Basic Biogeography |
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Page 212
... surface mor is strongly acid , pH 4 or less , but the lower layers show an increase in value towards about pH 5.5 . Podzols will readily form under cool , wet climatic regions and in these areas they are particularly well represented ...
... surface mor is strongly acid , pH 4 or less , but the lower layers show an increase in value towards about pH 5.5 . Podzols will readily form under cool , wet climatic regions and in these areas they are particularly well represented ...
Page 214
... surface . This causes waterlogging of the upper horizons and ground surface in wet seasons . Characteristic rusty mottlings are seen in the upper zones and the sub - soil layers show grey or orange blotches . Ground - water gley soils ...
... surface . This causes waterlogging of the upper horizons and ground surface in wet seasons . Characteristic rusty mottlings are seen in the upper zones and the sub - soil layers show grey or orange blotches . Ground - water gley soils ...
Page 215
... surface . The lower layers of peat may be amorphous , the peat becoming more decomposed with depth . The surface vegetation does not have the luxuriance or floristic diversity of a fen peat and is often dominated by a few species . An ...
... surface . The lower layers of peat may be amorphous , the peat becoming more decomposed with depth . The surface vegetation does not have the luxuriance or floristic diversity of a fen peat and is often dominated by a few species . An ...
Contents
Introduction | 3 |
Initial approaches to vegetation study | 11 |
Initial approaches to soil study | 28 |
Copyright | |
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acidic agricultural animals approach areas become biogeography biotic birch Britain British Isles brown earths Cairngorm Cairngorm Mountains Calluna changes chemical clay climatic climax community climax vegetation complex conservation coypus crop cycle deciduous deer dominant Ecol ecologists ecosystem energy environment environmental erosion example fire forest Forestry Forestry Commission gley soils grass grazing ground flora growth heather herbivores horizon humus important increase influence insect land landscape layer leached lichen litter methods mineral moorland moors mountain native natural nutrients oakwoods occur organic parent material pattern peat pedogenic pest pine pinewood Pinus plagioclimax plant communities plant cover podzol pollen population present produce quadrat Quercus recent regeneration region sample Scotland Scots pine Scottish Highlands seedlings shrubs slopes soil types stage structure surface Table temperature timber-line tree-line upland usually variations vegetation whilst wood woodland zone