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

a Mean temperature of summer/winter half-ye b Total hours of sunshine summer /winter haif ye.ip C Sum of the temperature of summer half-year 0 Average of precipitation: annua!'summer half-year HW - high water level before water regulation or in reality GW a ground water level p. s of a v. h = see at frigido-series sand mainly loess silicate carbonate (acidic) (li

my) BASIC STRAT/ /«o f l/ /ha r d/ /•o»t/ Fig. F Diagrammatic representation of the Carpato-Pannonian vegetation in connection with "too wet" and "loo dry" lower and "too cold" upper woodland limit. Associations in an idealised cross-section of the area as member of a perpetuated hygro-, xero- and frigido-series. — p. s. of a v. h. = perpetuated steps [gradients] of a vegetation historical frigido-series, x-s = xero-series