Mots-clés
Alaska ; Analyse multivariée ; Classification ; Cours d'eau ; Dégradation de l'environnement ; Erosion des berges ; Faune ; Géométrie hydraulique ; Habitat ; Lit fluvial ; Protection de la natureAlaska ; Bank erosion ; Channel geometry ; Classification ; Environmental degradation ; Fauna ; Habitat ; Multivariate analysis ; Nature conservation ; River bed ; StreamMultivariate geomorphic analysis of forest streams: implications for assessment of land use impacts on channel condition
Auteur(s) et Affiliation(s)
WOOD-SMITH, R.D.
U.S.D.A., Forest Service, Pacific Northwest Research Station, Juneau, AK 99801-8545, Etats-Unis
Description :
This study quantifies geomorphic characteristics of 23 gravel-bedded, forest stream reaches grouped into 2 categories: 1) undisturbed, and 2) heavily impacted by timber harvesting and associated road building (disturbed). Disturbed reaches are located within the area of immediate disturbance. The AA. develop an objective methodology for the assessment of channel condition based on measured geomorphic variables. Data are analysed using multivariate statistical techniques in order to produce discriminant functions for the classification of streams as either disturbed or undisturbed.
Type de document :
Article de périodique
Source :
Earth surface processes and landforms, issn : 0197-9337, 1996, vol. 21, n°. 4, p. 377-393, Collation : Illustration, Références bibliographiques : 51 ref.
Date :
1996
Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)