VOLUME 1 Issue4/1

DOI: https://doi.org/10.32636/agroscince.2022-(1)-4-1 

INFLUENCE OF WEATHER CONDITIONS ON PRODUCTIVITY

AND BIODIVERSITY OF GRASSLANDS IN WESTERN UKRAINE

Halyna PANAKHYD, doctor of agricultural sciences

Institute of Agriculture of Carpathian Region of NAAS

The investigation was carried out under the conditions of the stationary permanent experiment in western Ukraine. Long-term permanent grassland was sowed in 1974 on the dark-grey podzolic sand-loamу soils. The research was conducted in 1991–2014. The aim of this study is to determine the impact of climate changes on biodiversity and yield of grassland. This makes it possible to establish relation of productivity with weather conditions and this allows to recognize how to increase productivity with biodiversity retention at the same time.

Considerable factors of impact on grasslands were weather conditions and climate changes. They decreased percentage of mesophytes on unfertilized and insufficient fertilized plots. Further consequence was replacement of these grasses by more resistant species. Applications of NPK had smooth impact of weather condition and become the principal factor of yield and biodiversity control.

Optimal dozes of NPK fertilizers will  regulate species composition and will permit to produce 8-9 t/ha of dry matter (DM) in condition of semicontinental climate independently to weather conditions and age of grassland.

     Keywords: biodiversity, climate change, grasslands, precipitations, productivity, temperature.