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Sekundarna sukcesija po požarih v sestojih črnega bora (Pinus nigra Arnold) v zgornjem Posočju : diplomsko delo - univerzitetni študij - 1. stopnja = Post-fire succesion in black pine (Pinus nigra Arnold) stands in the upper Posočje region : B. Sc. Thesis - academic study programmesStritih, AnaV delu smo raziskovali potek sukcesije po požarih v naravnih sestojih črnega bora (Pinus nigra Arnold). Izbrali smo požarišče v Trenti iz leta 2005 in požarišče nad Logom pod Mangartom, kjer se je ... poţar zgodil leta 1979. Postavili smo skupno 22 ploskev velikosti 10x10 m, na delih poţarišča z različno intenziteto poţara ter v ohranjenih sestojih. Na ploskvah smo opravili fitocenološke popise, popisali smo tudi pomladek drevesnih in grmovnih vrst ter sušice in leţeče drevje po stopnjah razkroja. Podatke smo analizirali s pomočjo hierarhične klasifikacije in analize glavnih koordinat. Vegetacijo smo analizirali tudi glede na rastlinske strategije po Grimeu (CSR). Ploskve z različnimi intenzitetami poţara smo primerjali glede na številčnost pomladka z neparametričnimi testi. Ugotavljali smo še korelacijo med odmrlo lesno maso in pomlajevanjem. Ugotovili smo jasne razlike med mlajšim poţariščem in ohranjenimi sestoji, starejše poţarišče pa je ohranjenim sestojem bolj podobno. Po poţaru se je spremenila pokrovnost dominantnih vrst zeliščne plasti (Erica carnea, Calamagrostis varia, Achnatherum calamagrostis), pojavile pa so se nekatere nove vrste, značilne za požarišča. Sukcesijo lahko prikažemo kot prehod od bolj stres-tolerantih vrst k vrstam s kompeticijsko strategijo, medtem ko ruderalna komponenta zaradi slabše produktivnosti rastišča ni izrazita. Na poţarišču so se uspešneje pomlajevale pionirske vrste, medtem ko pri značilnicah zdruţbe Fraxino orni-Pinetum nigrae ni razlik v obnovi med poţariščem in ohranjenimi sestoji. Pozitiven vpliv odmrle lesne mase na pomlajevanje smo ugotovili le v starejšem požarišču.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [A. Stritih], 2013Language - slovenianCOBISS.SI-ID - 3701926
Author
Stritih, Ana
Other authors
Diaci, Jurij |
Rozman, Andrej, 1975-
Topics
požar |
sukcesija |
obnova |
črni bor |
Pinus nigra |
odmrla lesna masa |
Trenta |
Log pod Mangrtom
Library/institution |
City | Acronym | For loan | Other holdings |
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Slovenian Forestry Institute, Forestry Library, Ljubljana | Ljubljana | GIS |
outside loan 1 cop.
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Year | Impact factor | Edition | Category | Classification | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Stritih, Ana | |
Diaci, Jurij | 11253 |
Rozman, Andrej, 1975- | 24368 |
Source: Personal bibliographies
and: SICRIS
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