摘要
渠系水利用率是评价节水灌溉技术改造工程效益和灌区管理工作水平的主要指标。同时也是分析工程状况和节水潜力的基础,因此,必须对其做出计算和评估。目前,在大型灌区中,渠道的布置不规范,普遍存在越级渠道,本文针对越级取水对渠系水效率的影响进行了研究。其结论是:越级取水,从在局部上看,提高了渠系水效率;在整体上看,反而降低水效渠系水率。
Now there is disadvantage on calculating methods of canal system water efficiency.It should be studied systematic how to calculate canal system water efficiency.The tradition method is that per class canal water efficiency multiply directly.The method result is not often exactly because canals collocation form is not considered.In fact,there is a lot of canals collocation form in the large sized irrigation district.It was studied how to calculate canal system water efficiency and the tradition method has is modify in the paper.The point of new view which its water efficiency is decline to exceed to get water with whole view or is go up with part view has be proposed.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
北大核心
2013年第2期115-118,共4页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
关键词
越级取水
渠系水利用率
大型灌区
Exceeding to get water
canal system water efficiency.
the large sized irrigation district
