Effects of fire intensity on soil chemistry in a eucalypt forest [Eucalyptus; Victoria]
1991
Tomkins, I.B. | Kellas, J.D. | Tolhurst, K.G. | Oswin, D.A. (Victorian Dept. of Conservation and Environment, Creswick (Australia). Div. of Forests)
Soil samples taken in the Wombat State Forest in Victoria after burning a range of fuel loads showed that short-term responses (up to 6 months) occurred in levels of exchangeable ammonium, K+ and Mg++, and long term changes (2 years or longer) for pH, available and total P and exchangeable Ca++ at 0-2 cm soil depth. Following burning (and 108 mm of rain), changes in soil chemical parameters were strongly correlated with fuel load and the quantity of fuel burnt. For similar yellow podzolic soils, measurement of soil pH may be a useful criterion for monitoring soil chemical changes following slash and fuel reduction burning, provided that accurate estimates of fuel loads, composition and amount burnt can be established.
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