Overview

Volcanic eruptions are generally viewed as agents of destruction, yet they provide the parent materials from which some of the most productive soils in the world are formed. The high productivity results from a combination of unique physical, chemical and mineralogical properties. The importance and uniqueness of volcanic ash soils are exemplified by the recent establishment of the Andisol soil order in Soil Taxonomy. This book provides a comprehensive synthesis of all aspects of vocanic ash soils. It contains in-depth coverage of topics including terminology, morphology, genesis, classification, mineralogy, chemistry, physical properties, productivity and utilization. A wealth of data (37 tables, 81 figures, and Appendix) mainly from the Tohoku University Andisol Data Base is used to illustrate major concepts. Twelve colour plates provide a visual-aid and complement the text description of the world-wide distribution for volcanic ash soils. This volume should be a useful reference for soil scientists, plant scientists, ecologists and geochemists interested in biogeochemical processes occurring in soils derived from volcanic ejecta.

Full Product Details

Author:   S. Shoji (Faculty of Agriculture, Tohoku University, Sendai, Japan) ,  M. Nanzyo (Faculty of Agriculture, Tohoku University, Sendai, Japan) ,  R.A. Dahlgren (Land, Air & Water Research, University of California, Davis, CA, USA)
Publisher:   Elsevier Science & Technology
Imprint:   Elsevier Science Ltd
Volume:   v. 21
Dimensions:   Width: 15.90cm , Height: 1.30cm , Length: 24.10cm
Weight:   0.640kg
ISBN:  

9780444897992

ISBN 10:   0444897992
Pages:   296
Publication Date:   06 January 1994
Audience:   Professional and scholarly ,  Professional & Vocational
Format:   Hardback
Publisher's Status:   Active
Availability:   Manufactured on demand  
We will order this item for you from a manufactured on demand supplier.

Table of Contents

Plates. Preface. Acknowledgements. The Authors. 1. Terminology, Concepts and Geographic Distribution of Volcanic Ash Soils. Terminology. Central concepts. Geographic distribution of volcanic ash soils. 2. Morphology of Volcanic Ash Soils. Introduction. Morphological characteristics. Examples of profile morphology. 3. Genesis of Volcanic Ash Soils. Introduction. Formation of Andisols. Transition of Andisols to other soil orders. 4. Classification of Volcanic Ash Soils. Introduction. Classification of Andisols. Classification of Andisols in the FAO/Unesco Soil Map of the World. National classifications of volcanic ash soils. 5. Mineralogical Characteristics of Volcanic Ash Soils. Introduction. Volcanic ash as a parent material. Colloidal constituents common to volcanic ash soils. Formation and transformation of colloidal constituents. 6. Chemical Characteristics of Volcanic Ash Soils. Introduction. Inorganic constituents. Organic constituents. Metal humus complexes. Physico-chemical properties. 7. Physical Characteristics of Volcanic Ash Soils. Introduction. Soil color. Soil texture. Soil structure. Soil consistence. Bulk density and porosity. Water retention and plant available water. Water permeability. Irreversible changes in soil physical properties with drying. 8. Productivity and Utilization of Volcanic Ash Soils. Introduction. Soil productivity. Chemical properties relating to soil productivity. Physical properties relating to soil productivity. Utilization and management of volcanic ash soils in Japan. Appendix 1. Description and selected properties of Tsukuba soil, Findley Lake soil, Abashiri soil, and Yunodai soil. Appendix 2. Andisol TU database. Appendix 3. Selected thermodynamic data and uncertainties used in modeling mineral stability relationships in Fig. 5.12. Appendix 4. Reactions and equilibrium constants (25°C) used modeling stability relationships in Fig. 5.12. References Index. Subject Index.

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