摘要
结合辽河流域概况及下游马虎山、平安堡、辽中、六间房4个水文站的历年来水来沙资料,分析辽河下游的水沙来源,并通过径流量—输沙量的年际变化图、年内变化图、沿程变化图以及多年的双累积曲线图,分别从时间和空间上对辽河下游的水沙特性及其影响因素进行分析。结果表明：辽河下游的泥沙主要由上游暴雨携带而来;2000年以前的来水来沙较大,此后急剧减少,仅有多年平均的10%;从马虎山至六间房,多年平均输沙量表现为逐渐递减。
By the use of the total situation of the Liao River and the actual data of four hydrographic stations in downstream reach including Mahushan,Pinganbao,Liaozhong,Liujianfang in recent years,the sources of runoff and sediment load were analyzed in detail.Moreover,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 well analyzed.The results obtained demonstrated that the sediment in downstream was carried by torrential rain in upstream.The runoff and sediment in 2000 years later rapidly decreased,compared to that in 2000 years early,only 10% at the yearly average.Average yearly runoff and sediment load gradually decreased from Mahushan to Liujianfang.
出处
《沈阳农业大学学报》
CAS
CSCD
北大核心
2010年第3期360-362,共3页
Journal of Shenyang Agricultural University
关键词
辽河
水沙特性
径流量
输沙量
The Liao River
flow and sediment of characteristics
runoff load
sediment load
