Three-dimensional visualization of farmland consolidation planning based on GIS

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.