Jean-Paul Legros

Major Soil Groups of the World (eBook, PDF)

Ecology, Genesis, Properties and Classification

• Format: PDF

Produktbeschreibung

This profusely illustrated book gives an exhaustive account of the principal types of soils of our planet. The "progressive descent of weathering fronts" model, recognized and used by eminent international scientists is the guiding principle of choice to link the observations and to give the reader a synthetic and coherent view of the differentiation of soils. In each case, the introductory reminders summarize the physicochemical and mineralogical principles necessary for understanding the text. The nomenclatures rely systematically and simultaneously on the two most commonly used classifications: Soil Taxonomy and World Reference Base. This reference manual is aimed at students of the undergraduate and graduate courses, but is also intended for workers and scientists in this subject area (geologists, pedologists, agronomists, land-use planners, foresters, etc.) as well as for all those concerned with or interested in protection of the environment.

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Produktdetails

• Verlag: Taylor & Francis
• Seitenzahl: 478
• Erscheinungstermin: 20. September 2012
• Englisch
• ISBN-13: 9781466502437
• Artikelnr.: 40067751

Autorenporträt

Jean-Paul Legros

Inhaltsangabe

Definitions, Concepts and Tools: Basic concepts. Methods for study of
pedogenesis. Dating and tracing.
Factors of Pedogenesis: Climate. Rocks. Time and age of soils.
Geomorphology and surface formations. Vegetation and humus; Soil fauna and
microorganisms. Man.
Progressive Descent of Weathering Fronts, Other Pedogenetic Mechanisms and
Spatial Organization of Soils: Vertical differentiation of soils.
Mechanisms of evolution of soils. Mineralogical evolution of clays. Attempt
at modelling. Organization of soils at all scales.
Classifications: International WRB and US Soil Taxonomy: Historical review.
World Reference Base for Soil Resources (WRB). The American classification
(Soil Taxonomy).
Ferralsols and Other Soils of the Hot Regions: Generalities. Typical
profile and differentiation. Duration of pedogenesis. Ecology and
classification; Evolution of ferrallitic environments. Land use.
Vertisols: Typical profile and differentiation. Ecology and typology.
Functioning. Genesis. Classification. Evolution/degradation of Vertisols.
Return to the weathering-front model. Utilization of Vertisols.
Calcisols and Other Soils On Carbonate-Bearing and Sulphate-Bearing
Materials: Generalities. Distribution of calcareous and Ca-saturated soils.
Decarbonatation phenomena; Accumulation phenomena. Typology and
classification. Utilization of calcareous soils
Cambisols, Luvisols and Planosols: Fundamental mechanisms of development.
Development of the profiles. Typology and classification; Ecology and
duration of pedogenesis. Conservation and utilization.
Red Soils of the Mediterranean and Dry Tropical Zones: Soil sequences in
the Rhône valley. Ecology of the red soils. Classification and typology.
Utilization of the soils
Andosols: Principal features and ecology. The 'amorphous materials' in
Andosols. Genesis of Andosols. Properties of Andosols. Typology and
classification. Protection and utilization.
Podzolic Soils: Morphology and properties of podzolic soils. Ecology.
Genesis of Podzols. Typology and classification; Utilization of podzolic
soils.
Gleysols, Stagnosols and Histosols: Oxidation-reduction phenomena. Dynamics
of iron in presence of excess water. Evolution of organic matter when
excess water is present. Gleysols and Stagnosols. Marshes and peatlands.
Mangrove swamps. Rice paddies.
Saline Soils: Solonchaks and Solonetz: Expression of salinity. Origin of
soil salinity. Properties of saline soils. Dynamics of salts. Evolution and
typology of saline soils. Elements of land reclamation. Brief glossary for
saline soils.Chernozems. General Conclusions: The Chernozem. General
conclusions.