The consequences of land use change on nutrient exports: a regional scale assessment in south-west Victoria, Australia.
J Environ Manage
; 74(4): 305-16, 2005 Mar.
Article
em En
| MEDLINE
| ID: mdl-15737455
Estimation of nutrient load production based on multi-temporal remotely sensed land use data for the Glenelg-Hopkins region in south-west Victoria, Australia, is discussed. Changes in land use were mapped using archived Landsat data and computerised classification techniques. Land use change has been rapid in recent history with 16% of the region transformed in the last 22 years. Total nitrogen and phosphorus loads were estimated using an export coefficient model. The analysis demonstrates an increase in modelled nitrogen and phosphorus loadings from 1980 to 2002. Whilst such increases were suspected from past anecdotal and ad-hoc evidence, our modelling estimated the magnitude of such increases and thus demonstrated the enormous potential of using remote sensing and GIS for monitoring regional scale environmental processes.
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Base de dados:
MEDLINE
Assunto principal:
Fósforo
/
Monitoramento Ambiental
/
Meio Ambiente
/
Poluentes Ambientais
/
Modelos Teóricos
/
Nitrogênio
Tipo de estudo:
Prognostic_studies
País como assunto:
Oceania
Idioma:
En
Ano de publicação:
2005
Tipo de documento:
Article