Journal of Forest Science, 2013 (vol. 59), issue 10
Analysis of the genetic structure of a model Scots pine (Pinus sylvestris) seed orchard for development of management strategiesOriginal Paper
O. Ivanek, Z. Procházková, K. Matějka
J. For. Sci., 2013, 59(10):377-387 | DOI: 10.17221/39/2013-JFS 
Genetic structure, diversity and clonal homogeneity were determined on the basis of the isozyme gene markers in a model Scots pine seed orchard in the north-eastern part of the Czech Republic that originated from natural forest regions NFR 28 and 29 (Jeseníky Mts.) and the 2nd and 3rd forest altitudinal zones (FAZ). Clone and ramet crop variation for the 2009-2011 period was assessed. Comparing the loci measured also in two pine orchards in central Slovakia, a similar proportion of homogeneous clones but considerably lower expected heterozygosity were found out for most of the measured isozyme loci. Heterozygosity of the investigated...
In vitro reproduction of rare and endemic species of rowan treeOriginal Paper
P. Máchová, J. Malá, H. Cvrčková, J. Dostál, V. Buriánek
J. For. Sci., 2013, 59(10):386-390 | DOI: 10.17221/46/2013-JFS
The preservation and reproduction of gene resources of rare and endemic rowan species were the main aims of this study. Rowan species represent important woody trees from the aspect of forest biodiversity. There are only several endemic rowan species in the Czech Republic which are of hybridogenous origin from the whitebeam (Sorbus aria) range. Most of them have been described only at the end of the 20th century. For these species, the new procedures of vegetative reproduction were developed. In vitro cultures from dormant buds of 57 mature trees were established. The successful induction of organogenesis was achieved in...
On the way to continuous cover forest at middle elevations - the question of forest structure and specific site characteristicsOriginal Paper
L. Bílek, J. Remeš, O. Švec, D. Zahradník
J. For. Sci., 2013, 59(10):391-397 | DOI: 10.17221/57/2013-JFS
The transformation process of even-aged forest stands to irregular forest stands on waterlogged sites after 20 years effort was analysed. Data from two 1-ha PRP was analysed with special focus on structural (Shannon Evenness Index, Simpson Index and Gini Index) and species (Shannon Evenness Index and Simpson Index) diversity. Different development on study plots confirmed that the highest structural diversity is not often compatible with the concept of species diversity. On PRP 1 high diameter differentiation has led to lower values of species diversity, while on PRP 2 rather moderate diameter differentiation supported higher species diversity in lower...
Production of Douglas-Fir in the Czech Republic based on national forest inventory dataOriginal Paper
V. Podrázský, R. Čermák, D. Zahradník, J. Kouba
J. For. Sci., 2013, 59(10):398-404 | DOI: 10.17221/48/2013-JFS
This article summarizes basic estimates of productivity and trend analysis of one of the principal introduced forest tree species in the Czech Republic, i.e. Douglas-fir (Pseudotsuga menziesii [Mirbel] Franco). As a comparison, we also examine grand fir (Abies grandis [D. Don] Lindl), northern red oak (Quercus rubra L. syn. Quercus borealis Michx.) and black locust (Robinia pseudoacacia L). This paper presents estimates of forest land area, standing volume, annual and total increments, distribution of age classes, average ages and site indexes for the period 1979-2010. All data were obtained from the national...
Regional assessment of forest effect on watershed hydrology: Slovakia as a case studyOriginal Paper
T. Hlásny, Z. Sitková, I.Barka
J. For. Sci., 2013, 59(10):405-415 | DOI: 10.17221/55/2013-JFS
Recently, the importance of forest effect on watershed hydrology has been increasingly recognized due to an elevated threat of floods and expected alterations of water regime in watersheds induced by climate change. We assessed the trade-off between natural conditions of 61 basic watersheds in Slovakia and expected water-regulatory capacity of forest in these watersheds. A multi-criteria decision-making scheme was proposed to calculate a coefficient for each watershed indicating the need to regulate its water regime as given by natural conditions, and another coefficient indicating the magnitude of forest water-regulatory capacity given by forest structure...