|ORIGINAL SCIENTIFIC PAPERS|
|Medak, J., Slade, D., Vukelić, M., Medvedović, J.||UDK 630* 188 + 182.1 (001)|
|Peduncled Oak Forests in the Areas of Premužno Jezero and Crno Jezero in Lika pdf HR EN||251|
|Šporčić, M., Sabo, A.||UDK 630* 304 + 964 (001)|
|Workers´ Injuries in Croatian Forestry in the Period of 1991-2000 pdf HR EN||261|
|Kremer, D.||UDK 630* 181.8 + 270|
|The Flowering of Some Woody Plants During the Winter in the Botanical Gardens of the Faculty of Natural Sciences and Mathematics pdf HR EN||273|
|Zelić, J., Međugorac, K.||UDK 630* 232.1 + 524|
|A Contribution to the Management of Red Oak (Quercus borealis maxima Sarg.) pdf HR EN||287|
|Summary: Red oak (Quercus borealis maxima Sarg.) was introduced in Požega Valley forty years ago. In the past period, red oak was denominated and managed as Quercus robur.The paper deals with ecological conditions of the site (geographical, geological, pedological, climatic) and management characteristics of red oak.|
The investigation presents data analysis of two trees (inferior and superior model trees, by Hohenadel) in the observed period (40 years). The annual current diameter increment was measured with the Pressler method, as were the stand height curve, the shape number and shape quotient.
The provisional volume per hectare of red oak and the concrete and theoretical distribution of trees per diameter grades were based on the above parameters.
Statistical analysis and mathematical function show basic characteristics of growth and increment height, diameter and volume by ages. There is no proportion (correlation) between the annual current diameter increment and the diameter grades (rX = 0.098677, by Pearson).
Key words: annual current diameter increment; concrete and theoretical distribution; ecological conditions of the site; growth and increment; red oak; tree analysis
|Vukelić, M.||UDK 630* 451 + 462|
|Grazing on the Velebit pdf HR EN||299|