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Long-term summer sunshine/moisture stress reconstruction from tree-ring widths from Bosnia and Herzegovina
No full textWe present the first summer sunshine reconstruction from tree-ring data for the western part of the Balkan
Peninsula. Summer sunshine is tightly connected with moisture stress in trees, because the moisture stress and therefore the width of annual tree-rings is under the influence of
the direct and interactive effects of sunshine duration (temperature, precipitation, cloud cover and evapotranspiration).
The reconstruction is based on a calibrated z-scored mean
chronology, calculated from tree-ring width measurements
from 7 representative black pine (Pinus nigra
Arnold) sites
in Bosnia and Herzegovina (BiH). A combined regression
and scaling approach was used for the reconstruction of the
summer sunshine. We found a significant negative correlation (r=−0.54, p<0.0001) with mean June–July sunshine
hours from Osijek meteorological station (Croatia). The developed model was used for reconstruction of summer sun-
shine for the time period 1660–2010. We identified extreme
summer events and compared them to available documentary
historical sources of drought, volcanic eruptions and other reconstructions from the broader region. All extreme summers
with low sunshine hours (1712, 1810, 1815, 1843, 1899 and
1966) are connected with volcanic eruptions
Vpliv klimatskih sprememb na trajnost, stabilnost, biodiverziteto sestojev bukve in črnega bora na Balkanu ezaključno poročilo raziskovalnega projketa ARRS-RPROJ-ZP-2013-256
Get PDFOpredelitev okoljskega vidika za izbor upravičencev nepovratne pomoči PRP 2014-2020 pri nakupu nove mehanizacije in opreme za sečnjo in spravilo lesa: strokovno mnenje
Get PDFMycorrhizosphere Complexity
No full textMycorrhizal fungi have evolved with their plant partners and enabled them with better growth in stressed and disturbed environments by better nutrient acquisition and protection against pathogens. Any stress or disturbance belowground is reflected first in changes in mycorrhizal community structure. The complex mycorrhizal networks and interactions among mycorrhizosphere organisms regulate the carbon dynamics and stability of forest ecosystems by ‘beneficial interactions’ or ‘collaboration’ rather than by competition—especially under stress and disturbance. This chapter provides an overview of mycorrhizal forms, structure and functions, their vulnerability and their central role in complex mycorrhizosphere interactions. Their disruption may lead to the loss of essential functions of forest ecosystems. The conservation of belowground interactions should be among priority areas of future research and monitoring programmes and strategies
Species diversity and composition of small mammal communities in Goteniška gora (S Slovenia)
No full textAlthough a considerable improvement in knowledge about small mammal fauna in Slovenia has been noted over the past 30 years, the group is still understudied. Here we present results of the nine-year trapping and information on abundance and community assemblage of small mammals of Goteniška gora, a mountain in southern Slovenia. Trappings were conducted every September from 2002 to 2010. Traps were set in different habitats, ranging from open-space meadows and stony karst areas to dense fir-beech forests (Abieti-Fagetum dinaricum). At least 12 different species constituted local communities, mostly resembling central European deciduous and mixed forest communities. Some representatives of Alpine small mammal communities and a Pleistocene relict were also present
Monitoring of wood fuel prices in Slovenia, Austria, Italy, Croatia, Romania, Germany, Spain (incl. Catalonia) and Ireland
Get PDFActivity report for the bilateral project Brazil - Slovenia "Ectomycorrhizal fungi and oligochaeta diversity in Brazilian and Slovenian soils" No. 490648/2010-0 (CNP)(Brazil)/BI-BR/11-13-005 (Slovenia) : interim report upon the occasion of visit of the Brazilian partner at the Slovenian Forestry Institute, Ljubljana, Slovenia, 03. 06. 2013 - 14. 06. 2013
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On the use of R programming language in the analyses of spatial data
No full textR is a powerful and increasingly popular programming language with strong graphical and presentation features and large expanŽdability. Although primarily intended for statistical computing, R has paved its way to the field of GIS through the development of specialized extension packages. It offers a wide range of functions at all GIS levels: data acquisition, data manipulation, graphical reŽpresentation and quantitative analysis. The paper presents R as an open source alternative to the existing commercial GIS software. It proves especially well when advanced quantitative methods on spatial data are needed (e.g. spatial modelling). We demonstrate R capabilities through spatial analysis of forest area in Snežnik (South Slovenia), where the possibilities of data import, conversion and export into various GIS formats and possibilities of geostatistics, spatial modelling and spatial visualization are demonstrated