Regional-scale models for relating land cover to basin surface-water quality using remotely sensed data in a GIS
Data(s) |
01/07/2008
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Resumo |
Plant-based management systems implementing deep-rooted, perennial vegetation have been identified as important in mitigating the spread of secondary dryland salinity due to its capacity to influence water table depth. The Glenelg Hopkins catchment is a highly modified watershed in the southwest region of Victoria, where dryland salinity management has been identified as a priority. Empirical relationships between the proportion of native vegetation and in-stream salinity were examined in the Glenelg Hopkins catchment using a linear regression approach. Whilst investigations of these relationships are not unique, this is the first comprehensive attempt to establish a link between land use and in-stream salinity in the study area. The results indicate that higher percentage land cover with native vegetation was negatively correlated with elevated in-stream salinity. This inverse correlation was consistent across the 3 years examined (1980, 1995, and 2002). Recognising the potential for erroneously inferring causal relationships, the methodology outlined here was both a time and cost-effective tool to inform management strategies at a regional scale, particularly in areas where processes may be operating at scales not easily addressed with on-site studies.<br /> |
Identificador | |
Idioma(s) |
eng |
Publicador |
Springer Netherlands |
Relação |
http://dro.deakin.edu.au/eserv/DU:30017156/stagnitti-regionalscale-2008.pdf http://dx.doi.org/10.1007/s10661-007-9918-5 |
Direitos |
2007, Springer Science + Business Media B.V. |
Palavras-Chave | #dryland salinity #land use #native vegetation #regional analysis #Southwest Victoria #Australia |
Tipo |
Journal Article |