Template-Type: ReDIF-Article 1.0 Author-Name: V. Podrázský Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences in Prague, Prague, Czech Republic Author-Name: J. Remeš Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences in Prague, Prague, Czech Republic Author-Name: V. Hart Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences in Prague, Prague, Czech Republic Author-Name: W. Keith Moser Author-Workplace-Name: USDA, Forest Service, Northern research Station, St. Paul, U.S.A. Title: Production and humus form development in forest stands established on agricultural lands - Kostelec nad Černými lesy region Abstract: The afforestation of agricultural lands was carried out under different site and ecological conditions, including lower and medium elevated localities. The present study documents the rapidity of accumulation of surface layers and their characteristics in stands of Scots pine (Pinus sylvestris), Norway spruce (Picea abies), birch (Betula verrucosa) and Douglas fir (Pseudotsuga menziesii) in the territory of the Training Forest Enterprise in Kostelec nad Černými lesy, at the altitude 430 m a.s.l., on the site of nutrient-poor gleyed soils. The plots were compared with the neighbouring continuously forested site covered with old pine-spruce stand and with near-situated arable field. During the first roughly 40 years, considerable changes were documented on the afforested plots. Forest-floor humus layers in the coniferous stands have already been formed, the humus forms being more favourable compared with the old forest site. Acidification and loss of nutrients run in the upper mineral horizons. These processes were also responsible for the less favourable character of the forest soil in the old stand. Birch showed minor shifts of soil properties in the mineral horizon compared to the conifers; the surface humus accumulation was not observed there yet. The lowest degradation among conifers was shown in Douglas fir, intensively taking up deficient nutrients on the other hand. Keywords: afforestation, agricultural lands, tree species, forest-floor humus, soil characteristics Journal: Journal of Forest Science Pages: 299-305 Volume: 55 Issue: 7 Year: 2009 DOI: 10.17221/11/2009-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/11/2009-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-200907-0001.txt Handle: RePEc:caa:jnljfs:v:55:y:2009:i:7:id:11-2009-JFS Template-Type: ReDIF-Article 1.0 Author-Name: I. Machar Author-Workplace-Name: Department of Biology, Faculty of Education, Palacký University in Olomouc, Olomouc, Czech Republic Title: Coppice-with-standards in floodplain forests - a new subject for nature protection Abstract: : At present, the coppice-with-standards system has become so rare in floodplain forests that it is considered a natural monument. In 1990, the coppice-with-standards system was not recorded in the territory of the Czech Republic. This state contradicts the increasing interest of nature protection organizations in the relict remainders of the coppice-with-standards system, which is to be considered the closest to naturally preserved lowland forest type, and is, therefore, recommended as the final state of the biocentres and biocorridors in today's floodplain forests. The aim of this paper is to present the results of the inventory dealing with the present occurrence of the coppice-with-standards system in the floodplain forest of the Litovelské Pomoraví Protected Landscape Area (PLA) in a historical context. Keywords: coppice-with-standards, floodplain forest, forest management, storeyed high forest Journal: Journal of Forest Science Pages: 306-311 Volume: 55 Issue: 7 Year: 2009 DOI: 10.17221/87/2008-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/87/2008-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-200907-0002.txt Handle: RePEc:caa:jnljfs:v:55:y:2009:i:7:id:87-2008-JFS Template-Type: ReDIF-Article 1.0 Author-Name: P. Kantor Author-Workplace-Name: Faculty of Forestry and Wood Technology, Mendel University of Agriculture and Forestry in Brno, Brno, Czech Republic Author-Name: R. Mareš Author-Workplace-Name: Faculty of Forestry and Wood Technology, Mendel University of Agriculture and Forestry in Brno, Brno, Czech Republic Title: Production potential of Douglas fir in acid sites of Hůrky Training Forest District, Secondary Forestry School in Písek Abstract: The study is a follow-up of the production potential of Douglas fir in mesotrophic sites of the Křtiny Training Forest Enterprise (TFE) (Journal of Forest Science, No. 7, 2008). Production parameters (height, dbh, volume) of Douglas fir are also evaluated, but in acid sites of the Hůrky Training Forest District, Secondary Forestry School in Písek in mature stands. In total, 17 mixed stands with the proportion of Douglas fir aged 88 to 121 years were assessed. Comparing 10 Douglas fir trees with 10 Norway spruce, Scots pine or European larch trees of the largest volume, higher and generally markedly higher production potential of the introduced Douglas fir was always found in all assessed stands. Groups where the volume of Douglas fir trees was two to three times higher than the volume of spruce, pine or larch were not an exception. For example, in stand 22B10, the mean volume of the 10 largest Douglas fir trees was 6.30 m3 but the volume of spruce trees was only 1.93 m3 and the volume of larch trees 2.25 m3. Differences between the mensurational parameters of Douglas fir and spruce (or larch) assessed by the ANOVA test were statistically highly significant. At present (based on annual ring analyses), the volume increment of particular Douglas fir trees ranges at level of 0.06 to 0.10 m3/year (i.e. about 0.6 m3 to 1.0 m3 per 10 years) in mature stands. Keywords: Douglas fir, Norway spruce, Scots pine, European larch, production potential, acid sites Journal: Journal of Forest Science Pages: 312-322 Volume: 55 Issue: 7 Year: 2009 DOI: 10.17221/2/2009-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/2/2009-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-200907-0003.txt Handle: RePEc:caa:jnljfs:v:55:y:2009:i:7:id:2-2009-JFS Template-Type: ReDIF-Article 1.0 Author-Name: J. Horák Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences in Prague, Prague, Czech Republic Author-Name: J. Novák Author-Workplace-Name: Forestry and Game Management Research Institute, Strnady, Opočno Research Station, Opočno, Czech Republic Title: Effect of stand segmentation on growth and development of Norway spruce stands Abstract: Segmentation of stands by tracks is often the first phase of forest tending. However, a suitable track width is still discussed in forest practice in the Czech Republic. This article deals with the effect of track width on the growth characteristics of young spruce stands. Research involves several variants of European thinning experiment IUFRO CZ 14 Machov situated in Eastern Bohemia. Totally 3 variants were analyzed: 1 - non-segmented control plot without thinning and plots with forest tending (at top height 10 and 20 m) and with different present width of tracks (plot 3 - originally 3.5 m, plot 4 - originally 5.0 m). The significantly positive effect of stand segmentation and tracks on dbh and crown length was found only for individuals growing in the first row next to a track. As regards the stand volume and volume of mean stem, differences between variants with skidding track (3 and 4) were found minimal and insignificant. Therefore, the observation did not reveal any evident losses of production caused by different widths of skidding tracks. Keywords: Norway spruce, forest tending, skidding track, growth, production, static stability Journal: Journal of Forest Science Pages: 323-329 Volume: 55 Issue: 7 Year: 2009 DOI: 10.17221/61/2008-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/61/2008-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-200907-0004.txt Handle: RePEc:caa:jnljfs:v:55:y:2009:i:7:id:61-2008-JFS Template-Type: ReDIF-Article 1.0 Author-Name: M. Švestka Author-Workplace-Name: Forestry and Game Management Research Institute, Strnady, branch office Znojmo, Znojmo, Czech Republic Author-Name: K. Drápela Author-Workplace-Name: Faculty of Forestry and Wood Technology, Mendel University of Agriculture and Forestry in Brno, Brno, Czech Republic Title: The effect of environmental conditions on the abundance of grubs of the cockchafer (Melolontha hippocastani F.) Abstract: In selected sample plots which included pine forest plantations, pine young growth, small pole stage of pine, pine high forest, mixed pine/oak stand, beech stand and unforested land the bionomics and the abundance of grubs were studied between two swarmings of M. hippocastani F. cockchafers in the period from 2003 to 2007. On the basis of correlations between the abundance of grubs and course of daily temperatures during swarming, and characteristics of the sample plots, particularly the degree of shading, we evaluated the factors which affected the M. hippocastani F. females in their choice of the locality for laying eggs. The correlation between the abundance of grubs and the shading of the locality was evaluated statistically. On the basis of checks of the soil probes the development of grubs and changes in their numbers were monitored in the period from 2004 to 2006. Keywords: forest protection, Melolontha hippocastani F., bionomics and abundance of grubs, environmental conditions Journal: Journal of Forest Science Pages: 330-338 Volume: 55 Issue: 7 Year: 2009 DOI: 10.17221/2365-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/2365-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-200907-0005.txt Handle: RePEc:caa:jnljfs:v:55:y:2009:i:7:id:2365-JFS Template-Type: ReDIF-Article 1.0 Author-Name: J. M. Ibesoa Author-Workplace-Name: Faculty of Forestry and Wood Technology, Mendel University of Agriculture and Forestry in Brno, Brno, Czech Republic Title: Perception of the forest by the villagers of the Salonga National Park in the Democratic Republic of Congo Abstract: Effective forest management demands detailed knowledge of resources. Local forest users are usually the best source of information. In the Democratic Republic of Congo forest management partnerships between local people and government staff have become more common. A proper understanding of local perceptions of the forest is needed. This study was designed and guided by a multidisciplinary team including a sociologist, a linguist and a forester. It identified and compared classification and management units. It also touched on the different uses of the forest products, the species that provided these products and the locations of these species. Keywords: perception of forest, forest products, local villagers, Salonga National Park Journal: Journal of Forest Science Pages: 339-344 Volume: 55 Issue: 7 Year: 2009 DOI: 10.17221/92/2008-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/92/2008-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-200907-0006.txt Handle: RePEc:caa:jnljfs:v:55:y:2009:i:7:id:92-2008-JFS