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The research aims to examine the pace of growth of lodgepole pine, the amount of damage caused by biungulates and the quality of trunks for lodgepole pine provenances growing in the western part of Latvia in the areas around Ugale and Kuldiga, identifying the most damage-resistant and promising provenances for cultivation in Latvia. In Latvia, foresters and plant breeders have been working for years to increase the quality and productivity of local tree species, while assessing various forest stand management patt...

Today about 10% of Latvia's territory is occupied by peatlands (645,100 ha), but the extraction of peat happens in only 4% (25,739 ha) of the total. In regulatory documents peat bogs are mentioned as having a very high probability of flammability (in the context of climate change and other natural elements: drought, heat, lightning and deliberate or unintentional human activity). This indicates the need to improve fire safety by conducting research and improving regulatory frameworks. The aim of the study was to a...

In economic forests, the productivity of forest stands should be increased as much as possible, because the global demand for timber is growing every year. Planted forest trees can be realized using the advantages of selection, naturally regenerated - faster growth can be achieved by improving the growing conditions and limiting factors that reduce or delay the formation of growth. Data were collected in 6-year-old P.sylvestris forest stands Cladinoso-callunosa and Vacciniosa. The plots were established in an area...

One of the long-term goals of the certification systems (FSC (Forest Stewardship Council) and PEFC (Program for the Endorsement of Forest Certification)) of sustainably managed forests that provide both social, environmental, and economic benefits is to completely phase out the use of chemical pesticides to protect planting material. It is in the interest of both nurseries and forest owners to find successful alternative, environmentally friendly solutions to safeguard pine saplings against Curculionidae. The stud...