Why is the Yellow River clear in Lanzhou, Gansu?

In the impression of most people, when it comes to the water of the Yellow River, people always think that its water is turbid and looks yellow. However, the Yellow River in Lanzhou, Gansu Province is clear, not yellow. This is very confusing. Why is the Yellow River clear in Lanzhou, Gansu? In fact, the Yellow River in Lanzhou, Gansu Province is clear in winter, mainly because the soil erosion is not so serious in winter, and the whole riverbed is frozen in winter, so it looks clearer.

First, the Yellow River The Yellow River is very turbid and looks yellow as a whole. But the reason why the Yellow River looks yellow is mainly because there is too much sediment in the whole river, which makes the whole river very turbid to me, but it looks yellow from the outside. Then the reason why the Yellow River water is so turbid is mainly because the soil erosion around the Yellow River is too serious and the heavy rain washes away, resulting in the whole Yellow River water being very turbid.

Second, the reason why the Yellow River in Lanzhou, Gansu Province is clear Although most of the Yellow River water looks turbid, it does not mean that the water in the whole river is turbid. According to the investigation of relevant personnel, the Yellow River in Lanzhou, Gansu Province looks blue. However, in Lanzhou, Gansu, the Yellow River is clear only in winter. In fact, it is mainly because in winter, the weather is very cold, and the riverbed of the whole river is frozen. This can slow down the phenomenon of soil erosion to a certain extent. Moreover, once the riverbed freezes, the river speed will slowly decrease. Once the river slows down, the sediment in the river will slowly deposit on the bottom of the river, so the whole river looks clearer.

3. Overview The reason why the Yellow River in Lanzhou, Gansu Province is clear is mainly because the whole riverbed is frozen by the cold weather in winter in this place.