Wind erosion and land management in the mulga lands of Queensland
1994
Miles, B. (Queensland Dept. of Primary Industries, Rockhampton (Australia)) | McTainsh, G. (Griffith Univ., Nathan (Australia). Faculty of Environmental Sciences)
Wind erosion had received very little recognition as an agent of land degradation in the grazing lands of semi-arid eastern Australia. This is largely due to the insidious nature of wind erosion and the difficulties of quantifying the extent or severity of the problem. The findings of research on wind erosion in the mulga lands of south-west Queensland are presented. Soil loss measurements show that wind erosion is a significant agent of land degradation with potential to degrade the soil at a substantially greater rate than water erosion. In areas of low vegetation cover (10 percent canopy cover) soil losses are of the order of 5.2 t per ha per year and greater than 80 t per ha per year in trampled areas. By maintaining adequate vegetation cover soil loss rates can be reduced to less than 2.8 t per ha per year. Land management implications of these results are discussed.
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