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Struktura in funkcija odmrlih dreves v gozdovih z različnimi režimi gospodarjenja : magistrsko delo
Györek, Natalija (Author), Diaci, Jurij (Mentor) More about this mentor... This link opens in a new window

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Abstract
Gospodarjenje z odmrlim drevjem, predvsem v zasebnih gozdovih Slovenije, je neusmerjeno, in tako niso zagotovljeni ustrezni življenjski pogoji za mnoge rastlinske in živalske vrste, ki potrebujejo svojevrstne habitate. Za namene magistrskega dela smo primerjali količino in strukturo odmrlih drevesnih ostankov med zasebnimi negospodarjenimi gozdnimi površinami (stratumi) in gospodarjenimi gozdnimi površinami (stratumi) na dveh izbranih fitogeografskihobmočjih Slovenije. Analizirali smo tudi podatke o odmrlem drevju s stalnih vzorčnih ploskev, na ravni treh gozdnogospodarskih enot in dveh gozdnogospodarskih območij, kjer smo izbrali stratume. Ugotovili smo statistično značilne razlike v količini in strukturi odmrlih dreves med negospodarjenimi in gospodarjenimi stratumi. Največ odmrlih drevesnih ostankovje na gozdni površini ob reki Muri, in sicer 99,3 m3/ha. V treh preostalih izbranih negospodarjenih stratumih se vrednosti gibljejo med 17,5 in 29,72 m3/ha. V vseh treh gospodarjenih stratumih je odmrlih drevesnih ostankov malo, v povprečju 2,75 m3/ha, neugodna pa je tudi njihova struktura.Razlike v količini in strukturi odmrlih drevesnih ostankov med negospodarjenimi stratumi lahko pojasnimo z različnimi sestojnimi razvojnimi fazami, drevesno sestavo in mikroklimatskimi pogoji, med gospodarjenimi in negospodarjenimi stratumi pa prihaja do razlik zaradi intenzivnosti gospodarjenja. V gozdnogospodarskih enotah Ravensko, Vzhodno Goričko in Tuhinj-Motnik je odmrlih dreves v povprečju med 4,09 in 9,29 m3/ha, Na murskosoboškem gozdnogospodarskem območju je povprečna količina odmrlih dreves, izračunana iz podatkov s stalnih vzorčnih ploskev 4,91 m3/ha, medtem ko je odmrlih dreves na ljubljanskem območju povprečno 22,37 m3/ha. Režim gospodarjenja naj bi bil oblikovan tako, da bi zagotavljal raznovrstnost odmrlih drevesnih ostankov glede količine, velikosti, stopnje razkroja, porazdelitve in drevesnih vrst.

Language:Slovenian
Keywords:staro in odmrlo drevje, pomen, gospodarjenje, zasebni gozdovi, Slovenija
Work type:Master's thesis (m2)
Tipology:2.09 - Master's Thesis
Organization:BF - Biotechnical Faculty
Year:2008
Publisher:[N. Györek]
Number of pages:XI, 109 str.
Place:Ljubljana
UDC:630*23:630*81(043.2)=163.6
COBISS.SI-ID:2291878 This link opens in a new window
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Downloads:251
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Secondary language

Language:English
Abstract:
Management of dead trees, principally in Sloveniaćs private forests, is nonoriented. Thus, adequate living conditions for many plant and animal species, which need their peculiar habitats, are not provided. For the purposeof the Master of Science Thesis, the quantity and structure of the coarse woody debris (CWD) among private unmanaged forest areas (strata) and managed forest areas (strata) were compared in two chosen fitogeographic regions of Slovenia. Moreover, data on the dead trees from permanent sample plots at the level of three forest management units and two forest management areas, where the strata were chosen, were analysed. Statistically significant differences in the quantity and structure of the CWD in unmanaged strata and managed strata were found. The most CWD are in the forest area of the Mura River, namely 99.3 m3/ha. In three of the chosen residual unmanaged strata, the values range between 17.5 and 29.72 m3/ha. In all three managed strata thelevel of the CWD is low, on average 2.75 m3/ha, moreover, their structure is unfavourable. The differences in the quantity and structure of the CWD among unmanaged strata can be explained by different phases of standsć development, tree structure, and microclimatic conditions. Whereas the differences between the managed and unmanaged strata occur due to the managementćs intensity. In the Forest Management Units Ravensko, Eastern Goričko and Tuhinj-Motnik, the amount of dead trees is on average between 4.09and 9.29 m3/ha. In the Forest Management Area Murska Sobota, the average quantity of dead trees is 4.91 m3/ha, calculated from data of permanent sampleplots, while the average amount of dead trees in the area of Ljubljana is 22.37 m3/ha. The management regime should be formed so as to provide diversification of the CWD in terms of quantity, size, degradation stages, distribution and tree species.


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