LOSS OF SOME ELEMENTS IN FLY-ASH DURING OLD-FIELD BURNS IN SOUTHERN ONTARIO
- 1 April 1974
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Soil Science
- Vol. 54 (2) , 215-224
- https://doi.org/10.4141/cjss74-028
Abstract
In a series of 11 surface burns in old fields at two locations in southern Ontario the environmental factors having the greatest effect on fire severity were fuel moisture content, windspeed and fuel energy. Other environmental factors were of less significance. Changes in soil chemistry were restricted to the surface litter and were transitory. Changes at mineral soil depths may have gone undetected because of the highly buffered soils involved. As much as 30% of the loss of nutrients from the biomass during burning was recovered in downwind deposits of fly-ash adjacent to the burned areas. Recovery estimates are considered approximate and minimal but indicate the importance of nutrient losses in fly-ash during low temperature burns.Keywords
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