The geographical environment of Dongtai

Dongtai City is located in the Huaihe River Basin, and Tongyu River runs through the north and south, dividing Dongtai City into two major water systems: Didong and Dixi. The east dike is an independent irrigation and drainage area, and the west dike belongs to Lixia water system. The eastern part of the dam is very high. East-west rivers mainly cross Donggang (Heduo River), Dongtai River, Liangduo River, Sancang River, Anmao River, Tangfang River, Hongxing River, etc. North-south rivers mainly include Yunshui River, Futou River, Panbao River and trunk rivers in reclamation areas, etc.

Dongtai is rich in water resources, with an average annual precipitation of 65438 0.055.2 mm, and 555.25 million cubic meters of surface water can be used. Tongyu River has been designated as a water purification channel by the province. It is designed to take water from the Yangtze River with a flow rate of 100 m3/s, which is normal Class III water and deliver water to Yancheng City and Lianyungang City through Dongtai City. Urban shallow groundwater is rich in reserves, but its salinity is high, so it is not suitable for drinking and can be used as general industrial water. Deep groundwater is a high-quality fresh water resource with good water quality and abundant reserves. The allowable annual exploitation amount of deep groundwater in Dongtai City is180,000 cubic meters, and the actual exploitation amount in 2065 is11630,000 cubic meters. As of 20 12, the residents of Dongtai city are mainly Han nationality, and the number of other ethnic minorities is small. The resident population of ethnic minorities ***3 199 comes from 36 different ethnic minorities. In terms of gender, the ratio of male to female in Dongtai City is 1: 5.3, and the majority of ethnic minority women are married. In terms of age, minors under 18 account for 2 1% of the total population, young adults aged from 19 to 60 account for 78% of the total population, and elderly people over 60 account for1%of the total population; Geographically, it is mainly distributed in Dongtai Town, Fu 'an Town and Touzao Town. They are Miao, Tujia, Buyi, Dong, Zhuang, Hui, Yi, Dai, Bai, Manchu, Yao, She, Hani, Kazak, Gelao, Mongolian, Shui, Li, Tibetan, Uygur, Lisu, Tu and Wa.