Basic BiogeographyBasic considerations. Introduction. Inital approaches to vegetation study. Inital approaches to soil study. Plant dynamics and the nature of vegetation. Ecosystems. Ecological factors and environmental variations. distubed ecosystems. Selected examples from the British Isles. The vegetation. The soils. The impact of man. |
From inside the book
Results 1-3 of 52
Page 14
... structure : the set of life - forms found in a plant community and their spatial arrangement constitute the primary morpho- logical feature of that vegetation and bestow upon it a more or less definite structure . Strictly speaking ...
... structure : the set of life - forms found in a plant community and their spatial arrangement constitute the primary morpho- logical feature of that vegetation and bestow upon it a more or less definite structure . Strictly speaking ...
Page 33
... structure . The colloids of clay and organic matter bind together the other soil constituents to form aggregates . A natural soil aggregate is known as a ped . Structure refers to the type of aggregate formed by soil particles within ...
... structure . The colloids of clay and organic matter bind together the other soil constituents to form aggregates . A natural soil aggregate is known as a ped . Structure refers to the type of aggregate formed by soil particles within ...
Page 231
... structure . Many soils now suffer from a lack of organic matter and their structure has been badly altered by the use of heavy machinery in unsuitable conditions . This has accentuated to a marked degree the drainage problems on many ...
... structure . Many soils now suffer from a lack of organic matter and their structure has been badly altered by the use of heavy machinery in unsuitable conditions . This has accentuated to a marked degree the drainage problems on many ...
Contents
Introduction | 3 |
Initial approaches to vegetation study | 11 |
Initial approaches to soil study | 28 |
Copyright | |
9 other sections not shown
Other editions - View all
Common terms and phrases
acidic agricultural animals approach areas become biogeography birch Britain British Isles brown earths Cairngorm Cairngorm Mountains Calluna changes chemical clay climatic climax community climax vegetation complex 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 Highlands 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 spread stage structure surface Table temperature timber-line tree-line upland usually variations vegetation whilst wood woodland zone