Ábrahám Levente (szerk.): Válogatott tanulmányok V. - Natura Somogyiensis 17. (Kaposvár, 2010)

SALAMON-ALBERT, É., ORTMANN-AJKAI, A., HORVÁTH, F., & MORSCHHAUSER, T.: Klíma és élőhelytípusok Belső-Somogy, Külső-Somogy és Zselic vegetáció alapú tájegységeiben I. Klímafelszínek és az erdei élőhelyek éghajlati tartománya

72 NATURA SOMOGYIENSIS Fig. 3. Climatic envelope by precipitation (BIOCLIM 17) to mean temperature (BIOCLIM 9) of driest quarter for woodland habitats (Abbreviations and variables see in Material and method) The third selected pair among bioclimatic variables is BIOCLIM 18 as the precipitation of warmest quarter to BIOCLIM 10 as mean temperature of warmest quarter, reflecting to quarterly climatic optimum of a short term inside the regular vegetation period (Table 2, Fig 4). The warmest quarter could result an environmental optimum period for vegetation existence. Occurrence all of woody habitat types is characteristic in a wide range of quarterly precipitation, and a regionally differentiated narrow range of temperature. Range of climatic envelope by BIOCLIM 18 is the widest in KülsőSomogy region, the narrowest in Zselic or Belső-Somogy region. Range of climatic envelope by BIOCLIM 10 as the mean temperature of warmest quarter is also the widest in Külső-Somogy region, the narrowest is in Belső-Somogy region. Habitats are wellordered by an increasing precipitation gradient, but decreasing and tightening temperature range from Külső-Somogy, through Zselic to Belső-Somogy. Between these two bioclimatic indexes, both BIOCLIM 17 and BIOCLIM 9 proved to be effective for regional and habitat differentiation. Among habitat types, R and L woodlands exist in a wide range of temperature and precipitation, J habitats are under wide range of precipitation but a narrow range of temperature, and K habitats are under a narrower range of precipitation and a wide range of temperature in the warmest quarter.