Tree clearing and dryland salinity hazard in the Upper Burdekin Catchment of North Queensland

作者: John Williams , E. N. Bui , E. A. Gardner , Mark Littleboy , M. E. Probert

DOI: 10.1071/S96083

关键词: WatershedDryland salinityWater balanceDrainageDrainage basinSoil waterGroundwater rechargeHydrologyEnvironmental scienceClearing

摘要: This paper provides experimental data on the effect of tree clearing, introduction perennial Stylosanthes based pastures, and use native grasses water balance a red earth soil in Upper Burdekin Catchment near Charters Towers. The simulation models SWIM PERFECT are used to extend results estimate deep drainage for this other soils tropical environment. analysis illustrates that soil/climate interaction wet/dry tropics has similarity with winter-dominant rainfall zone where vegetation change can substantially increase beyond root-zone. Salt distribution soil/landscapes suggests there is salinity hazard, should significant shift occur as result clearing. Therefore, North Queensland, indiscriminate clearing hazardous form land management only proceed after risks dryland have been evaluated shown be negligible.

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