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 111
... Scots pine reached 2-7 m and the lodgepole pine grew to 4 ยท 6 m ) . With the upper forest margins in Scotland in their present condition , i.e. artificial and excessively ' open ' in character due to the activities of man , exposure to ...
... Scots pine reached 2-7 m and the lodgepole pine grew to 4 ยท 6 m ) . With the upper forest margins in Scotland in their present condition , i.e. artificial and excessively ' open ' in character due to the activities of man , exposure to ...
Page 186
Nigel Pears. Fig . 8.19 A natural fragment of Scottish pine and birch woodland at 400 m , Ryvoan , Cairn- gorm Mountains . The open nature of the woodland encourages the development of tall juniper ( in a columnar growth - form ) and ...
Nigel Pears. Fig . 8.19 A natural fragment of Scottish pine and birch woodland at 400 m , Ryvoan , Cairn- gorm Mountains . The open nature of the woodland encourages the development of tall juniper ( in a columnar growth - form ) and ...
Page 239
... Scots pine , candle fir being a primitive form of home lighting . ) The practice of muirburning was of even greater ecological importance . This was widespread and frequently the fires got out of control . It became so excessive that by ...
... Scots pine , candle fir being a primitive form of home lighting . ) The practice of muirburning was of even greater ecological importance . This was widespread and frequently the fires got out of control . It became so excessive that by ...
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