子洲县大理河中水灌溉利用方案探析

Analysis on Irrigation Utilization Scheme of Dali River in Zizhou County

黄土高原区水资源紧缺,为了提高水资源利用,弥补农业灌溉需水问题,基于大理河流域污水治理、河流水质现状和中水灌溉利用现状,采用水资源供需平衡法,在分析中水灌溉需求量和可供量的基础上,对中水灌溉利用方案进行探讨,提出利用滚水坝拦水、水泵提水至处理厂,处理后中水通过提升泵站进入蓄水池进行生态节点、生态林(碳汇林)灌溉的方案,可为大理河流域污水处理和中水农业灌溉提供科学依据。

Water resources are in short supply in the loess plateau region.In order to improve the utilization of water resources and make up for the problem of agricultural irrigation water demand,based on the status quo of sewage treatment,river water quality and irrigation utilization in the Dali river basin,the method of water supply and demand balance was adopted to discuss the utilization scheme of irrigation water based on the analysis of irrigation demand and availability.This paper puts forward the scheme of using rolling dam to hold water,pump water to the treatment plant,and then the treated water enters the reservoir through the lifting pump station for ecological node and ecological forest(carbon sink forest)irrigation,which can provide scientific basis for sewage treatment and agricultural irrigation of the Dali river basin.