Author : Hari Eswaran
Publisher : CRC Press
Page : 278 pages
File Size : 33,79 MB
Release : 2002-12-26
Category : Science
ISBN : 1420040367
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 : S. W. Buol
Publisher : Iowa State Press
Page : 376 pages
File Size : 44,47 MB
Release : 1973
Category : Technology & Engineering
ISBN :
Morphology of soils; Soil micromorphology; Soil composition and characterization; Weathering and soil formation; Pedogenic processes: internal, soil-building processes; Soil environment: External factors of soil formation; Parent material: initial material of the solum; Relief and landscape factors of the soil and its environment; Contributions of climate to the total soil environment; Organisms: biological portion of the soil and its environment; Time as a factor of soil formation; Principles and historical development of soil classification; Modern soil classification systems; Entisols:recently formed soils: Vertisols: shrinking and swelling dark clay soils; In ceptisols: emleryonic soils with few diagnostic features; Aridisols: soils of arid regions; Mollisols: grassland soils of steppes and prairies; Spodosols: soils with subsoil, accumulations of sesquioxide and humus; Alfisols:high base status soils; Ultisols: low base status forest soils: Oxisols: sesquioxide - rihch, highly weathered soils of the intertropical regions; Histosols: organic soils.
Author :
Publisher :
Page : 56 pages
File Size : 20,59 MB
Release : 1999
Category : Soil animals
ISBN :
Author : United States. Soil Conservation Service
Publisher :
Page : 214 pages
File Size : 21,25 MB
Release : 1960
Category : Soils
ISBN :
Author : United States. Soil Conservation Service
Publisher :
Page : 16 pages
File Size : 42,89 MB
Release : 1975
Category : Soil surveys
ISBN :
Author : Canadian Agricultural Services Coordinating Committee. Soil Classification Working Group
Publisher : NRC Research Press
Page : 210 pages
File Size : 12,33 MB
Release : 1998
Category : Technology & Engineering
ISBN : 9780660174044
This treatise begins with an introduction on the history of soil classification in Canada and discussion of the rationale for soil taxonomy. It then defines such terms as soil, pedon, and soil horizons before outlining the classification system along with identification keys. Chapters 4 through 13 describe the characteristics of the various soil orders and include information on distinguishing soils of one order from soils of other orders. Chapter 14 outlines criteria & guidelines used in differentiating classes in soil families and soil series categories. Chapter 15 provides information on distinguishing soil phases. Chapter 16 correlates Canadian soil taxonomy with other classification systems. Chapter 17 summarizes the main terminology used to describe soils at the landscape and pedon scales. The final chapter provides a system of landform classification for soil mapping.
Author : Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
Page : 116 pages
File Size : 29,86 MB
Release : 2006
Category : Technology & Engineering
ISBN : 9789251055212
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 : Pedro A. Sanchez
Publisher : Cambridge University Press
Page : 685 pages
File Size : 49,57 MB
Release : 2019-01-10
Category : Business & Economics
ISBN : 1107176050
Long-awaited second edition of classic textbook, brought completely up to date, for courses on tropical soils, and reference for scientists and professionals.
Author : U. S. Department of Agriculture
Publisher : www.Militarybookshop.CompanyUK
Page : 346 pages
File Size : 15,25 MB
Release : 2010-10
Category : Technology & Engineering
ISBN : 9781782662105
The publication Keys to Soil Taxonomy serves two purposes. It provides the taxonomic keys necessary for the classification of soils in a form that can be used easily in the field. It also acquaints users of the taxonomic system with recent changes in the system. The eleventh edition of the Keys to Soil Taxonomy incorporates all changes approved since the publication of the second edition of Soil Taxonomy: A Basic System of Soil Classification for Making and Interpreting Soil Surveys (1999). One of the most significant changes in the eleventh edition is the addition of the suborders Wassents and Wassists for subaqueous Entisols and Histosols.
Author : Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
Page : 203 pages
File Size : 43,37 MB
Release : 2018-07-20
Category : Technology & Engineering
ISBN : 925108369X
This publication is a revised and updated version of World Soil Resources Reports No. 84 and 103 and presents the international soil classification system. Every soil in the world can be allocated to one of the 32 Reference Soil Groups as defined in this document, and can further be characterized by a set of qualifiers. The resulting soil name provides information on soil genesis, soil ecological function and soil properties relevant for land use and management. The same system, refined slightly, may be used to name the units of soil map legends, thereby providing comprehensive spatial information. By accommodating national soil classification systems, the World Reference Base facilitates the worldwide correlation of soil information.
