-16- 



47. Mayland, H.F. 1967. Nitrogen availability on 

 fall-burned oak-mountainmahogany chaparral. J. 

 Range Manage. 20:33-35. 



One year after burning vegetation in winter, 

 total N increased in ash and mineral soil by 20%; 

 available N also increased in burned plots. 

 Average soil pH increased from 6.5 to 7.0 after 

 burning. Increased uptake of N by barley plants 

 indicated increased available N. 



48. Metz, L.J. 1952. Annotated bibliography on effect 

 of fire on soil. Southeast. For. Exp. Sta., 

 Asheville, N.C. 7p. 



The 32 entries cover research from 1928-1952. 



49. Metz, L.J., T. Lotti, and R.A. Klawitter. 1961. 



Some effects of prescribed burning on coastal 



plain forest soil. USDA For. Serv. Sta. Paper 



133, Southeast. For. Exp. Sta. , Asheville , N.C. 

 10 p. 



No significant differences were found in soil 

 physical properties. Organic matter increased in 

 mineral soil. Slight increases in N, available P, 

 Ca , K, and Mg in soil resulted from annual 

 burning . 



50. Moore, D.G. and L.A. Norris. 1974. Soil 

 processes and introduced chemicals, p. C1-C33. 

 in O.P. Cramer (ed.) Environmental effects of 

 forest residues management in the Pacific 

 northwest: a state-of-knowledge compendium. USDA 

 For. Serv. General Technical Report PNW-24. 

 Portland , Oregon. 



Use of fire for disposal of logging residues is 

 still the most controversial method. The nutrient 

 capital in organic surface layers, although it 

 represents only a small % of the total, is the 

 site where nutrients are being most actively 

 recycled; destruction of surface o.m. and its 

 organisms therefore must have substantial impact. 

 Pit burning with very intense fires results in 

 loss of sulfur and boron as well as nearly all N. 

 Concentration of nutrients that results from 

 burning in one spot exceeds the capability of 

 underlying soil to absorb the nutrients. 

 Exclusion of fire where rate of litter 

 accumulation exceeds decomposition would be a 

 greater hazard than periodic light burns if 

 intense wildfire results. 



