Weihe River is a tributary of the Yellow River and Jinghe River is a tributary of Weihe River. The confluence of Jinghe River and Weihe River forms a clear and turbid phenomenon, mainly because the sediment concentration of Jinghe River and Weihe River is different. After the confluence, a magnificent landscape and relatively obvious boundaries are formed.

Distinctive means that the water in Jinghe River and Weihe River is clear and turbid, and the water in Jinghe River is clear and turbid when it flows into Weihe River. Metaphor is clear or right.

Synonyms are clear, black and white.

Antonyms do not distinguish each other, nor do they distinguish each other.

The origin of the idiom: The Book of Songs Li Feng Gu Feng: "Jing Hun is also muddy."

Idioms and their stories

In Feng Menglong's novels in the Ming Dynasty, the idiom "distinct" appeared clearly. Regarding the turbidity of the two rivers, Du Fu, a poet in the Tang Dynasty, said in Autumn Rain Sigh: "What is the difference between turbidity and water?" However, in the works of Su Shi, a writer in the Song Dynasty, there is a reference to "river turbidity", and Cao, a poet in the Yuan Dynasty, also has the question of "what is the difference from the source of Wei turbidity".

In the fifty-fifth year of Qianlong in Qing Dynasty (AD 1790), Emperor Qianlong ordered local officials to survey the sources of Jinghe River and Weihe River to find out which were clear and which were muddy. Hu Jimo, the magistrate of Pingliang, found that the water in the Jinghe River was clear and pure, and even at the downstream, it was still as pure as ever. However, the discussion about who is turbid and who is clear about Weihe River and Jinghe River is still not over. In fact, the key to determining whether a river is clear or turbid is the vegetation and ecological status of the area where the river flows. According to big data monitoring, Jinghe River is in flood season from July to September every year, and it is in dry season from 65438+2 to February the following year. The sediment concentration in Jinghe River gradually increased from May, reached the highest value in August, and began to decrease regularly in September, with an annual sediment discharge of about 284 million tons. When it rains in the flood season in the middle and upper reaches, the sediment volume increases, which is more turbid than the Weihe River. In non-flood season, the sediment volume is smaller than Weihe River, and the water in Jinghe River is much clearer than Weihe River. So after a heavy rain, the Jinghe River became extremely turbid. A few days later, the river was calm and clear. In fact, behind this phenomenon, people should pay more attention to the vegetation, sediment concentration, environmental pollution and seasonal flood period around the two rivers. Different days, different situations, will also see different wonderful scenes, which may be the most real "bright".