Textbook of Theoretical Botany, Volume 4 |
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Page 3540
... radiation , which can be applied to any wavelength . The basis for this is the gram - calorie ( p . 3514 ) and 1 gcal / cm2 / min is the unit of radiant energy flux or langley . One langley represents a radiation intensity of about ...
... radiation , which can be applied to any wavelength . The basis for this is the gram - calorie ( p . 3514 ) and 1 gcal / cm2 / min is the unit of radiant energy flux or langley . One langley represents a radiation intensity of about ...
Page 3544
... radiation are the slope of the ground and the height above sea level . The for- mer we have already described ( p . 3517 ) The effect of the latter is principally due to decreased atmospheric absorption , by reason of diminished air ...
... radiation are the slope of the ground and the height above sea level . The for- mer we have already described ( p . 3517 ) The effect of the latter is principally due to decreased atmospheric absorption , by reason of diminished air ...
Page 3711
... radiation income is lost by surface reflection and by re- radiation of absorbed energy . After allowing for these losses we can estimate the net radiation surplus , which represents the actual gain of energy . Reflection affects both ...
... radiation income is lost by surface reflection and by re- radiation of absorbed energy . After allowing for these losses we can estimate the net radiation surplus , which represents the actual gain of energy . Reflection affects both ...
Contents
A RETROSPECT OF ECOLOGY | 3317 |
SCOPE AND Objectives of ECOLOGY | 3333 |
CONCEPTS USED IN ECOLOGY | 3340 |
Copyright | |
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acid Africa algae alpine America amount analysis Angiosperms Antarctica Arctic association biotypes Calluna carbonate cent centre changes climate colloids competition complex continental Cretaceous density depth diploid dispersal distribution dominant ecological ecotypes edaphic effect endemic environment epilimnion Europe example factors families flora floristic floristic provinces forest frequency genera genetic genus geographical geological grassland growth habitat halophytes humidity humus hypolimnion important increase individuals lakes latitude layer limited lower metres migration mineral montane mountains mycorrhiza natural North America northern number of species occur oceanic organic origin peat period phosphate photosynthesis physiognomy plankton plant communities Plant Geography podsols polyploidy population quadrats radiation rainfall region relationships relatively relict roots salinity sample season seeds soil South surface taxonomic temperate temperature tion trees Tropic of Cancer Tropic of Capricorn tropical units variation vegetation wide zone