All soils tested were slightly-to-strongly acidic; dolerite soils
were less acidic than mudstone soils (Tables 3 and 4). All soil
chemistry variables except for Mg varied with treatment and were
lowest in the track and highest in the windrow (Table 3, Figs. 5 and
6). C and N concentrations in the track were 24% and 33% lower
than in the general harvest area, respectively. Electrical conductivity
and pH were 40% and 5% lower in the two firebreak treatments
compared to the general harvest area, while P and Ca were reduced
by 23% and 70%, respectively. By contrast, soils in the windrow
contained 31% more P, 53% more K and had significantly higher
pH than soils in the general harvest area. There was significant
variability between coupes within soil type for all soil chemistry
variables (Table 3).
All soils tested were slightly-to-strongly acidic; dolerite soilswere less acidic than mudstone soils (Tables 3 and 4). All soilchemistry variables except for Mg varied with treatment and werelowest in the track and highest in the windrow (Table 3, Figs. 5 and6). C and N concentrations in the track were 24% and 33% lowerthan in the general harvest area, respectively. Electrical conductivityand pH were 40% and 5% lower in the two firebreak treatmentscompared to the general harvest area, while P and Ca were reducedby 23% and 70%, respectively. By contrast, soils in the windrowcontained 31% more P, 53% more K and had significantly higherpH than soils in the general harvest area. There was significantvariability between coupes within soil type for all soil chemistryvariables (Table 3).
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