DIGITALNA ARHIVA ŠUMARSKOG LISTA
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| ŠUMARSKI LIST 7-8/2015 str. 62 <-- 62 --> PDF |
Results Rezultati Table 1 shows the remaining mass values of scots pine, Trojan fir, and sweet chestnut that belong to litter decomposition rating after forest harvesting activities that are composed on the remaining stand in varied micro ecologic areas (C, SR, LR and SMS). All ANOWA’s were significant at P<0,05. Tukey’s method of multiple pairwise comparison at α = 0.05 was used to determine significantly means. Means with the same letter are not significantly different by columns. At 6th month, it was seen that the difference between decomposition rates of SR and LR needles which were found in scots pine harvesting area were not statistically significant compared with the needles in C(p>0.05). Likewise, the difference between the decomposition rates in SR and SMS and the rates of C was not statistically significant (p>0.05). However, the difference between the decomposition rates of LR and SMS was statistically significant (p<0.05) (Fig. 2). The maximum decomposition rate was in LR (33 %) and the minimum decomposition rate was in SMS (29.4 %) (Table 1). This situation showed that the decomposition was happening slower in the sloppy parts where the top soil was removed than the other parts. Local heat was increasing in the micro ecologic areas in LR and so this increases soil creatures’ activities. This situation made the decomposition increase. However, when it’s looked upon the harvesting areas of Trojan fir, and sweet chestnut, the statistical differences between the decomposition rates of needles and leaves in C, SR, LR, and SMS was not found statistically significant (P>0.05) (Table 1). As there was no statistically significant difference, the maximum decomposition in Trojan fir needles was C (30.5 %) and the minimum decomposition was LR (29.1%). The maximum decomposition rate in sweet chestnut was SR (38.6 %) and the minimum decomposition rate was SMS (33.6 %) micro ecologic area (Fig. 2). At 12th months, the difference between C and SR decomposition rates in scots pine harvesting area was not statistically significant (p>0.05). As well as this, the differences between decomposition rates of LR, SMS and C and SR are statistically significant (P<0.05). However, the difference of decomposition rates of needles that occupy in the remaining stand of Trojan fir harvesting area in varied micro ecologic areas were not statically significant from one another and C (P>0.05). There was no statistical difference (P>0.05) among the decomposition rates of SR, LR and SMS in micro ecologic areas in the remaining stand of harvesting area in sweet chestnut section. Decomposition rates between C and the other micro ecological areas did differ significantly (P<0.05). However, as there was no statistically significant difference, the maximum decomposition rate of Trojan fir needles was LR (40.4%) and the minimum decomposition rate was SMS (37.7%) (Fig. 3, Table 1). At 18th month, the decomposition rates between the scots pine and Trojan fir harvesting areas in the varied micro ecological areas were not statistically significant. This was the same with the control groups. However, the maximum |