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Ocenjevanje prostorske zgradbe jelovo-bukovih sestojev = Assessing spatial structure in the beech and silver fir forest standsHladnik, DavidV treh sestojih jelovo-bukovih gozdov na visokem krasu smo raziskali sestojno strukturo in njeno prostorsko zgradbo. Na treh raziskovalnih ploskvah, velikih2 ha, smo izmerili koordinate dreves ter ... njihove dendrometrijske znake.Raziskovalne ploskve v treh sestojih se med seboj razlikujejo po svoji zgradbi, gostotah in tudi po parametrih prostorske zgradbe, ki smo jih ocenilina podlagi metod za ocenjevanje prostorske razmestitve dreves. Za drevesa v I in II debelinskem razredu smo izračunali višje povprečne relativnerazlike v sestojnih gostotah kot za debelejša drevesa. Ko so vzorčne ploskve presegle velikost 6 a, so bile povprečne relativne razlike pri ocenjevanju števila dreves v III debelinskem razredu v vseh treh sestojih manjše od 30 % v vseh treh sestojih. Na podlagi teoretičnih modelov je bilo mogoče o šopasti rasti dreves sklepati le v sestoju s prevladujočo jelko. V dveh sestojih jelke in bukve smo določili tudi sestojne skupine, ki so jih oblikovala drevesa na površini do 0,5 ha. Za jelko, smreko in bukev smo ocenili (P<0,01), da se njihova prostorska razmestitev razlikuje od slučajnostne, te drevesne vrste pa so oblikovale tudi različno velike sestojneskupine na površini do 0,25 ha. Ker so bila dominatna drevesa v vseh treh sestojih enakomerno in slučajnostno razporejena, sklepamo, da sestoji tudi po obdobju propadanja jelke niso postali razgrajeni.Source: Zbornik gozdarstva in lesarstva = Research reports : forest and wood science & technology. - ISSN 0351-3114 (Št. 74, 2004, str. 165-186)Type of material - article, component part ; adult, seriousPublish date - 2004Language - slovenianCOBISS.SI-ID - 1325990
source: Zbornik gozdarstva in lesarstva = Research reports : forest and wood science & technology. - ISSN 0351-3114 (Št. 74, 2004, str. 165-186)
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Hladnik, David | 06470 |
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