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COST Action E 52 - vTI - Bund.de

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thermophilous species. It is not a rare case that in shadowed places (e. g. river valleys) beech grows<br />

at lower altitu<strong>de</strong>s than oak (as a sort of inversion), even it moves from the northern slopes to the<br />

opposite south-oriented slopes.<br />

Survival and growth of beech at low altitu<strong>de</strong>s in Bosnia greatly <strong>de</strong>pend on the orientation of<br />

a particular river valley. If the river valley is exten<strong>de</strong>d from the north to the south (as it is the case<br />

of the biggest rivers Una, Vrbas, Bosna and Drina), then the beech line is significantly distant from<br />

the valley. If the river valley is oriented from the east to the west, beech <strong>de</strong>scends from the northern<br />

slopes to the valley itself, and even is able to cross it. Hence, the extent of the lower beech line <strong>de</strong>pends<br />

on ecological conditions of the stand which, un<strong>de</strong>r these conditions, are significantly <strong>de</strong>termined by<br />

the terrain form and shape.<br />

Beech reaches its upper distribution limit only in some of the western and southern Bosnian and<br />

Herzegovinian mountains with an altitu<strong>de</strong> above 1,900 m. Summits of these mountains are overgrown<br />

by the stands of mountain pine, where beech occupies favourable locations (north-oriented slopes)<br />

and individually can ascend up to 1,800 m. In addition to the mountain Plješevice located on<br />

the bor<strong>de</strong>r with Croatia, this is the case of the following Bosnian mountains: Klekovača, Dinara<br />

(Troglav), Kamešnica, Šator, Vitoroga, Golija, Kujača, Cincar, Malovan, Raduša, Vran, Vranica,<br />

Bjelašnica, Treskavica, Jahorina, Zelengora, Maglić (Vučevo) and Ljubišnja, in Herzegovina parts<br />

of Bjelašnica (Krvavac), Visočica, followed by mountains Prenj, Čvrsnica and Velež. On the other<br />

hills and mountains, beech does not reach its upper limit, so either pure submontane beechwoods or<br />

mixed fir-spruce-beech forests cover the highest locations.<br />

The attached map of the beech range shows that Bosnia and Herzegovina is crossed by two important<br />

vegetation and geographical range lines, forming internal limits of beech distribution within its<br />

own range. One is the bor<strong>de</strong>r of steppe (in a wi<strong>de</strong>r sense) or thermophilous and hydrophilous zone<br />

vegetation of the oak forests of Pannonia; the other is the bor<strong>de</strong>r of evergreen and thermophilous<br />

Euro-Mediterranean vegetation of the Adriatic area.<br />

characTerIsTIcs aNd ForesT maNaGemeNT<br />

Beech is one of the most important forest trees in Bosnia and Herzegovina, viewed both from the<br />

economic and ecological aspects. The forest cover of Bosnia and Herzegovina represents 2, 10,000<br />

ha of forests and forest land, covering approximately 53% of its territory (Stojanović et al. 1986).<br />

High forests represent 1,266,000 ha, low forests, stumps and coppices 918,000 ha. Moreover, there<br />

are bare lands and gla<strong>de</strong>s of 390,000 ha suitable for afforestation, and 130,000 ha of arid soils. Of the<br />

overall forest area, pure beechwoods represent 660,000 ha, of which there are 345,000 ha of high and<br />

318,000 ha of low forests (Matić et al. 19 1). In addition, beech is found in mixed forests composed<br />

of beech and fir or beech, fir and spruce mixture at an area of 565,000 ha. In that way, the total area of<br />

forests containing beech is 1,225,000 ha. Out of that, 93% are natural or semi-natural forests, which<br />

is significant in comparison with the European average where the proportion of natural or/and seminatural<br />

forests is rather low. Based on this, Matić, Pintarić, Drinić (1969) elaborated gui<strong>de</strong>lines<br />

for management, however, they were subjected to many changes.<br />

Beech forests in Bosnia and Herzegovina have different characteristics, but the specific feature of beech<br />

forests in central Bosnia is that an important area of pure beech forests are of secondary origin (Beus<br />

1984). They were created from mixed beech and fir stands or beech-fir-spruce mixture through human<br />

54

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