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 55
... Vegetation prevented by a factor from progressing to the climax community and held in a state below this end - stage is referred to as subclimax vegetation . Through frequent burning , and sometimes grazing , many lowland heaths in ...
... Vegetation prevented by a factor from progressing to the climax community and held in a state below this end - stage is referred to as subclimax vegetation . Through frequent burning , and sometimes grazing , many lowland heaths in ...
Page 58
... climax vegetations would develop because the climatic factor cannot wholly ... vegetation should be stable and self - perpetuating . He found many cases ... vegetation is , therefore , constant neither in space nor in time . A cyclic ...
... climax vegetations would develop because the climatic factor cannot wholly ... vegetation should be stable and self - perpetuating . He found many cases ... vegetation is , therefore , constant neither in space nor in time . A cyclic ...
Page 156
... vegetation displayed in the British Isles would lead to a very shallow approach . By selecting a few types for fuller ... Vegetation Introduction The climax vegetation • Palynology Woodlands Upland moors ⚫ Discussion section • References.
... vegetation displayed in the British Isles would lead to a very shallow approach . By selecting a few types for fuller ... Vegetation Introduction The climax vegetation • Palynology Woodlands Upland moors ⚫ Discussion section • References.
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