MODELING LAND-COVER-INDUCED VARIATIONS IN HYDROLOGIC RESPONSE - PICANINNY-CREEK, VICTORIA

A lumped conceptual rainfall-runoff model has been applied to the Pica ninny Creek catchment located in the southern highlands of Victoria, A ustralia. This catchment had undergone a change in hydrologic response due to clearfelling, and the model successfully represented this chan ge in response. The model parameters governing volumetric throughput o f water and evapotranspirative losses changed after the clearfelling, but those governing rates of recession of water from the catchment did not. The change in hydrologic response was more accurately represente d by the model than by examination of the raw streamflow data, since t he model takes into account any variations in rainfall and temperature which may have occurred at the same time as the clearfelling.