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Title:Hidrološki odziv na spremembo sestojne zgradbe gozdov po velikopovršinskih motnjah v hudourniškem vodozbirnem območju
Authors:ID Mekina, Bine (Author)
Files:.pdf PDF - Presentation file, download (994,59 KB)
MD5: CEC6635DEBD5805F7A70EBFF7E873C39
 
Language:Slovenian
Typology:1.01 - Original Scientific Article
Organization:Logo ZGDS - Association of Forestry Societies of Slovenia
Abstract:Varovalna vloga gozdov je ključna, zlasti ob neizogibnih podnebnih spremembah, ki v alpskem svetu še povečujejo tveganje za hudourniške procese. Za analizo vpliva velikopovršinskih motenj na površinski odtok in hudourniške procese smo izbrali Dovški potok na južnem pobočju Karavank, kjer so bili v zadnjih desetih letih gozdovi zelo poškodovani. Z uporabo Kresnikove metode in hidrološkega modela ZEMOKOST smo določili pet scenarijev stanja gozda in ocenili različne razplete padavinskih dogodkov. Po enačbi Kresnik je stoletni pretok Dovškega potoka Q100 = 5,8 m³/s, medtem ko je bil leta 1961 izračunan Q100 = 6,0 m³/s. Z modelom ZEMOKOST smo za različne scenarije ugotovili različne rezultate. Leta 2015, pred vplivom motenj gozdov, je bil Q100 = 3,6 m³/s, in sicer 45 minut po začetku padavin. Leta 2019, po motnjah gozdov, pa se je Q100 povečal na 4,9 m³/s in se pojavil 39 minut po začetku padavin. Analiza hidravlične prevodnosti obstoječe hudourniške ureditve je pokazala, da le-ta ni več primerna glede na povečanje pretoka. Poleg tega smo na podlagi terenskih raziskav ugotovili, da erozijski drobir na območju pomeni nevarnost za nastanek drobirskih in blatnih tokov, kar bi lahko ogrozilo vas Dovje.
Keywords:podnebne spremembe, gozdovi, velikopovršinske motnje, sanitarna sečnja, Dovški potok, ZEMOKOST, hidravlična analiza, Polenijeva prelivna metoda
Publication version:Version of Record
Publication date:01.01.2025
Year of publishing:2025
Number of pages:str. 187-207
Numbering:Letn. 83, št. 7/8
UDC:630*116:630*111:630*4
ISSN on article:0017-2723
COBISS.SI-ID:262059267 New window
Publication date in DiRROS:18.12.2025
Views:15
Downloads:4
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Record is a part of a journal

Title:Gozdarski vestnik : slovenska strokovna revija za gozdarstvo
Shortened title:Gozd. vestn.
Publisher:Zveza gozdarskih društev Slovenije
ISSN:0017-2723
COBISS.SI-ID:3736834 New window

Licences

License:CC BY-SA 4.0, Creative Commons Attribution-ShareAlike 4.0 International
Link:http://creativecommons.org/licenses/by-sa/4.0/
Description:This Creative Commons license is very similar to the regular Attribution license, but requires the release of all derivative works under this same license.

Secondary language

Language:English
Title:Hydrological response to forest stand structure change triggered by natural disturbance in a torrential catchment
Abstract:The protective role of forests is crucial, especially in the face of unavoidable climate change, which increases the risk of torrential processes in the alpine environment. To analyse the effects of large forest disturbances on runoff and torrential processes, we chose the Dovski potok on the southern slope of the Karawanken Mountains, where forests have been severely damaged in the last decade. Using the Kresnik method and the hydrological model ZEMOKOST, five scenarios for the state of the forests were determined and different scenarios of precipitation events were evaluated. According to the Kresnik equation, the 100year discharge of the Dovski potok is Q100 = 5.8 m³/s, whereas n 1961 it was calculated as Q100 = 6.0 m³/s. The ZEMOKOST model provided different results for the different scenarios. In 2015, before the disturbances, the Q100 = 3.6 m³/s and occurred 45 minutes after the onset of the rainfall. In 2019, after the storms, Q100 increased to 4.9 m³/s and occurred 39 minutes after the onset of rainfall. Analysis of the hydraulic conductivity of the existing dams has shown that it is no longer sufficient to cope with the increase in runoff. In addition, on-site investigations have shown that the erosion debris deposits in the area harbour the risk of debris flows and mudslides that could endanger the village of Dovje.
Keywords:climate change, forest, large-scale disturbance, sanitary felling, ZEMOKOST, hydraulic analysis, Poleni spillway method


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  1. Gozdarski vestnik

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