Water quality of Dian Lake improved a lot in SW China's Yunnan
Xinhua,November 16, 2017 Adjust font size:
Boats sail on the Dian Lake in Kunming, southwest China's Yunnan Province, Sept. 30, 2017. The water quality of Dian Lake has been improved a lot after years of water ecosystem restoration and wastewater management. (Xinhua/Lin Yiguang)