Identification and mapping of Natura 2000 forest habitat types in Croatia (II) – 91F0, riparian mixed forests of Quercus robur, Ulmus laevis, Ulmus minor and Fraxinus angustifolia; 91L0, Oak-hornbeam forests of the illyrian area

Zagreb

Kroatischer Forstverein

2015

461-467

Artikel aus einer Zeitschrift

200206831

Sumarski List 2019, 143(9-10) ; 9-10 (2019) , 461-467

The article describes the 91F0 and 91L0 Natura 2000 habitat types in Croatia. It containes 11 types according to the National Habitat Classification of Croatia (NHC). The 91E0 habitat type extends to northern Croatia, in the river valleys of Sava and Drava, to approximately 100,000 ha. It consists of forests dominated by Quercus robur in admixture with Fraxinus angustifolia, Alnus glutinosa and Ulmus minor. Carpinus betulus and mesophilic species are absent. The habitat is wet, with a high level of groundwater. Floods are periodic and do not last long.
According to the NHC, type 91F0 includes phytocenoses:
E.2.2.1. Genisto elatae-Quercetum roboris caricetosum remotae Horvat 1938
E.2.2.2. Genisto elatae-Quercetum roboris caricetosum brizoides Horvat 1938
E.2.2.3. Genisto elatae-Quercetum roboris aceretosum tatarici Rauš 1975
E.2.2.4. Genisto elatae-Quercetum roboris carpinetosum betuli Glavač 1961
Habitat type 91L0 comprises of two groups of syntaxons: pedunculate oak and hornbeam communities and sessile oak and and hornbeam communities. Pedunculate oak and hornbeam forests grow on the highest parts of the lowlands of Croatia. The ground is fresh, the groundwater level is lower than in the 91F0 type, and in floral composition there is a significant share of Central European mesophilic species. Sessile oak and hornbeam communities grow in hilly belt of continental Croatia, predominantly in brown forest soils of neutrophil character. The main tree species are Quercus petraea, Carpinus betulus, Acer campestre, Prunus avium and Fagus sylvatica. Within the shrub and herb layer the Illyrian floral element is significant, with species Lonicera caprifolium, Staphylea pinnata, Epimedium alpinum, Erythronium dens-canis, Helleborus atrorubens, Vicia oroboides and others.
According to the NHC, type 91L0 includes phytocenoses: Pedunculate oak and hornbeam communities (Carpinion betuli)
E.3.1.1. Carpino betuli-Quercetum roboris typicum Rauš 1975
E.3.1.2. Carpino betuli-Quercetum roboris fagetosum Rauš 1975
E.3.1.3. Carpino betuli-Quercetum roboris quercetosum cerris Rauš 1971
E.3.1.4. Carpino betuli-Quercetum roboris tilietosum tomentosae Rauš 1971
Sessile oak and and hornbeam communities (Erythronio-Carpinion)
E.3.1.5. Epimedio-Carpinetum betuli /Ht. 1938/ Borhidi 1963)
E.3.1.6. Festuco drymeiae-Carpinetum Vukelić ex Marinček 1994)
E.3.1.7. Anemone nemorosae-Carpinetum Trinajstić 1964
This article contains a description, area of distribution in Croatia, and diagnostic indicators for each habitat type. For each type related types are listed, the corresponding code according to EUNIS-classification, and literature in which is described in more detail. The article is intended for forestry experts, for identification and mapping of forest habitat types.
KEY WORDS: 91F0 and 91L0 Natura 2000 habitat types; oak forests; National habitat classification; Croatia