Marisia - Maros Megyei Múzeum Évkönyve 29-30/2. (2010)

Botany

The vegetation of shrubs in Moresti area (Mures County)

Pruno spinosae-Crataegetum Soó (1927) 1931

It is the most common shrub association in the investigated area. It is encountered mainly in agricultural territories of planar level to the hill level. In the studied area, it is found at altitudes between 400-430 m, on slopes with western and south-west exposure. In addition to shrub species, many transgressive species of Querco-Fagetea and Festuco-Brometea classes (Table 2) were found in the studied clumps. Due to the diversity of flora components, the association is developing under large amplitude of stationary conditions. Being under intense anthropogenic influences, the association is often destabilized, or even destroyed, but has a great capacity for regeneration.

fhe soil and climate condition, in which the association develops, promotes the development of mesophilous (26.09%) and xeromesophilous (52.18%) species. Temperature promote micro-mesothermal (39.42%) and soil pH promote low-acid neutrophilous (42.03%) and euryionic species 27.54% (Fig. 5).

The inclusion of the studied territory in the temperate, non-arid climate region is confirmed by the presence of a large number of hemicryptophytes (71.01%), along with a significant number of terophytes (8.7%). Phanerophytes are present in a percentage of 14.49% (Fig. 6).

Among the floristic elements, the most numerous are Eurasian (23.19%), followed by European (14.5%). Mediterranean species (10.15%), Paleotemperate and Eurosiberian species (13.05%) are found with remarkable frequencies (Fig. 7).

As a result of the soft climate and the preservative character of this association the diploid species number (55.89%) is more increased than the polyploides one (44.12%), (Fig. 8).

NATURA 2000: 40A0*

HdR: 3122

Table 2: Pruno spinosae-Crataegetum Soó (1927) 193

Relevee______________________________________1_______2 3 4 5 6 7

Altitude (m s.m.)___________________________400 420 450 400 450 450 450

Aspect_____________________________________- - SV ~SV~ V V SV~

Inclination (°)_______________________________- 10 25 20 10 25__________

Area (m2)__________________________________100 100 100 100 100 100 100__________

Vegetation coverage (%)___________________ 80 70 65 60 50 70 70

_____________________________________________________________________________________________________К

Prunion spinosae (incl.Prunetalia)_______

Prunus spinosa_________________________ 4

3

2 3

2

3

2

V

Crataegus monogyna____________________ + 23 1

2

2

1

V

Clematis vitaiba_________________________ + + — + — + + IV

Rosa canina - + + — + + + IV

Ligustrum vulgare________________________ - — — — + + + III

Frangula alnus__________________________ — — — + — + — II

Querco-Fagetea_________________________

Pyrus pyraster___________________________ - + — — + - + III

Quercus robur___________________________ + — + — - + — III

Astragalus gycyphyllos_____________________ - — — — + — + II

Quercetea pubescenti-petraeae___________

Lembotropis nigricans_____________________ - — — + + + — III

Peucedanum cervaria_____________________ - — — + - + + III

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