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(Article of periodic en Anglais - 2013)

Document title

A simple model for the transport of soil-dissolved chemicals in runoff by raindrops

Authors(s) and Affiliation(s)

DONG W. (1 2) ; WANG Q. (3 2) ; ZHOU B. (3) ; SHAN Y. (2) ;
(1) College of Water Conservancy and Architecture, Northeast Agricultural Univ., Heilongjiang, Harbin, CHINE
(2) State Key Lab. of Soil Erosion and Dryland Farming on the Loes Plateau, Inst. of Soil and Water Conservation, CAS, Univ., Yangling, CHINE
(3) Inst. of Water resources, Univ. Technology, Xi an, CHINE

Abstract

The development of a physically based model to simulate the transport of soil solutes in runoff has provided a better understanding of the mechanisms of transport and has assisted in the development of effective methods to control nutrient loss from soils and the pollution of waterways. Assuming that the exchange rate is controlled by raindrop splash, the AA. neglected the effects of diffusion. To calibrate their model, laboratory experiments were conducted on disturbed loessial soil with 3 initial soil-moisture contents under 3 rainfall intensities and 3 slope gradients. The model's simulated data agreed well with the experimental data, demonstrating that the refined model captured the temporal behaviour of solute transport in the runoff. This study provides a new approach to the modelling of chemical transport by investigating the effects of raindrops on sediments from soil in surface runoff

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2013, vol. 101 [pp. 129-135]

Bibliographic references : 47 ref.

Collation : 7 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2012.10.007

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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