玉林市灌溉用水总量控制研究

玉林市农业灌溉用水占全市社会需水量的60%以上,灌溉用水管理在玉林市水资源优化配置中占有十分重要的地位。通过对玉林市灌溉用水现状和农业产业结构,分析了灌溉用水量和渠系水利用系数;对典型灌区用水量进行测定,并根据不同作物的用水定额和渠系水利用系数,制定各种灌溉用水方案,实现灌溉用水总量控制;预测了玉林市今后一定时期内的灌溉用水供需关系。结果表明,玉林市灌溉用水基本达到供需平衡。

Study on Irrigation Water Volume Control in Yulin

Agricultural irrigation water of Yulin accounted for more than 60% of social demand of whole city,irrigation water use management in Yulin City occupied a very important position in the optimal allocation of water resources.Through analyzing Yulin irrigation water use situation and agricultural industry structure,irrigation water capacity and canal system water utilization factor were analyzed;then,typical irrigation water consumption were determined,moreover,based on different crop water consumption quota and canal system water utilization coefficient,various irrigation schemes were formulated,irrigation water volume control were realized;Yulin irrigation water supply and demand of a certain period of time in the future were predicted.The results showed that Yulin water for irrigation achieved a balance of supply with demand.