Persistent Link:
http://hdl.handle.net/10150/301042
Title:
Simple Time-Power Functions for Rainwater Infiltration and Runoff
Author:
Dixon, R. M.; Simanton, J. R.; Lane, L. J.
Affiliation:
Science and Education Administration, Southwest Rangeland Watershed Research Center, Tucson, AZ 85705
Issue Date:
15-Apr-1978
Rights:
Copyright ©, where appropriate, is held by the author.
Collection Information:
This article is part of the Hydrology and Water Resources in Arizona and the Southwest collections. Digital access to this material is made possible by the Arizona-Nevada Academy of Science and the University of Arizona Libraries. For more information about items in this collection, contact anashydrology@gmail.com.
Publisher:
Arizona-Nevada Academy of Science
Journal:
Hydrology and Water Resources in Arizona and the Southwest
Abstract:
The equations of Darcy, Kostiakov, Ostashev, Philip, and four modified Philip equations were evaluated for use in predicting and controlling rainwater infiltration and rainfall excess in crop and rangelands. These eight equations were least- square fitted to data from ring, border-irrigation, closed-top, and sprinkling infiltrometers. Kostiakov's equation satisfied the evaluation criteria better than the other seven equations. The parameters of Kostiakov's equation were physically interpreted by relating their magnitudes to some physical, biological, and hydraulic characteristics of the infiltration system. These characteristics included several infiltration abatement and augmentation processes and factors that are controlled at the soil surface by land management practices. The eight equations were also fitted to rainfall data to permit calculating runoff from small surface areas about the size of a typical crop plant. Comparison of the regression curves for infiltration and rainfall suggested that land management practices that appropriately alter the soil surface will permit wide-range control of infiltration, runoff, and erosion; and thereby achieve conservation and more efficient use of soil and water resources for crop production. The most important soil surface conditions affecting infiltration were microroughness, macroporosity, plant litter, and effective surface head.
Keywords:
Hydrology -- Arizona.; Water resources development -- Arizona.; Hydrology -- Southwestern states.; Water resources development -- Southwestern states.; Infiltration; Rainfall-runoff relationships; Runoff; Runoff forecasting; Soil water movement; Infiltrometers; Irrigation practices; Rain water; Rainfall disposition; Air-earth interfaces; Equations; Forecasting; Regression analysis; Erosion
ISSN:
0272-6106

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleSimple Time-Power Functions for Rainwater Infiltration and Runoffen_US
dc.contributor.authorDixon, R. M.en_US
dc.contributor.authorSimanton, J. R.en_US
dc.contributor.authorLane, L. J.en_US
dc.contributor.departmentScience and Education Administration, Southwest Rangeland Watershed Research Center, Tucson, AZ 85705en_US
dc.date.issued1978-04-15-
dc.rightsCopyright ©, where appropriate, is held by the author.en_US
dc.description.collectioninformationThis article is part of the Hydrology and Water Resources in Arizona and the Southwest collections. Digital access to this material is made possible by the Arizona-Nevada Academy of Science and the University of Arizona Libraries. For more information about items in this collection, contact anashydrology@gmail.com.en_US
dc.publisherArizona-Nevada Academy of Scienceen_US
dc.identifier.journalHydrology and Water Resources in Arizona and the Southwesten_US
dc.description.abstractThe equations of Darcy, Kostiakov, Ostashev, Philip, and four modified Philip equations were evaluated for use in predicting and controlling rainwater infiltration and rainfall excess in crop and rangelands. These eight equations were least- square fitted to data from ring, border-irrigation, closed-top, and sprinkling infiltrometers. Kostiakov's equation satisfied the evaluation criteria better than the other seven equations. The parameters of Kostiakov's equation were physically interpreted by relating their magnitudes to some physical, biological, and hydraulic characteristics of the infiltration system. These characteristics included several infiltration abatement and augmentation processes and factors that are controlled at the soil surface by land management practices. The eight equations were also fitted to rainfall data to permit calculating runoff from small surface areas about the size of a typical crop plant. Comparison of the regression curves for infiltration and rainfall suggested that land management practices that appropriately alter the soil surface will permit wide-range control of infiltration, runoff, and erosion; and thereby achieve conservation and more efficient use of soil and water resources for crop production. The most important soil surface conditions affecting infiltration were microroughness, macroporosity, plant litter, and effective surface head.en_US
dc.subjectHydrology -- Arizona.en_US
dc.subjectWater resources development -- Arizona.en_US
dc.subjectHydrology -- Southwestern states.en_US
dc.subjectWater resources development -- Southwestern states.en_US
dc.subjectInfiltrationen_US
dc.subjectRainfall-runoff relationshipsen_US
dc.subjectRunoffen_US
dc.subjectRunoff forecastingen_US
dc.subjectSoil water movementen_US
dc.subjectInfiltrometersen_US
dc.subjectIrrigation practicesen_US
dc.subjectRain wateren_US
dc.subjectRainfall dispositionen_US
dc.subjectAir-earth interfacesen_US
dc.subjectEquationsen_US
dc.subjectForecastingen_US
dc.subjectRegression analysisen_US
dc.subjectErosionen_US
dc.identifier.issn0272-6106-
dc.identifier.urihttp://hdl.handle.net/10150/301042-
dc.identifier.journalHydrology and Water Resources in Arizona and the Southwesten_US
dc.typetexten_US
dc.typeProceedingsen_US
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