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 107
... temperatures are close to the ambient air temperature . Here they can grow sufficiently well to become reasonably tall upright specimens . Where temperature gradients above the ground are steepened by the action of such factors as ...
... temperatures are close to the ambient air temperature . Here they can grow sufficiently well to become reasonably tall upright specimens . Where temperature gradients above the ground are steepened by the action of such factors as ...
Page 123
... temperature ( and thus the temperature of the plant parts within the soil ) independently of the air temperature . This work was followed by the use of ' heating collars ' to examine the effect of localized temperature changes on a ...
... temperature ( and thus the temperature of the plant parts within the soil ) independently of the air temperature . This work was followed by the use of ' heating collars ' to examine the effect of localized temperature changes on a ...
Page 128
... Temperature and leaf growth in Lolium perenne II . The site of temperature perception ' , J. appl . Ecol . , 12 , 115-24 . Pears , N. V. , 1967. ' Present tree - lines of the Cairngorm Mountains , Scotland ' , J. Ecol . , 55 , 815-29 ...
... Temperature and leaf growth in Lolium perenne II . The site of temperature perception ' , J. appl . Ecol . , 12 , 115-24 . Pears , N. V. , 1967. ' Present tree - lines of the Cairngorm Mountains , Scotland ' , J. Ecol . , 55 , 815-29 ...
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