Modelling the impact of subcatchment and regional scale drainage in the Blackwood Basin, Western Australia

Riasat Ali, Neil R. Viney, Geoff Hodgson, Santosh Aryal and Warrick Dawes

Agricultural Water Management, 2012, vol. 115, issue C, 252-266

Abstract: This study assesses the impacts of several subcatchment and regional scale artificial drainage on on-site groundwater levels and salinity, and off-site streamflows, salt loads and lake discharge rates using a hydrological model LASCAM. The model is applied to the 21,147km2 Blackwood Basin in southwestern Australia, much of which has been experiencing long-term rises in groundwater levels in response to large-scale clearing of native vegetation over the past 160 years. These rises in groundwater levels have led to substantial increases in stream salinity, waterlogging and land salinisation.

Keywords: Dryland salinity; LASCAM; Stream salinity; Regional scale artificial drainage; Drainage discharge management (search for similar items in EconPapers)
Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:eee:agiwat:v:115:y:2012:i:c:p:252-266

DOI: 10.1016/j.agwat.2012.09.012

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