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001-es BibID:	BIBFORM088267
Első szerző:	Sümegi Pál (geológus, régész)
Cím:	The late quaternary paleoecology and environmental history of Hortobágy, a unique mosaic alkaline steppe from the heart of the Carpathian Basin / Pál Sümegi, Gábor Szilágyi, Sándor Gulyás, Gusztáv Jakab, Attila Molnár
Dátum:	2013
Megjegyzések:	The first national park in Hungary was established in 1973 in the area of Hortobágy with the aim of protecting dry and humid alkaline steppe areas and concomitant fauna. In 1999 the Hortobágy National Park was included in the world heritage list of the UNESCO. The outstanding importance of the park comes from dominantly non-arboreal, steppe vegetation harboring a unique avifauna and highly variable alkaline and chernozem soils displaying a complex mosaic-like spatial patterning. In addition, pastoralism in Hortobágy dates back several hundred or even thousands of years. Several hypotheses were postulated mainly by botanists and pedologists, which blamed human activities related to river regulations starting during the second half of the 19th century as being responsible for alkalinization and the emergence of the modern ecosystem. Conversely, paleoecological and paleobiological studies starting roughly 30 years ago unambiguously pointed to a natural origin of the alkaline steppe dating back to the end of the last ice age. Human activities with the arrival of the first farmers and agropastoralism hardly affected the natural evolution of the area for millennia. Drainage of marshlands and inundated areas initiating during the 19th century and followed by the introduction of rapidly intensifying farming, however, had significant impact on the landscape. The present chapter would like to highlight the past natural evolution of this unique alkaline steppe ecosystem with special attention to impacts related to former and present-day human activities, including conservation measures
ISBN:	978-1-62808-298-2
Tárgyszavak:	Természettudományok Földtudományok könyvfejezet könyvrészlet Quaternary paleoecology Pannonian alkaline steppe environmental mosaics Hortobágy National Park Central Europe Hungary
Megjelenés:	Steppe Ecosystems: Biological Diversity, Management and Restoration / ed. Morales Prieto, J. Traba Diaz. - p. 165-193. -
További szerzők:	Szilágyi Gábor Gulyás Sándor Jakab Gusztáv Molnár Attila (1964-) (biológus)
Internet cím:	Szerző által megadott URL Intézményi repozitóriumban (DEA) tárolt változat
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