Mots-clés
Agro-écosystème ; Bassin expérimental ; Bassin-versant ; Chine ; Erosion des sols ; Erosion hydrique ; Granite ; Guangdong ; Nutriment ; Qualité de l'eau ; Ruissellement ; Utilisation du sol ; Zone subtropicaleAgroecosystem ; China ; Experimental catchment ; Granite ; Guangdong ; Land use ; Nutrient ; Rill wash ; Soil erosion ; Subtropical zone ; Water erosion ; Water quality ; WatershedNutrient fluxes in the Shenchong Basin, Deqing County, South China
Special issue. Soil erosion in South China
Auteur(s) et Affiliation(s)
LAM, K.-C.
Dep. Geography, Chinese Univ. of Hong Kong, Shatin, Hong-Kong
LUK, S.-H.
Dep. Geography, McMaster Univ., Hamilton, Canada
Description :
In the severely eroded granitic area of south China, the hillslopes are the source areas of, and the valleys are the sinks for, nutrients, water and sediments. The study of nutrient flux is important from both the soil fertility and water quality perspectives. On denuded slopes, nutrient loss depletes soil fertility and makes afforestation effort difficult. The re-deposition of nutrients bound to the sediments in downslope areas determines the soil fertility in alluviated valleys and the potential for developing these lands for beneficial use. Nutrients transported further down the fluvial system may affect the quality of the receiving water bodies.
Type de document :
Article de monographie
Source :
Catena (Giessen), issn : 0341-8162, 1997, vol. 29, n°. 2, p. 191-210, Collation : Illustration, Références bibliographiques : 15 ref.
Date :
1997
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)