Journal of Forest Science, 2009 (vol. 55), issue 7
Production and humus form development in forest stands established on agricultural lands - Kostelec nad Černými lesy region
V. Podrázský, J. Remeš, V. Hart, W. Keith Moser
J. For. Sci., 2009, 55(7):299-305 | DOI: 10.17221/11/2009-JFS 
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...
Coppice-with-standards in floodplain forests - a new subject for nature protection
I. Machar
J. For. Sci., 2009, 55(7):306-311 | DOI: 10.17221/87/2008-JFS
: 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...
Production potential of Douglas fir in acid sites of Hůrky Training Forest District, Secondary Forestry School in Písek
P. Kantor, R. Mareš
J. For. Sci., 2009, 55(7):312-322 | DOI: 10.17221/2/2009-JFS
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...
Effect of stand segmentation on growth and development of Norway spruce stands
J. Horák, J. Novák
J. For. Sci., 2009, 55(7):323-329 | DOI: 10.17221/61/2008-JFS
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...
The effect of environmental conditions on the abundance of grubs of the cockchafer (Melolontha hippocastani F.)
M. Švestka, K. Drápela
J. For. Sci., 2009, 55(7):330-338 | DOI: 10.17221/2365-JFS
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...
Perception of the forest by the villagers of the Salonga National Park in the Democratic Republic of Congo
J. M. Ibesoa
J. For. Sci., 2009, 55(7):339-344 | DOI: 10.17221/92/2008-JFS
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.