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Abstract: Extensive sunken and bleeding cankers, shoot blight, and root rot symptoms on European beech (Fagus sylvatica L.) trees have recently been observed in several forest ecosystems in Italy and Slovenia. Since there is little information about the aetiology of these diseases and given the high economic and ecological relevance of these formations, a study was conducted from summer to autumn 2023 in ten sites to define the occurrence, distribution and impact of the main pathogens involved. A total of 116 symptomatic samples were collected and processed. Based on colony appearance, morphological features and DNA sequence data, six species belonging to the genera Botryosphaeria, Dothiorella, Diplodia, Neofusicoccum (fungi) and Phytophthora (oomycetes) were isolated and identified. Pathogenicity tests performed on potted European beech seedlings satisfied Koch postulates and highlighted that Diplodia corticola, Neofusicoccum parvum and Phytophthora plurivora are the main agents involved in the extensive decline affecting European beech ecosystems in Italy and Slovenia.
Keywords: Diplodia corticola, beech decline, invasive species, emerging diseases, co-infections
Published in DiRROS: 27.11.2024; Views: 127; Downloads: 748
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Keywords: agricultural input, output prices, price volatility, meat industry, climate change, GMG emissions, smale cattle herds, Slovenia, environmental regulations, animal welfare
Published in DiRROS: 27.11.2024; Views: 104; Downloads: 37
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Keywords: varstvo gozdov, morfološke analize
Published in DiRROS: 26.11.2024; Views: 83; Downloads: 42
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Abstract: This study examines the factors that influence the decision-making rationality of private forest owners (PFOs) when implementing salvage logging after large-scale natural disturbances. The literature suggests two main responses to large large-scale natural disturbances: performing salvage logging and no salvage at all. When salvage logging is carried out, two different strategies can be applied: clearing, i.e. all trees are removed, including damaged trees and standing survivors; and salvaging, i.e. damaged trees are removed but the surviving trees are left and some dead trees are left standing. In an online survey conducted in Slovenia in March and April 2022, responses were collected from 1515 forest-owning households. A logistic regression model was created to analyse the data and understand how socio-demographic characteristics, characteristics of forest property, forest management activities and the market influence their decisions. The results show that previous management activities and cooperation with service providers significantly influence PFOs' decision-making rationality to implement salvage logging. The study contributes to a nuanced understanding of the complex decision-making processes in forestry. Future research opportunities lie in investigating specific aspects of past management activities and understanding the dynamics in cooperation between different actors to develop customised policies for effective forest management after large-scale natural disturbances.
Keywords: forestry, environmental disturbances, private forest owners, decision making process, post-damage management, logistic regression analysis
Published in DiRROS: 26.11.2024; Views: 88; Downloads: 21
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Keywords: varstvo gozdov, morfološke analize
Published in DiRROS: 26.11.2024; Views: 86; Downloads: 0
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