DIGITALNA ARHIVA ŠUMARSKOG LISTA
prilagođeno pretraživanje po punom tekstu
| ŠUMARSKI LIST 5-6/2010 str. 67 <-- 67 --> PDF |
S. Redžić, S. Barudanović: THE PETTERNS OF DYVERSITY OF FORESTVEGETATION OF THE CRVANJ ...Šumarski list br. 5–6, CXXXIV (2010), 261-274 Abies albais not or it is very rarely present in beech forest here. However, the presence of Rhamnus fallax, Lonicera alpigena, Galium odoratum, Polystichum lobatum, Cardamine enneaphyllos, Polygonatum verticillatumand Lilium martagonspecies indicates development of certain beech-fir forests variant, or forests of beech and bu- Ass.:Seslerio autumnalis-Fagetum sylvaticae The termophylic community of beech and autumn bluegrass (Sesleria autumnalis) is developed within belt of mountain and high mountains beech forests, but on warmer habitats, dolomite geological foundation and rendzine as type of soil. Habitats of mentioned community are situated on south aspect and terrain with inclination of 35o. In floristic composition of community the next group of species has significant diagnostic and indicator value:Sesleria autumnalis, Ostrya carpinifolia, Cotinus coggigria, Chamaecytisus hirsutus, Epipactis latifolia, Solidago virgaaurea, Canvallaria mayalis andLathyrus venetus(Tab. 1). The community of autumn bleugrass with beech, within area with Illyrian climate is developed both in sub-Mediterranean belt (Horvat,1962; Trinaj s tić, 2008), and deeply in continental hinterland, what is more often orographically and pedologically caused (Fukarek,1979;Redžić,1990). Usualy, mentioned community is affiliated to littoral and south part of Central Dinaric mountains (Lakušić, 1987,Lakušić&al., 1984, 1987). Going to Ass.:Phyteumo spicatae-Fagetumsylvaticae ckthorn (Rhamno-FagetumFukarek 1969), which are more common for group of south DinaricAlps (Fukarek, 1979). One of possible reason forAbies albaabsence could be intensive cutting in the past period, when fir is entirely but artificially removed from investigated habitats.According to literature sources, fir was distinctively more presented in this area (Murbeck,1891). Blečić & Lakušić 1970 corr. hoc loco group of continental and northwestern Dinaric Alps, the community constitute the continuum to theSeslerio autumnalis-Fagetum(Horvat 1938) Horvat & al. 1974, which is developed in a few variants. One of known community variants isSeslerio autumnalis- Fagetum(Horvat 1950) M. Wraber (1958) 1960, developed from the sub-Mediterranean to the subalpine area of Slovenia, and recently diffrentiated in several syntaxonomical categories (Dakskobler,1991). The thermophilic community of beech with autumn bluegrass in comparision with typical association Seslerio- Fagetum sylvaticae, recorded in south and southeastern part of central DinaricAlps (Blečić,1958; Blečić&Lakušić,1970;Lakušić&Redžić, 1989) is rather poor in endemic species. SpeciesChamaecytisus tommasinii, Campanula lingulata, Dianthus sylvestris, Laserpitium marginatum, Trifolium pignattii, Crocus tommasinianus, Dioscorea balcanica, Daphne oleoidesand other endemic species are absent. By this finding, researched community is more similar toSeslerio-Fagetumin floristic sense. Barudanović 2003 (=Aceri-Fagetum subalpinumFukarek & Stefanović 1958 emend Fukarek 1969) The community of maple with subalpine beech is usualy recorded on mountains of northwestern and continental group of Dinaric Alps (Horvat,1962; Fukarek,1979;Redžić&al., 1984;Barudanović, 2003;Barudanović&Redžić,2007). In the souheast group of DinaricAlps it is altered with communityAceri visianii-Fagetum sylvaticaeFukarek 1969 (Blečić 1958 – Syn.:Fagetum subalpinum aceretosum visianiiBlečić 1958). In the past period community of subalpine beech on Crvanj Mt. suffered extremely high level of antopogenic influence with purpose of subalpine pastures area enlargement. The floristic analysis of researched sites situated on limestone foundation and calcomelanosol type of soil, at the altitude between 1500 an 1700 m, indicates the presence of this association, but in extremely poor form. In the tree stratum, high cca 6 m, beech is predominant, but sycamore maple is also present. In schrub stratum Lonicera alpigenaand Rhamnus fallax are only recorded species. Characteristic and differential species of Aceri-Fagetum association here are: Cystopteris montana, Luzula sylvatica, Adenostyles alliariae, Actea spicata, Geranium macrorhizumandCardamine enneaphyllos. Important diagnostic species of the order and class are: Viola reichenbachiana, Aremonia agrimonioides, Anemone nemorosa, Crocus vernus, Geum urbanumand other (Tab. 1). The belt of mountain pine on researched profile of Crvanj Mt. is completely absent.Terminal forest border is built up of subalpine beech community. Mountain pine community was developed on this profile (Murbeck,1891), but during the past is completely destroyed to. |