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Full-Text Articles in Forest Sciences
The Probability Of Moose Damage At The Stand Level In Southern Finland, Anneli Jalkanen
The Probability Of Moose Damage At The Stand Level In Southern Finland, Anneli Jalkanen
Aspen Bibliography
The probability of moose damage was studied in sapling stands and young thinning stands in southern Finland. Data from the eighth National Forest Inventory in 1986–92 were used for modelling. The frequency of damage was highest at the height of two to five meters and at the age of ten to twenty years (at the time of measurement). Moose preferred aspen stands the most and least preferred Norway spruce stands. Scots pine and silver birch were also susceptible to damage. Logistic regression models were developed for predicting the probability that moose damage is the most important damaging agent in a …
Growth And Phenology Of Hybrid Aspen Clones (Populus Tremula L. X Populus Tremuloides Michx.), Qibin Yu, P.M.A. Tigerstedt, Matti Haapenen
Growth And Phenology Of Hybrid Aspen Clones (Populus Tremula L. X Populus Tremuloides Michx.), Qibin Yu, P.M.A. Tigerstedt, Matti Haapenen
Aspen Bibliography
Height, basal diameter, diameter at breast height, bud burst, and leaf development were recorded in a 5-year-old hybrid aspen clonal trial. The field trial consisted of four aspen hybrid clones (Populus tremula x Populus tremuloides) and one local P. tremula seedling source. Phenological traits were observed in the 3rd year. Growth patterns were recorded during the 3rd and 4th years. Phenological traits were explored in relation to hybrid vigor expressed as growth traits. Differences were observed for phenological and growth traits among hybrid clones and P. tremula. The growth period varied from 143–158 days for the four hybrid clones, and …