Information about Dongting Lake

Dongting Lake, formerly known as Yunmeng, Jiujiang and Chonghu, is located on the south bank of Jingjiang River in the middle reaches of the Yangtze River, spanning Yueyang, Miluo, Xiangyin, Wangcheng, Yiyang, Yuanjiang, Hanshou, Changde, Tianjin, Anxiang and Nanxian counties and cities. The name of Dongting Lake began in the Spring and Autumn Period and the Warring States Period, and it was named after Dongting Mountain (now Junshan Mountain) in the lake.

Dongting Lake receives water from Songzi, Taiping, ouchi and Diaoxian counties of the Yangtze River, connects with four small tributaries of Hunan, Zi, Yuan and Li in the south and west, and flows into the Yangtze River from Chenglingji, Yueyang City.

Dongting Lake was called "Eight Hundred Li Dongting Lake" in ancient times. At the end of 1990s, it was estimated by the water conservancy department that there was an area of 2,579.2 square kilometers (2,740 square kilometers). However, it also has four major rivers, namely, Xiang, Zi, Yuan and Li, and the flood discharge area of "Four Mouths of the Yangtze River" 1.300 square kilometers (1.878 square kilometers). Add up to 3879.2 square kilometers. The circumference of the lake basin is 803.2 kilometers, with a total volume of 22 billion cubic meters, including 65.438+078 billion cubic meters of natural lakes and 4.2 billion cubic meters of rivers.

Dongting Lake is an important storage lake in the Yangtze River basin, with strong flood storage capacity. It has saved the Yangtze River floods many times, and Jianghan Plain and Wuhan three towns have been able to survive the floods safely.

Dongting Lake is an important strategic place in history and the birthplace of China traditional culture. There are many scenic spots in the lake area, and the historic site represented by Yueyang Tower is an important tourism cultural resource. It is also the birthplace of Chinese traditional agriculture, the famous land of plenty, the most important commodity grain and oil base and aquaculture base in Hunan Province and even the whole country.

Dongting Lake area is located in the south of the middle reaches of the Yangtze River and in the north of Hunan Province. Dongting Lake, with Dongting Lake as the core, is a dish-shaped basin that transits from east, south and west to alluvial plain, hills around the lake and low mountains. Administrative divisions include Yueyang, Huarong, Xiangyin, Nanxian, Anxiang, Hanshou, Lixian, Linli, Taoyuan, Wangcheng 10, and Linxiang, Yuanjiang, Miluo and Tianjin.

And Yueyang Louqu, Junshan District and Yunxi District in Yueyang City, Ziyang District and Heshan District in Yiyang City, Wuling District and Dingcheng District in Changde City, 2 1 county and city, in addition to Songzi, Gongan and Shishou counties and cities in Hubei Province. Part of Hunan's land area is 3 1.7 million square kilometers, accounting for 1.5% of the whole province.

Dongting Lake area is the "land of plenty" in Hunan and even the whole country. The surrounding areas are extremely rich in natural resources, with a solid agricultural production base and a large labor force. Establishing the economic circle around Dongting Lake is of great significance to accelerate the economic and social development of Dongting Lake and even Hunan.

On the premise of emphasizing economic benefits and adhering to environmental benefits, we can establish a national super-large commodity grain base, commodity pig base, commodity aquatic product base, high-level foreign exchange earning agricultural base and ecological agriculture base; Establish high-level and high-level tourist bases, scientific, technological, cultural and educational bases and commercial bases to realize the sustainable economic and social development of the lake area.

During the pre-Qin and Han dynasties, Dongting Lake, also known as Jiujiang, collected the flood diversion flows from Hunan, Guizhou, Yuan and Li and flowed northward into the Yangtze River. At that time, the river course could reach the lower reaches of Lishui River and cross Jiujiang River, that is, it was diverted through Dongting Lake, while the terrain from the south bank of Jingjiang River to the lower reaches of Lishui River was higher in the north and lower in the south (contrary to the present situation).

Because the Yangtze River Basin and Surabaya Basin in the upper reaches of Jingjiang River are sparsely populated, the degree of development is low, the virgin forests are still well preserved, and the soil erosion is extremely slight. Therefore, although Dongting Lake receives the diverted flood from Surabaya and Jingjiang River, it has less sediment and clear water flow.

References:

Dongting lake _ Baidu encyclopedia