穆教授以受到水土问题影响最大的黄河流域为例说，“黄河在历史上因为含沙量高于其它河流而因颜色而得名，但如今人类活动让黄河变得更黄了。”
"Historically, it got its name because of its colour - because the water contains more mud and sand than other rivers. But now it's yellower because of human activities, " he said.
最大流速和含沙量都发生在大潮落潮，最小流速和含沙量都发生在小潮涨潮。
The maximum current speed and SSC occour during spring ebb, and the minimum one occours during neap flood.
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