沿程淤积溯源淤积的共同作用导致黄河下游纵剖面的调整。本文从数学模型出发,探讨溯源淤积的作用和影响范围,得到溯源淤积厚度占总淤积厚度的百分比在渔洼为48%、利津为33%,洛口为5%,艾山为0%。潮源淤积末端以不超过艾山为限.另外,本文还用沿程波和溯源波的概念分析数值结果,得到满意的结论.
The effect of longitudinal deposition together with the upstream deposition causes the adjustment of longitudinal profile in the lower reaches of the Huanghe River. Upstream deposition depends on the change of base level. From mathematical model, the effect and scope of upstream deposition are dealt with,and longitudinal and upstream deposition exist conjugate relalion. Generally, percentage of depth of upstream deposition in total deposition depth is 48% in Yuwa, 33% in Lijin, 5% in Luokou, and 0% in Aishan in the lower reaches of the Huanghe River. The end point of upstream deposition does not exceed the Aishan at most. Besides,the authors make use of the concept of longitudinal wave and upstream wave to analyze the numerical results and receive the satisfactory conclusions.
[1] 励强等:黄河下游泥沙输移的数值模拟,地理研究,8(2), 1980年.
[2] 钱宁等:河床演变学,科学出版社,1987年.
[3] Shen, H.W.:Modeling of River, John Wiley & Sons, New York, 1979.
[4] Marchuk, G.I., Methods of Numrica Mathematics, Springer-Verlag, New York, Headelberg, Berlin, 1980.
[5] 武汉水利电力学院:河流泥沙工程学,科学出版社,1980年.
[6] 尹学良:黄河河口的河床演变,泥沙研究,4期,1986年.
[7] Leopold, L.B. Wolman, M.G. and Miller, J.P.:Fluvial Processes in GeomorphologT, W. H.Freeman aad Company, 1964.
[8] 陈永宗等:黄上高原现代侵蚀与治理,科学出版社,1988年.
[9] 张经久:黄河喷沙入海对附近中小河口冲淤变化的影响,泥沙研究,4期,1984年.
[10] 陆中臣等:华北平原河流纵剖面,地理研究,6(1), 1986年.
[11] 钱宁等:黄河下游河床演变,科学出版社,1965年.
[12] Han Qiwei and He Mingmin: Mathematical Model of Nonequilibrium Transport of Nonuniform Sediment (MI-NEWS),Lecture Notes of Advanced Course on Mathematical Modeliag of Allpvial River, Vol. 2,China, 1987.
