摘要
在北方干旱地区供水水源紧张的情况下,如何科学合理确定生态需水量、景观需水量,平衡供水水源与生态需水量、景观需水量的关系是困扰设计工作者的难题,研究甚少。以西洋河生态治理工程为例,研究北方干旱地区具有生态、景观双重需求的需水量计算方法。生态需水量采用功能法、景观需水量采用堰流流量公式法计算,根据计算成果研究引水时间与流量、引水时间与投资等相关因素的关系,分析景观效果、调度原则、可引水量等制约条件,最终得到生态景观需水量。该研究方法为河道生态景观需水设计与管理提供参考。
Under the condition of water supply shortage in the arid areas of northern China,how to scientifically and reasonably determine the ecological water demand and landscape water demand,and how to balance the relationship among water supply source,ecological water demand and landscape water demand are difficult problems for designers,and there are few studies.Taking the ecological treatment project of Xiyanghe River as an example,this paper studies the calculation method of water demand with dual ecological and landscape demands in arid areas of northern China.The ecological water demand is calculated by functional method and the landscape water demand is calculated by weir flow formula method.According to the calculation results,the relationship between diversion time and flow,diversion time and investment and other related factors is studied,and the constraints such as landscape effect,scheduling principle and available diversion amount are analyzed to finally obtain the ecological landscape water demand.This research method provides a reference for the design and management of river ecological landscape water demand.
作者
王成言
赵星伟
WANG Cheng-yan;ZHAO Xing-wei(China Water Resources Beifang Investigation,Design and Research Co.,Ltd.,Tianjin 300222,China)
出处
《海河水利》
2022年第6期14-17,共4页
Haihe Water Resources
关键词
生态需水
景观需水
引水规模
制约条件
ecological water demand
landscape water demand
diversion scale
constraint
