-5- 



5. Alban, D.H. 1977. Influence on soil properties of 

 prescribed burning under mature red pine. USDA 

 For. Serv. Res. Pap., NC-139. North Cent. 

 For. Exp. Sta., St. Paul, Minn. 



In Minnesota, burning at various intervals to 

 control understory shrubs resulted in decreased 

 quantities of organic matter (o.m.) and certain 

 nutrients in forest floor horizons (L,F,H). In 

 mineral soil, however, pH , cation exchange 

 capacity (CEC) , P, Ca, Mg , and K increased, 

 indicating transfer of nutrients from organic to 

 mineral horizons. 



6. Allen, S.E. 1964. Chemical aspects of heather 

 burning. J. Appl . Ecol. 1:347-368. 



In Great Britain, soil monoliths 14-30 cm deep 

 and 20-30 cm wide were removed from the field and 

 treated under laboratory conditions with ash, 

 simulated rain, and direct burning of surface 

 litter. Soil and leachates were analyzed. Peat 

 soils retained most of the ash nutrient additions 

 in the top 2 cm and showed soil nutrient gains. 

 Sandstone soils showed net loss of K and no change 

 in Ca, Mg , and P. 



7. "Austin, R.C. and D.H. Baisinger. 1955. Some 

 effects of burning on forest soils of western 

 Oregon and Washington. J. Forestry. 53:275-280. 



After severe to moderate slash burning and 

 cleanup, soil water holding capacity was reduced 

 33.7%, o.m. decreased by 75.5%, total N decreased 

 67% while P, K, Ca and Mg increased. The pH 

 increased from 4.5 to 7.6. Effects were confined 

 to the top 5 cm of soil. Two years later, little 

 or no recovery had occured; P, K, and Mg had 

 returned to non-burn levels, but Ca was still 3 

 times that in unburned soil. 



8. Baker, J. 1968. Effects of prescribed burning on 

 nutrient status of forest soils and seedling 

 growth. Forestry Chron. 44:40. 



Immediate effects of fire were increased pH , 

 extractable cations, and in some cases CEC; % 

 carbon and C/N ratio decreased. Field moisture 

 fluctuated more rapidly, but no physical 

 properties were significantly changed. Conifer 

 seedling growth was better on unburned soil, but 

 scarification improved the burned soil. 



