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ŠUMARSKI LIST 3-4/2017 str. 20     <-- 20 -->        PDF

a significant increase was observed in belowground biomass of maquis populations between 1001m and 1200 m.
The factor „exposure” was taken into consideration, and the exposures were divided into sunny and shadowy exposures (northwestern, northern, northeastern, and eastern exposures were shadowy ones, while others were sunny exposures) groups, and the differences and similarities were examined. 24 maquis sampling areas were clustered in sunny exposure group, while 11 areas were clustered in shadowy exposure group. In Table 3, the amounts of biomass were presented in relation with the exposure.
As seen in table and graph, given the mean values, it can be easily seen that the biomass capacity of sunny exposures were higher than that of shadowy exposures. The difference reached at 7.32 ton/ha in total.
The mean vegetation height values measured in sampling areas were divided into 4 sub-groups. The mean vegetation height was cascaded from 1.5m with 50cm interval. The sampling areas, where the mean height was lower than 1.5m, were not cascaded since the vegetation heights there were too close to1.5m. There are 4 areas in 0-1.5m range, 11 areas in 1.51-2m range, 8 areas in 2.1-2.5 m range, and 12 areas in 2.51-3 m range. Biomass storage capacities of sub-groups are presented in Table 4 in relation with maquis components.
The total mean value was found to be 50.13 ton/ha in 0-1.5 m sub-group, 58.50 ton/ha in 1.51-2m sub-group, 69.98 ton/ha in 2.01-2.50m sub-group and 74.95 ton/ha 2.51-3m sub-group. The maquis component having the highest value in total was found to be root amount. It can be concluded that the total mean biomass amount linearly increases as the length of maquis components increases.
3-5 individuals cut at the ground level on the plot areas were utilized in order to determine the ages. From these ages, the arithmetic mean value of the ages was calculated for each of the areas. From the aspect of mean age, the maquis areas were clustered under 4 groups as 10-20, 21-30, 31-40 and 41-50 ages, and the aboveground and belowground biomass amounts and changes were examined. There were 7 plots in 10-20 age group, 5 plots in 21-30 age group, 11 plots in 31-40 age group, and 12 plots in 41-50 age group. Arithmetic mean biomass amounts of sampling areas are presented in Table 5.
As seen in Table 5, the evaluations based on the mean age indicated that no sufficiently accurate relationship could be established between the mean vegetation age and ­biomass.
In order to reveal the maquis biomass, 4 groups that are thought to have effect on biomass were established, and those groups were divided into sub-groups. Then, it has