This aerial photo taken on May 5, 2021 shows citizens walking at Huancheng park in Hefei City, east China's Anhui Province. Hefei has five national wetland parks and three provincial wetland parks, with a wetland protection rate of 75 percent. It was accredited on Nov. 10, 2022 by the Ramsar Convention as an international wetland city. (Xinhua/Zhang Duan)
This photo taken on Spet. 6, 2022 shows scenery of a wetland around the Chaohu Lake in Hefei City, east China's Anhui Province. Hefei has five national wetland parks and three provincial wetland parks, with a wetland protection rate of 75 percent. It was accredited on Nov. 10, 2022 by the Ramsar Convention as an international wetland city. (Xinhua/Liu Junxi)
This aerial photo taken on Nov. 9, 2022 shows migrant birds on the Chaohu Lake in Hefei City, east China's Anhui Province. Hefei has five national wetland parks and three provincial wetland parks, with a wetland protection rate of 75 percent. It was accredited on Nov. 10, 2022 by the Ramsar Convention as an international wetland city. (Xinhua/Zhang Duan)
This aerial photo taken on Oct. 29, 2022 shows redwoods around the Chaohu Lake in Hefei City, east China's Anhui Province. Hefei has five national wetland parks and three provincial wetland parks, with a wetland protection rate of 75 percent. It was accredited on Nov. 10, 2022 by the Ramsar Convention as an international wetland city. (Photo by Wang Shibao/Xinhua)
A citizen plays the instrument at Huancheng park in Hefei City, east China's Anhui Province, May 5, 2021. Hefei has five national wetland parks and three provincial wetland parks, with a wetland protection rate of 75 percent. It was accredited on Nov. 10, 2022 by the Ramsar Convention as an international wetland city. (Xinhua/Zhang Duan)
This aerial photo taken on Aug. 5, 2022 shows scenery of a wetland around the Chaohu Lake in Hefei City, east China's Anhui Province. Hefei has five national wetland parks and three provincial wetland parks, with a wetland protection rate of 75 percent. It was accredited on Nov. 10, 2022 by the Ramsar Convention as an international wetland city. (Photo by Ye Yuting/Xinhua)
This photo taken on Dec. 30, 2020 shows scenery of Shufengwan sports park in Hefei City, east China's Anhui Province. Hefei has five national wetland parks and three provincial wetland parks, with a wetland protection rate of 75 percent. It was accredited on Nov. 10, 2022 by the Ramsar Convention as an international wetland city. (Photo by Qiu Shaolin/Xinhua)