Basic BiogeographyFirst published in 1985. This is the is the second edition of a study looking at ecology and biogeography with updated chapters including current research. It starts with the with the study of plants to gain an understanding of the complexities of ecological relationships. |
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Page 50
... leads to the exclusion of air from pore spaces and deprives plant roots and soil organic life of vital oxygen supplies . This can lead to depressed growth or rapid death of species . Hence , the balance between not enough soil water and ...
... leads to the exclusion of air from pore spaces and deprives plant roots and soil organic life of vital oxygen supplies . This can lead to depressed growth or rapid death of species . Hence , the balance between not enough soil water and ...
Page 72
... lead to replacement of the colonizing species ( Group I ) by persistent species ( Group II ) . In an early stage several grass species establish beneath the juniper scrub and are then followed by several shrubs ( spp of Prunus , Rhus ...
... lead to replacement of the colonizing species ( Group I ) by persistent species ( Group II ) . In an early stage several grass species establish beneath the juniper scrub and are then followed by several shrubs ( spp of Prunus , Rhus ...
Page 290
... lead to pan development . They may also form when raw humus begins to accu- mulate . This restricts the plant rooting and eventually leads to increased water retention at the surface . Both these processes can be brought about either by ...
... lead to pan development . They may also form when raw humus begins to accu- mulate . This restricts the plant rooting and eventually leads to increased water retention at the surface . Both these processes can be brought about either by ...
Contents
Introduction | 3 |
Initial approaches to vegetation study | 12 |
Initial approaches to soil study | 34 |
Copyright | |
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Common terms and phrases
acid agricultural animals approach areas biogeography birch Britain British Isles brown earths bryophyte Cairngorm Calluna cations cent changes chemical clay climatic climax vegetation complex conifers conservation coypus crop cycle deciduous deer disturbance dominant Ecol ecology ecosystem energy environment environmental erosion example factors fire Flandrian forest Forestry Forestry Commission gley soils grass grazing ground flora growth habitat heather herbivores horizon humus important increase influence input insect land landscape layer leached lichen litter mainly methods mineral moorland moors mountain natural nutrients oakwood occur organic parent material pattern peat pest pine pinewood Pinus plant communities podzol pollen population present PRINT#3 production quadrats Quercus Quercus petraea recent region sample Scotland Scots pine Scottish Highlands seed seedlings shrubs slopes species structure surface Table temperature tree-line trees trophic level tropical upland values vegetation wood woodland Zealand zone