IGB

Connexion

(Article of periodic en Anglais - 2014)

Document title

Soil erosion processes on row sideslopes within contour ridging systems

Authors(s) and Affiliation(s)

LIU Q.J. (1) ; ZHANG H.Y. (1 2) ; AN J. (1) ; WU Y.Z. (1) ;
(1) Shandong Provincial Key Lab. of Soil Conservation and Environmental Protection, Univ., Linyi, CHINE
(2) State Key Lab. of Soil Erosion and Dry Land Farming on the Loess Plateau, Inst. of Soil and Water Conservation, CAS and Ministry of Water Resources, Yangling, CHINE

Abstract

In this study, 32 rainfall simulation experiments were conducted in order to analyze the effects of 2 different microtopography indices (row grade and field slope), 2 ridge geometry indices (ridge height and ridge width), and rainfall intensity on erosion of sandy brown soil with 2 replications. Based on the runoff and sediment yield time series, which was monitored over 1 min intervals, the soil erosion process was classified into periods of interrill or rill erosion. The results highlight that the interactions between the different factors, especially between ridge height, row grade, and rainfall intensity, play an important role during the erosion process by increasing runoff and sediment yield per min. Therefore, reducing the field slope and using high ridges may reduce contour failure during rainfall events

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2014, vol. 115 [pp. 11-18]

Bibliographic references : 44 ref.

Collation : 4 fig., 5 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2013.11.013

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
Refdoc record number (ud4) : 28337975 : Permanent link - XML version
Powered by Pxxo