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The current distribution of black locust (Robinia pseudoacacia L.) in Slovenia and predictions for the future
No full textIn this study, we analyse the growing stock of black locust (Robinia pseudoacacia L.) and its share in Slovenian forests. In addition, based on empirical model and climate change scenarios, we predict its distribution and share in the future. Black locust is the commonest non-native tree species in Slovenian forests. The current growing stock of black locust is near 0.6% of the total growing stock of our forests. This tree species has the highest share in forests of the Regional Unit of Murska Sobota and Regional Karst Area Unit (Sežana). Should the recent climate change scenarios, which all predict an increase in mean air temperature in the future, proved to be true, the share of the black locust’ growing stock will increase gradually in the eastern, north-eastern and
south-western parts of Slovenia. Higher share of this species can be expected also in the lowlands and hilly area of central Slovenia. According to the forecasts of the model, the black locust’s growing stock could at least double in comparison with its present state
by the end of the century. In such situation our forestry will be faced with even more difficulties associated with this invasive tree species. Through a more consistent implementation of the concepts of sustainability in forestry, the balance between this invasive alien species, which is less desirable in our forests, and its many benefits and interests of the forest owners needs to be found
Tree diseases determined by the reporting, prognostic and diagnostic service for forests in Slovenia 1982-2012
No full textThe Reporting, Prognostic and Diagnostic (RPD) service for forests is a legal forest protection organization in Slovenia and part of the public forest service. The aim of our study was to analyse RPD reports from 1982 to 2012. We analysed 120 reports that contained 992 records of tree diseases encompassing 189 species and genera. The most frequently recorded were foliage diseases (351 records, 42 species), needle diseases (162 records, 23 species), rots (111 records, 56 species), cankers (73 records, 9 species), and shoot diseases (72 records, 14 species). Ten most frequently recorded species were the following fungi: Erysiphe alphitoides, Lophodermium spp., Cryphonectria parasitica, Rhytisma acerinum, Sawadaea bicornis, Diplodia pinea, Hymenoscyphus pseudoalbidus, Mycosphaerella pini, Blumeriella jaapii, and Cronartium ribicola
Plasticity in dendroclimatic response across the distribution range of aleppo pine (Pinus halepensis)
No full textWe investigated the variability of the climate-growth relationship of Aleppo pine across its distribution range in the Mediterranean Basin. We constructed a network of tree-ring index chronologies from 63 sites across the region. Correlation function analysis identified the relationships of tree-ring index to climate factors for each site. We also estimated the dominant climatic gradients of the region using principal component analysis of monthly, seasonal, and annual mean temperature and total precipitation from 1,068 climatic gridpoints. Variation in ring width index was primarily related to precipitation and secondarily to temperature. However, we found that the dendroclimatic relationship depended on the position of the site along the climatic gradient. In the southern part of the distribution range, where temperature was generally higher and precipitation lower than the regional average, reduced growth was also associated with warm and dry conditions. In the northern part, where the average temperature was lower and the precipitation more abundant than the regional average, reduced growth was associated with cool conditions. Thus, our study highlights the substantial plasticity of Aleppo pine in response to different climatic conditions. These results do not resolve the source of response variability as being due to either genetic variation in provenance, to phenotypic plasticity, or a combination of factors. However, as current growth responses to inter-annual climate variability vary spatially across existing climate gradients, future climategrowth relationships will also likely be determined by differential adaptation and/or acclimation responses to spatial climatic variation. The contribution of local adaptation and/or phenotypic plasticity across populations to the persistence of species under global warming could be decisive for prediction of climate change impacts across populations. In this sense, a more complex forest dynamics modeling approach that includes the contribution of genetic variation and phenotypic plasticity can improve the reliability of the ecological inferences derived from the climate-growth relationships
Poročilo o projektni nalogi ManFor C.BD LIFE09ENV/IT/000078, mejnik 3: po pogodbi o sofinanciranju projekte naloge LIFE09ENV/IT/000078 "Managing forests for multiple purposes: carbon, biodiversity and socio-economic wellbeing", št.: MOP 2311-11-000060
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Monitoring of wood fuel prices in Slovenia, Austria, Italy, Croatia, Romania, Germany, Spain and Ireland freport was prepared
Get PDFNEWFOR - New technologies for a better mountaing forest timber monilization : Work package 7: Cost & benefits evaluation : Action 7.1: State of the art on the tools and methodologies currently used in Slovenia
Get PDFCorrelation between degradation of Beech wood and penetration of Pilodyn 6J needle
No full textAssessment of white rot decay is one of the most important issues for appropriate treatment of infested wooden commodities,
particularly damaged constructions. Pilodyn is a well-established tool for assessing density of several commercially important
plantation species, therefore we were interested in its suitability to evaluate the rate of decay as well. The Pilodyn measurements
performed on common beech wood (Fagus sylvatica), exposed to three white rot fungi (Trametes versicolor, Hypoxylon
fragiforme and Pleurotus ostreatus) according to the modified EN 113 procedure, indicate correlations between Pilodyn needle
penetration and mass loss