Author: Trevor Haddon Webb
Publisher: Manaaki Whenua Press
ISBN: 9780478347289
Category : Soils
Languages : en
Pages : 0
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Book Description
Soils need to be classified so they can be identified and mapped. The classification of soils in New Zealand is described in two publications in the Landcare Research Science Series: The New Zealand Soil Classification (Hewitt 2010) and this new report by Webb and Lilburne, Criteria for defining the soil family and soil sibling. The New Zealand Soil Classification classifies NZ soils into 15 soil orders, each of which is divided successively into soil groups and subgroups; this provides an important framework to understand the occurrence and broad properties of soils in the landscape. Criteria for defining the soil family and soil sibling defines the next two levels of classification: soil families and siblings. The sibling is the primary entity depicted on soil maps. Families and siblings separate soils into well defined classes that define each soil's physical composition. The family criteria separate soils on the basis of three criteria: the nature of the soil profile material to 1.0 metre depth, the dominant texture in the upper 0.6 m, and minimum permeability within 1.0 m depth. The sibling criteria separate soils mainly according to the composition of horizons that make up the soil profile.
Author: Hari Eswaran
Publisher: CRC Press
ISBN: 1420040367
Category : Science
Languages : en
Pages : 278
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Book Description
Developments in soil classification have accompanied parallel progress in our understanding of the soil system. However the theories behind the classifications and the purposes for which they were created have changed over time. The editors hope that this comprehensive synthesis will help to rally soil scientists around the world to develop an acce
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9789251055212
Category : Technology & Engineering
Languages : en
Pages : 116
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Book Description
Soils are affected by human activities, such as industrial, municipal and agriculture, that often result in soil degradation and loss. In order to prevent soil degradation and to rehabilitate the potentials of degraded soils, reliable soil data are the most important prerequisites for the design of appropriate land-use systems and soil management practices as well as for a better understanding of the environment. The availability of reliable information on soil morphology and other characteristics obtained through examination and description of the soil in the field is essential, and the use of a common language is of prime importance. These guidelines, based on the latest internationally accepted systems and classifications, provide a complete procedure for soil description and for collecting field data. To help beginners, some explanatory notes are included as well as keys based on simple test and observations.--Publisher's description.
Author: Benjamin Clayden
Publisher:
ISBN: 9780708403600
Category : Soil profiles
Languages : en
Pages : 159
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Book Description
Author: Stanley W. Buol
Publisher: John Wiley & Sons
ISBN: 0470960590
Category : Technology & Engineering
Languages : en
Pages : 543
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Book Description
Soil Genesis and Classification, Sixth Edition, builds on the success of the previous editions to present an unparalleled resource on soil formation and classification. Featuring a color plate section containing multiple soil profiles, this text also includes information on new classification systems and emerging technologies and databases with updated references throughout. Covering the diverse needs of both the academic and professional communities, this classic text will be a must have reference for all those in soil science and related fields.
Author: Charles W. Finkl
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 424
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Book Description
Early classification efforts; Principles and units of classification; General classification efforts; Limited or regional approaches; Special approaches; Soil correlation.
Author: Delvin Seymour Fanning
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 428
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Book Description
Concepts and definitions of soil; terminology and relationships between segments of the earth's crust; ABC system of horizon nomenclature; introduction to ways of thinking about and studying soil genesis; mineral and organic matter transformation; eluviation and illuviation and closely related processes (diffusion, wicking); phyto- and other biocycling; pedoturbation and soil structure formation; erosion, alluvation and other additions to soils; sulfidization and sulfuricization; salinization, solonization, and solodization; calcification; lessivage; podzolization; latosolization and lateritization; gleization; general principles and kinds of soil classification systems; soil classification in the past - roots and philosophies; history leading to the development of soil taxonomy; pedons and polypedons and their relationship to mapping delineations; soil taxonomy: epipedons; diagnostic subsurface horizons; pans and plinthite; proposed special diagnostic characteristics for highly man-influenced soils; other characteristics and terms used in defining mineral soils and classes of them; dignostic criteria for organic soils; general view of division of soils into orders; entisols; vertisols; inceptisols; aridisols; mollisols; spodosols; alfisols; ultisols; oxisols; histosols; the factors of soil formation - overview; soils in relation to their parent material; soils in relation to their age; soils in relation to climate; soils in relation to organisms other than man; effects of man; soils in relation to topography; minerals and mineral stabilities; overview for water movement in soils and soil genetic effects; subgroups of udorthents and classification of some highly man-influenced soils; textural triangles.
Author: B. E. Butler
Publisher: Oxford University Press, USA
ISBN:
Category : Language Arts & Disciplines
Languages : en
Pages : 152
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Book Description
The physicochemical processes of pedogenesis. Pedogenesis. The basisof soil classification.
Author: Ellis G. Knox
Publisher:
ISBN:
Category : Soils
Languages : en
Pages : 28
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Book Description
Author: Food and Agriculture Organization of the United Nations. Soil Resources, Development and Conservation Service
Publisher: Bernan Press(PA)
ISBN:
Category : Science
Languages : en
Pages : 76
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Book Description
