Textbook of Theoretical Botany, Volume 4 |
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Page 3394
... layer Shrub layer Upper field layer Lower field layer Ground layer FIG . 4.5a . Typical layering of a temperate woodland . ( After Lundegardh . ) Stratum Many types of vegetation consist of distinct layers of plants of differing stature ...
... layer Shrub layer Upper field layer Lower field layer Ground layer FIG . 4.5a . Typical layering of a temperate woodland . ( After Lundegardh . ) Stratum Many types of vegetation consist of distinct layers of plants of differing stature ...
Page 3396
... layer under various trees , P. cembra , P. mugo and Larix europaea . Similarly a single tree species may have different field layers below it in different localities or different circumstances . Thus in the Harz mountains in Germany the ...
... layer under various trees , P. cembra , P. mugo and Larix europaea . Similarly a single tree species may have different field layers below it in different localities or different circumstances . Thus in the Harz mountains in Germany the ...
Page 3642
... layers ( corres- ponding to the A。 and A1 layers ) which relates them to the process of humi- fication . First comes the L layer or layer of free litter on the forest floor . Second , lies the F layer , or fermentation layer ; this ...
... layers ( corres- ponding to the A。 and A1 layers ) which relates them to the process of humi- fication . First comes the L layer or layer of free litter on the forest floor . Second , lies the F layer , or fermentation layer ; this ...
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