Beijing, May 8 (Youth.cn) - Photo taken in Dianxihe Wetland Park in Honghe Hani and Yi Autonomous Prefecture in Yunnan Province on May 6th. The river is clean and the riverbanks are green. The landscape is reflected by the river and forms a lush and green ecological picture. These years, by reinforcing protection of the river, clean river and sky can be always seen in this park. With the improvement of water quality and greening rate, the ecological environment increases happiness of citizens. Photo/CFP