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 50
... early development of plant ecology were H. C. Cowles and F. E. Clements . Their studies , centred on North America , were instrumental in establishing a set of principles which had a profound influence on the work of many ecologists in ...
... early development of plant ecology were H. C. Cowles and F. E. Clements . Their studies , centred on North America , were instrumental in establishing a set of principles which had a profound influence on the work of many ecologists in ...
Page 69
... early criticism came from researchers outside the ' classic ' regions . Studies in tropical and semi - arid zones figured prominently in the early rise of alternative views . In Britain , Tansley accepted the Clementsian concept but ...
... early criticism came from researchers outside the ' classic ' regions . Studies in tropical and semi - arid zones figured prominently in the early rise of alternative views . In Britain , Tansley accepted the Clementsian concept but ...
Page 145
... early cultivators also introduced further control . An important concomitant of these techniques was the exposure of pests to the rigours of the climate , the encouragement of natural enemies and of plant resistance . As Mellanby notes ...
... early cultivators also introduced further control . An important concomitant of these techniques was the exposure of pests to the rigours of the climate , the encouragement of natural enemies and of plant resistance . As Mellanby notes ...
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