Is climatic regionalization in frame of estimated pedologic-ecological system actual in 21st century?

  • Hana STŘEDOVÁ Department of Applied and Landscape Ecology, Mendel University in Brno, Czech Republic
  • Filip CHUCHMA Czech Hydrometeorological Institute, branch office Brno, Czech Republic
Keywords: air temperature sum, drought, precipitation, climate development

Abstract

Climatic variables defining climatic regions of estimated pedologic-ecological
system (EPEU) were calculated based on fifty-year climatic data from 1961 to 2010. Obtained
results were subsequently compared to intervals determining individual climatic
regions defined by previous climatic data (1901–1950). In many agricultural intense areas
sum of air temperature and mean air temperature exceeded upper limit. In terms of precipitation
it is especially noticeable in the wet (higher) altitudes. Significant volatility was
found for probability of dry periods from April to September. The values of the moisture
certainty from April to September for the period 1961–2010 reached to several tens. In
the final analysis, the only safe prediction is that the present and future are likely to be
very different from the past. It is necessary to take it into account for actualization of
EPEU methodology. Among the strongest arguments justifying the need of this actualization
is in particular climate development since 1901, technological progress and improved
measurement technology as well as automation and development of climate models coupled
with simulations of complex characteristics and estimates of future climate. It is
evident that the development of climate and other factors have an enormous impact on
soil fertility. This should be also taken into consideration when fixing the official price. It
is necessary to consider the possible replacement of the existing characteristics by more
suitable (for example soil moisture balance). The findings might be summarized in few
words: old climatic regions do not reflect actual climatic conditions.

Published
2014-09-30
How to Cite
STŘEDOVÁ, H., & CHUCHMA, F. (2014). Is climatic regionalization in frame of estimated pedologic-ecological system actual in 21st century?. Contributions to Geophysics and Geodesy, 44(3), 219-230. https://doi.org/10.1515/congeo-2015-0002
Section
original research papers