Mots-clés
Chine ; Domaine aride ; Domaine semi-aride ; Erosion des sols ; Erosion hydrique ; Humidité du sol ; Loess ; Plateau ; Propriétés du sol ; Ravinement ; Shaanxi ; Variation spatialeArid area ; China ; Gully erosion ; Loess ; Plateau ; Semi-arid area ; Shaanxi ; Soil erosion ; Soil moisture ; Soil properties ; Spatial variation ; Water erosionAbarrancamiento ; Campo semiárido ; Campo árido ; Chensi ; China ; Erosión de los suelos ; Erosión hídrica ; Humedad del suelo ; Loess ; Meseta ; Propiedades del suelo ; Variación espacialSoil moisture variability along transects over a well-developed gully in the Loess Plateau, China
Auteur(s) et Affiliation(s)
GAO, X.
Inst. of Soil and Water Conservation, Chinese Academy of Science, Shaanxi, 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
Graduate Univ. of Chinese Academy of Sciences, Beijing, Chine
WU, P.
Inst. of Soil and Water Conservation, Chinese Academy of Science, Shaanxi, 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
ZHAO, X.
Inst. of Soil and Water Conservation, Chinese Academy of Science, Shaanxi, 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
SHI, Y.
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
WANG, J.
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
ZHANG, B.
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 :
The AA. examined soil moisture profiles and their variability along 3 transects traversing sidewalls of a well-developed gully with steep slopes in a hilly area of the Chinese Loess Plateau. Revised fitting functions developed and introduced by Famiglietti et al. (2008) captured with confidence the relationship between spatial variability (SD and CV) and spatial mean of moisture content (RMSE). Soil moisture clearly varied along the transects, the vertical distribution of soil moisture differed in different seasons, and correlation analysis showed that soil texture influenced the variability of surface soil moisture more strongly than terrain attributes (except during distinct rainfall events, when this pattern reversed). The results presented here should improve understanding of spatio-temporal variations in soil moisture profiles in well-developed gullies in the Loess Plateau, and potentially elsewhere.
Type de document :
Article de périodique
Source :
Catena (Giessen), issn : 0341-8162, 2011, vol. 87, n°. 3, p. 357-367, nombre de pages : 11, Références bibliographiques : 42 ref.
Date :
2011
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)