基于GIS的农地整理三维可视化

Three-dimensional visualization of farmland consolidation planning based on GIS

农地整理是中国现阶段增加耕地数量与提高耕地质量的手段,也是协调人地关系、缓解人地矛盾的主要措施。该文将GIS与农地整理相结合,探索基于GIS的农地整理三维可视化的新方法。该文采用了系统分析法与实证分析法,并选取湖北省枣阳市熊集镇土地整理备选片为试验区,利用高程点构建农地整理的DEM,对其质量检验后与DOM叠加,构建了农地整理区土地利用现状三维地表景观;该文还论述了农田水利工程、道路工程等内容的三维构建方法,完成试验区工程布局的三维设计。以GIS为代表的空间技术将会提高农地整理规划的工作效率,也便于施工前的可行性论证。

The farmland consolidation is a way to improve quantity and quality of arable land in China currently,and it is also a way to coordinate the relationship between human beings and land resources and to deal with the conflicts between them.It combines GIS with farmland consolidation in order to explore a new method of three-dimensional visualization on such programs.Methods of system analysis and empirical analysis were employed,and it took the farmland consolidation planning in Xiongji Country,Zaoyang City,Hubei Province as an example.This paper built up a DEM by elevation points and created a three-dimensional landscape of land use status by overlaying with DOM after inspecting its quality.It also demonstrated the methods to built models of farmland water conservancy,roads and others by GIS,and thus obtained the three-dimensional visualization of land consolidation planning.It concludes that space technology such as GIS will enhance the farmland consolidation planning efficiency,and its application on this item can facilitate the feasibility argumentation before the project is to be constructed.