Basic Biogeography |
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Page 211
... Brown earths are slightly to strongly acid soils with a mull or moder humus : surface pH values of 5-6.5 increase ... brown earths is that the free Fe2O3 is uniformly distributed throughout the upper and middle horizons . The soils are ...
... Brown earths are slightly to strongly acid soils with a mull or moder humus : surface pH values of 5-6.5 increase ... brown earths is that the free Fe2O3 is uniformly distributed throughout the upper and middle horizons . The soils are ...
Page 213
... land brown earths and mountain peaty podzols . They occur widely throughout the British Isles , especially on steep slopes , and are very suitable for forestry utilization . Although they may approach the acid brown soils ( the brown earths ...
... land brown earths and mountain peaty podzols . They occur widely throughout the British Isles , especially on steep slopes , and are very suitable for forestry utilization . Although they may approach the acid brown soils ( the brown earths ...
Page 233
... Brown calcareous earths Non - alluvial , loamy or clayey without argillic horizon 5.2 Brown calcareous sands Non - alluvial , sandy , without argillic horizon 5.3 Brown calcareous alluvial soils In recent alluvium 5.4 Brown earths ...
... Brown calcareous earths Non - alluvial , loamy or clayey without argillic horizon 5.2 Brown calcareous sands Non - alluvial , sandy , without argillic horizon 5.3 Brown calcareous alluvial soils In recent alluvium 5.4 Brown earths ...
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