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Author:
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ISBN:
Category : Soil surveys
Languages : en
Pages : 214
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Author:
Publisher:
ISBN:
Category : Soil surveys
Languages : en
Pages : 214
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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:
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ISBN:
Category :
Languages : en
Pages : 372
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Book Description
Keys to Soil Taxonomy Twelfth Edition 2014 By Soil Survey Staff (USDA) Keys to Soil Taxonomy, Twelfth Edition, 2014, coincides with the 20th World Congress of Soil Science, to be held on Jeju Island, Korea in June 2014. The 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 soil taxonomy with recent changes in the classification system. The twelfth edition of the Keys to Soil Taxonomy incorporates all changes approved since the publication in 1999 of the second edition of Soil Taxonomy: A Basic System of Soil Classification for Making and Interpreting Soil Surveys. The authors of the Keys to Soil Taxonomy are identified as the "Soil Survey Staff." This term is meant to include all of the soil classifiers in the National Cooperative Soil Survey program and in the international community who have made significant contributions to the improvement of the taxonomic system. The authors plan to continue issuing updated editions of the Keys to Soil Taxonomy as changes warrant new editions. One change in this edition is recognizing the occurrence of anhydrite (CaSO4 ) in soils with the addition of a new diagnostic horizon, a new mineralogy class, and new Anhydritic subgroups for use in soil survey. These are significant improvements to soil taxonomy which resulted from international collaboration with soil scientists of the United Arab Emirates, where the soils with anhydrite were discovered. Pedologists in Argentina have also contributed to this edition with amendments to improve classification of the Mollisols of the Pampean region and to recognize the abrupt textural change in more soils having this important genetic characteristic. This is a re-paperback book version of the "Keys to Soil Taxonomy Twelfth Edition (2014)". Full version, All Chapters included. This publication is available (Electronic version) in the official website of the U.S. Department of Agriculture. Disclaimer: "The use or appearance of U.S. Department of Agriculture (USDA), text, images or logos, Seals on this version does not imply or constitute endorsement of the distribution service."
Author:
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ISBN:
Category :
Languages : en
Pages : 76
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Book Description
Author: Agriculture Department
Publisher: Government Printing Office
ISBN: 9780160923210
Category : Soils
Languages : en
Pages : 372
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Book Description
This publication, Keys to Soil Taxonomy, Twelfth Edition, 2014, coincides with the 20th World Congress of Soil Science, to be held on Jeju Island, Korea in June 2014. The 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 soil taxonomy with recent changes in the classification system. The twelfth edition of the Keys to Soil Taxonomy incorporates all changes approved since the publication in 1999 of the second edition of Soil Taxonomy: A Basic System of Soil Classification for Making and Interpreting Soil Surveys.
Author: Departm U. S. Department of Agriculture
Publisher:
ISBN: 9781410224743
Category : Science
Languages : en
Pages : 336
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Book Description
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 previous eight editions of the Keys to Soil Taxonomy included all revisions of the original keys in Soil Taxonomy: A Basic System of Soil Classification for Making and Interpreting Soil Surveys. The ninth edition of the of the Keys to Soil Taxonomy incorporates all changes approved since the publication of the second edition of Soil Taxonomy. The authors of the Keys to Soil Taxonomy are identified as the "Soil Survey Staff." This term is meant to include all of the soil classifiers in the National Cooperative Soil Survey program and in the international community who have made significant contributions to the improvement of the taxonomic system.
Author: Canadian Agricultural Services Coordinating Committee. Soil Classification Working Group
Publisher: NRC Research Press
ISBN: 9780660174044
Category : Technology & Engineering
Languages : en
Pages : 210
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Book Description
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: U.S. Department of Agriculture
Publisher: Lulu.com
ISBN: 035957324X
Category : Reference
Languages : en
Pages : 372
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Book Description
This publication, Keys to Soil Taxonomy, Twelfth Edition, 2014, coincides with the 20th World Congress of Soil Science, to be held on Jeju Island, Korea in June 2014. The 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 soil taxonomy with recent changes in the classification system. The twelfth edition of the Keys to Soil Taxonomy incorporates all changes approved since the publication in 1999 of the second edition of Soil Taxonomy: A Basic System of Soil Classification for Making and Interpreting Soil Surveys. The authors of the Keys to Soil Taxonomy are identified as the ?Soil Survey Staff.? This term is meant to include all of the soil classifiers in the National Cooperative Soil Survey program and in the international community who have made significant contributions to the improvement of the taxonomic system.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 76
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Book Description
Portrait of a soil scientist. Soil taxoinomy. Its evvolution, status and future. The role of soil classification in technology transfer. The U.S. system of soil taxonomy. From the outside looking in. Impact of soil taxonomy on the National Cooperative soil survey of the united states (1965-1981). A critical evaluation of soil taxonomy and thoughts for future development.
Author: United States. Soil Management Support Services
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 120
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Book Description
