摘要
水利工程的兴建致使河流水域形态发生改变,严重者会破坏河流生态系统,影响河流生态环境的可持续发展。针对单一的非工程措施难以充分保护减水河段生态系统的问题,以新疆和田地区某混合式开发水利枢纽工程为基础,将生态修复的非工程措施与工程措施相结合,根据目标鱼类适宜的水深、流速,采用生态水力学法计算减水河段非工程措施所需的生态流量,并通过二维水力模拟计算,对研究河段横向、纵向上工程修复措施的改善效果进行分析,分析结果显示:枯、丰水期在下泄生态流量基础上,增加纵向修复可使加权可使用面积分别增加55.11%和38.00%。研究表明,将非工程措施与工程措施相结合,可以明显改善减水河段的生境状况。
The construction of water conservancy projects leads to the change of rivers and waters shape.In severe cases,the river ecosystems are destroyed.And the sustainable development of river ecological environment is destroyed.It is difficult for the single non-engineering measures to adequately protect the ecosystem of water reducing river.Therefore,based on a mixed development water conservancy project in Hetian area of Xinjiang,combining the engineering measures with non-engineering measures of ecological restoration,according to the appropriate water depth and velocity of the target fish,the ecological hydraulics method is used to calculate the water-engineering measures of the ecological flow.And through two-dimensional hydraulic simulation calculation,it studies horizontal and vertical engineering rehabilitation measures to improve the effect of analysis.It shows that in the dry season and wet season,based on the discharge of ecological flow,the increase of longitudinal restoration could increase WUA to 55.11%and 38.00%.The research shows that the combination of engineering measures and non-engineering measures can significantly improve the ecological environment of the river.
作者
韩仕清
HAN Shiqing(Xinjiang BoYan Water Resources and Hydropower Environmental Technology Co.,Ltd.,Urumqi 830000,China)
出处
《水利信息化》
2018年第2期21-25,共5页
Water Resources Informatization
关键词
水利工程
减水河段
生态修复
生态流量
工程措施
非工程措施
water conservancy project
flow reduced river reaches
hydraulic ecological rehabilitation
ecological flow
engineering measures
non-engineering measures
