Growth of Norway spruce (Picea abies (L.) Karst.) and European larch (Larix decidua Mill.) on former slash and burn farming areas in Koprivna in the Karavanke mountains
| Autor: | Golob, Janez, Levanič, Tom, Hladnik, David |
|---|---|
| Jazyk: | němčina |
| Rok vydání: | 2021 |
| Předmět: |
stand density index
indeks gostote SDI smreka European larch research plots volume increment Forestry General Medicine General Chemistry SD1-669.5 udc:630*56+630*26:630*17(497.4Koprivna)(045)=163.6 volumenski prirastek Environmental sciences dendrochronological analysis raziskovalne ploskve dendrokronološka analiza diameter increment Norway spruce GE1-350 debelinski prirastek macesen |
| Zdroj: | Acta Silvae et Ligni, Vol 126, Pp 23-39 (2021) Acta Silvae et Ligni, vol. 126, pp. 23-39, 2021. |
| ISSN: | 2335-3953 2335-3112 |
| Popis: | Na podlagi meritev v obdobju 1962–2017 smo na raziskovalnih ploskvah na nekdanjih novinah v katastrski občini Koprivna izračunali debelinske, višinske in volumenske prirastke za najpomembnejši drevesni vrsti - smreko in macesen. Na raziskovalnih ploskvah, ki so bile prepuščene naravnemu razvoju, so srednjetemeljnični premeri manjši, število dreves pa večje od tistih v primerljivih gospodarskih gozdovih. V zadnjih tridesetih letih se je zaradi visokih sestojnih gostot zmanjšalo debelinsko priraščanje dreves smreke in macesna. Z dendrokronološko analizo smo ocenili vpliv klimatskih dejavnikov na priraščanje smreke in macesna. Na podlagi dendrokronološke analize smo ugotovili, da se leta z negativnim odzivom dreves v debelinskem prirastku od leta 1984 pojavljajo pogosteje. Based on previous measurements from 1962 to 2017 on forest research plots located on former slash-and-burn farming areas in the cadastral municipality of Koprivna, the diameter and height increment as well as volume increments of the two main tree species - spruce and larch - were calculated. These set-aside natural research plots have a smaller mean basal area diameter, but the number of trees is higher than in comparable managed forests. Due to the high-density of tree stands over the past thirty years, radial increment of spruce and larch has declined. To determine the influence of environmental factors on radial growth of spruce and larch, a dendrochronological analysis was conducted. According to the dendrochronological analysis of radial increment of trees, the number of years with a negative response has been higher since 1984. |
| Databáze: | OpenAIRE |
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