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桐柏县二郎山水库灌区于1972年民办公助建成,渠系大部分是土渠,经过30多年的运行,工程老化,年久失修,干支渠输水能力小,渠道水利用系数低。同时,田间配套工程标准低,管理设施不配套,一方面造成水资源的大量浪费,另一方面缩减了灌区的效益面积。为充分发挥灌区工程效益,以水资源的可持续利用促进经济社会的可持续发展,迫切需要对灌区进行节水改造。
The Erlangshan Reservoir Irrigation District of Tongbai County was built in 1972 by civil-owned public aid workers. Most of canal systems are soil ditches. After more than 30 years of operation, the project has been aged and has been disrepair. The capacity of water transfer in dry and branch channels is small and the channel water utilization coefficient is low. At the same time, the low standard of supporting projects in the field and the unavailability of management facilities have caused a great waste of water resources on the one hand and reduced the effective area of irrigation areas on the other. In order to give full play to the efficiency of irrigation works and promote the sustainable development of economy and society by the sustainable utilization of water resources, it is urgent to carry out water-saving transformation of irrigation districts.