“Terroir” and climate change in Franconia / Germany

Franconia which is a “cool climate” winegrowing region is well known for its fruity white wines. The most common grape cultivars are Silvaner and Mueller-Thurgau.
Franconia is a landscape of contrasts with various climatic conditions. The vineyard sites are located at a height between 120 m and 420 m above sea level on slopes and steep slopes as well as on terraces.
In favourable south orientated sites the maximum temperatures reach about 40° C (peak value year 2003), while winter frosts cause deep temperatures down to about -27°C (year 2002) in valleys or exposed sites.
At present, the Franconian winegrowing region is being affected by the global climate change. Several forecasts predict an average annual temperature increase of approximately 2°C for Southern Germany until the year 2050. During the same period an increased occurrence of temperature-related extreme events is expected.
In case of permanent increase of the average air temperatures and temperature-related extreme events, the cultivation of grapes on E, W and NW slopes could be considered appropriate to preserve the fruity character of traditional white wines.