Adatok a Heves–Borsodi-sík flórájához I. Erdei, erdőssztyepp- és sztyeppfajok elterjedése

Abstract

This paper reports new floristic data of 159 taxa (158 species and one hybrid) from the Heves-Borsod Plain (5 micro-regions between the Mátra and Bükk Mountains and the Tisza River valley). The data were collected between 1999 and 2018 and supplemented with collected specimen (altogether 93 herbarium sheets). This study is the first part of a thematic series that analyzes the distribution patterns of forest, forest steppe and dry grassland 'steppe' species, beyond reporting floristic data. The data were derived from 51 flora-mapping quadrats (CEU), based on 5.395 field collected data records. Some indicator species of the three species groups have been assessed in detail (with the addition of distribution maps of 25 species). I have also tested two East-West direction 'lines' (the 100-meter isoline and the Csörsz Ditch) for the possible existence of North-South chorological gradients in the area. True forest species (mostly Querco-Fagetea elements) show a dispersed pattern, their representatives can be linked to forest blocks appearing in the landscape. Streams from the adjacented hilly areas (even if they are strongly modified) are very important in the dispersal of the forest species. Their significance and role are decreasing towards the South. For some steppe and forest steppe species (e.g. Brachypodium pinnatum, Campanula bononiensis, Clematis recta, Elymus hispidus, Lychnis viscaria, Ranunculus illyricus, Sanguisorba minor, Stipa spp., Teucrium chamaedrys, Trifolium alpestre, Vinca herbacea) the examined lines indicate a regional area boundary, while for other species (e.g. Phlomis tuberosa, Thalictrum minus) gradient-like distribution differences were not observed. In the distribution of many species an additional southern gradient running along the northern boundary of the former Heves Floodplain was detected. Southwards to this line, the representatives of the selected species are already very sporadic, occurring only in synantropic habitats (e.g. Vincetoxicum hirundinaria).Összefoglalás -A cikkben a Heves-Borsodi-sík 5 kistájának területéről 159 taxon (158 faj és egy hibrid) 1999 és 2018 között feltérképezett elterjedési adatait közlöm. A tanulmány egy tematikus sorozat első része, mely az erdei, erdőssztyepp-és száraz gyepekhez köthető sztyeppfajok elterjedési mintázatát elemzi, a florisztikai adatközlésen túl. A kiválasztott, magas indikációs tulajdonsággal bíró, növényföldrajzi szempontból is jelentős fajok esetében lehetséges észak-déli flóragradiensek értékelését is elvégeztem, kiemelten a Csörsz-árok és a 100 méteres izohipsza vonal tekintetében.

Examination of Forest Steppe Species in the Case of Areas Where Traditional Cultivation Was Abandoned

“…Previously, in the plant geography-vegetation literature, the species of point 2 were mostly considered to be forest steppe species, largely based on the categorization of Jakucs (1961). To compare our figures to Schmotzer's forest steppe data [37], we also signed the forest steppe species that occurred in the area based on Schmotzer's list (Table 1). The nomenclature of species follows the work of Simon [41] and that on coenotaxons by Borhidi [9,42].…”

“…A total number of 72 forest steppe species (Table 1) were recorded in the coenological surveys based on the FS list of Kun and Bölöni [15], which is more than one and half times higher than the number of those found by Schmotzer (42 species) [37] in a nearby microregion (Heves-Borsodi Plain) (Table 1). The discrepancy is due to the differences in the definition of FS species (cf.…”

“…In addition to forest and steppe-dwelling plants and animal species, they also contain so-called forest steppe species associated with forest edges and semi-shaded micro-habitats, which are protected from extremes [15]. In recent decades, several researchers have addressed these issues [35][36][37]. The range of forest steppe species was most comprehensively defined in the synthesis of 35Kun and Bölöni [15].…”

“…List of forest steppe species of the investigated abandoned lands (*-FS species determined by Schmotzer[37]). …”

New Habitat Data of the Green-Winged Orchid (Anacamptis Morio L.) Located in the Surroundings of Eger, Hungary

“…The publication, which is relevant in several respects, notes that the species appears also in cemeteries in Egerszalók and Demjén villages, close to Eger. Also, data on the distribution of the forest, foreststeppe and steppe species of the flora of the Heves Borsodi Plain contained relevant data only regarding the Lógó Bank near Kerecsend(Schmotzer, 2019).…”