Ábrahám Levente (szerk.): Válogatott tanulmányok VII. - Natura Somogyiensis 22. (Kaposvár, 2012)
Salamon-Albert É.: Climatic conditions and habitats in Belső-Somogy, Külső-Somogy and Zselic as vegetation-based landscape regions III. Temperature envelopes of mesic deciduous woodlands
32 Natura Somogyiensis has the highest one. Bioclimatic indeces according to a mean of a short period (e.g. a day, a month or a quarter) or indicating environmental extremities could give a climate limitation for vegetation distribution. Mean diurnal temperature range (BIOCLIM-2) are quite similar among the woodland types as well as the semi-natural habitats, but the minimum, maximum and mean values significantly differs by mesic deciduous woodland types, with the highest mean in pedunculate oak-hornbeam woodlands (Kla). Temperature seasonality of the year (BIOCLIM-4) provides the best range differentiation among the habitats. Pedunculate oak-hombeam woodlands (Kla) have the narrowest seasonality range, beech woodlands (K5) have the range of medium size and sessile oak hornbeam woodlands (K2) have the highest value of it. BIOCLIM-5 the maximum temperature of warmest month has the widest range in sessile oak hornbeam woodlands (K2), the narrowest one in pedunculate oak-hombeam woodlands (Kla) and beech woodlands (K5). Among ranges in minimum temperature of coldest month (BIOCLIM-6), the highest one is observed in pedunculate oak-hombeam woodlands (Kla), the medium sized one is realized by sessile oak hornbeam woodlands (K2) and the narrowest range occurs in the beech woodlands (K5). BIOCLIM-7 the temperature annual range differs pedunculate oak-hombeam woodlands (Kla) by a lower value from sessile oak hornbeam woodlands (K2) and beech woodlands (K5), that show a higher and similar one. By BIOCLIM-8 the mean temperature of wettest quarter, sessile oak hornbeam woodlands (K2) display the highest value of it, and pedunculate oak-hombeam woodlands (Kla) and beech woodlands (K5) have a lower value of range. BIOCLIM-9 the mean temperature of driest quarter, highest range is represented in pedunculate oak-hombeam woodlands (Kla), the medium sized one is realized in sessile oak hornbeam woodlands (K2) and the narrowest range occurs in the beech woodlands (K5). In case of mean temperature of coldest quarter (BIOCLIM-11), range order of the mesic deciduous woodland habitats is similar to that of mean temperature of driest quarter, because of the variable superimposition. According to ranges and means of analysed variables in mesic deciduous woodland habitats, functional groups of temperature responses can be defined. Similarity in that of pedunculate oak-hombeam woodlands (Kla) with beech woodlands (K5) but dissimilarity of sessile oak hornbeam woodlands (K2) was established by BIOCLIM-1, -5 and -8. Gradual change among the habitats was detected by BIOCLIM-6, -9 and -11 from pedunculate oak-hombeam woodlands (Kla) through sessile oak hornbeam woodlands (K2) to beech woodlands (K5) by descending order but by BIOCLIM-8 by ascending order. In order of sessile oak hornbeam woodlands (K2) through beech woodlands (K5) to pedunculate oak-hombeam woodlands (Kla) narrowing ranges are detected by temperature seasonality of the year (BIOCLIM-4). There was a strong superimposition between the summarized temperature envelope of semi-natural habitats (Á-NÉR) and mesic deciduous woodlands (K) as it was verified by the absence of any significant difference (Fig 1, Table 1 and 2). Differences are anticipated among peak distribution of habitat types and/or to envelopes of semi-natural habitats. Results are introduced as the similarity or dissimilarity to semi-natural habitat distribution as the realized regional temperature envelopes. Among temperature variables, all of them show a continuous distribution as a summarized temperature niche characterized with one, two, three or four Gaussian peaks per curves. BIOCLIM-1 the mean annual temperature have no significant difference in any habitats as well as the A-NER distribution. Highest proportion of habitat envelopes occur at medium values of the range. BIOCLIM-2 the mean diurnal temperature presents two-peaked distributions, habitat envelopes are differentiated in the range with significant differences by sessile oak hornbeam woodlands (K2) and beech woodlands (K5) at
