OC – Uncharacteristic dry/semi-dry grasslands and tall herb communities:
Uncharacteristic dry and semi-dry grasslands and tall herb communities that can not be categorized to any semi-natural habitat type. The cause of their uncharacteristic nature and the origin of their site can be diverse. For example, regenerating grasslands of abandoned arable fields, vineyards and orchards; drier pastures and hay meadows that have become uncharacteristic or weedy because of former management, fertilization, overgrazing, incorrect mowing, etc; dry grasslands of dikes and road verges; regenerating sowed dry grasslands; certain kurgans; grassy channels that completely dried out long ago; Calamagrostis and terrestrial reed stands invading dry grasslands; disturbed dry grasslands around settlements; patches of pastures dominated by thorny weeds; low, species poor, Cynodon dominated grasslands; and the abandoned football grounds and golf courses belong to this habitat type. The actual area of the habitat is 157000 ha in Hungary. Most of the stands are oldfields, dried-out meadows, degraded pastures and/or grassland areas that have undergone amelioration. Although this habitat is widespread in the country, it becomes more infrequent on the western part of Dunántúl. The most of stands are in the Északi-középhegység (48000 ha), the majority of them are oldfields and degraded pastures. There are 34000 ha both on Tiszai- and Dunai-Alföld, it is missing from those regions that are anyway poor in vegetation. It is also common in the Dunántúli-középhegység (17700 ha), but is missing from some parts of the Dunántúli-dombság (13400 ha), which can be partly explained by incorrect mapping; since the regenerating oldfields were classified for example to E1 instead of OC. The habitat covers smaller areas on Kisalföld (4000 ha) and on Nyugat-Dunántúl (6100 ha). Due to interpretational problems the categorization of transitional stands to OB, OC, and degraded D34, E1, and F2 habitats is uncertain.
Molnár, Zs., M. Biró, J. Bölöni & F. Horváth (2008): Distribution of the (semi-)natural habitats in Hungary I.: Marshes and grasslands, Acta Botanica Hungarica 50 (Suppl): 59-105. >>> letöltés (5,4 MB, PDF)
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