Journal of Forest Science, 2005 (vol. 51), issue 3

Reaction of Silver fir (Abies alba Mill.) plantation to fertilization

I. Kupka

J. For. Sci., 2005, 51(3):95-100 | DOI: 10.17221/4547-JFS  

Silver fir as a domestic species is an important tree in our forests. Unfortunately it has suffered from serious dieback in Central Europe in the last decades. Reintroduction of Silver fir is not an easy task as seedlings and saplings are sensitive to many environmental harmful factors and to game browsing damage especially in early stages after germination. The fertilization of Silver fir saplings could help shorten the sensitive period of the tree species. Silver fir research plots were founded in 1999 to observe an impact of different fertilizers on its height growth. Applications of conventional as well as modern fertilizers confirmed the positive...

Development of beech necrotic disease in the growing phase of maturing stand under air pollution stress

A. Cicák, I. Mihál

J. For. Sci., 2005, 51(3):101-107 | DOI: 10.17221/4548-JFS  

The paper compares the state of the necrotic disease of beech stem bark on three research plots in 2004 with 1995. The investigated objects were three research plots of beech in the growing phase of maturing stand in Central Slovakia subjected to different air pollution stress. Larger negative changes in the beech necrotic disease were recorded on a plot situated in the close vicinity (1.5 km) of the aluminium plant. We consider the permanent negative influence of pollutants from the aluminium plant on the vitality of trees as the main cause of the negative changes. The health state of beech (defoliation) on this research plot was also permanently...

The policy process on climate change

Z. Sarvašová, A. Kaliszewski

J. For. Sci., 2005, 51(3):108-114 | DOI: 10.17221/4549-JFS  

The United Nations Framework Convention on Climate Change accepted in 1992 at the Earth Summit in Rio de Janeiro provides principles and framework for cooperative international action on mitigating climate change. But it soon became clear that more radical targets were needed to encourage particular countries to reduce greenhouse gas emissions. In response, countries that have ratified the United Nation Framework Convention on Climate Change accepted the Kyoto Protocol in 1997. The rulebook for how the Kyoto Protocol will be implemented - the Marrakech Accord, was agreed in 2001. This paper describes political instruments and facilities of mitigating...

Research on principles of making access to mountain forests by forest road networki

P. Klč

J. For. Sci., 2005, 51(3):115-126 | DOI: 10.17221/4550-JFS  

We consider making access to forests and forest complexes as an optimal allocation of routes of forest roads, land and air communications and transport routes with their optimal structure (composition, proportion of separate types) being implemented within forest transportation network in such a way that the length of constructed communications and their area (area, coverage of production area) would be as small as possible and at the same time the highest possible percentage of access to the given area in the particular territory would be reached as well as optimal skidding distance for applying the latest technologies of timber transportation in...

Elementary financial analysis of the Forests of the Czech Republic, state enterprise

V. Kupčák

J. For. Sci., 2005, 51(3):127-140 | DOI: 10.17221/4551-JFS  

The basic feature of an economic reform of the forestry in the Czech Republic after 1990 was separation of supervision in the state forests from operating performance. The Forests of the Czech Republic, state enterprise, was charged with management and supervision, hence economic activities of the subject are provided on the basis of contracts by entrepreneurial units called contractors in the forestry. The purpose of the paper is economic analysis of the Forests of the Czech Republic, state enterprise, in the period 1998-2002. The objective is the construction and testing of an elementary method of financial analysis as well as outline of financial...