ECOLOGICAL STRUCTURE OF BEECH AND CONIFEROUS/BEECH MOUNTAIN CLIMAX FOREST STANDS OF UKRAINIAN CARPATHIANS
| Autor: | T. V. Parpan, V. I. Parpan |
|---|---|
| Jazyk: | English<br />Polish<br />Russian<br />Ukrainian |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Науковий вісник НЛТУ України, Vol 27, Iss 8, Pp 59-63 (2017) |
| Druh dokumentu: | article |
| ISSN: | 1994-7836 2519-2477 |
| DOI: | 10.15421/40270808 |
| Popis: | According to the age classes, middle-aged forest stands predominate in the mountan forests of the Carpathians (46.2), overmature stands occupy 6.9% (62 thousand ha). According to the recent inventory, about 85 thousand hectares of climax old-growth forests are identified, including climax virgin forests that occupy about 54 thousand hectares which are uneven-aged. For their identification, a population matrix with a division into age groups is suggested, taking into account the age condition of the edificator. There are 6 age groups: pre-generative – juvenile-immature, virginal; generative – young generative, middle-aged, mature and old generative. In terms of the number of uneven-aged beech and coniferous/beech stands, the adequate cenopopulations of beech is dominated. The age spectra of fir and spruce, sycamore maple, ash-tree are generally non-stabilized or fragmentary. On average, on 1 ha of elementary demographic cenopopulation of beech and coniferous/beech stands on the generative generation there are 174-235 beech individuals, 42-52 – fir, 5-16 – spruce, 5-10 – sycamore and ash-tree, respectively.Half of the timber stock (50-60%) is over-mature, and 25% is in mature age condition. In climax cenosis, it can be recommended to conduct a uniform or non-uniform selection felling system. Introduction of population paradigm in forest synecology opens up a new opportunity to divide stands into age generations and treat them as a set of cenopopulations of key species for old-growth forests and virgin forests. |
| Databáze: | Directory of Open Access Journals |
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