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Zmienność bilansu cieplnego ziemniaka w różnych regionach Polski

Gąsiorek E., Musiał E., Bubnowska J., Łabędzki L.

Przegląd Naukowy Inżynieria i Kształtowanie Środowiska

2006

Vol. 15, No. 2

130--139

Two last decades of the XX-th century are characterized by significant changes in the air temperature in Poland. Growing air temperatures in different regions of Poland, especially in the last twenty years, result from the increasing values of sensible heat flux used for heating the atmosphere. Sensible heat flux is one of the components of heat balance, therefore this subject has affracted our attention. Heat balance of the active surface, which is each surface where the conversion of mass and energy is proceeded, can be treated as an indicator of warming up. In this paper the following components of heat balance for potatoes during vegetation period (V-IX) were considered: net radiation [W/m2 ], soil heat flux [W/m2 ], sensible heat flux [W/m2 ] and latent heat flux [W/m2 ]. The investigations were performed in the following regions of Poland: Bydgoszcz (1945-2004), Wrocław (1964-2000), Łódź (1954-1995) and Gorzów Wielkopolski (1970-1995). The main purpose of this study is to define the space distribution of all components of heat balance, their variation and tendencies during the potatoes vegetation period (V-IX) in considered regions.