Photo taken on July 21, 2017 shows a part of the irrigation system in the windbreak forest near a pass in Tacheng of northwest China's Xinjiang Uygur Autonomous Region. The pass, nicknamed Laofengkou meaning windy pass, once one of the most difficult paths that are easily affected by natural disasters as wind and snowstorms in Xinjiang, is now home of large areas of oasis protected by a 28-kilometer forest belt. (Xinhua/Hu Huhu)
