“Why is the forest such an effective agent in the prevention of soil erosion and in feeding the springs and rivers? The forest does two things: (1) the trees and undergrowth break up the rainfall into fine spray and the litter on the ground protects the soil from erosion; (2) the residues of the trees and animal life met with in all woodlands are converted into humus, which is then absorbed by the soil underneath, increasing its porosity and waterholding power. The soil cover and the soil humus together prevent erosion and at the same time store large volumes of water. These factors -- soil protection, soil porosity, and water retention -- conferred by the living forest cover, provide the key to the solution of the soil erosion problem. All other purely mechanical remedies such as terracing and drainage are secondary matters, although of course important in their proper place. The soil must have as much cover as possible; it must be well stocked with humus so that it can drink in and retain the rainfall. It follows, therefore, that in the absence of trees there must be a grass cover, some cover-crop, and ample provision for keeping up the supply of humus." (An Agricultural Testament)” ForestsSoil Erosion Author:Sir Albert Howard
“...erosion control in Japan is like a game of chess. The forest engineer, after studying his eroding valley, makes his first move, locating and building one or more check dams. He waits to see what Nature's response is. This determines the forest engineer's next move, which may be another dam or two, an increase in the former dam, or the construction of side retaining walls. After another pause for observation, the next move is made and so on until erosion is checkmated." (An Agricultural Testament)” Non FictionSoil Erosion Author:Sir Albert Howard
“Why is the forest such an effective agent in the prevention of soil erosion and in feeding the springs and rivers? The forest does two things: (1) the trees and undergrowth break up the rainfall into fine spray and the litter on the ground protects the soil from erosion; (2) the residues of the trees and animal life met with in all woodlands are converted into humus, which is then absorbed by the soil underneath, increasing its porosity and waterholding power. The soil cover and the soil humus together prevent erosion and at the same time store large volumes of water. These factors -- soil protection, soil porosity, and water retention -- conferred by the living forest cover, provide the key to the solution of the soil erosion problem." (An Agricultural Testament)” Non FictionSoil ErosionForsts Author:Sir Albert Howard