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 48
... soil is known as the capillary potential or pF value . The drier the soil the higher the pF value . At field capacity the pF will be about 3.0 , at the wilting coefficient it is 4-2 and for an over - dry soil the value is 7.0 ( Fig ...
... soil is known as the capillary potential or pF value . The drier the soil the higher the pF value . At field capacity the pF will be about 3.0 , at the wilting coefficient it is 4-2 and for an over - dry soil the value is 7.0 ( Fig ...
Page 59
Nigel Pears. Hodgson , J. M. ( ed . ) , 1974. Soil Survey Field Handbook , Technical Monograph No. 5 , Soil Survey of England and Wales , Harpenden . Huggett , R. J. , 1982. ' Models and spatial patterns of soils ' , In Principles and ...
Nigel Pears. Hodgson , J. M. ( ed . ) , 1974. Soil Survey Field Handbook , Technical Monograph No. 5 , Soil Survey of England and Wales , Harpenden . Huggett , R. J. , 1982. ' Models and spatial patterns of soils ' , In Principles and ...
Page 285
Nigel Pears. SOIL SURVEY AND MAPPING The most comprehensive accounts of British soils are contained in the Regional Memoirs produced by the Soil Survey of England and Wales . They describe soils and their properties from the viewpoint of ...
Nigel Pears. SOIL SURVEY AND MAPPING The most comprehensive accounts of British soils are contained in the Regional Memoirs produced by the Soil Survey of England and Wales . They describe soils and their properties from the viewpoint of ...
Contents
Introduction | 3 |
Initial approaches to vegetation study | 12 |
Initial approaches to soil study | 34 |
Copyright | |
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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