Erosion: Irrigation-Induced

Authored by: Robert E. Sojka , David L. Bjorneberg

Managing Soils and Terrestrial Systems

Print publication date:  July  2020
Online publication date:  July  2020

Print ISBN: 9781138342651
eBook ISBN: 9780429346255
Adobe ISBN:

10.1201/9780429346255-6

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Abstract

Most irrigation is on fragile arid soils that have enormous crop yield potential when irrigated. However, the yield potential is easily lost if the thin veneer of topsoil is eroded. Runoff and irrigation return flows (necessary in many surface irrigation schemes) deliver sediment (human, animal and plant pathogens; nutrients and pesticides) to downstream fields and riparian waters. These pollutants accumulate in runoff primarily as a result of erosion.

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