April 22, 2020, the 51st world earth day, aerial photography of the ancient Huaihe River National Wetland Park in Huai`an City is full of spring. Huai`an City adheres to the principle of combining protection and restoration, maintaining the original ecology of wetland, and carries out projects such as living water purification, control of the ancient Huaihe River hub, sewage interception and diversion along the river, and continues to carry out protective restoration of Wetland Park. Today`s ancient Huaihe River Wetland Park is a natural oxygen bar and a rare tourist attraction in the city center due to its transitional climate characteristics and diversified water and grass vegetation.
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