Basic BiogeographyBasic considerations. Introduction. Inital approaches to vegetation study. Inital approaches to soil study. Plant dynamics and the nature of vegetation. Ecosystems. Ecological factors and environmental variations. distubed ecosystems. Selected examples from the British Isles. The vegetation. The soils. The impact of man. |
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Page 21
... field site . For example , we might compare by these methods the spectra for a series of sites on the same mountain , either at different altitudinal levels or on sheltered and exposed slopes at the same altitude . Raunkiaer used these ...
... field site . For example , we might compare by these methods the spectra for a series of sites on the same mountain , either at different altitudinal levels or on sheltered and exposed slopes at the same altitude . Raunkiaer used these ...
Page 30
... field . If necessary , this field investigation can then be followed by a laboratory analysis to provide more precise information . With practise and experience many soil properties can be adequately determined in the field and there ...
... field . If necessary , this field investigation can then be followed by a laboratory analysis to provide more precise information . With practise and experience many soil properties can be adequately determined in the field and there ...
Page 63
... field of more or less continuous variation by the term nodum , an abstract vegetation unit of any category ( see Fig . 4.11 ) . 0 2 4 km A3 A1 B B2 B3 A2 B1 This set generalized to this In form similar to A3 ( or B3 ) ( The Nodum ) B3 ...
... field of more or less continuous variation by the term nodum , an abstract vegetation unit of any category ( see Fig . 4.11 ) . 0 2 4 km A3 A1 B B2 B3 A2 B1 This set generalized to this In form similar to A3 ( or B3 ) ( The Nodum ) B3 ...
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 birch Britain British Isles brown earths Cairngorm Cairngorm Mountains Calluna changes chemical clay climatic climax community climax vegetation complex 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 Highlands 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 spread stage structure surface Table temperature timber-line tree-line upland usually variations vegetation whilst wood woodland zone