Soil Erosion By Overland Flow And Raindrop Splash On Three Mountain Soils

Excerpt from Soil Erosion by Overland Flow and Raindrop Splash on Three Mountain Soils A voluminous amount of literature exists on soil erosion from forest and range lands. A large portion of this literature has been concerned with soil factors and their effects on erosion. Bryan (1968) worked with 22 indices of soil erodibility that have been reported in the literature. He concluded that none of the soil indices was reliable in operation and capable of universal application. He expressed doubt that such an index could be developed, but concluded that the percentage weight of water-stable aggregates greater than 3 mm. In diameter was probably the most reliable index of soil erodibility available. Many important questions concerning the influence of soil factors on erosion proc esses remain unanswered. This situation is partially due to the fact that soil factors are difficult to isolate in the presence of vegetal factors. Another difficulty has been the multiplicity of soil erosion criteria. Weight of eroded soil, numerous measures of soil aggregation, stream turbidity, measurements from various types of erosion gages, and several soil indices have all been used as erosion criteria. In addition to vegetal cover and soil variables, the dominant factors controlling erosion are rainfall characteristics and topography. However, on forest and range lands, the effect of these two factors is not well known. Most of our information concerning rainfall factors and topographic factors has been obtained from studies on farmlands. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.