大凌河中下游水沙特性及影响因素研究  

An Analysis of Flow and Sediment Characteristics and Influencing Factors in Daling River

作　　者：郭维东[1] 姚庆宇[1] 张家阳[1] 李虹[2] 戴晶 孟文 

机构地区：[1]沈阳农业大学水利学院,沈阳110866 [2]辽宁省节约用水发展中心,沈阳110003 [3]丹东市江河流域管理处,辽宁丹东118000 [4]庄河市水库移民后期扶持工作办公室,辽宁大连116400

出　　处：《中国农村水利水电》2014年第7期61-63,共3页China Rural Water and Hydropower

基　　金：国家自然科学基金资助项目(40071183);国家水体污染控制与治理科技重大专项(2012ZX07202-004-01);辽宁省自然科学基金资助项目(2013020155)

摘　　要：基于大凌河流域自然状况及社会经济状况,选取上窝堡、朝阳、义县和凌海4个水文站的历年水沙资料,分析大凌河的水沙情况,同时结合径流量-输沙量的年际变化图、年内变化图、沿程变化图及多年双累积曲线图,分别从时间与空间上分析大凌河水沙特性及其影响因素。结果显示:大凌河中下游的泥沙主要由于集中强降雨携带而来;来水来沙量年际变化趋势基本保持一致;径流量及输沙量在年内分配中主要集中在7月和8月。By using the total situation of the Daling River and the actual data of four hydrographic stations in downstream reach inclu- ding Shangwobao, Chaoyang, Yixian, Linghai in recent years, the sources of runoff and sediment load are analyzed in detail. Moreo- ver, based on four kinds of graphs about runoff and sediment load, including annual graphs, average monthly distribution graphs, different reach graphs, and annual accumulation graphs, the characteristics of flow and sediment at four hydrographic stations were also analyzed. The results obtained demonstrated that the sediment in downstream was carried by concentrated heavy rainfall in the upstream. The annual changing trend of water flow and sediment was completely consistent. The Annual distribution of runoff and sediment load were mainly concentrated in July and August.

关 键 词：大凌河 水沙特性 输沙量 年径流量 

分 类 号：TV14[水利工程—水力学及河流动力学]