Abstract
The analysis of the agroclimatic resources of the Siberian Federal District in the warming climate has revealed statistically significant (most pronounced in the last two decades) increasing trends in the sum of active temperatures and the growing-season length due to the earlier (by 5-7 days) dates of the stable 5°C crossing in spring and the later ones (by 2-4 days) in autumn. In most of the territory, the changes in total precipitation are statistically insignificant, except for a few stations. The frequency of late and early frosts has not changed and remained within the climatological normal. The maximum growth of green biomass, which was estimated by the NDVI (Normalized Difference Vegetation Index) values, is facilitated by an early beginning of the growing season and a rapid transition to the period of active vegetation. The influence of meteorological conditions on the growth is significant at the beginning of the growing season and is quickly leveled by mid-summer.
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