本文選題：黃河內蒙河段　切入點：烏海　出處：《蘭州大學》2015年碩士論文

【摘要】：黃河是我們的母親河,但近年來由于其攜帶了大量的泥沙,導致在中下游地區(qū)常常出現(xiàn)地上懸河的現(xiàn)象,給沿岸的居民帶來很大的災害。對于黃河泥沙來源的分析,對進一步采取措施以減少災害發(fā)生是非常必要的。黃河內蒙河段屬于沙漠寬谷河段,在此區(qū)域有大量泥沙入黃,因此,本文選取黃河烏海-托克托的河段為研究對象,對黃河該河段的泥沙來源進行較為深入的分析。黃河的烏海-托克托段流經河東沙地、烏蘭布和沙漠、庫布齊沙漠等沙物質較為豐富的地區(qū),同時這些地區(qū)又是我國最重要的風沙活動區(qū),其風沙活動很可能導致風沙入黃,從而使這些地區(qū)成為該河段泥沙的可能主要來源。為了對這些可能源區(qū)進行定量的分析,本文采用指紋識別法,通過對源區(qū)的選擇(烏海上游源區(qū)、沙漠源區(qū)及十大孔兌源區(qū))、河段的劃分(根據潛在泥沙來源地不同劃分為三個河段：烏海-磴口河段、磴口-中河西河段和中河西-托克托河段)及計算,發(fā)現(xiàn)在烏海-磴口河段,烏海上游河段源區(qū)、河東沙地、烏蘭布和沙漠和庫布齊沙漠對其泥沙的貢獻率分別為43.66%、34.91%、17.71%和3.72%；在磴口-中河西河段,四個源區(qū)對其的貢獻率分別為41.74%、6.39%、7.68%和44.19%；在中河西-托克托河段,烏海上游河段源區(qū)、河東沙地、烏蘭布和沙漠、庫布齊沙漠和十大孔兌對其的貢獻率分別為31.38%、3.78%、3.52、16.69%和44.63%。根據本文定量分析的初步結果,我們認為在研究河段內,黃河確實從其流經的幾大沙漠中帶入了大量的泥沙,該研究結果對黃河內蒙河段泥沙的治理提供了一定的定量性參考數(shù)據。
[Abstract]:The Yellow River is our mother river, but in recent years due to its carrying large amounts of sediment, resulting in hangingriver phenomenon often happens in the downstream areas, coastal residents brought great disaster. Analysis of the the Yellow River sediment source, to take further measures to reduce the occurrence of disasters is very necessary. The the Yellow River Inner Mongolia section is the desert straight reach, this area has a lot of sediment into the yellow, therefore, this paper selects the Yellow River Wuhai - Togtoh River as the research object, analyzes the sources of the river sediment in the Yellow River. The Yellow River, Wuhai - Togtoh section through the Hedong sandy land, Ulan Buh Desert, Kubuqi Desert sand material relatively rich areas, at the same time, these areas are the most important wind area in our country, the aeolian activity is likely to lead to the sand into the yellow, so that these areas become the main sediment in river The source of these. In order to analysis energy zone quantitatively, this paper adopts fingerprint identification method, based on the source region selection (Ukraine sea tour source area, desert source area and the ten big hole Duiyuan river area), division (according to different sources of potential sediment is divided into three sections: Wuhai - Dengkou section. In the Dengkou River in Hexi Hexi and Togtoh section) and its calculation, found in Wuhai - Dengkou River, Wuhai river source area of Hedong sandy, Ulam, cloth and desert and Kubuqi Desert on the sediment contribution rates were 43.66%, 34.91%, 17.71% and 3.72%; in Dengkou - West River, four source area for its contribution rate were 41.74%, 6.39%, 7.68% and 44.19%; in the Hexi Togtoh River, Wuhai river source area of Hedong sandy, Ulam, cloth and desert, Kubuqi Desert and ten of the contribution rate of the respectively 31.38%, 3.78%, and 3.52,16.69% 44.63%. according to the preliminary results of quantitative analysis in this paper, we believe that in the study area, the Yellow River did bring a lot of sediment from several deserts that it flows through. The research results provide quantitative reference data for sediment control in Inner Mongolia section of the Yellow River.

【學位授予單位】：蘭州大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TV141

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本文編號：1687886