Mots-clés
Action anthropique ; Analyse isotopique ; Australie ; Géochimie ; Géochronologie ; Holocène ; New South Wales ; Paléo-environnement ; Plomb ; Pollution ; Sédiment lacustre ; Utilisation agricole du sol ; Utilisation du solAgricultural land use ; Australia ; Geochemistry ; Geochronology ; Holocene ; Human impact ; Isotope analysis ; Lacustrine sediment ; Land use ; Lead ; New South Wales ; Palaeo-environment ; PollutionLand use and lake sedimentation on the New England Tablelands of New South Wales, Australia
Auteurs :HAWORTH, R.J.
GALE, S.J.
SHORT, S.A.
HEIJNIS, H.
Description :
Lead-210 methods have been used to establish a chronology of sedimentation extending back almost 80 years in Black Mountain Lagoon near Guyra on the New England Tablelands of north-eastern New South Wales. The sediments in the lake record an episode of disturbance which took place prior to c.1916, but after c.1790-1860. The lake sediments preserve evidence of the use of agricultural chemicals on the catchment during the twentieth century. These include phosphorus, zinc, arsenic and lead. Soils and sediments may act as long-term toxic stores for such chemicals, a problem often overlooked in rural areas.
Type de document :
Article de périodique
Source :
Australian Geographer, issn : 0004-9182, 1999, vol. 30, n°. 1, p. 51-73, Collation : Illustration, Références bibliographiques : 47 ref.
Date :
1999
Editeur :
Pays édition : Australie, Sydney, Geographical Society of New South Wales
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)