Climate Change, Global Warming, and Agricultural Droughts - Monitoring and Predicting Agricultural Drought: A Global Study - page 439

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Fig ure 34.3 Annual variability in wheat yields in some European countries; bold solid lines
are the trends.

region and a completely adequate yield model. If these two requirements
are satisfied, the technique of agroclimatic analysis can be developed as
follows.
At the first stage of the analysis, an available model for the prediction
of climate changes is used to carry out the calculations of meteorological
and soil dynamics. The second stage of the analysis involves using a crop
productivity model with regard to the agrotechnology used. The historical
data can be used to give reliable and useful information about the agri-
cultural production losses caused primarily by unfavorable climatic condi-