Basic Biogeography |
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Page 248
... Forestry Commission was specifically charged with the task of building up strategic reserves of timber following the depletion during the First World War . This has been a difficult task because of the long time - span for tree species ...
... Forestry Commission was specifically charged with the task of building up strategic reserves of timber following the depletion during the First World War . This has been a difficult task because of the long time - span for tree species ...
Page 257
... forestry because of very steep , dry , wet or rough nature VIII . Not suitable for cultivation , grazing or forestry . Extremely rough , dry or wet land . Useful only for wildlife , recreation or watershed protection The following land ...
... forestry because of very steep , dry , wet or rough nature VIII . Not suitable for cultivation , grazing or forestry . Extremely rough , dry or wet land . Useful only for wildlife , recreation or watershed protection The following land ...
Page 263
... Forests , see Woodlands Forestry , 247 Forestry Commission , 122 , 202 , 239 , 241 , 245 Forestry Commission , 122 , 202 , 239 , 241 , 245 Fosberg , F. R. , 72 Frequency classes of plants , 22 , 24 , Frost , L. C. , 230 Fungal disease ...
... Forests , see Woodlands Forestry , 247 Forestry Commission , 122 , 202 , 239 , 241 , 245 Forestry Commission , 122 , 202 , 239 , 241 , 245 Fosberg , F. R. , 72 Frequency classes of plants , 22 , 24 , Frost , L. C. , 230 Fungal disease ...
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