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The correspondence between multiyear mean values of annual transpiration values derived with the Penman-Monteith methods using
the coefficient of transpiration efficiency is demonstrated. It is suggested to take into account climate peculiarities in
the region when estimating the transpiration with the Penman-Monteith method. In the mid-taiga sub-zone that is characterized
by high moisture content, the stomatal resistance (conductance) of the leaf apparatus, when calculating the diurnal transpiration,
can be taken as constant, independent of the meteorological conditions. 相似文献
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The evaporation from forest area is shown to depend to a large degree on the growth conditions and productivity of forest stand; under the climatic conditions of the Eastern Fennoscandia, the variations in the productivity of forest stand of a particular forest type are mainly governed by the temperature. It is found that at the likely rise of the mean annual air temperature by 1 and 2°C, the average productivity of coniferous forest would increase by 0.3–0.7 (depending on the tree species and physiographic subzone) and 0.6–1.1 of the forest stand quality class, respectively; the increase in the annual evapotranspiration from a relatively large forest drainage basin could average 20–25 mm at a 2°C-temperature rise. 相似文献
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