论文部分内容阅读
长江,我们祖国的第一大河,全长6300公里,流经八省市,流域面积180万平方公里,域内的国民生产总值占全国三分之一。由于三峡工程的日益临近,人们在议论这样的话题:长江会变成黄河吗? 长江会不会变成黄河,关键就要着江水中泥沙含量是否已接近或赶上黄河?差距还有多大?要回答这个问题,首先要弄清黄河、长江泥沙的成因和活动情况。
The Yangtze River, the largest river in our country, has a total length of 6,300 kilometers and flows through eight provinces and cities. The drainage area is 1.8 million square kilometers. The gross national product in the area accounts for one third of the country’s total. As the Three Gorges Project is approaching, people are talking about the topic: Will the Yangtze River become the Yellow River? Will the Yangtze River become the Yellow River? The key is whether the sediment content in the river is close to or close to the Yellow River? How big is the gap? To answer this question, we must first understand the causes and activities of the Yellow River and the Yangtze River sediment.