In pics: Chatan Weir ancient irrigation system in China's Jiangxi

Environmental protection team members patrol the Chatan Weir ancient irrigation system in Taihe County of Ji'an, east China's Jiangxi Province, May 29, 2018. The Chatan Weir irrigation system has a history of over 1,000 years. While still serving nearby crop fields, the irrigation project was listed as a Heritage Irrigation Structure by the International Commission on Irrigation and Drainage in 2016. (Xinhua/Peng Zhaozhi)