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001-es BibID:	BIBFORM016180
Első szerző:	Török Péter (biológus-ökológus)
Cím:	Restoring grassland biodiversity : Sowing low-diversity seed mixtures can lead to rapid favourable changes / Péter Török, Balázs Deák, Enikő Vida, Orsolya Valkó, Szabolcs Lengyel, Béla Tóthmérész
Dátum:	2010
Megjegyzések:	We studied the effect of sowing low-diversity seed mixtures (containing 2-3 competitive grass species)on the regeneration of vegetation on croplands previously used as alfalfa fields. In four permanent plots in10 restored fields (four with alkali and six with loess seed mixture) the cover of flowering plants wasrecorded and phytomass was measured between 2006 and 2008. We asked three questions: (i) How fastwill weedy, short-lived species decrease in abundance during secondary succession enhanced by sowinglow-diversity seed mixtures? (ii) Can weeds be suppressed by sowing competitive native grasses, followedup by management by mowing? (iii) Can succession towards the target native grasslands be acceleratedby sowing only low-diversity seed mixtures compared to set-aside old field succession? Ourresults showed that in just two years a vegetation dominated by perennial grasses has developed, whichsuccessfully prevented the establishment of weed species. These results suggested that sowing seeds oftwo or three competitive grass species is an effective tool to eliminate weed domination and to leadtowards the restoration of species poor grasslands with grass domination such as alkali grasslands. However,the developed dense perennial grass cover and the accumulated litter may hamper the immigrationof specialist species characteristic to reference grasslands. Therefore, the restoration of species-rich grasslandsrequires the facilitation of the immigration of grassland specialist species by further management(grazing, mowing and/or hay-transport).
Tárgyszavak:	Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban Habitat restoration Old field succession Phytomass production Short-grass steppe Species richness Tall-grass prairie
Megjelenés:	Biological Conservation. - 143 : 3 (2010), p. 806-812. -
További szerzők:	Deák Balázs (1978-) (biológus) Vida Enikő (1984-) (biológus) Valkó Orsolya (1985-) (biológus) Lengyel Szabolcs (1971-) (biológus) Tóthmérész Béla (1960-) (ökológus)
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat DOI
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