THE EVALUATION OF INSOLATION INDEXES IN SOME REGIONS OF ALBANIA

Eco climatic indicators have a physical nature and find their expression in special meteorological elements such as: sun light, temperatures, rain, air moisture etc. Evaluation of lighting accepted by FAO(1985), based on the active and potential radiation report gives the following classification: lighting of a value < 0.6 of l/L is low, lighting of a value 0.6-0.8 of l/L is average, lighting of a value > 0.8 of l/L is high. Eco-climatic indicator of sun light is provided on the basis of real measurements carried out in meteorological stations. These indicators have been measured for a period including many years. Evaluation of three micro zones of Voskopoje, Korçe and Sheqeras under study about the indicator of sun light results as follows: The quantity of sun light in Voskopoje micro zone with 2413.6 annual hours, with its minimum in December with 88 hours, and its maximum in July with 313.8 hours. l/L proportion is evaluated with 0.55. The quantity of sun light in Korçe micro zone with 2329.3 annual hours, with its minimum in December with 68.5 hours, and its maximum in July with 284.9 hours. l/L proportion is evaluated with 0.53. The quantity of sun light in Sheqeras micro zone with 2220.8 annual hours, with its minimum in December with 63.8 hours, and its maximum in July with 281.9 hours. l/L proportion is evaluated with 0.50. In conclusion, the evaluation according to FAO model of micro zones under study about the indicator of sun light should be taken into consideration for the agro climatic regionalization of cultivated plants.