26.06.2013 Views

Kanitzia 18. - NYME Természettudományi Kar - Nyugat ...

Kanitzia 18. - NYME Természettudományi Kar - Nyugat ...

Kanitzia 18. - NYME Természettudományi Kar - Nyugat ...

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

at the NE part of the village, situated geographically at the south-eastern marginal/border<br />

area of the Transylvanian Lowland (cca 20 km NW of the town Tg. Mureş). In this area<br />

only fragmentary forest steppe habitats are present, distributed in particular site conditions<br />

of the nemoral zone, bordering the mixed oak and the oak-hornbeam woodlands. The hill<br />

’Şico’ with a narrower pinnacle surface (summit/peak) and steep slopes with southern and<br />

south-western exposition, completed by clay, marle and sandy deposites, is actually being<br />

covered mostly by shrub vegetation, small vineyard plots, old hayfields and abandoned<br />

grasslands. The peculiar stands of K. ceratoides are concentrated around the pinnacle region,<br />

under the top with sunny and dry places, and the immediate neighboured slopes with<br />

low inclination values, covered by Stipa capillata and partially by Bothriochloa ischaemum<br />

dry grasslands. Very often small populations of K. ceratoides can be found just inside of<br />

the shrub vegetation (ex. Pruno spinosae-Crataegetum) also, which indicate that the population<br />

probabily have been widespred previously. The most frequently woody species which<br />

form natural stands here are the followings: Quercus petraea, Q. robur, Crapinus betulus,<br />

Acer campestre, A. tararicum, Fraxinus excelsior, Ulmus minor, Staphylea pinnata, Corylus<br />

avellana, Ligustrum vulgare, Berberis vulgaris, Clematis vitalba, Crataegus monogyna,<br />

Prunus spinosa, Rosa canina, Pirus pyraster, Viburnum lantana etc. Under the hill Şico it<br />

is an old, abandoned clay-pit place, covered mostly with a high density of Lycium barbarum,<br />

where the plants of K. ceratoides have been disappeared.<br />

Coenological relations<br />

Krascheninnikovia ceratoides with a wide holartic distribution area, is also an important<br />

component of various cold steppe, semi-desert, dry grassland vegetation and open<br />

vegetation unites. The species history, the chorological succes, all former and recent data<br />

are evidencing that this taxon is an example of large adaptability to various coeno-ecological<br />

conditions. In Central Asia coenotic stands are the main components of the continental<br />

cold steppe plant community described as Eurotio ceratoidis-Zygophylletum xanthoxylii<br />

by Hilbig (1987) 1990 (HILBIG 2000, WESCHE et al. 2005) from the Caraganion leucophloeae<br />

alliance; from the southwestern Mongolian Khod Province the plant was indicated<br />

as common participant in the shrub desert steppe vegetation (Caragana<br />

leucophloea-Krascheninnikovia ceratoides type) (ZEMMRICH 2008, UNIYAL et al. 2005),<br />

and relatively rare in the grass desert steppe vegetation (Stipa glareosa-Agropyron cristatum-Stipa<br />

krylovii type) (ZeMMRICH 2008). In the Pamir Mountains the species is widespread<br />

in the Krascheninnikovia ceratoides-Artemisia skorniakowii mountain-desert steppe<br />

vegetation type (WALTER 1966). In Central Anatolia it have been noted as characteristic<br />

species of the plant community of Krascheninnikovio ceratoidis-Artemisietum santonici,<br />

distributed on eroded gypsaceous soils of the steppe vegetation (AYDOGDU et al. 1994,<br />

AKMAN et al. 1994).<br />

Inside of the European disjunct area, in Lower Austria K. ceratoides is a participant<br />

of the fragmentary steppic grasslands and, it was considered as a „loes relict” plant<br />

(WENDELBERGER 1954, NIKLEFELD 1964), belonging to the Astragalo excapi-Crambetum<br />

tatarici plant community (MUCINA et al. 1993). Nearly in the same conditions in Central<br />

67

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!