Mots-clés
Anhui Bassin-versant Chine Erosion chimique Forêt Géochimie Modèle Météorisation Pluie acide Pédogenèse Régression multiple Zone subtropicale Acid rain Anhui Chemical erosion China Forest Geochemistry Model Multiple regression Pedogenesis Subtropical zone Watershed Weathering Bosque China Cuenca hidrográfica Erosión química Geoquímica Lluvia ácida Meteorización Modelo Pedogénesis Regresión múltiple Zona subtropicalWeathering and soil formation rates based on geochemical mass balances in a small forested watershed under acid precipitation in subtropical China
Auteur(s) et Affiliation(s)
HUANG, L.-M.
State Key Lab. of Soil and Sustainable Agriculture, Inst. of Soil Sciences, CAS, Nanjing, Chine
Univ. of Chinese Academy of Sciences, Beijing, Chine
ZHANG, G.-L.
State Key Lab. of Soil and Sustainable Agriculture, Inst. of Soil Sciences, CAS, Nanjing, Chine
YANG, J.-L.
State Key Lab. of Soil and Sustainable Agriculture, Inst. of Soil Sciences, CAS, Nanjing, Chine
Univ. of Chinese Academy of Sciences, Beijing, Chine
Description :
In this study, rates of weathering and soil formation on granite and their dependences on acid precipitation were studied in a small forested watershed, Fengxingzhuang (FXZ), in subtropical China using geochemical mass balance equations and multiple regression analysis. Atmospheric input from wet and dry deposition, and stream output through runoff were monitored from March, 2007 to February, 2010. The physical and chemical properties of soil and granite rock were also determined. The results show that acid precipitation is very severe in the FXZ forested watershed. A proposed model that quantitatively describes weathering and soil formation rates is a combined product of rainfall amount and air temperature resulting from multiple regressions, which improves the prediction from simple linear regression.
Type de document :
Article de périodique
Source :
Catena (Giessen), issn : 0341-8162, 2013, vol. 105, p. 11-20, nombre de pages : 10, Références bibliographiques : 46 ref.
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)