Workers are planting watergrass in an artificial wetland, in a bid to improve the water quality in Fenhe River in Qingxu County in north China's Shanxi Province. Water from the river will first be diverted into the 18-hectare wetland and be filtered by the grass before flowing back into the river. 

The Fenhe River, the second-largest tributary of the Yellow River, was heavily polluted before, prompting the local government to take actions. 

The wetland is also expected to serve as a public recreation area.

(Cover image via VCG)

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