1. Contour farming - This is a farming practice in which crops are planted along the natural contours of the land, rather than up and down slopes. This helps to reduce the speed of water runoff, and thus reduces erosion.

2. Terracing - This is the practice of building ridges of earth across a slope, to create a series of level terraces. This can also help to reduce water runoff and erosion.

3. Planting vegetation - Plants help to hold the soil in place, and thus reduce erosion. This can be done by planting trees, shrubs, and grasses on slopes, or by using cover crops in agricultural fields.