Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 79. (Budapest 1987)

Debreczy, Zs.: Fluctuating-dynamic equilibrium of photophil, xerophil rupicolous plant communities and scrub woods at the lower arid woodland limit

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e-/ona, :,-pp martna ash-ptjbfey^rtt oak torost (Qrntt-Qui'r cetlin

} |^ Idealised tv/p*? wig tre*-pubesctíní oak scrub wood (Cotino-Querretum) 0 '^at situation with a micromosaic of "water loosino" rupk.oioi.is íChrysopijflono-CarícetiJfn) ••ind 'water -fjainiitg scrub wood are.r. Fig. 20. Differences in the vegetation caused by microclimate and water dispersion within small distances on Peter hill, near Balatonfüred. — a: Climate-zonal vegetation manna ash-pubescent oak wood (Orno-Quercetum) with 12-18 m high trees, well reflect the climatic conditions of the area as shown in diagram. — b: "Hypothetical extrazonal scrub-wood" for a hypothetical even underground surface (microrelief) and homogenous soil type and arrangement in the case of suddenly decreasing (falling production caused by exposition, that is, by the increasing amount of heat accompanied by a l /2-1 /3 water deficiency. — c : A real situation of pubescent oak-wig tree scrub wood CotinoQuercetum surrounded by watershed area of low water retention ability where the amount of water effectively available is 1/2-1/4 of that in the scrub wood. Howewer the assimilation surface highly limited by extra dry years, does not reflect this. The calculations above, based on measurement and watering experiments, apply to a long-term precipitation average of 300 mm for summer half year. The long term actual average (356 mm) is decreased by data of local-climate measurements and after the incease in the actual area due to the inclination. The results underline the special connection of the two different types of areas (water loosing-water gaining) from the aspect of water supply