The reason why Baiyangdian dried up.
By 2065438+2009 1 1 month, Anxin county coordinated provincial and municipal water conservancy departments to implement Baiyangdian ecological water replenishment for three times, with a water volume of 65438+80 million cubic meters. The annual water level in the core area is controlled at about 7.6 meters, which maintains the ecological water level of Baiyangdian Lake.
It plays an important role in maintaining Baiyangdian ecosystem and developing agriculture, animal husbandry, fishery and tourism. Baiyangdian ecological environment protection pilot invested * * * yuan10.90 billion yuan to complete the comprehensive sewage purification and other sub-projects1/kloc-0.
The reconstruction project of the alkali drainage ditch in the sixth bid section from Nanhe to Xin 'an North Dike has been completed, with the total length of dredging being 3.3km, earthwork excavation being 36,400 m3, lotus planting 1.060 m2 and clover planting being 2 1.000 m2.
Invested 9.4722 million yuan to implement the dredging task of Baiyangdian Sightseeing Line A, Zhainan Village and Dongdiantou Wharf, with a total dredging length of 16.6 km and a dredging area of 273,600 square meters.
Extended data:
Baiyangdian has been inhabited for a long time. The pottery unearthed from Nanzhuangtou site in xushui county in the upper reaches of Baiyangdian Lake shows that as early as the early Holocene, primitive ancestors had moved to the vicinity of Baiyangdian Lake.
During the Shang and Zhou Dynasties, the scope of human activities in Baiyangdian gradually expanded. In the Spring and Autumn Period, there was a city near Baiyangdian. Zuo Zhuan recorded the first month of seven years, second only to Guo.
The Guo mentioned here was noted in the west of Renqiu County, Hebei Province according to the Summary of Fang Xing's Reading History. That is, the site of Gaoguocheng in the north of Houzhao Village today. During the Warring States period, there were Yi and raccoon towns here.
Before the Tang Dynasty, Baiyangdian Lake remained its original natural appearance without artificial management. In Song Dynasty, Baiyangdian was located in the border area of Song and Liao Dynasties. In the Song Dynasty, in order to resist the invasion of Liao soldiers, a pond was built in Baiyangdian, and the edge of Zhu water gathered, which was limited to Liao.
In addition, land reclamation and planting are also carried out, and management institutions are set up for marginal ponds and berths. Through artificial management, lakes can play their water conservancy benefits. In the Ming Dynasty, in order to supplement the population of Baiyangdian, a large number of immigrants moved into Anxin County from Hongtong County and Xiaoxingzhou in Gubeikou during Yongle period.
The production and life style in Baiyangdian area, which mainly focuses on fish and reed production, has gradually taken shape. The opening of Baotian Canal in Qing Dynasty played a great role in material exchange and economic prosperity in Baoding area.
Baidu encyclopedia-Baiyangdian