ENVS 3080 Study Guide - Final Guide: Bulk Density, Ultimate Tensile Strength, Soil Structure

• School: University of Guelph
• Department: Environmental Sciences
• Course: ENVS 3080
• Professor: Cheryl Fitz Gibbon

Document Summary

For water erosion, energy is applied by water falling on and flowing over the surface, resulting in soil being loosened (detached), carried (transported) and then dropped somewhere else (deposited) Case of wind erosion, energy is applied by wind blowing over the soil surface, picking up particles and carrying them to a new location where they are deposited. Raindrops impacting the soil surface disperse and splash the soil, displacing particles from their original position. Caused by the bombardment of soil surface by impacting raindrops. Strike the soil like small bombs forming craters or cavities. The depth of craters equals the depth of raindrop energy penetration. The formation of craters influences soil erosion: mathematical relationships have been developed to estimate the crater (cid:272)hara(cid:272)teristi(cid:272)s as follo(cid:449)s d = k r (cid:894)(cid:652)v(cid:1006)(cid:895) (cid:1005)/(cid:1007) R, p and v are radius in cm. The crater volume (cm3) and area (cm2) are calculated as per eq. V = 1 (cid:1007) (cid:651)d(cid:1006) (cid:894)(cid:1007)d(cid:1006) + (cid:1005)(cid:1006)d(cid:1006)