Mots-clés
Chine ; Couverture végétale ; Eau du sol ; Erosion des sols ; Erosion hydrique ; Expérimentation ; Infiltration ; Pente de versant ; Précipitation ; Shaanxi ; Simulation de pluie ; YanglingChina ; Experimentation ; Infiltration ; Plant cover ; Precipitation ; Rainfall simulation ; Shaanxi ; Slope gradient ; Soil erosion ; Soil water ; Water erosionAgua del suelo ; Chensi ; China ; Cobertura vegetal ; Erosión de los suelos ; Erosión hídrica ; Experimentación ; Inclinación de la vertiente ; Infiltración ; Precipitación ; Simulacíon de lluviaEffects of rainfall intensity, underlying surface and slope gradient on soil infiltration under simulated rainfall experiments
Auteur(s) et Affiliation(s)
HUANG, J.
College of Water Resources and Architecture Engineering, Northwest AandF Univ., Yangling, Chine
Inst. of Water Saving Agriculture in Arid Regions of China, Northwest A and F Univ., Yangling, Chine
National Engineering Research Center for Water Saving Irrigation, Yangling, Chine
WU, P.
Inst. of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resources, Shaanxi, Yangling, Chine
ZHAO, X.
College of Water Resources and Architecture Engineering, Northwest AandF Univ., Yangling, Chine
Inst. of Water Saving Agriculture in Arid Regions of China, Northwest A and F Univ., Yangling, Chine
National Engineering Research Center for Water Saving Irrigation, Yangling, Chine
Description :
This paper describes a study in which simulated rainfall events, conduced at the field monitoring station in Linghou, Yangling District, Shaanxi, were used to study the effects of various factors (vegetation cover, rainfall intensity, and slope angle) on the soil moisture increase after rainfall and the infiltration recharge coefficient (IRC). Soils hosting 3 different plants (purple medic, PM; spring wheat, SW; and ryegrass, RS) were considered, along with bare soil (BL). These soil surfaces were tested with 4 different slopes and subjected to 5 different rainfall intensities. It is showed that : Vegetation cover yields a greater soil moisture increase than do bare land; Water storage initially grows and then reduces as the rain intensity rise; Water storage increase firstly rises but then falls as the slope grew from 8.8 to 36.4%; IRC rise with growing coverage and falling rain intensity, angle, initial moisture.
Type de document :
Article de périodique
Source :
Catena (Giessen), issn : 0341-8162, 2013, vol. 104, p. 93-102, nombre de pages : 10, Références bibliographiques : 2 p.
Date :
2013
Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)