ACCT 2220 Study Guide - Final Guide: Aquatic Plant, Tillage, Soil Retrogression And Degradation
14 Sep 2016
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Document Summary
Erosion if the process that transforms soil into sediment. Soil erosion that takes place naturally without the influence of human activities is termed geological erosion. Wears down hills through deposition of eroded sediments. Accelerated erosion occurs when people disturb the soil or natural vegetation by overgrazing livestock. Erosion damages the site on which it occurs and also has undesirable effects off site in the larger environment. High turbidity prevents sunlight from penetrating the water and reduces photosynthesis and survival of the submerged aquatic vegetation. Sheet erosion is where splashed soil is removed more or less uniformly. The universal soil loss equation is the following: A = r x k x ls x c x p. The rainfall erosivity factor, r represent the driving force for sheet and rill erosion which takes into consideration total rainfall and intensity and seasonal distribution of the rain. The soil erodibility factor, k, indicates a soil"s inherent susceptibility to erosion.
