A drone photo taken on March 17, 2025 shows a staff member checking an automatic water quality monitoring station by the Taipu River in Wujiang District of Suzhou City, east China's Jiangsu Province. In recent years, Wujiang District of Suzhou City has worked together with Qingpu District of Shanghai and Jiashan County of Zhejiang Province to promote green development through joint protection and governance of ecological environment, intelligent management and setting up emission trading systems, as part of a campaign to accelerate the construction of demonstration zones for green and integrated ecological development of the Yangtze River Delta. (Xinhua/Ji Chunpeng)