The debris-clearing operations in Chongqing's Wushan section of the Yangtze River can remove around 20,000 tons of waste annually, playing a crucial role in enhancing water quality and protecting the water ecology.

Located at the eastern gateway of Chongqing, Wushan county serves as the final ecological barrier for the upper reaches of the Yangtze River. The length of the Yangtze River's main stream and secondary rivers within Wushan totals 183 kilometers, said Yu Zhihua, head of the county's debris-clearing team, on Wednesday.