Liaoning: Big Bihai Jingtan to the people

In recent years, the ecological environment of the near -shore waters of the Bohai Sea has prominent, the quality of water has declined, and the coastal belt has been damaged to varying degrees. In order to continue to improve the ecological function of the coastal belt, since the end of 2018, my country has launched a combination of comprehensive governance of Bohai.

In April 2019, Liaoning Province issued the "Implementation Plan for Comprehensive Management of Bohai Province in Liaoning Province", which deployed 14 marine ecological restoration projects to restore the restoration of coastal wetlands to achieve a virtuous circle of marine ecosystems.

With the joint efforts of the provincial, municipal, and county -level governments and natural resource management departments, 14 ecological restoration projects of the Bohai Bohai Comprehensive Management Tackling of Liaoning Province have all been completed and accepted. Liaoning Province repaired a total of 2441 hectares of the wetland of the coastal wetland, and exceeded 541 hectares to complete the national task, with a completion rate of 128.5%.

Put the restore ecological function first

The ecological restoration project of the Bohai Comprehensive Governance of Liaoning Province has always adhered to the restoration of ecological functions in the first place. It aims to protect and repair the damaged marine ecosystem, enhance the function of marine ecosystems, improve the marine ecological environment, enhance marine life diversity, build marine ecology Security barrier, change the chaotic state of the coastline, and improve the cleanliness of the coastline.

Liaoning Tuanshan National Ocean Park (hereinafter referred to as Tuanshan Ocean Park) is located in the offshore of Gaizhou. For a long time, the sea farming around the ocean park has occupied near -shore beaches, which has affected the marine ecological environment. Mainly manifested in two aspects: First, the breeding occupies near the shore beach coating, affecting the water power circulation of wetland, causing the front of the coffin dams to rise, causing the loss of the wetland wetland, the wetland ecological function is damaged. The ecological environment of the near -shore beach coating wetland has caused a secondary impact; the second is that the sea farming pool occupies the natural shoreline, causing the shoreline landscape and ecological function to be damaged.

Aiming at the problem of beach coating on the north side of the Tuanshan Ocean Park, the relevant ecological restoration projects are demolished by the sea breeding dams to restore the beach coating of the near -shore waters, the natural shoreline and the coastal wetland. The measures restore the reeds coated with the coastal beach on the north side of the Mountains and Ocean Park -the alkali pantrawed wetland ecosystem.

Through the implementation of ecological restoration projects, Tuanshan Ocean Park restoration areas have significantly improved the water power conditions and ecological environment of coastal wetland, the biodiversity has been improved, the ecosystem can be enhanced, the ecological functions of the coastline have been improved, and the area of ​​red beach has increased. The project completes 70.38 hectares of recovery beach, which improves the water power conditions of the beach in wetland. After the project was implemented, the seawater flow rate of about 75 hectares increased by 10%, and the new tide area was 14.2 hectares after repair. The project is completed by 2.12 kilometers to repair the natural shoreline, among which 0.79 kilometers of the natural shoreline restores the natural shoreline, and the natural attributes of the silt beach coating are restored to the front edge of the shoreline. The amount of biological amounts of sandworms in the region of the proliferation biological proliferation increased by an average increase of 175%, and the average increase of the non -offering area increased by 25%, which achieved the effect of sand silkworm proliferation, improved the biological habitat environment. Winter winter provides room for survival.

Grasp the key

The Dalinghe River originated in the borders of Liaoning Province and Hebei Province, with a total length of 447 kilometers and is the largest river in western Liaoning Province. Daling River has a rich type of animals in Haikou. Every year, a large number of birds inhabits and reproduce here, including national first -level protection animals -black -mounted gulls. However, in recent years, the construction of artificial dams has splitted the beach of the estuary, causing natural tide ditch to be damaged and wetland's habitats were damaged.

In response to the ecological problems existing in the area, the ecological restoration project of Dalinghekou is divided into "two steps". The first step is to demolish the artificial dam around the sea, realize the "return to the embankment to return to the sea", expand the area of ​​the bay waters, enhance the water body exchange capacity of the waters, and carry out ecological construction of the artificial shore after demolishing the artificial dam of the coffee weir. , Improve its ecological function. The second step is to open up the channel and the main river channel. Under the influence of water power, promote the natural recovery of the estuary coastal wetland. By planting local plants such as reeds after the demolition of the dam, it will improve the ability to restore regional biological diversity recovery capabilities and promote the ability to recovery in the area and promote the recovery capacity Improvement of the ecological function of the estuary wetland.

The Dalinghe project seizes the key point of "water power recovery" during the restoration of the coastal wetland. After the removal of artificial dams, the water power conditions in the repair area are restored by dredging the tidal ditch to provide basic conditions for subsequent natural recovery and achieved good good. The repair effect.

The project was renovated and restored the river port line 1 km and the estuary coastal wetland was 190 hectares. After the wetland repair, most of the dry water areas occupied by the breeding pool restore the flooding state; through the restoration of the wetland vegetation, the amount of vegetation and biological amount of wetland is improved, which provides habitat environment, wetland biodiversity and fishery resources for the growth of the beach. Get improved.

Broaden the space for residents

Through the implementation of marine ecological restoration projects, Liaoning Province has greatly improved the ecological landscape of the coastal wetland, significantly broaden the people's sea space, and produced obvious social benefits, economic and ecological benefits.

The Pearl Bay of the Taniyu Circle of Yingkou City, Liaoning Province has always been a coastal tourist resort, but since the 1980s, due to the acceleration of industrialization and urbanization, and the excessive development of marine resources, the ecological environment has been severely damaged. The most beautiful bay "disappeared, and it was urgent to rectify and repair.

Before the renovation and restoration of the Pearl Bay of Liaoning, the breeding cofferdam invaded the coastal wetland. After the renovation of the Natural Resources Department of Liaoning Province, after the renovation of the Pearl Bay of Liaoning, the coastal wetland and the sandy shoreline resumed the natural form. Photo Conferry of the Natural Resources Department of Liaoning Province

Aiming at the pearl bay area due to the development of marine ecological environment such as coastal wetland and shoreline damage, the ecological repair plan focuses on two "right medicines" in two aspects. The first is to restore the natural form of the coastal wetland, demolish 2.2 kilometers of the dyke of the sea, and restore 53 hectares of coastal wetlands that have been occupied by the breeding pond; implement the bay dredging project, clean up about 40 debris such as fish cage, fishing nets, and mud Thousands of cubic meters have been effectively repaired for 82 hectares of coastal wetlands. The second is comprehensive remediation of the shoreline. Through natural stone maintenance, the ability to prevent natural disasters such as coastal prevention storms; remove about 4,000 square meters of waste fishing houses and more than 300 waste fishing vessels, clean up coastal garbage, and carry out coastal terrain to organize. Conservation of 195,000 cubic meters of beaches, 972 meters on the sandy coastline and 425 meters of the base rock shoreline.

After the implementation of the Pearl Bay Ecological Repair Project, a newly added tourist and leisure place close to the sea has significantly broaden the people's sea space for the masses. At the same time, it also protects the precious natural shoreline resources. The buffer belt function builds a marine ecological security barrier and natural shore line pattern that is harmonious and harmonious in nature.

Source: China Natural Resources News

Author: Wang Zizhen Du Xinyuan

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