Journal of Forest Science, 2007 (vol. 53), issue 4
About the benefits of poststratification in forest inventories
J. Saborowski, J. Cancino
J. For. Sci., 2007, 53(4):139-148 | DOI: 10.17221/2171-JFS 
A large virtual population is created based on the GIS data base of a forest district and inventory data. It serves as a population where large scale inventories with systematic and simple random poststratified estimators can be simulated and the gains in precision studied. Despite their selfweighting property, systematic samples combined with poststratification can still be clearly more efficient than unstratified systematic samples, the gain in precision being close to that resulting from poststratified over simple random samples. The poststratified variance estimator for the conditional variance given the within strata sample sizes served as a satisfying...
Uniqueness of limestone soil-forming substrate in the forest ecosystem classification
P. Šamonil
J. For. Sci., 2007, 53(4):149-161 | DOI: 10.17221/2014-JFS
The uniqueness of limestone soil-forming substrate was assessed with respect to the classification of forest ecosystems. 50 soil profiles from the Bohemian Karst were studied and the results were confronted with previously published works from other karst areas. The evaluation of soil profiles was based on a macroscopic description, on the results of chemical and physicochemical analyses, and on a micromorphological study. The carbonate bedrock was a cause of specific genesis of soils in these sites - both recent and relict ones (terrae calcis). However, it does not always condition the unique characteristics of these sites whose differentiation would...
Natural forest regeneration in spruce monocultures in the Ukrainian Beskids - prognosis by FORKOME model
I. Kozak, V. Parpan, G. Potaczala, H. Kozak, A. Zawadzki
J. For. Sci., 2007, 53(4):162-169 | DOI: 10.17221/2355-JFS
This paper presents the results of investigations on natural forest regeneration in Norway spruce (Picea abies L. Karst.) monocultures in the Ukrainian Beskids with the use of FORKOME model prognostic possibilities. Different variants of regeneration methods are presented. Selective cutting with planting was determined as the most effective: spruce selective cutting with simultaneous planting of target species: beech (Fagus sylvatica L.) and fir (Abies alba Mill.) with admixture of ash (Fraxinus excelsior L.). Beech and fir biomass increases rapidly over the first 20 years - then it stabilizes. After another 20-30 years...
Production potential and ecological stability of mixed forest stands in uplands - VI. A beech/larch stand on a mesotrophic site of the Křtiny Training Forest Enterprise
V. Hurt, P. Kantor
J. For. Sci., 2007, 53(4):170-184 | DOI: 10.17221/2170-JFS
The paper is the 6th report on the production potential and stability of mixed forest stands in uplands. A mixed beech/larch stand that was established by natural regeneration in 1934 to 1942 is assessed. The stand is situated at an altitude of 460 m above sea level. It has been left to its natural development since 1961. At that time, the stand was characterized as an individually mixed, diameter- and height-differentiated 25-year pole-stage stand. The proportion of larch and beech amounted to 40% and 17%, respectively. Hornbeam (25%), oak (11%) and to a lesser extent birch (5%) and spruce (3%) also occurred in the stand. In the course...
A pheasantry as the habitat of small terrestrial mammals (Rodentia, Insectivora) in southern Moravia (Czech Republic)
J. Suchomel, M. Heroldová
J. For. Sci., 2007, 53(4):185-191 | DOI: 10.17221/2015-JFS
Communities of small terrestrial mammals were studied in the specific environment of two pheasantries in southern Moravia with different intensity of pheasant management and different diversity of biotopes (RB - intensive pheasantry, HJ - extensive pheasantry). In total, ten species from the order Rodentia and Insectivora were found there in 2002-2005. The rodents Apodemus flavicollis, A. sylvaticus and Clethrionomys glareolus dominated in these habitats. On the other hand, the populations of insectivores were very low, Crocidura leucodon and C. suaveolens being interesting species. RB with the higher variety of biotopes...