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Erosion: Irrigation-induced

Lehrsch, G.A. and Lentz, R.D. and Bjorneberg, D.L. and Sojka, R.E. (2014) Erosion: Irrigation-induced. In: Reference module in Earth Systems and Environmental Sciences (Online database). pp. 1-11. Elsevier, Oxford, U.K. Available: http://dx.doi.org/10.1016/B978-0-12-409548-9.09019...

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Abstract

Soil can be eroded by sprinkler or surface irrigation. Once sprinkler droplet kinetic energy detaches soil, overland flow transports the sediment downslope and off-site. Protecting the soil surface, increasing sprinkler wetted diameters, and tilling to increase infiltration and thereby lessen overland flow are effective control measures. Runoff minimization and management are key to reducing erosion induced by either sprinkler or surface irrigation. Slowing furrow stream velocities with mulch or crop residues reduces the flow’s hydraulic shear and, in turn, detachment of soil from furrow wetted perimeters. Stabilizing surface soil with, for example, polyacrylamide, bio-polymers, or whey keeps soil in place and helps maintains acceptable water quality in nearby surface water

Item Type: Article
NWISRL Publication Number: 1541
Subjects: Irrigation > Sprinkler irrigation
Soil > Erosion
Water > Water management
Depositing User: Dan Stieneke
Date Deposited: 11 Mar 2015 19:35
Last Modified: 11 Mar 2015 19:38
Item ID: 1585
URI: https://eprints.nwisrl.ars.usda.gov/id/eprint/1585