Description |
xii,287 pages : illustrations, maps ; 24 cm |
Contents |
1. Geography and soils -- 1.1 Physical geography and soils -- 1.2 Soils and human geography -- 1.3 Soils and geographical method -- 1.4 Conclusions about soils and geography -- 2. The mineral fraction of the soil -- 2.1 The classification of particle sizes -- 2.2 The coarse fraction -- 2.3 Sand -- 2.4 Silt -- 2.5 Clays -- 3. Soil organic matter -- 3.1 Supply of organic matter to the soil -- 3.2 Breakdown of organic matter in the soil by macrofauna -- 3.3 Biochemical compounds in soil organic matter -- 3.4 Humus -- 3.5 Peat -- 4. Soil structure and porosity -- 4.1 Soil structure -- 4.2 Porosity -- 5. Physical properties of the soil -- 5.1 Introduction -- 5.2 Soil water -- 5.3 Soil temperatures -- 5.4 Soil air -- 6 Chemical properties of the soil -- 6.1 Oxidation-reduction processes -- 6.2 Ion exchange -- 6.3 Soil acidity -- 6.4 Interaction of organic matter with metals, oxides, and clays -- 6.5 Iron, aluminium, and silica -- 6.6 Potassium, calcium, and magnesium -- 6.7 Nitrogen, phosphorus and sulphur -- 6.8 Micronutrients -- 6.9 Sodium chloride and associated salts -- 7. Soil mechanical properties -- 7.1 Bulk density -- 7.2 Soil strength -- 7.3 Swelling and dispersion -- 7.4 Shrinkage and fissuring -- 7.5 Consistency or Atterberg limits -- 7.6 Compaction -- 7.7 Brittleness -- 7.8 Cementation of iron concretions -- 7.9 Induration -- 8. Soil colour -- 8.1 The influence of colour on other soil characteristics -- 8.2 Description of soil colour -- 8.3 Sources of pigments in soil colours -- 8.4 Influence of other soil properties on soil colour -- 8.5 Significance of soil colour -- 8.6 Soil colour and man in contact with the earth |
Notes |
Includes index |
Bibliography |
Bibl.: pages 229-270. - Index |
Performer |
ISBN 0-416-71540-0 Pbk : \5.50 |
Subject |
Agricultural geography.
|
|
Soil geography.
|
|
Soil mechanics.
|
|
Soil science.
|
|
Soils -- Composition.
|
|
Soils.
|
|
Soil geography |
|
Soil science |
ISBN |
0416715400 |
|
0416753809 |
|