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Wetlands are known as the "kidneys of the earth", as well as titles such as "flood control dams", "natural reservoirs", "species banks", and "ecological cradles". Wetlands are a paradise for maintaining the ecological environment and maintaining biodiversity; to build a sponge city, wetlands are also inseparable. This program will go into Zhalong Wetland, Yellow River Estuary Wetland, Dongting Lake, Qinghai Lake and many other important wetlands to understand their ecological value.
