Basic BiogeographyFirst published in 1985. This is the is the second edition of a study looking at ecology and biogeography with updated chapters including current research. It starts with the with the study of plants to gain an understanding of the complexities of ecological relationships. |
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Page 132
... limit to tree growth , such as the taiga - tundra boundary of Canada , Scandinavia , Northern Russia and Siberia , or an altitudinal limit on mountain sides , marking the point where subalpine communities give way to low - growing ...
... limit to tree growth , such as the taiga - tundra boundary of Canada , Scandinavia , Northern Russia and Siberia , or an altitudinal limit on mountain sides , marking the point where subalpine communities give way to low - growing ...
Page 135
... limits of tree growth . The upper limit of tall , erect tree growth occurring at forest densities is known as the timber - line or waldgrenze . The kampfzone refers to the zone between timber - line and tree - line ( or baumgrenze ) ...
... limits of tree growth . The upper limit of tall , erect tree growth occurring at forest densities is known as the timber - line or waldgrenze . The kampfzone refers to the zone between timber - line and tree - line ( or baumgrenze ) ...
Page 137
... limit tree growth . Only recently has refined research isolated a probable mechanism to explain alpine tree limits . The early theories may be briefly stated as follows : 1. Excessive light . The increase in light intensity with ...
... limit tree growth . Only recently has refined research isolated a probable mechanism to explain alpine tree limits . The early theories may be briefly stated as follows : 1. Excessive light . The increase in light intensity with ...
Contents
Introduction | 3 |
Initial approaches to vegetation study | 12 |
Initial approaches to soil study | 34 |
Copyright | |
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Common terms and phrases
acid agricultural animals approach areas biogeography birch Britain British Isles brown earths bryophyte Cairngorm Calluna cations cent changes chemical clay climatic climax vegetation complex conifers conservation coypus crop cycle deciduous deer disturbance dominant Ecol ecology ecosystem energy environment environmental erosion example factors fire Flandrian forest Forestry Forestry Commission gley soils grass grazing ground flora growth habitat heather herbivores horizon humus important increase influence input insect land landscape layer leached lichen litter mainly methods mineral moorland moors mountain natural nutrients oakwood occur organic parent material pattern peat pest pine pinewood Pinus plant communities podzol pollen population present PRINT#3 production quadrats Quercus Quercus petraea recent region sample Scotland Scots pine Scottish Highlands seed seedlings shrubs slopes species structure surface Table temperature tree-line trees trophic level tropical upland values vegetation wood woodland Zealand zone