本文選題：水沙過(guò)程　切入點(diǎn)：河道健康　出處：《太原理工大學(xué)》2014年碩士論文

【摘要】：人類(lèi)在社會(huì)經(jīng)濟(jì)發(fā)展的過(guò)程中,長(zhǎng)期不合理地開(kāi)發(fā)利用河流,加之氣候條件的變化,導(dǎo)致河流健康狀況持續(xù)惡化。影響河流健康的因素包括自然和人為因素兩方面,都是改變了河流天然的水沙過(guò)程,進(jìn)而造成了河流健康狀況的變化,即水沙過(guò)程是河流健康的根本影響因素。對(duì)水少沙多的黃河而言,其影響更為明顯。 河道健康作為河流健康的主要內(nèi)容,也是其基礎(chǔ),維持黃河下游河流健康的關(guān)鍵在于維持黃河下游河道健康。本文以維持黃河下游河道健康為目標(biāo),以協(xié)調(diào)的水沙過(guò)程是維持黃河下游健康的關(guān)鍵因素為切入點(diǎn),以實(shí)測(cè)水沙數(shù)據(jù)資料為基礎(chǔ),以下游河流健康和河道健康模糊評(píng)價(jià)為前提,圍繞水沙過(guò)程的變化對(duì)黃河下游河道健康的影響機(jī)理和規(guī)律進(jìn)行研究,得到了河道健康的主要影響因素是年徑流量和汛期來(lái)沙系數(shù)的結(jié)論,并由回歸分析得到相應(yīng)擬合公式,其預(yù)測(cè)值與模糊綜合評(píng)價(jià)結(jié)果相比較,吻合地相當(dāng)好,揭示了水沙過(guò)程對(duì)河流健康的影響機(jī)理,并能根據(jù)來(lái)水來(lái)沙條件很好地預(yù)測(cè)下游河道的健康狀況。指出合理調(diào)控水沙過(guò)程是恢復(fù)河流健康的重要措施,為維持黃河下游健康工作提供了科學(xué)依據(jù)和實(shí)際操作目標(biāo)。
[Abstract]:In the process of social and economic development, human beings have unreasonably exploited and utilized rivers for a long time, and the changes in climatic conditions have led to the continuous deterioration of river health. The factors that affect the health of rivers include natural and man-made factors. Both of them have changed the natural process of water and sediment in the river and caused the change of the health of the river, that is, the process of water and sediment is the fundamental influencing factor of the river's health, and the influence on the Yellow River with less water and more sediment is more obvious. River health is the main content and foundation of river health. The key to maintain river health in the lower reaches of the Yellow River is to maintain the health of the lower reaches of the Yellow River. The aim of this paper is to maintain the health of the lower reaches of the Yellow River. The coordinated process of water and sediment is the key factor to maintain the health of the lower reaches of the Yellow River. Based on the measured data of water and sediment, the following fuzzy evaluation of river health and river health is the premise. Based on the study of the influence mechanism and law of the change of the course of water and sediment on the health of the lower Yellow River, the conclusion that the main influencing factors of the river health are the annual runoff and the coefficient of sediment coming from flood season is obtained, and the corresponding fitting formula is obtained by regression analysis. The predicted value is in good agreement with the result of fuzzy comprehensive evaluation, which reveals the influence mechanism of water and sediment process on river health. It is pointed out that the reasonable regulation of the process of water and sediment is an important measure to restore the health of the river and provides scientific basis and practical operation goal for maintaining the health of the lower Yellow River.
【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TV147

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