Features of secondary birch young stands in low mountain Pokuttya (Ukrainian Carpathian mts.)
AbstractForest landscapes of the region during the last 3–5 centuries undergone the profound anthropogenic transformation. Secondary young stands occupy 25% of the total forest area. The problem of derivatives is particularly relevant for the modern forest typology in the Carpathian region. It requires the reflection in its dynamic trends shaping the stands, especially mixed young stands. The aim of our study consisted in getting the knowledge of the structural features of the secondary phytocoenosis of birch young stands in this area.The object of the study was age class I saplings growing in the mountainous part of Pokuttya, particularly in the basin of the Lutshka River. The conceptual basis of our study is the modern dynamic vision that every forest type is a consecutive series of forest plant communities within each type of homogeneous growing conditions. We apply methods of ecological-floristic research of the Brown-Blanke school in the interpretation of the Polish school phytosociology. However we also take into account both syntaxonomy generalizations of the Ukrainian scientists. The actual material comprises the original geobotanical studies with fixation of the vast majority of species in plant communities. Mainly the species having diagnostic value to separate syntaxons were taken into account in the analytical processing. Young forest stands (with the height of 8–12 m and crown cover of 70%) together form the trees Betula pendula and B. pubescens. Fairly numerous admixture is formed by trees Alnus incana; besides, there are Fagus sylvatica, Populus tremula, Quercus robur, Padus avium. For dominants, they can be called “grey-alder birch blackberry sedge bracken fern” – Betula pendula+Alnus incana–Rubus caesius–Carex brizoides+Pteridium aquilinum. It is rich in floristic composition of the plant communities. They contain at least 12 species of trees, 3 species of shrubs, 4 species of bushes and 89 species of herbs. Diagnostic species evidence the belonging of such groups to the class of Middle European broad-leaved forest Querco-Fagetea. However, there is a reason to believe that they are close to the class of sour oligotrophic and mesotrophic Atlantic deciduous forests Quercetea robori-petraeae. 12 diagnostic species confirm belonging of these groups to the order Fagetalia sylvaticae represented by the European mesophytic deciduous forests. At the level of unions of plant communities no clear association was found. Most of the diagnostic species in phytocenoses under study indicate proximity of the floristic composition of the plants to association Potentillo albae-Quercetum which represents light subcontinental oak forest.
Abduloyeva, O.S., Solomakha, V.A., 2011. Fitotsenolohiya [Phytocenology]. Fitosotsiotsentr, Kiev (in Ukrainian).
Alekhin, V.V., 1951. Rastitelnost SSSR v osnovnykh zonakh [Vegetation of the USSR in the primary terrestrial ecosystems]. Sovetskaya Nauka, Moscow (in Russian).
Aleksandrova, V.D., 1964. Izucheniye smen rastitelnogo pokrova [The study of changes of vegetation]. Polevaya geobotanika [Practicality geobotany]. Vol. 3. (ed. Lavrenko, E.M., Korchagin, A.A.). Nauka, Leningrad, 300–450 (in Russian).
Barbati, A., Corona, P., Marchetti, M., 2011. New european forest types. Complementary documentation. Annex to enquiry. State of forests and sustainable forest management in Europe 2011. United Nations, Geneva.
Bryophytes: Mosses, liverworts & hornworts. Southern Illinois University Carbondale. Retrieved from URL: www.bryophytes.plant.siu.edu/index.html
Bulakhov, V.L., Emel'janov, I.G., Pakhomov, O.Y., 2003. Bioraznoobrazie kak funkcional'naja osnova jekosistem [Biodiversity as functional basis of ecosystems]. Vìsn. Dnìpropetr. Unìv. Ser. Bìol. Ekol. 11(1), 3–8.
Directory names of plants of Ukraine. Retrieved from URL: www.ekontsh.civicua.org/system.php
Ellenberg, H., 1988. Vegetation ecology of Central Europe. 4th ed. Cambridge University Press, Cambridge.
European forest types, 2006. Categories and types for sustainable forest management reporting and policy. EEA Technical report No 9.
Holubets', M. A., 2003. Suchasni problemy lisoznavstva, lisivnytstva ta lisovoho hospodarstva [Modern problems of forestry sciency and forest management]. Lisivnycha Akademiya Nauk Ukrayiny: Naukovi Pratsi 2, 20–26 (in Ukrainian).
Holubets', M., 2003. Heobotanichne rayonuvannya Ukrayins'kykh Karpat – osnova ratsional'noho pryrodokorystuvannya [Geobotanical zoning Ukrainian Carpathians – the basis of environmental management]. Pratsi Naukovoho tovarystva im. Shevchenka. Ekolohichnyy zbirnyk: Ekolohichni problemy Karpats'koho rehionu [Proceedings of the Shevchenko Scientific Society. Ecological Collection: Ecological Problems of Carpathian Region]. Shevchenko Scientific Society, Lviv, 12. 283–292 (in Ukrainian).
Holubets', M.A., 2007. Retrospektyva i perspektyva lisovoyi typolohiyi [Retrospective and perspective of forest typology]. Polli, L'viv (in Ukrainian).
Korotkyy dovidnyk lisovoho fondu Ukrayiny za materialamy obliku lisiv stanom na 1 sichnya 2003 roku, 2003 [Quick reference of forest inventory of Ukraine on the materials accounting as of January 1, 2003]. Irpin' (in Ukrainian).
Lavrenko, E.M. Korchagin, A.A. (ed.), 1964. Polevaya geobotanika [Practicality Geobotany], Nauka, Leningrad, 3 (in Russian).
Matuszkiewicz, J.M., 2001. Przewodnik do oznaczania zbiorowisk roślinnych Polski. Wydanie istotnie zmienione w stosunku do wydania z 1981. [Guide for the determination Polish plant communities. Edition significant change compared to the 1981 edition], PWN, Warszawa (in Polish).
Milevskaya, S.Y., 2013. Zminy struktury lisiv hirs'koyi chastyny baseynu richky Lyuchky uprodovzh 1967–2010 rokiv [Changes in the forests structure of the mountain part of Lyuchka river basin during 1967–2010 years]. Naukovyy visnyk. Natsional'nyy Lisotekhnichnyy Universytet Ukrayiny. 23(18), 22–27 (in Ukrainian).
Mirkin, B.M., Rosenberg, G.S., 1978. Phytocenology: Principles and methods. Nauka, Moscow (in Russian).
Pohrebnyak, P.S., 1955. Osnovy lesnoy tipologii [Fundamentals of forest typology]. Izdatelsvo AN USSR, Kiev (in Russian).
Prokudyn, Y.N. (ed.), 1987. Opredelitel vysshikh rasteny Ukrainy [Guide of higher plants of Ukraine]. Naukova Dumka, Kiev (in Russian).
Solomakha, V.A., 2008. Syntaksonomiya roslynnosti Ukrayiny. Tretye nablyzhennya [Syntaxonomy of vegetation of Ukraine. The third approach]. Fіtosotsіotsentr, Kyiv (in Ukrainian).
Theodoropoulos, K., Eleftheriadou, E., Athanasiadis, N., Tsiripidis, I., 2003. Phytosociological research of the pure Betula pendula forests in Greece: Rhodope mountain range (NE Greece). Annali di Botanica (Nuova Serie) 111, 75–90.
Tømmervik, H., Johansen, B., Tombre, I., Thannheiser, D., Høgda, K.A., Gaare, E., Wielgolaski, F.E., 2004. Vegetation changes in the Nordic Mountain Birch Forest: the influence of grazing and climate change. Arct. Antarct. Alp. Res. 36(3), 323–332.
Valter, G., 1982. Obshchaya geobotanika [General Geobotany]. Mir, Moscow (in Russian).