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On July 22, members of the expedition from the Institute of Soil and Water Conservation of the Yangtze River Academy of Sciences conducted a vegetation sample survey in the Zhimenda section of the Tongtian River. Photo by Xinhua News Agency reporter Liu Shiping
The Zhimenda section of the Tongtian River taken on July 22 (drone photo). Photo by Xinhua News Agency reporter Liu Shiping
This is a photo taken on July 22 at the Tongtian River Zhimen Hydrological Station (drone photo). Photo by Xinhua News Agency reporter Liu Shiping
On July 22, Liu Han, a scientific expedition member from the Institute of Water Environment of the Yangtze River Academy of Sciences, collected plankton in the Zhimenda section of the Tongtian River. Photo by Xinhua News Agency reporter Li Jinfeng
Xu Zhicheng (left), a member of the research expedition from the Institute of Rivers of the Yangtze River Academy of Sciences, collects sediment from the riverbed in the Zhimenda section of the Tongtian River on July 22. Photo by Xinhua News Agency reporter Li Jinfeng