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 73
... complex organic substances in the cells of the autotrophs . 2. The heterotrophic ( other - feeding ) component , which is essentially concerned with using , rearranging and decomposing complex organic substances made available by the ...
... complex organic substances in the cells of the autotrophs . 2. The heterotrophic ( other - feeding ) component , which is essentially concerned with using , rearranging and decomposing complex organic substances made available by the ...
Page 103
... complex abruptly exceeds the tolerance of all trees regardless of variations among them ' . The factor - complex hinted at by Daubenmire affects tall and low plants differently since many species of shrubs and herbs are not prevented ...
... complex abruptly exceeds the tolerance of all trees regardless of variations among them ' . The factor - complex hinted at by Daubenmire affects tall and low plants differently since many species of shrubs and herbs are not prevented ...
Page 221
... complexes ) Ea - Evesham Series Hn Na - Hanslope Series - - Newport Series AH1 - Astley Hall Complex Mg - Melton Series Texture and geology Clayey ; over clay - shale ( Lower Lias and Rhaetic ) Clayey ; Chalky Boulder Clay Coarse loamy ...
... complexes ) Ea - Evesham Series Hn Na - Hanslope Series - - Newport Series AH1 - Astley Hall Complex Mg - Melton Series Texture and geology Clayey ; over clay - shale ( Lower Lias and Rhaetic ) Clayey ; Chalky Boulder Clay Coarse loamy ...
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