Water and salt balance modelling to predict the effects of land-use changes in forested catchments. 2. Coupled model of water and salt balances

Murugesu Sivapalan, Neil R. Viney, John K. Ruprecht

Research output: Contribution to journalArticlepeer-review

Abstract

A long-term salt balance model is coupled with the small catchment water balance model presented in Part 1 of this series of papers. The salt balance model was designed as a simple robust, conceptually based model of the fundamental salt fluxes and stores in forested and cleared catchments. The model has four interdependent stores representing salt storage in the unsaturated zone, the deep permanent saturated groundwater system, the near-stream perched ground-water system and in a 'salt bulge' just above the permanent water-table. The model has performed well in simulations carried out on Salmon and Wights, two small experimental catchments in south-west Western Australia. When applied to Wights catchment the salt balance model was able to predict the stream salinities prior to clearing of native forests, and the increased salinities after the clearing.

Original languageEnglish (US)
Pages (from-to)413-428
Number of pages16
JournalHydrological Processes
Volume10
Issue number3
DOIs
StatePublished - Mar 1996
Externally publishedYes

Keywords

  • Catchment hydrology
  • Conceptual modelling
  • Salt balance models
  • Stream salinity

ASJC Scopus subject areas

  • Water Science and Technology

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