The Research Of Hydrological Model Of South-to-North Water Transfer Region In Jiangsu Province

The shortage of water resources has been the bottleneck of China's socio-economic development. Our country's water resources is not rich and per capita are lower. Influenced by topography and weather, the distribution of our country's water resources is uneven. As a result, the south has less land and more water while the north is opposite. It is necessary to build human engineering—a large-scale inter-basin water transfer project in order to change the situation of uneven spatial and temporal distribution of water resources, to redistribute the water resources and to meet the needs of human production and life. Along with the continuous planning and implementation of water transfer project, the operation of water diversion project and water allocation will certainly become important work of water management department as well as government entities at all levels.The paper took the south-to-north region in Jiangsu province as the research region. First, as the complex sluice and pump hub and water user situation, we used "packing method" to generalize the river. Secondly the paper counted underlaying surface situations (including paddy fields, a dry land and water surface, construction land) in different administrative region and water resources region, established runoff models according to the four diffetern underlaying surface situations, and completed the parameters set. Thirdiy, we researched hub scheduling solution for south-to-north water transfer project in Jiangsu province systematically. Besides, we preliminary established engineering operating scheduling scheme and interpreted it into computer simulation editing data formats. Finally, confluence dynamic model was established according to the study area. The paper choosed 1968(general dry years) as typical yaer and we calculated river storage of Jiangsu province benefited region of south-to-north water transfer project using the above related standing scheduling solution and models. The results indicated that the runoff model could simulate the practical production flow process well. But the data results are still in some errors. So sluice and pump project scheduling solution needs to be further optimized.The paper did a lot of basic data collection about the river of the benefited areas in Jiangsu province, the users and the sluice and pump project. On this basis, the paper completed the generalization of river, complex hub and many water users. Meanwhile the paper developed a scheduling scheme for he sluice and pump project, established a runoff model and a river dynamic model. The basic work and some thinking method that had been done in the paper laid a good foundation for the scheduling and operation of the region and similar regional water diversion project and the deepening research of the water allocation, Thus it has a good theoretical and practical significance. Limited by the data, the paper still have place to be perfected in scheduling programs and the calculation results unavoidably exist error. Based on the study of this article, further perfecting the scheduling material of brake stations, optimization of the scheduling program and better calibration model are the focus of future work.