珠江是我国南方的大河,流经滇、黔、桂、粤、湘、赣等省(区)及越南社会主义共和国的东北部,流域面积我国境内44万平方公里。主流西江全长2214公里。珠江流域北靠五岭,南临南海,西部为云贵高原,中部丘陵、盆地相间,东南部为三角洲冲积平原,地势西北高,东南低。珠江流域是一个复合的流域,由西江、北江、东江及珠江三角洲诸河等四个水系所组成。 The Pearl River is a big river in the south of our country. It flows through the provinces (regions) of Yunnan, Guizhou, Guangxi, Guangdong, Hunan and Jiangxi provinces and the northeast of the Socialist Republic of Vietnam. Its basin area is 440,000 square kilometers in China. The mainstream Xijiang a total length of 2214 km. The Pearl River basin north of Wuling, South of the South China Sea to the south, the Yunnan-Guizhou Plateau, the central hills, the basin and white, the southeast of the delta alluvial plain, topography northwest high, southeast low. The Pearl River Basin is a compound watershed composed of four water systems, namely the Xijiang River, the Beijiang River, the Dongjiang River and the Pearl River Delta.