Abstract
Aim: The aim of this paper is to reveal evaluation findings in respect of forest fire risk at Białowieża Primeval Forest, in the context of spruce trees degradation caused by a bark beetle invasion. The article is based on the report “Level of forest fire risk and threat to humans in relation to the volume of dead wood in Białowieża Forest” [1], which was commissioned by the Ministry of Environment and financed by the National Fund for Environmental Protection and Water Management.
Introduction: Białowieża Primeval Forest is of particular importance in relation to environmental values. However, in recent years, spruce tree stock has been exposed to progressive degradation across an area exceeding thousands of hectares, caused by an unusually large infestation of bark beetle (Ips typographus L.). Such developments, accompanied by symptoms associated with natural disasters, have increased the presence of combustible materials creating a potential fire hazard. Current debate and controversy amongst diverse interest groups revolves around the question of whether active human intervention should constrain the degree of degradation in the precious environment or avoid interference and allow nature to pursue its own course. One essential element of proactive defence at Białowieża Forest is an endeavour to protect it from the risk of fire. For this reason the article contains an evaluation of existing fire hazards, an analysis of current protection systems in place and proposals for the improvement of such systems.
Methodology: An evaluation of fire risk in Białowieża Primeval Forest was made by reference to the following: Forest fire risk categorization for Białowieża forest area management plan and conservation plan of Białowieża National Park; frequency of forest fires during the years 2000--2015; current forest fire protection system in force and evaluation of the system in context of current legal requirements, taking account of influences on the risk of fire caused by a volumetric increase and type of biomass generated through degradation.
Conclusions: The risk associated with Forest fires has increased as a result of spruce trees degradation in Białowieża Primeval Forest. In addition to this increase of combustible material other factors, which contribute, include the emergence of grass overlays across dead wood areas. Such grass, when dry, leads to outbreaks and propagation of fires in forest areas. Abandonment of prevention activities and departure from forest management principles compel the adaptation and adjustment of existing fire protection systems in accordance with emerging threats.
Keywords: Białowieża Primeval Forest, fire risk, dead wood
Type of article: original scientific article