DIGITALNA ARHIVA ŠUMARSKOG LISTA
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| ŠUMARSKI LIST 1-2/1966 str. 88 <-- 88 --> PDF |
Bialowieza forest, as well as in the Wroclaw District. Plus trees in the Bialowieza Forest are characterised by a particularly impressive height. The tallest reach 41,5 m in height and 62 cm in diameter. In the Forest District Suprasl, in north-eastern Poland the tallest pine trees selected are 39,5 m in height and 50 cm in diameter. Similar dimensions are reached by trees selected in the Narewka Forest District within the same part of the country. Interesting pines were also selected in the Kotlina Klodzka in the mountains of south-western Poland, where the trees reach 36 m in height and 42 cm in diameter. They often grow mixed with spruce and manage to compete with it. Also 210 spruce trees are selected, mainly in the Carpathians (127 trees), in the Sudety Mts. (33 trees), and in the Bialowieza Forest (34 trees). Particularly fine spruce trees were selected in the Forest District Istebna, where tree height is sometimes as much as 52 m and diameter 67 cm, and in the Forest District Rycerka with trees 54 m in height. The tallest spruce in the Bialowieza Forest is 49 m and 80 cm in diameter and in the Szczytno Slaskie in south-western Poland 44 m in height and 58 cm in diameter. In view of the fact that fir is not a very important forest forming species in Poland not many trees of this species were selected, mainly in the Carpathians, where the tallest grows in Istebna and reaches 50 m in height and 75 cm in diameter. A large number of plus trees were selected of the Polish larch from natural stands and of the European larch from cultivation. The tallest Polish larch trees selected grow in the Blizyn Forest District with 38 m in height and 76 cm in diameter and 38 m in height and 53 cm in diameter as well as in the Skarzysko Forest District where a specimen has 43 m in height and 106 cm in diameter. In the Bystrzyca Klodzka (south-western Poland) the height of the European larches (possibly Sudetan larches) is considerable and reaches 46 m and 49 cm in diameter, — and in the Klodzko Forest District 45 m in height and 48 cm in diameter. The tallest European larch tree selected by us from cultivation in the lowlands grows in the Lopuchöwko Forest District, Poznan District, and measures 42 m in height and 70 cm in diameter. Of oak trees 63 were selected as plus trees, mainly in the Bialowieza Forest and in the Poznan District. The tallest plus oak tree selected in the Bialowieza Forest measures 43 m and has a diameter of 101 cm. In all 32 ash trees were selected cut of which 21 come from the Bialowieza Forest. The tallest specimen has 37 m in height and 130> cm in diameter. Of beech trees there are 65 selected in all, 27 of which are from the Gdansk District, 13 from Szczecin District and 15 from Bydgoszcz District. The tallest of the selected beech trees grow in the Osno Forest District in the Gdansk District, where one has 36 m in height and 42 cm in diameter, and in Central Poland, Forest District Daleszyce in the Swietokrzyskie Mts. where one has 37 m in height and 71 cm in diameter. Also 114 alder plus trees were selected, mainly in the Forests of the Bialystok District (71 trees)) in the Katowice District (24 trees) and in the Kielce District (13 trees). |