Aerial view of Lanzhou section of Yellow River

An aerial drone photo taken on Oct. 17, 2024 shows Lanzhou Concert Hall on the bank of the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 24, 2024 shows a view along the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 24, 2024 shows a view along the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 24, 2024 shows a view along the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 23, 2024 shows a view along the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 26, 2024 shows the Yellow River pavilion along the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 23, 2024 shows a view along the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 24, 2024 shows a view of the Marathon Park along the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 26, 2024 shows Shen’an Bridge over the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Oct. 17, 2024 shows a view of Yantan Park along the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 26, 2024 shows the Lanzhou Olympic Center along the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 23, 2024 shows Zhongshan Bridge over the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 26, 2024 shows a view of Yintan wetland park along the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Oct. 17, 2024 shows waterwheels along the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 23, 2024 shows a speedboat sailing across the Zhongshan Bridge of the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 23, 2024 shows a view along the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Oct. 17, 2024 shows a view of Yantan Park along the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Oct. 17, 2024 shows a ship sailing on the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 23, 2024 shows Jinyan Bridge over the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 25, 2024 shows people visiting the statue “Yellow River — The Mother” in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Oct. 17, 2024 shows a view of Yanchangpu pier of the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 23, 2024 shows a view along the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 24, 2024 shows water wheels along the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 25, 2024 shows a view of Longyuan Park along the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 24, 2024 shows people playing football in a sports park on the south bank of the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 26, 2024 shows Yintan Bridge over the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Oct. 17, 2024 shows a view of the Marathon Park along the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 24, 2024 shows the Yantan Bridge over the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)

An aerial drone photo taken on Sept. 23, 2024 shows people visiting Zhongshan Bridge over the Yellow River in Lanzhou, northwest China’s Gansu Province. Lanzhou, once a transportation hub, a military fortress and an important commercial area along the ancient Silk Road, is the only provincial capital where the Yellow River runs through. The Lanzhou section of the main stream of the Yellow River is 150.7 kilometers long, of which 47.5 kilometers flows through the urban area. The Yellow River is also an important source of drinking water in Lanzhou. Thanks to continuous efforts, the ecological environment on both sides of the Lanzhou section of Yellow River is constantly improving. (Xinhua/Chen Bin)