键技术。从应用效果来看,该系统的土地适宜性评价结果能够为厂房搬迁选址提供参考,达到了预期的应用价值。

The construction of smart cities promotes the digital development process of urban planning.Relying on computer information technology to build digital models,based on real-time data,quantitative analysis of urban planning decisions can be realized,which can assist in making more scientific decisions and avoid the blindness of urban construction.and disorder.Taking the land evaluation geographic information system in urban planning digitization as an example,this paper firstly outlines the basic structure of the system,data organization and management,and functional modules of weighted overlay analysis;The key technologies of land evaluation geographic information system are summarized in terms of its original grid soil layer,obtaining factor quantization grid soil layer,and carrying out weighted overlay analysis.From the application effect,the land suitability evaluation results of the system can provide a reference for plant relocation and site selection,and achieve the expected application value.