Villagers work at a ditch construction site in Xiaying town in Jixian County of Tianjin Municipality, China, May 12, 2010. Tianjin has launched its 2010 Jixian county water-soil conservation project, which aims to improve 14 square kilometers of water and soil erosion. Jixian county is the only domestic water source for Tianjin's six million urban population. [Xinhua]
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