Textbook of Theoretical Botany, Volume 4 |
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Page 3583
... clay ' it consists of a mixture of minerals , of which kaolinite ( china clay ) , Al4Si4O10 ( OH ) , or aluminium hydroxysilicate , is one of the most important , especially in tropical soils . Other clay minerals , the formation and ...
... clay ' it consists of a mixture of minerals , of which kaolinite ( china clay ) , Al4Si4O10 ( OH ) , or aluminium hydroxysilicate , is one of the most important , especially in tropical soils . Other clay minerals , the formation and ...
Page 3597
... clay content of the soil is immense . The internationally agreed upper limit for the size of particles included in the clay fraction is 0.002 mm ( 2 μ ) , but clay particles as small as 10 mμ have been isolated . The particles are thus ...
... clay content of the soil is immense . The internationally agreed upper limit for the size of particles included in the clay fraction is 0.002 mm ( 2 μ ) , but clay particles as small as 10 mμ have been isolated . The particles are thus ...
Page 3651
... clay - silicates , on the other hand , only release their non - exchangeable reserves , chiefly of Ca and K , by weathering , which decreases particle size and increases solubility . Acid clays , i.e. clays with much exchangeable ...
... clay - silicates , on the other hand , only release their non - exchangeable reserves , chiefly of Ca and K , by weathering , which decreases particle size and increases solubility . Acid clays , i.e. clays with much exchangeable ...
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