The natural vegetation and various biological species in this area are relatively single, and the level of biodiversity is low. * * * There are more than 0/50 species of higher plants/kloc-recorded throughout the year, of which cultivated species account for 40%, while wild species are mainly Gramineae, Compositae, Labiatae and Polygonaceae, and almost no wetland plants grow; There are more than 30 species of birds and more than 0 species of fish 10, mainly silver carp and carp. The species and quantity of other soil animals, benthos and insects are 10 ~ 30% of that of natural wetlands.
From the results of investigation and analysis in the whole year, it can be seen that the regional environmental conditions are good except the air and soil quality, but the regional water environment quality is seriously damaged, the overall water quality is worse than the V class, and the indicators such as nitrogen, phosphorus and heavy metals are seriously exceeded. Its pollution sources are mainly the inflow of Wenruitang River, the domestic sewage of residents in the region and the production wastewater discharged by industrial enterprises.
To sum up, due to long-term reclamation, Sanyang wetland is a wetland ecosystem that has basically lost its original wetland attributes. At present, Sanyang wetland is facing the threat of industrial pollution. In the past, the crystal clear river water has been polluted in a large area and turned red, black and smelly locally. Although Sanyang Street invested 20 million yuan in dredging and pollution control last year, the water quality in Sanyang is below Grade III. Hardware electroplating, non-woven fabric industry and domestic sewage in Sanyang Street are eroding the original pure and transparent Sanyang water body.
The more terrible threat is that land and water bodies are in danger of being eroded in large quantities. Many people are eyeing Sanyang Wetland, and some departments have put forward requisition requirements, which is in danger of being eroded by a large number. Sanyang wetland is only 2 kilometers away from the new city center and has become the frontier of rapid urban growth. As the "kidney of the city", Sanyang Wetland needs to be protected urgently. Strengthen the protection of wetland natural ecosystem, give play to the ecological effect of wetland, and turn Sanyang wetland into a tourist attraction. The Management Committee and Planning Bureau of Wenzhou Ecological Park invited more than a dozen people from Wenzhou cultural circles to hold a seminar on Sanyang Wetland Culture in Wenzhou Ecological Park to discuss how to inject Wenzhou local culture into the first phase of the construction of the working wetland park starting next year, so as to make people and nature more harmonious.
In the urban area of Wenzhou, there are mountains in the city, and the water turns around the mountains. In the north, it faces the Oujiang River, which integrates mountains, waters, continents, islands and rivers. The southern water network is dense and the urban landscape environment is beautiful. Wenzhou Ecological Park is one of the nine strategic projects in Wenzhou. We must fully consider how to maximize the ecological, social and economic benefits and protect Wenzhou's "green heart" and "green lungs", which is the need to build Wenzhou into a landscape city, a dynamic city, a powerful city and a harmonious city.
Sanyang Wetland covers an area of 13.6 square kilometers, and consists of 65,438 islands+0,665,438 islands. Sanyang wetland is densely covered with water networks, villages are arranged along the river, and houses are built by water. In spring and March, the riverside is full of lush green trees, cuckoos and flying swallows. Recently, the fruit trees on the island are covered with orange oranges. The natural scenery is unique. Zhang Cong, the minister of the Ming Dynasty, once praised Sanyang with the poem "The sunset is boating in the orange pond, and the dusk is near a paradise". Now, according to the planning scheme, Sanyang Wetland will be built into an ecological park of "orange Pufangzhou, egret wild duck, water chestnut lotus root and river net family".
Relevant cultural experts expressed their opinions at the forum and a hundred schools of thought contended. Some require that Sanyang Wetland be fixed on the words "clear, quiet and green", and that the river network be clean, the spirit be quiet and the greening be good, so that visitors entering Sanyang can feel the original ecological style of harmony between people and water. It is also suggested to develop less and protect more Sanyang wetlands, and try to show tourists an original Sanyang. Some people build concrete buildings, arrange to step on cruise ships and set up electric cruise ships to walk across rivers to avoid noise and machine noise from damaging the environment. It has been suggested that the inland river network of wetland coexists with land, and the development of water and land should reflect harmonious planning and cannot deviate from the principle of "water" and "farmers who have lived here for generations". In the transformation of old villages, we can consider building the architectural pattern of "front harbor and backyard", combining with local folk characteristics, we can build the purchasing center of citrus and other crops, the bridge cultural center in southern Zhejiang and the door gods' confluence in the south of the Yangtze River, all of which are the reappearance of native wood culture. Cultural planning should be done well and fully integrated into architectural planning. Recently, the revision of the regulatory detailed planning of Sanyang Wetland passed the expert review and entered the online pre-approval publicity stage. With the upgrading of wetland park planning, high-quality buildings are selected here, and the surrounding facilities are becoming more and more mature. An ecologically livable residential plate has gradually entered people's field of vision.
New planning to create a new bright spot in the city
As one of the three highlights of our city, the planning and construction of Sanyang Wetland Park has attracted much attention. After revision, the planning scope of Sanyang Wetland Park reaches Ouhai Avenue in the north, Wen Rui Avenue in the west, Zhongxing Avenue in the east and Luoda Mountain in the south, with a total area of 1 1.66 square kilometers.
Sanyang Wetland is known as "Venice in South Zhejiang" because of its dense water network and beautiful natural scenery. In the future, Sanyang Wetland Park will be based on high-quality ecological environment, relying on history and culture, improve tourism service facilities, strengthen the interaction between tourism and various industries, and build a national wetland park integrating ecological conservation, scientific research, popular science education and leisure tourism.
From the overall spatial layout, the wetland park will adopt the structure of "one ring, one belt, two pieces and ten districts". "One ring" is based on the main ring road inside the wetland park, which connects various functional areas in series to form a peripheral buffer isolation belt. "Belt" is the transportation hub belt and the reception service belt. Relying on Nanxian dike, it radiates to both sides of the wetland. As the main traffic in the east-west direction of the park, it is the main traffic transfer and service group in the reception area in series. "Two movies" are moving from the north to the south, and they are moving towards dynamic leisure movies. Combined with the first phase project of the park, it mainly focuses on wetland scenic spots, cultural display and popular science demonstration. Static is an ecological demonstration film, which emphasizes ecological protection and popular science education in combination with the ultimate goal of the National Wetland Park.
"Ten Zones" refers to the ten functional zones that constitute the wetland park, including water activity zone, local culture zone, wetland demonstration zone, reception service zone, science and technology exhibition zone, agricultural experience zone, ecological rest zone, wedding theme zone, conservation and breeding zone and wetland leisure zone.
According to reports, the park road project of the first phase of the wetland is expected to be fully constructed in June 5438+065438+ 10; The landscape project has been approved and the construction drawing design has been completed. The project is divided into four sections, of which the I section has completed the construction bidding and entered the site, and the other sections are scheduled to enter the site in June165438+1October. The construction project has completed the architectural scheme design and is entering the preliminary design stage. Construction is expected to start in the first half of next year.