Photo taken on Sept. 4, 2022 shows the view of a wetland in Fuyuan, northeast China's Heilongjiang Province. Fuyuan has been making persistent efforts to improve local ecological environment, attracting tourists with its distinctive cultural tourism industry. (Xinhua/Wang Jianwei)

Cranberries are pictured at a planting base in Fuyuan, northeast China's Heilongjiang Province, Sept. 4, 2022. Fuyuan has been making persistent efforts to improve local ecological environment, attracting tourists with its distinctive cultural tourism industry. (Xinhua/Lan Hongguang)

Photo taken on Sept. 3, 2022 shows the sunset scenery at Dongji Pavilion in Fuyuan, northeast China's Heilongjiang Province. Fuyuan has been making persistent efforts to improve local ecological environment, attracting tourists with its distinctive cultural tourism industry. (Xinhua/Lan Hongguang)

Freshwater fish are pictured in a fish culture museum in Fuyuan, northeast China's Heilongjiang Province, Sept. 3, 2022. Fuyuan has been making persistent efforts to improve local ecological environment, attracting tourists with its distinctive cultural tourism industry. (Xinhua/Lan Hongguang)

Photo taken on Sept. 4, 2022 shows the sunrise scenery at Dongji Pavilion in Fuyuan, northeast China's Heilongjiang Province. Fuyuan has been making persistent efforts to improve local ecological environment, attracting tourists with its distinctive cultural tourism industry. (Xinhua/Lan Hongguang)

Photo taken on Sept. 4, 2022 shows the sunrise scenery at Dongji Pavilion in Fuyuan, northeast China's Heilongjiang Province. Fuyuan has been making persistent efforts to improve local ecological environment, attracting tourists with its distinctive cultural tourism industry. (Xinhua/Wang Jianwei)

Photo taken on Sept. 3, 2022 shows a fish farm in Fuyuan, northeast China's Heilongjiang Province. Fuyuan has been making persistent efforts to improve local ecological environment, attracting tourists with its distinctive cultural tourism industry. (Xinhua/Lan Hongguang)