For a long time, due to "emphasizing development but neglecting protection", problems such as lake reclamation and over-breeding have become increasingly serious. 26,400 mu of lake was "divided" by 266 farmers, and fish and crab feed aggravated lake eutrophication and water quality degradation. Problems such as reclamation and over-breeding are serious, and the function and ecological environment of lakes are seriously declining. If this development continues, Dazong Lake may become a backwater. In shallow water, the ship can't sail in for a long time, and it has been silted up. Municipal and district people's congress deputies and CPPCC members have repeatedly called for an ecological and clean environment for the lake.
In 20 10, the relevant government departments will dig the Dazong Lake 2 meters deep and introduce sand and yellow river water, one of the "South-to-North Water Transfer Project", into Dazong Lake, which can improve the water quality of Dazong Lake on the one hand, and play a role in drought resistance and drainage on the other. 20 1 1 Facing the great opportunity of coastal development, the project of "returning farmland to lakes" was incorporated into the coastal development strategy by Yancheng Municipal Government. Since then, the general office of the provincial government has approved the "Request for Approval of Special Planning for Reclamation of Dazong Lake (Yancheng City)" by the Yancheng Municipal Government.
The overall goal of the project of returning farmland to lake is to restore the flood storage capacity of Dazong Lake, improve the water quality of the source water, gradually repair and enhance the ecological service function of the lake swing, establish the optimal protection and development model of lake resources, and change the past pollution situation. The project of "River Diversion into Lake" refers to dredging the river course to the west of Dazong Lake, and introducing the river water from Shahuang River, an important waterway of South-to-North Water Transfer Project, into Dazong Lake. In order to increase the amount of water drawn from the lake, a lake river with a length of 5 km, a width of 100 m and a depth of 2.5 m was dug in the lake. With the help of the river water, the water quality in the urban area was improved, and the beautiful scenery of "Autumn Moon in Pinghu" in Dazong Lake was reproduced. In the past, the water in Dazong Lake was the tail water of Daxing River and Liyu River in Xinghua, Taizhou. After the completion of the "River Diversion into Lake" project, the water in Dazong Lake mainly comes from the Yangtze River. It has changed the water source structure for many years, and opened the interface with the Shahuang River, and Dazong Lake will directly benefit from the "South-to-North Water Transfer Project".
Not only that, the python estuary has also been widened into a "trumpet-shaped" entrance with an area of about 300 mu and a depth of 3 meters. The water from the Dazong Lake flows to the Python River, which can be described as "indomitable and unimpeded". This increases the water flow and makes the water in Dazong Lake and Python River more closely related. In fact, residents along the python river will benefit, including those who drink the water source of Yanlong Lake in the urban area. This is a fundamental change.
Yanxi Bridge in shagou town, xinghua city, borders Xinghua in the west and Du Yan in the east. After dredging, the water conservancy project has taken on a new look. The yellow sand of the Yangtze River flows quietly from the foot, and continuously flows to the Dazong Lake in Du Yan, the Python River and the Salt Lake.
Combination of protection and moderate development
These dredged sludge from the bottom of the lake is darker in color and harder than the local ordinary sludge, but the sludge will not be wasted, but will be used to fill the abandoned ponds nearby, form an island, plant trees on it, and plant aquatic plants around it to play the role of ecological water purification. Thousands of acres of water purification plants, such as reeds and Elodea, have been planted in green spaces and small islands in the lake to carry out ecological restoration of the lake beach. At the same time, all the domestic sewage in the scenic area will be transported to the Dazong Lake Sewage Treatment Plant through an 8-kilometer-long pipeline to ensure that the 24-square-kilometer land in the lake area will not generate new pollution sources.
This livelihood project is based on maintaining the healthy life of the lake, focusing on meeting the needs of regional flood control and water supply, focusing on protecting the ecological environment, taking into account aquaculture and wetland tourism, guiding the scientific development and utilization of Dazong Lake and promoting regional economic development. After the completion of this series of projects, it will greatly improve the quality of life of ordinary people and promote the protection of the ecological environment. At the same time, on the basis of protection, the steady development of modern agriculture, ecological aquaculture and tourism is of great significance to promoting industrial transformation and upgrading in Dazong Lake area and building beautiful Yancheng and green Yancheng.
Returning the lake is not just to hoard a lake of clear water. How to combine the protection and utilization of 4A national scenic spots with moderate development, and develop tourism with scenery is a new topic. According to Du Yan and Xinghua county records, the site of the "Ancient City of Eastern Jin Dynasty" in the Southern Song Dynasty was sleeping at the bottom of Dazong Lake. Based on this, the project of "China Dazong Lake Water Film and Television City" is about to be completed, and an "ancient city of the Eastern Jin Dynasty" that reproduces the cultural features of the Eastern Jin Dynasty is also under active construction.
Dazong Lake Scenic Spot has been successfully declared and approved as a national water conservancy scenic spot, and actively strives to pass the acceptance of the national 5A scenic spot.
Dazong Lake, which has a history of 800 years, is very happy to witness all this.
Solve the way out for farmers
Most of the farmers here are locals, purse seine in their hometown and eat by the lake. Gradually, Dazong Lake became a "breeding lake". At the same time, the way out for farmers has become a realistic problem that local governments must consider.
For a long time, there are 266 farmers on the surface of Dazong Lake in Yancheng, of which 160 households are purse seine farmers, with an area of more than 100 mu. After the retreat, the government specially set up a fishery sightseeing area to keep farmers who have been living on the lake and have no land on the shore from their old jobs. Although the farming area has shrunk, it has become larger. Coupled with the generous subsidies given by the district government, most farmers accepted it.
Compared with the traditional "one household, lack of planning" farming model, the scientific and reasonable farming model is more long-term. Our vision can no longer be confined to the present, but to the future. Only by protecting lakes can we engage in sustainable agriculture and benefit local farmers in the long run.
Dazong Lake is famous for its tourist attractions, and aquaculture has also gained great reputation in the past few years. After the purse seine culture is retained in the fishery sightseeing area, according to the requirements of "scientific and reasonable, standardized and orderly, modern ecology", the optimized culture mode and healthy ecological culture will become the main trend in the future.