Ábrahám Levente (szerk.): Válogatott tanulmányok IV. - Natura Somogyiensis 15. / Miscellanea 4. (Kaposvár, 2009)
Ortmanné Ajkai Andrienne - Horváth Ferenc: Külső-Somogytól a Mecsekig: DNX Magyarország három dombvidékének vegetációja
24 Natura Somogyiensis ■ K5 ЭК2 SL2a 0L2x Baranyai-hegyhát Völgység Tolnai-hegyhát Fig. 8: Area of most important forest types ha in the study area, almost half of them in Baranyai-hegyhát (5000 ha), neighbouring well-forested Mecsek hills. Percentage of forests of total region area of the region is 22.5% in Baranyai-hegyhát, far less, 7.5% (3000 ha) and 6% (3100 ha) in Völgység and Tolnai-hegyhát, accordingly. Native tree plantations (RB, RC) covers less than 1% of total region area everywhere, but in many deforested parts in Völgység and Tolnaihegyhát only these are the only woody ("forest-like" in landscape view) communities. Natural and semi-natural woody habitats are diverse in habitat level, 15 of 25 MÉTA types occur here (60%). Percentage areas of forest habitats demonstrate that our study area intersects three vegetational zones. Most of forests are hornbeam-oak forests (K2, 62% of total forest area), turkey oak - sessile oak forests (L2a, 21%) and closed and mixed steppe oak woodlands (L2x, 6%). Extrazonal beech forests cover 9%. Other forest types occurs only accidentally (2%). Areal distribution of forests shows (Fig. 3.) that Baranyai-hegyhát is well forested (22.5%), but forests are basically missing from the other two regions except for two larger forest blocks: isolated remnants of woodlands on hills SE from Kapos valley. On of them is on the border between Völgység and Tolnai-hegyhát, laying between settlements Döbrököz, Dúzs, Mucsi and Mekényes (predominantly mesophilous forests (group K), similar to that of Mecsek hills); other one is on the northern part of Tolnaihegyhát, with more dry forest (group L), between settlements Belecska, Simontornya, Kisszékely, Nagyszékely and Miszla. Wet and mesophilous woody habitats of valley bottoms are: alder and ash swamp woodlands (J2), riverine ash-alder woodlands (J5), riverine oak-ash-elm woodlands (J6), lowland oak-hornbeam woodlands (Kla), scattered native trees (mostly williows) and narrow tree lines (RA). They are present everywhere but with small area: total of250 ha, 1.3% of natural and semi-natural habitats. Their significance is that in many deforested areas only they represent natural and semi-natural woody habitats. Alder groves (J5), original vegetation besides streams, quickly disappear as we leave forested Baranyaihegyhát in NE direction; in the two deforested regions they are replaced by groups and borderlines (RA) of willows (mostly Salix alba). Mesophilous forests (group K) are present in every region, but their area and diversity decreases with increasing continentality towards NE. In Baranyai-hegyhát four of five mesophilous forest habitats are present: lowland oak-hornbeam woodlands (Kla),
