| Outline of Final Research Achievements |
Spruce seedling colonization, wood decay type, and fungal community in spruce logs were surveyed in 6 European countries (Norway, Poland, Czech, Romania, Bulgaria, Greece). Decay type is a categorization of wood decay preference for lignin and holocellulose - two big chemical components of tree cell wall. I found that frequency of brown rot, which accumulate lignin, was high in Norway and Greece. In contrast, frequency of brown rot was relatively low in Central Europe. Spruce seedling density on dead spruce logs was also the largest in Central Europe, and was positively correlated with frequency of white rot, in which lignin was decomposed.
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