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Evapotranspiration Remote Sensing and Modeling Part 18

Tham khảo tài liệu 'evapotranspiration remote sensing and modeling part 18', khoa học tự nhiên, công nghệ sinh học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Adaptability of Woody Plants in Aridic Conditions 499 Pyrus pyraster Sorbus domestica Fig. 5. Wild pear Pyrus pyraster and service tree Sorbus domestica stand classification in Slovakia according to climate-geographic types. of two of the analysed locations 1 and 5 where the annual average temperature ranges from 7.5 C to 7.7 C. The average annual sum of precipitation for the majority of the stands is 610-700 mm with the exception of the two mentioned locations where this parameter reaches 790 mm and 750 mm respectively. The potential evapotranspiration amount in the majority of the analysed stands was 600-750 mm during one year. Considering that the annual average sum of precipitation is 610-700 mm it is possible that the service tree has to obtain enough moisture during the main growing season predominantly from water resources in soil. The deficit of rain during the summer occurs in the majority of the stands with this woody plant. Warm and arid southeast south southwest and even west stand exposures play an important role in the formation of the arid microclimate and mezzo-climate of the mentioned locations. According to climate classification in Slovakia Spánik et al. 1999 the analysed locations with service trees were in warm and even moderately warm as well as semi-humid and even semi-arid climates. Compared to the wild pear the service tree prefers stands at lower altitudes and is prevalent in warm and arid climates. The wild pear has wider ecological amplitude and grows at higher altitudes in stands with different water regimes and climate extremes. Based on the brief pedology characteristics of our experimental plots we can hypothesize that these soils are very well fertile Chernozem Fluvi-mollic soils Cambisols and Orthic Luvisols or well supplied with nutrients Luvisols Pararendzinas and Fluvisols . In addition browned Rendzinas can be considered as relatively favourable soils. According to the ecological scheme of Ellenberg 1978 the wild pear is a .