Basic Biogeography |
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Page 101
Nigel Pears. suppression of the forest edge . The main tree species here is Pinus sylvestris var . scotica ( Scots pine ) , although locally Betula pubescens ( birch ) and Sorbus aucuparia ( rowan ) may also be prominent at the forest ...
Nigel Pears. suppression of the forest edge . The main tree species here is Pinus sylvestris var . scotica ( Scots pine ) , although locally Betula pubescens ( birch ) and Sorbus aucuparia ( rowan ) may also be prominent at the forest ...
Page 122
Nigel Pears. the opportunity to select and encourage the most suitable tree species for a site as the main advantages of fire use . Such burning , if properly done , produces an entirely positive effect on the availability of nutrients ...
Nigel Pears. the opportunity to select and encourage the most suitable tree species for a site as the main advantages of fire use . Such burning , if properly done , produces an entirely positive effect on the availability of nutrients ...
Page 176
... tree ) , reaching heights of 9.0 m , though usually less . This tree is a member of the Lusitanian element in our ... species belonging to this Lusitanian element , whose centre of distribution is the western Mediterranean . In Killarney , ...
... tree ) , reaching heights of 9.0 m , though usually less . This tree is a member of the Lusitanian element in our ... species belonging to this Lusitanian element , whose centre of distribution is the western Mediterranean . In Killarney , ...
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 biotic birch Britain British Isles brown earths Cairngorm Cairngorm Mountains Calluna changes chemical clay climatic climax community climax vegetation complex conservation 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 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 stage structure surface Table temperature timber-line tree-line upland usually variations vegetation whilst wood woodland zone