Analysis of grassland ANPP dynamics due to changes in climate variables at Ukrainian Biosphere Reserve "Askania-Nova"
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Date
2017
Authors
Belyakov, Sergiy
Gofman, Orysia
Vyshenska, Iryna
Zvegintsev, Sergey
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Abstract
The Ukrainian feather-grass steppe ecosystems are highly vulnerable to climate changes. To study
the impact of climatic factors on steppe ecosystems’ productivity, the correlation and stepwise
regression analysis between ANPP and other variables were provided. The correlation of bioclimatic
variables (month precipitation, relative humidity and air and soil temperatures) and aboveground
net primary production (ANPP) were investigated for three study plots that represent
major steppe microrelief: plain, slope and lowland. The results of multiple regression analysis
showed the major components that influenced the ANPP at each of the study plots "Plain", "Slope"
and "Lowland". The precipitation and relative humidity in the months before the vegetation peak
were most important for ANPP accumulation.
Results of this study are important for the prediction of ecosystem changes under the climate
changes and also for the development of nature conservation programmes.
Description
Keywords
ANPP, steppe, grassland, precipitation, relative humidity, air and soil temperatures, correlation, multiple regression analysis
Citation
Analysis of grassland ANPP dynamics due to changes in climate variables at Ukrainian Biosphere Reserve "Askania-Nova" [electronic resourse] / Sergiy Belyakov, Orysia Gofman, Iryna Vyshenska, Sergey Zvegintsev // Ekolоgia. - Electronic data. - 2017. - Vol. 36, No. 3. - P. 235-246.