Basic Biogeography |
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Page 58
... regeneration theory for Northern Temperate Zone virgin forests . Frequently , there was no regeneration taking place under the dominant tree species . It was suggested that the Clementsian climax was like a phantom - always one step ...
... regeneration theory for Northern Temperate Zone virgin forests . Frequently , there was no regeneration taking place under the dominant tree species . It was suggested that the Clementsian climax was like a phantom - always one step ...
Page 121
... regeneration of the trees takes place . This is because litter accumulates to such a depth on the soil surface , perhaps up to 0.5 m of conifer needles . Any seeds deposited here are unable to grow a rooting system quickly enough to ...
... regeneration of the trees takes place . This is because litter accumulates to such a depth on the soil surface , perhaps up to 0.5 m of conifer needles . Any seeds deposited here are unable to grow a rooting system quickly enough to ...
Page 190
... Regeneration of pine and birch woods There is very little natural regeneration taking place in most Scottish pine and birch forests today . Ample seed is produced in a good seed year , which occurs about every 3 to 6 years . But of that ...
... Regeneration of pine and birch woods There is very little natural regeneration taking place in most Scottish pine and birch forests today . Ample seed is produced in a good seed year , which occurs about every 3 to 6 years . But of that ...
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