Design And Implementation Of Webgis-based Shule River Irrigation District Irrigation Management System

In our country,we have a large population but not enough arable land。Agriculture has a basic effect to the social stability and development.Irrigated agricultural production is an important component of agricultural production for the whole country. It is especially necessary to assure the Irrigated agricultural production.In recent years, the decrease of cultivated land,worsening desertification , water pollution, shrinking of lakes and oasis and decrease of ground water tables hinder the development of irrigation seriously. The emergence of extreme weather also caused a great loss to irrigation production. For the sustainable development of irrigation, we should improve the technologies of prediction and prevention, improve management efficiency, increase water conservation awareness.The Informationization of Irrigation is an effective way to slove those problems.Network geographic information system (WebGIS) technology is a popular information technology now.This technology utilize geographic information technology, computer network technology, remote sensing technology to provide irrigation managers for the omprehensive, rapid and accurate scientific evidence .This paper introduces the principle ang of model WebGIS technology and analyzes the various methods for achieving WebGIS.All the advantages and disadvantages of each method were compared. On this basis, this paper detailed Analyzes the irrigation district's business processes and that how to draft the water distribution plan.We have considered that how to draft the water distribution plan in the condition of drought and water shortage to maximize irrigation efficiency.This paper describes the design goals, design principles, and development platform of choice.and designs database design in detail.System have achieved an online electronic map, data entry and aggregation functions, development of distribution functions.By WebGIS technology tadministrators can more quickly and intuitively access to relevant data and make quick decisions. This greatly improved the efficiency of irrigation management, improved water use efficiency, reducing the irrigation of the operating costs.