Research on virtual irrigation district system

Irrigation, by which human beings intervene the nature, has been greatly changing the route of valley water circulation, then caused a series of transformation of hydrological and ecological environment. We should scientifically solve these problems from the whole viewpoint such as high efficiency utilization of water resource, conservation and cultivation of soil and water, sustainable development. Based on the techniques of digital water-saving agriculture, field data and real time observation information and professional model, the research platform of ecological irrigation district is proposed to demonstrate the evolution, study the present status and forecast the future. The scheme of virtual irrigation district system in virtue of VR-GIS is discussed, the application of virtual irrigation district in Yangling is considered as the key technology and application prospect.