S. Orbán szerk.: Studia Botanica Hungarica 11. 1976 (Budapest, 1976)
Szujkóné Lacza, Júlia, Kováts, Dezső, Orbán, Sándor, P. Verseghy, Klára, P. Komáromy, Zsuzsa; Hajdu, Lajos: Néhány egyszerű módszer a Hortobágy Nemzeti Park (HNP) növényfajainak és vegetációjának tanulmányozásához
SZUJKÓJNÉ-LACZA. J. KOVÁTS, I). - ORBÁY S. - P. VERSEGHY, K P. KOMÁROMY. Z*. HAJDl . L.: Some simple methods for studying îh*> species and vegetation of Hortobágy National Park <H!\P) In the HNP, the research staff ot the Botanical Department Natural History Museum, are active along three main lines of investigations. The first is the floristical exploration including also the cryptogams of these lowlands, with the usual study methods. The second, on several sample plots, is a recognition of the mosaically distributed plant communities displaying series of natural and antropomorph successions, on the alkali soil, for this purpose we use different statistical methods. The third is the registration of the development of species, constituting vegetation in time and space (from a dynamic point of view) by our phenometric decimal description methods. In these paper we submit these quantifyed phenological signsystems which will we hope be suitable for the registration of the ontogenèse of species. The cyclic ontogenèse of living substances can be divide into four developmental stages - anabiotic, juvenile, adult (within this generative) and senile, Within these stadia many phenophases are again discernible. With respect to the plants - and in concordance with the foregoing stage - the adequate terminology is proposed as follows: resting, vegetative, generative and desorganizative . As concerns the flowering planta, the phenological method was elaborated first by SZUJKÓ-LACZA - FEKETE (1973) and now further expounded in this paper (see tabla I). In table II there appear the decimal numbers and their interpretation for the mosses, in table III for the lichens, in table IV for the algae and in tabla V for the genus Chara. However, in the course of our study we obtained many characteristics of plants, which give the entire habitus of vegetation. For example, one of the characters of flowering plants is the life-form, as elaborated by RAUNKIAER (1907), his concept and signsystem can applied in our work. The groups of cryptogams - with a few exeptions - hitherto lacked the sign and interpretation of life-form i. e. the plant characteristics of the adaptation to the unfavourable season of the climate. For these groups e. g. the mosses and algae, the specialists S. ORBÁN and ZS. P. KOMÁROM Ï constructed the corresponding life-form system. The mutual and complementary of enquires into the phenology and life-form have been known by investigators since long. In addition, life-form refers implicitely to the> resting period nearly every case, therefore the two methods can be found also together in recent papers, as for example in MÁTHÉ - NAGY - SZŐCS (1974).
