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 110
... slopes . These Cairngorm forests are the best surviving remnants of the once extensive Caledonian Forest which formerly covered much of Highland Scotland . Wind was studied as one of the factors considered to be preventing the re ...
... slopes . These Cairngorm forests are the best surviving remnants of the once extensive Caledonian Forest which formerly covered much of Highland Scotland . Wind was studied as one of the factors considered to be preventing the re ...
Page 193
... slopes the Calluna community passes directly to the Juncus ( rush ) zone . But on more sheltered slopes it grades into the Empetrum - Vaccinium zone , which reaches its main development between 915-1,066 m . This may Upland moors 193.
... slopes the Calluna community passes directly to the Juncus ( rush ) zone . But on more sheltered slopes it grades into the Empetrum - Vaccinium zone , which reaches its main development between 915-1,066 m . This may Upland moors 193.
Page 210
... slopes this skeletal nature can be maintained for many years . Surface material tends to be lost downslope and fresh chalk fragments become incorporated from below into the surface zone . As they develop , they become similar to rankers ...
... slopes this skeletal nature can be maintained for many years . Surface material tends to be lost downslope and fresh chalk fragments become incorporated from below into the surface zone . As they develop , they become similar to rankers ...
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