摘要
针对塔里木河干流河道引水灌溉的实际情况,总结了引水灌溉的特点,指出库灌、渠灌和泵灌并存是该地区引水灌溉的主要特点之一.洪水漫溢、跑水口跑水和引水口引水是干流河道耗水用水的主要形式,洪水漫溢和引水无度是水资源严重浪费的主要原因.利用塔里木河干流输沙能力公式,进一步研究了引水分沙对河道冲淤的影响.研究成果表明:上游(阿拉尔至英巴扎)河段,分水增加使该河段的淤积加重或冲刷减轻;中游(英巴扎至恰拉)河段,引水分沙使河道处于减淤状态.当引沙比较大时,对减少干流泥沙淤积是有利的,同时也可减轻干流泥沙处理的负担.
There are three types of reservoir,canal and pumping irrigation in the trunk channel of the Tarim River.Based on the field data of the Tarim River,diversion characteristics were stated in this paper.Flooding and diversion with no order are two kinds of the most important loss of water resources in upstream and midstream,which results in water shortage and a serious environment problem in the Lower Tarim River.Deposition caused by diversion was studied based on capacity of the sediment transport in the Tarim River.It was shown that diversion results in serious deposition in the upstream,and less deposition in the middle reach,and that the more sediment diversion from the river,the less deposition amount in the channel.
出处
《水利水电技术》
CSCD
北大核心
2003年第1期48-51,共4页
Water Resources and Hydropower Engineering
