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001-es BibID:BIBFORM101927
035-os BibID:(Wos)000186178600008 (Scopus)0141940760
Első szerző:Matus Gábor (botanikus)
Cím:Restoration of the Cirsio dissecti-Molinietum in The Netherlands: Can we rely on soil seed banks? / Matus G., Verhagen R., Bekker R.M., Grootjans A.P.
Dátum:2003
ISSN:1402-2001 1654-109X
Megjegyzések:Vegetation and soil seed banks of a threatened Atlantic fen meadow community were studied using recent phytosociological records and seedling emergence from soil samples. Similarly managed but differently degraded stands that suffered different levels of species impoverishment were compared. The actual vegetation was related to a set of phytosociological references representing the subassociations of the community. DCA positions of reference releves from the different subassociations were overlapping, suggesting that in all references many common species occur. Recent records were positioned in-between the seed bank samples and the references. The soil seed banks of all stands were dominated by ordinary species. Most character species had at most sparse seed banks and no seedlings of locally extinct character species, mentioned in historic floristic records, were detected. In contrast species of pioneer and small-sedge communities as well as those of heathlands were abundant in the seed banks. Based on the vertical distribution of seeds in the soil layers most fen meadow species were classified into transient or short-term persistent seed bank types. We concluded that complete restoration of the Cirsio dissecti-Molinietum without reintroduction is only likely in stands that were degraded only a few years ago. On the other hand, the presence of viable seeds of Nanocyperion and Parvocaricetea species is promising for the restoration of these communities even after decades. Recreation of pioneer habitats by sod cutting will preserve these species.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
seedling emergence
fen meadow
historic vegetation data
fragmentation
Junco-Molinion
red list species
Megjelenés:Applied Vegetation Science. - 6 : 1 (2003), p. 73-84. -
További szerzők:Verhagen Rob Bekker Renee M. Grootjans Albert Pieter
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001-es BibID:BIBFORM101914
035-os BibID:(WOS)000220133300009 (Scopus)1342269468
Első szerző:Matus Gábor (botanikus)
Cím:Restoration prospects of abandoned species-rich sandy grassland in Hungary / Matus, G., Tóthmérész, B., Papp, M.
Dátum:2003
ISSN:1402-2001 1654-109X
Megjegyzések:Secondary succession and seed bank formation was studied in a formerly grazed, abandoned, eastern Hungarian sandy steppe-meadow (Pulsatillo-Festucetum). The vegetation was sampled at different elevations of a sand dune which became partly invaded by the tree Robinia pseudo-acacia ca. 10 yr ago. Pre-abandonment vegetation records were used as historic references. Though composition of the non-invaded grassland only changed moderately, dominance of tall grasses (Elymus hispidus, Poa angustifolia) increased significantly at the cost of annuals and low stature perennials. In the stand invaded by Robinia most grassland species were lost and replaced by nitrophytes. Vertical position influenced species abundance, but affected the composition only moderately. Fine-scale zonation of the vegetation also changed with time. Species richness of the above-ground vegetation and the seed density of soil samples at the lower elevation were slightly greater than at the higher sites. Seed banks of sensitive grassland specialists (e.g. Pulsatilla pratensis subsp. hungarica) disappeared during grass encroachment. Following extinction from above-ground vegetation, restoration must rely on dispersal from adjacent areas. In contrast, several annuals and perennials, which survived this degradation stage in the above-ground vegetation, possessed seed banks. Many of these species became extinct from the vegetation during the Robinia invasion but left viable persistent seeds. This fact is promising for restoration of the Potentillo-Festucetum sandy pasture. Competitive weedy species and sprouting Robinia can, however, limit seedling establishment.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
seedling emergence
secondary succession
Robinia pseudo-acacia
Pulsatillo-Festucetum
historic releve
invasion
cattle grazing
elevation gradient
Megjelenés:Applied Vegetation Science. - 6 : 2 (2003), p. 169-178. -
További szerzők:Tóthmérész Béla (1960-) (ökológus) Papp Mária (1952-) (biológus, botanikus)
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