161. Poročilo o preskusu št.: LVG 2022-008 : vzorec št. 2022/00010 : namen testiranja: sum na: Dothistroma piniNikica Ogris, Tašja Cvelbar, Špela Jagodic, Maša Zagorac, Barbara Piškur, 2022, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, bor, Dothistroma, Lecanosticta, rjavenje borovih iglic, rdeča pegavost borovih iglic Published in DiRROS: 20.04.2022; Views: 595; Downloads: 189 Full text (1,16 MB) |
162. Statistika obiskov spletnega portala Varstvo gozdov v obdobju 2020–2022Nikica Ogris, 2022, other scientific articles Keywords: gozdovi, varstvo gozdov, informacijski sistem, komunikacija, podatkovna zbirka, znanje, zdravje gozda, internet, medmrežje, kontinuiran vir, statistična analiza, obisk spletnega portala Published in DiRROS: 13.04.2022; Views: 516; Downloads: 345 Full text (144,01 KB) This document has many files! More... |
163. Verjetnostna in količinska napoved sanitarnega poseka smreke zaradi podlubnikov v Sloveniji v 2022Nikica Ogris, Maarten De Groot, 2022, other scientific articles Keywords: gozdovi, varstvo gozdov, navadna smreka, Picea abies, sanitarni posek, napoved, prognoza, ogroženost, model, smrekovi podlubniki, Ips typographus, Pityogenes chalcographus Published in DiRROS: 13.04.2022; Views: 570; Downloads: 372 Full text (758,71 KB) This document has many files! More... |
164. Poročilo o preskusu št.: LVG 2022-007 : vzorec št. 2022/00009 : namen testiranja: sum na: GlivaNikica Ogris, 2022, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, brin, Juniperus, Herpotrichia juniperi, pajčevinasta črnoba iglavcev, kloroza iglic, pomanjkanje hranil Published in DiRROS: 23.03.2022; Views: 525; Downloads: 151 Full text (1,12 MB) |
165. Poročilo o preskusu št.: LVG 2022-006 : vzorec št. 2022/00001 : namen testiranja: sum na: ArmillariaNikica Ogris, Maša Zagorac, Tašja Cvelbar, Zina Devetak, Barbara Piškur, 2022, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, veliki pajesen, Ailanthus altissima, sivorumena mraznica, Armillaria mellea, Botryosphaeria dothidea, sušenje, sušni stres, podnebne spremembe Published in DiRROS: 17.03.2022; Views: 617; Downloads: 222 Full text (1,12 MB) |
166. Poročilo o preskusu št.: LVG 2022-005 : vzorec št. 2022/00008 : namen testiranja: sum na: GlivaNikica Ogris, 2022, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, gorski javor, Acer pseudoplatanus, rak, rakasta razjeda, gliva, Eutypa lata, mraznica, Armillaria Published in DiRROS: 14.03.2022; Views: 643; Downloads: 190 Full text (1,12 MB) |
167. Poročilo o preskusu št.: LVG 2022-004 : vzorec št. 2022/00007 : namen testiranja: sum na: neznanoNikica Ogris, 2022, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, macesen, Larix decidua, macesnov rak, Lachnellula willkommii, bolezen Published in DiRROS: 04.03.2022; Views: 602; Downloads: 188 Full text (1,11 MB) |
168. Poročilo o preskusu št.: LVG 2022-003 : vzorec št. 2022/00005 : namen testiranja: sum na: Rizosphaera piniNikica Ogris, Maarten De Groot, 2022, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, smreka, Picea abies, Phomopsis, sušenje, sušni stres, odmiranje vej, kompleksna bolezen Published in DiRROS: 04.03.2022; Views: 682; Downloads: 235 Full text (1,12 MB) |
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170. Combining an occurrence model and a quantitative model for the prediction of the sanitary felling of Norway spruce because of bark beetlesMaarten De Groot, Nikica Ogris, 2022, original scientific article Abstract: The European spruce bark beetle (Ips typographus L.) is an eruptive forest pest that has caused a great deal of damage in the last decades because of increasing climatic extremes. In order to effectively manage outbreaks of this pest, it is important to predict where they will occur in the future. In this study we developed a predictive model of the sanitary felling of Norway spruce (Picea abies (L.) H. Karst.) because of bark beetles. We used a time series of sanitary felling because of bark beetles from 1996 to 2020 in Slovenia. For the explanatory variables, we used soil, site, climate, geographic, and tree damage data from the previous year. The model showed that sanitary felling is negatively correlated with slope, soil depth, soil cation exchange capacity, and Standard Precipitation Index (less sanitary felling in wet years). On the other hand, soil base saturation percentage, temperature, sanitary felling because of bark beetles from the previous year, sanitary felling because of other abiotic factors from the previous year, and the amount of spruce were positively correlated with the sanitary felling of Norway spruce due to bark beetles. The model had an R2 of 0.38. A prediction was performed for 2021 combining an occurrence model and a quantitative model. The model can be used to predict the amount of sanitary felling of Norway spruce due to bark beetles and to refine the risk map for the next year, which can be used for forest management planning and economic loss predictions. Keywords: sanitary felling, prediction, Ips typographus, Picea abies, Slovenia, forecasting, insect outbreak forest pest Published in DiRROS: 21.02.2022; Views: 671; Downloads: 551 Full text (1,24 MB) This document has many files! More... |