Mots-clés
Bassin-versant ; Chine ; Date 2012 ; Domaine aride ; Erosion des sols ; Humidité du sol ; Modèle numérique de terrain ; Pente de versant ; Propriétés du sol ; Ravinement ; Topographie ; Végétation ; YunnanArid area ; China ; Digital elevation model ; Gully erosion ; Slope gradient ; Soil erosion ; Soil moisture ; Soil properties ; Topography ; Vegetation ; Watershed ; YunnanAbarrancamiento ; Campo árido ; China ; Cuenca hidrográfica ; Erosión de los suelos ; Humedad del suelo ; Inclinación de la vertiente ; Modelo numérico de terreno ; Propiedades del suelo ; Topografía ; Vegetación ; YunnanThe distribution of and factors influencing the vegetation in a gully in the Dry-hot Valley of southwest China
Auteur(s) et Affiliation(s)
DONG, Y.
Key Lab. of Mountain Hazards and Earth Surface Processes, Chinese Academy of Sciences, Chengdu, Chine
XIONG, D.
Key Lab. of Mountain Hazards and Earth Surface Processes, Chinese Academy of Sciences, Chengdu, Chine
SU, Z.
Key Lab. of Mountain Hazards and Earth Surface Processes, Chinese Academy of Sciences, Chengdu, Chine
LI, J.
Dept. of Environmental Engineering, Univ. of Information Technology, Chengdu, Chine
YANG, D.
Key Lab. of Mountain Hazards and Earth Surface Processes, Chinese Academy of Sciences, Chengdu, Chine
SHI, L.
Inst. of Tropical Eco-agricultural Sciences, Yunnan Academy of Agricultural Sciences, Yuanmou, Chine
LIU, G.
Key Lab. of Mountain Hazards and Earth Surface Processes, Chinese Academy of Sciences, Chengdu, Chine
Description :
The Dry-hot Valley of the Jinsha River in southwest China is an ecologically fragile zone in which gully erosion is one of the most important environmental problems due to the high sediment yield from the gully. The aim of this study was to investigate the vegetation conditions in conjunction with the topography and the soil conditions in the gully and to analyse the distribution of vegetation in different parts of the gully. The vegetation indices, in addition to the soil conditions and topography, were measured through field investigations and the gully Digital Elevation Model (DEM). It is highlighted that the vegetation in the gully is not only impacted by the soil and the topography in the area of vegetation growth but also influenced by the runoff processes upstream of the gully heads.
Type de document :
Article de périodique
Source :
Catena (Giessen), issn : 0341-8162, 2014, vol. 116, p. 60-67, nombre de pages : 8, Références bibliographiques : 27 ref.
Date :
2014
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)