Ozone Exposure, Atmos Environ, Soil Water Potential, Spring Wheat, Visible Injury, CO2, CO 2, global warming, climate change, greenhouse effect, greenhouse effect gases, emisiones de gases de efecto invernadero, carbon dioxide
Multiple regression analysis, Catalonia (north-east Spain), Kriging interpolation, Network design, Topo-geographical parameters
Catalonia, weather types, Cluster analysis, Principal component analysis, Minimum temperature