Application Study On Irrigation Management Information System Based On WR-2000 Type Hydrograph

Gansu is a semiarid and arid area .The supply and demand of water resources were the most significant contradiction. The water use efficiency of irrigation was low. With the rapid development of computer and network technology, the acceleration of information-based water process, and the country's increasingly stringent requirement of water measurement for irrigation areas, ensuring that measured by household and charged for square. Nowadays, there was a variety of channel flow measurement equipments, and how to choose a highly precise, easily operated and managed water irrigation measurement and information controlled system, which can be extended in most irrigation regions has become a top priority.The purpose of this research was based on the Da Man irrigation section in Zhang Ye city. Using modern management technology, such as computer, network techniques, modern communications and other means of advanced techniques, people could construct informative irrigation region and achieve optimized management of irrigation system and enhance utilized water resources rate, as well as management level of irrigation regions.This paper, combined with"Auto-measurement of Water Irrigation Theme"of 863 national programs had studied the measurement problem of flow out in U shape channel. The application of WR-2000 type Auto-reported Water leverl on Da Man irrigation section made output, input, update, check and search all informations in irrigation regions come true. The environment and scope of this system, as well as the advantages and disadvantages and the problem should be paid attention to, had detailedly analysised based on the actual application conditions and the data information collected. Finally, the author concluded that this system would enhance the level of the management decision-making for each department of irrigation district. At the same time the paper would also had highly preference value for other research and development of informative system, offered strong theoretical guidance and technical guarantee for extending the system in most irrigation regions in the future.