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今天,“珠江”的概念是指西江、北江、东江和珠江三角洲诸河4个水系的总称,它跨越中国西、南方的滇、黔、桂、粤、湘、赣等省(区)及越南社会主义共和国的东北部,总流域面积453690km2,其中我国境内面积442100km2,广东省境内面积111300km2。但在历史上,珠江与西江、北江、东江曾被视作4条不同的河流,它们的形成与演变经历了一个漫长的历史过程。介绍珠江4水系的形成与演变过程。
Today, the concept of “Pearl River” refers to the general name of the four river systems in the Xijiang, Beijiang, Dongjiang and Zhujiang Delta. It extends over the provinces (autonomous regions) in Yunnan, Guizhou, Guangxi, Guangdong, Hunan and Jiangxi provinces in the west and south of China, And the northeastern part of the Socialist Republic of Vietnam. The total drainage area is 453,690 km2, of which 442100 km2 is in China and 113,300 km2 in Guangdong. However, in history, the Pearl River, the Xijiang River, the Beijiang River and the Dongjiang River have been regarded as four different rivers. Their formation and evolution have undergone a long historical process. Describe the formation and evolution of the Pearl River 4 water system.