20.500.12556/DiRROS-7616 Biodiversity of types of ectomycorrhizae in a norway spruce stands on Pokljuka Pestrost tipov ektomikorize v smrekovem sestoju na Pokljuki Types of ectomycorrhizae were studied in soil cores from a young regeneration center in an autochthonous Norway spruce stand on Pokljuka (Triglav National Park, 1200 m.a.s.l.). Soil cores of equal volume (274 ml, 0 - 18 cm deep) weretaken from 33 sampling plots. In the samples all the roots were counted and types of ectomycorrhizae briefly characterized. From these data diversity indices (species diversity (d) and Shannon- Weaver index of diversity (H)) were calculated. Interactions among mycorrhizae, light regime and survival of spruce seedlings were studied. Out of about 50,000 root tips approximately 1 %were non-mycorrhizal, 63 % were old unviable mycorrhizae and 36 % were identifiable ectomycorrhizal root tips, forming 27 different types of ectomycorrhizae. Sixteen types of ectomycorrhizae were briefly characterized. The Shannon diversity index for types of ectomycorrhizae was high (3.13) with respect to the above-ground diversity of vegetation (1.7). The direct site factor was shown to be negatively correlated to ~Piceirhiza cornuta. The diffuse site factor was negatively correlated to Cortinarius sp. (obtusus type) and positively correlated to Inocybe sp. The ground vegetation cover waspositively correlated to Piceirhiza gelatinosa and the total vegetation cover to Elaphomyces sp. V majhni vrzeli domnevno avtohtonega smrekovega sestoja na Pokljuki (Triglavski narodni park) smo proučevali tipe ektomikorize na smreki. Vzorce tal smo jemali na 33. zvezdasto razporejenih vzorčnih ploskvicah s sondo prostornine 274 ml iz globine 0-18 cm. Iz vsakega vzorca smo izločili vse koreninice smreke, jih prešteli, ter na kratko opisali prisotni tip ektomikorize. Izračunali smo Indeks bogastva vrst (d) in Shannonov indeks pestrosti (H). Zanimal nas je vpliv ekoloških dejavnikov (svetlobnih razmer, naravnega pomlajevanja, zastiranja vegetacije) na porazdelitev tipov ektomikorize. Od skupno 50.000 korenin smreke je bilo približno 1 % nemikoriznih, 63 % je bilo nedoločljivih, pretežno starih tipov ektomikorize ter 36 % določljivih ektomikoriznih korenin, ki so skupaj tvorile 27 tipov ektomikorize. Predstavljenih je 16 kratkih opisov za do sedaj neopisane tipe ektomikorize. Shannonov indeks pestrosti za tipe ektomikorize (3,13) je visok glede na pestrost vegetacije (1,7). Ugotovili smo negativno korelacijo direktnega sončnega sevanja s tipom ~Piceirhiza cornuta. Difuzno sončno sevanje je v negativni odvisnosti s tipom Cortinarius sp. (obtusus tip) in v pozitivni odvisnosti s tipom Inocybe sp.. Zastiranje pritalne vegetacije je v pozitivni odvisnosti s tipom Piceirhiza gelatinosa, skupno zastiranje vegetacije pa je v pozitivni odvisnosti s tipom Elaphomyces sp. ectomycorrhizae types of ectomycorrhizae Norway spruce natural regeneration Pokljuka ektomikoriza tipi ektomikorize navadna smreka naravno pomlajevanje Pokljuka true false true Angleški jezik Angleški jezik Znanstveno delo 2017-07-12 09:18:36 2017-07-12 09:18:36 2022-08-12 14:06:46 0000-00-00 00:00:00 2004 0 0 str. 71-85 Vol. 75 2004 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*114.7(497.12*02 Pokljuka)(045) 0351-3114 URN:NBN:SI:doc-5C7YQUJ4 1437094 6206978 RAZ_Vilhar_Ursa_i2004.pdf RAZ_Vilhar_Ursa_i2004.pdf 1 A9C643CCDA83E461E8479908C6ABA762 8269b685ac7caf3e4d4bcaddf924acec916f2550074f069ee5d82c71a1dd53bb 1d9cd560-17b5-11ed-b6b8-001a4af901a5 20.500.12556/dirros/8a127b86-70ea-4da6-ac35-a1caef6f41f3 https://dirros.openscience.si/Dokument.php?lang=slv&id=9482 Gozdarski inštitut Slovenije Acta Silvae et Ligni 0 0 0