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Predicting the impact of afforestation or deforestation on recharge using only time series soil moisture and hydrometeorological data

Lookup NU author(s): Dr Geoffrey ParkinORCiD, Joseph Pollacco, Dr Stephen Birkinshaw


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Modelling the impact of afforestation or deforestation on water resources is complex due to factors such as the microclimate, the soils, the underlying geology, the presence of macropores, the species, their age and density. Parameters used in modelling the different processes are traditionally determined individually from laborious measurements. In this study the only input data required are time series precipitation and Penman evapotranspiration. The SHELUC model uses parameters describing interception, evapotranspiration and soil parameters (van Genuchten parameters). ne challenging task is to determine the parameters of SHELUC solely from normalized time series soil moisture profiles measured by the neutron method. The model parameter sets derived using an automatic calibration procedure. The SHELUC inverse problem for calibration uses a minimum of parameters to describe the different processes, which renders SHELUC a novel valuable tool to predict scenarios of climate and landuse change.

Publication metadata

Author(s): Parkin G, Pollacco J, Birkinshaw S

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: International Congress on Modelling and Simulation

Year of Conference: 2003

Pages: 578-583

Publisher: University of Western Australia

Library holdings: Search Newcastle University Library for this item

ISBN: 174052098X