Once the keypoints and keylines have been identified, the control of water movement over the land can be achieved through a keyline pattern of cultivation.
By cultivating parallel to identified keylines, both above and below the line, a cultivation pattern is developed which spreads the runoff evenly across the uplands and does not allow the water to follow its natural path and concentrate in the valleys. This aids in the stabilization of the valley and increases its ability to resist erosion.
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