Stone and vegetative bunds
This
is an indigenous technical knowledge in which a structure with an embankment of
stones, or soil and stones is made along the contour and the stone structure is
stabilized using vegetation, such as fodder trees and grasses. Stone bund
controls the soil erosion from the drainage basins and water gets more time to enter
into the soil. Apart from the above structure, planting of hedges, grasses, or
shrubs on the contour can check the runoff velocity drastically and increase
the time for water to infiltrate into the soil, facilitate sedimentation and
deposition of eroded material by reducing the carrying capacity of the overland
flow. Because of the conservation of topsoil and water in this structure, the
yield of the crops is improved and also, it increases the access to drinking
water by increasing the water table.