Land 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