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(Article of periodic en Anglais - 2012)

Document title

Characteristics of concentrated flow hydraulics for rangeland ecosystems : implications for hydrologic modeling

Authors(s) and Affiliation(s)

AL-HAMDAN O.Z. (1 2) ; PIERSON F.B. (1) ; NEARING M.A. (3) ; STONE J.J. (3) ; WILLIAMS C.J. (1) ; MOFFET C.A. (4) ; KORMOS P.R. (5) ; BOLL J. (2) ;
(1) USDA, Agricultural Research Service, Northwest Watershed Research Center, ID, Boise, ETATS-UNIS
(2) Dep. of Biological and Agricultural Engineering, Univ. of Idaho, Moscow, ETATS-UNIS
(3) USDA, Agricultural Research Service, Southwest Watershed Research Center, AZ, Tucson, ETATS-UNIS
(4) USDA, Agricultural Research Service, US Sheep Experiment Station, ID, Dubois, ETATS-UNIS
(5) Dep. of Geosciences, State Univ., ID, Boise, ETATS-UNIS

  • USDA, Agricultural Research Service, Exotic and Invasive Weeds Research Unit, NV, Reno, ETATS-UNIS

Abstract

This study investigates the hydraulics of concentrated flow using unconfined field experimental data over diverse rangeland landscapes within the Great Basin Region, United States. The results imply that the overall hydraulics of concentrated flow on rangelands differ significantly from those of cropland rills. Concentrated flow hydraulics on rangelands are largely controlled by the amount of cover or bare soil and hillslope angle. New predictive equations for concentrated flow velocity representing a diverse set of rangeland environments were developed. The resulting equations are applicable across a wide span of ecological sites, soils, slopes, and vegetation and ground cover conditions and can be used by physically-based rangeland hydrology and erosion models to estimate rangeland concentrated flow hydraulic parameters

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2012, vol. 37, no2 [pp. 157-168]

Bibliographic references : 1 p.

Collation : 5 fig., 9 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2227

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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