辽河各水沙来源区对下游泥沙沉积的影响  

Liaohe River Water and Sediment Source Areas Effects on Sediment Deposition Downstream

作　　者：陈杨[1] 

机构地区：[1]沈阳农业大学高等职业技术学院,沈阳110122

出　　处：《长江科学院院报》2010年第5期4-7,12,共5页Journal of Changjiang River Scientific Research Institute

基　　金：国家自然科学青年基金项目(40601054);辽宁省教育厅高等学校科学研究青年基金项目(05L403)

摘　　要：以辽河中下游有关水文站年系列资料为基础,运用泥沙收支平衡法,研究辽河中下游泥沙时空分布,结果表明:巨流河至六间房河段为辽河中下游强烈沉积区。运用统计学方法,研究巨流河—六间房河段泥沙沉积量与上游不同水沙来源区水沙量相关关系。分析结果表明:辽河下游巨流河—六间房河段沉积量与辽河支流柳河产沙区产沙量具有较好的相关关系,柳河产沙量的变化对辽河下游河道泥沙沉积量的变化起着主要的控制作用,且柳河汛期单位来水来沙量较全年单位来水来沙量对辽河下游沉积量的贡献率更大。因此,为缓解辽河下游河道沉积问题,柳河水土流失的治理亟待加强。On the basis of the annual series of data of hydrological stations in the middle and lower reaches of Liaohe River and the sediment budget methed is used to research the temporal and spatial distribution of sediment in the middle and lower reaches of Liaohe River. Study results show that the reach from Juliuhe to Liujianfang is a strong deposition district of the middle and lower reaches of Liaohe River. The correlation between the deposition amount of the reach from Juliuhe to Liujianfang and the water and sediment volume from different sediment districts in the upper reaches of Liaohe River is researched using statistical methods. The results show that the deposition of the reach from Juliuhe to Liujianfang and sediment yield of Liuhe River have a good correlation. Changes of sediment yield area of Liuhe River play a major role in controlling to changes of sedimentation volume in the lower reaches of Liaohe River and the unit water and sediment of flood season makes a greater contribution rate to the basin deposi- tion. Therefore,in order to alleviate the problem of deposition in the lower reaches of Liaohe River, the governance of soil erosion should be strengthened in Liuhe River basin.

关 键 词：泥沙来源区 河道泥沙沉积 辽河中下游 

分 类 号：TV14[水利工程—水力学及河流动力学]