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Water Portal / Rainwater Harvesting / Groundwater recharge / Contour trenches

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[[Image:Contour_Trench.JPG|thumb|right|400px|An example of contour trench in Kitenden, Vietnam. <br> Source: Westerveld Conservation Trust]]

Contour trenches are not irrigation channels, rather they are trenches dug to slow down and attract runoff water which then infiltrates into the soil. Small scale contour trenches can also be used within field level.

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