DIGITALNA ARHIVA ŠUMARSKOG LISTA
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J. Vukelić, A.Alegro, V. Šegota:ALTIMONTANSKO - SUBALPSKASMREKOVAŠUMAS OBRUBLJENIM ...Šumarski list br. 5–6, CXXXIV (2010), 211-228 lumn 8Piceetum(illyricum)subalpinumHorvat 1950listeretosumethomogynetosumFukarek 1969/ were taken from Zupančič’s analysis (1990). Column 9 provides seven relevés from Vlašić (Lakušić et al. 1982). The floral composition of spruce forests in Velebit, in relation to other Dinaric spruce communities, is characterized by lesser participation and cover of Alpine-boreal species (Lonicera nigra,Lycopodium annotinum,Huperzia selago, Listera cordata, Calamagrostis arundinacea, Rhytiadelphus loreus) and higher participation and cover of the species from the Fagetalia order and lower units. This is attributed to several reasons, such as the biogeographic position of Velebit and the resulting ecological factors, the lithological-pedological properties of the substrate and the influence of a strong beech belt which surrounds smaller complexes (and fragments) of coniferous forests. West Croatian and particularly Slovenian spruce forests are under a strong Alpine influence, while Bosnian-Herzegovinian spruce forests have retreated deep into the continental part. It is therefore logical that the association Laserpitio krapfii-Piceetummanifests a more “fagetal” character and that its composition contains species of beech forests that are either absent from other spruce associations or are much less represented. Compared to the subalpine spruce forest “Calamagrostio-Piceetum” described earlier, the new association occurs at lower positions and covers more humid, colder, shadier, much less stony and soil-rich sites. Locally, it descends into sinkholes and lower slopes to the altitude of 1,100 m. Fir is still considerably present, but the other mentioned association is above the upper fir boundary. Typologically, the association Laserpitio krapfii-Piceetumcan provisionally be divided into three types of stands. Stands with a standard composition are found on upper and centrally positioned, shady, moderately fresh slopes with an average floral composition. They frequently contain equal amounts of species from the order Fagetalia. The second type occurs on drier, more illuminated, more exposed localities that also include meadow edges (most frequently Nardetum strictae), while the third type of stands is developed in narrow and restricted sinkholes and on the slopes leading to them. Species of the order Adenostyletaliadominate on colluvial soils with more moisture and longer presence of snow. Cicerbita alpina,Ranunculus platanifolius,Stellaria nemorum,Poa hybridaand some others are particularly prominent. In some earlier research into spruce forests of northern Velebit (Vukelić and Tomljanović 1990), this stand type was identified as an independent associationAdenostylo alliariae-PiceetumHartman 1994. |