Dongjiang, Xijiang and Beijiang, which is the largest?

Xijiang River is the largest, with a catchment area of about 353 1.20 square kilometers. Dongjiang river basin covers an area of 160 square kilometers, and Beijiang river basin covers an area of 52,068 square kilometers.

Dongjiang 1:

Dongjiang Lake is located in Zixing City, northeast of Chenzhou City, Hunan Province. It is a lake surrounded by Nanling Mountains and southern Luo Xiao Mountains (Bamian Mountain Range and Zhuguang Mountain Range). It is one of the thunder water sources 30 kilometers west of Chenzhou.

It is a national-level scenic spot, a national AAAAA-level tourist area, a national eco-tourism demonstration area, a national wetland park and a national water conservancy scenic spot, with a watershed area of 160 square kilometers.

1, Xijiang:

Xijiang River is one of the main rivers in the Pearl River system. The total length is 22 14km, and the catchment area is about 353 120km2. Xijiang has a long history, and different sections of the main stream have different names in history.

From the source to Zhexiang Village, Wangmo County, Guizhou Province, it is called Nanpanjiang, from Shilong Town, Xiangzhou County, Laibin City, Guangxi Province, it is called Hongshui River, from Shilong Town to Guiping City, it is called Qianjiang, from Guiping City to Wuzhou City, and from Wuzhou City to Sixianjiao, Sanshui District, Foshan City, Guangdong Province, it is called Xijiang.

2. Beijiang:

The Beijiang River was called Qinshui in ancient times, with a drainage area of 52,068 square kilometers, accounting for 10.3% of the total area of the Pearl River Basin. Part of the basin spans Hunan and Jiangxi provinces. The average annual runoff of Beijiang River is 5 1 100 million cubic meters, and the runoff depth is 109 1.8 mm. The main stream is called Zhenjiang above Shaoguan City, and Beijiang River only below Shaoguan.

Hydrological characteristics of Beijiang River;

Runoff in the main stream of Beijiang River is unevenly distributed during the year. Generally, the water quantity in dry season (10-3) only accounts for about 25% of the annual water quantity, and the water quantity in flood season (April-September) accounts for 75% of the annual water quantity.

The development of the main stream and tributaries of Beijiang River is controlled by arc mountains and valleys in the basin. The tributaries on both sides of the same arc valley often flow into the Beijiang River at close range, resulting in the simultaneous concentration of floods in the Beijiang River, which is characterized by rapid rise.

Refer to the above? Baidu encyclopedia-Dongjiang, Baidu encyclopedia-Xijiang and Baidu encyclopedia-Beijiang