broj: 9-10/2003
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| IZVORNI ZNANSTVENI ČLANCI | ||
| Idžojtić, M. | UDK 630* 442 (001) | |
| Hosts and Distribution of the White-berried Mistletoe (Viscum album L. ssp. album) in Croatia pdf HR EN | 439 | |
| Krejči, V., Dubravac, T. | UDK 630* 231 + 226 (001) | |
| Possibility and Justification of the Shelterwood Cutting Method in the Beech Forests of Gorski Kotar, Lika and Hrvatsko Primorje pdf HR EN | 449 | |
| Summary: The paper indicates the possibility and justification of the application of the shelterwood cutting method in the beech forests of Gorski Kotar, Lika and Hrvatsko primorje (maritime region), where they cover considerable areas and have an important forest-management and ecological role. For several years, in two climatozonal communities, i.e. a maritime beech forest (Fagetum croat. seslericetosum Ht.) and a mountain beech forest (Fagetum croat. montanum Ht.), results were monitored on the reestablishment of beech stands when applying the shelterwood cutting method in small groups on large areas. The principle of the group selection system in management of even-aged forests on small areas was investigated in the beech maritime forest, in the Management Unit "Učka", Compartment 24. An area of 1.4 ha was covered applying the final cut in 1987, on 5 groups in the Compartment 24, encompassing 23 ha. The average age of young beech growth in the middle of the group was 9 years, mean height 1.1 m, with the participation of 90 000 young beech trees per hectare. The second cutting was performed in 1999, on the same groups, on 5.65 ha, and amounted to 25 % of the compartment area. In 2002, measurement was carried out of the state of young growth trees in the same groups (Table 2, Fig. 3); in the middle of the group (final cutting), at the half of the group radius and on the border of the group, which showed markedly good development progress with regard to the number and quality of young growth. Knowledge on the numbers and development progress in the young beech trees in the 5 monitored groups, showed that the management and oncoming cuttings (2009 and 2019) should be performed by the same principles. Having analysed the two final group selection cuttings in 1987 and 1999, as presented in Table 3, it can be concluded that the compartment will have been completely reestablished with the cutting in 2019. Due to the fact that the compartment is located in the "Učka" Nature Park, where the forest, apart from management, also has other functions, we consider this method of management and reforestation essential. The transition from selection management to even-aged method of beech management, by applying the shelterwood cutting system on large areas was investigated, in the mountain beech forest in the area of the Ogulin Forest Office, Management Unit "Bukovača", Compartment 18. Based on the current structure in the beech stand and the appearance of young growth, the compartment was divided into three parts in 1988, in which preparatory, regeneratory (seed cutting), and final cuttings in the reestablished part of the compartment, were carried out. In 1995, following favourable reestablishment/reforestation, the cuttings were performed according to the requirements of the state of the stand. In 2002, final cutting was performed on the remaining abundantly regenerated compartment area (144.800 beechnuts per ha). The state of the current young growth was extremely good with regard to the number, quality and vitality. With the regeneration/restocked/ period of 14 years and three cuts, three even-aged young beech stands of average age 7-18 years were achieved on a large area. In view of the anticipated 100-year rotation period for the mountain beech in that region, young stands should not be placed in separate compartments. Exceptionally good natural beech reestablishment by the aforementioned two methods, within two different forest ecosystems, confirmed the non-rationality of beech growth when practising selection cutting management. Key words: beech; natural reforestation (reestablishment); shelterwood cutting system; group-selection cutting | ||
| Klobučar, D. | UDK 630* 583 + 585 (001) | |
| Assessment of the Accuracy of Geocoding the Basic Map of Croatia and the Digital Orthophotography pdf HR EN | 457 | |
| PRETHODNO PRIOPĆENJE | ||
| Prka, M. | UDK 630* 443 + 323 + 325 | |
| Occurrence of False Heartwood in Beech Trees and Technical Beech Roundwood Coming from Thinning and Preparatory Fellings in the Area of Bjelovar Bilogora pdf HR EN | 467 | |
| STRUČNI ČLANCI | ||
| Margaletić, J., Margaletić, M. | UDK 630* 435 + 432 | |
| Fires in Forests and Forestlands as Habitat Degradation Factors pdf HR EN | 475 | |
| Sabadi, R. | UDK 630* 904 | |
| German Forestry in 2002/2003 pdf HR EN | 483 | |
| Tolić, I. | UDK 630* 164 + 160 + 261 | |
| Commercial and other Values of the Genus Pistacia Species pdf HR EN | 501 | |