Hazardous forests for spruce bark beetle
Description
Analysis of risk forests for infestation of spruce bark beetle with zone rings from protected areas. The material is aimed at the counties that are part of the control area for spruce bark beetles, i.e. for large parts of Götaland and Svealand.
Data is not available on-line, but is available via NV-08582-14.
Forests in the Swedish Forest Agency’s risk index are described here as risk forests. In principle, it is spruce forests with the risk of infestation by spruce bark beetles. These have been identified on the basis of age, volume, habitat, etc. To give a clear picture of how risk forests are distributed in and around each nature reserve or national park, the Swedish Environmental Protection Agency has carried out a spruce forest analysis with zone rings. In this, the risk forests in and around each protected area are mapped in zones so that it is clear:
• How much risk forest there is in each nature reserve, national park, etc.
• How much risk forest there is in the immediate zone, i.e., directly adjacent to the nature reserve, 1-300 meters from risk forest in nature reserves
• How much risk forest there is in the outer immediate zone, i.e. 301-500 meters from risk forest in nature reserves
• In addition, risk forests from the surrounding zone are also included to give a picture of the situation in the landscape, 501-1000 metres from risk forests in nature reserves.
The data is intended to serve as a knowledge base for the County Administrative Boards in their work to reduce attacks from spruce bark beetles in protected forests, but the shape files and statistics in the attached Excel file can of course be of interest to others as well.
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