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Author: Kim Kerschen Publisher: ISBN: Category : Languages : en Pages :
Book Description
Soil Taxonomy is the official soil classification system used in the United States and many other countries. Any soil in the world can be classified from the order to the family level using a set of classification keys that are currently in an eleventh edition. The classification system is quite complex and can be too complicated for beginning soil science students to understand and use. Thus, a national advisory working group of the National Cooperative Soil Survey developed an abbreviated guide called the Simplified Guide to Soil Taxonomy. The goal of the simplified guide is to help reduce the complexity of soil taxonomy and aid in the classification of soils from the order to the great group level. The purpose of this study was to evaluate the effectiveness of the simplified guided when used by students in soil science courses to classify soils as compared to traditional methods using the more detailed keys. Classes at Kansas State University were used in the study and included the laboratory sections of AGRON 305 (Soils) and AGRON 515 (Soil Genesis and Classification). Student learning was evaluated using pre and post-test scores, assignments, and evaluation surveys. Results from the fall and spring semesters of AGRON 305 vary based on pre and post test scores and the assignment. Written evaluations indicated that both methods were easy to understand, especially as the lab progressed, but students responded more favorably to the abbreviated descriptions of taxa, pictures, and hyperlinks associated with the simplified guide. The Simplified Guide to Soil Taxonomy can be used in introductory soils courses. However, it is more suited for mid to upper level soil science courses, such as AGRON 515, where students responded favorably to the shorter and more comprehensible descriptions of taxa at the order, suborder, and great group level.
Author: Kim Kerschen Publisher: ISBN: Category : Languages : en Pages :
Book Description
Soil Taxonomy is the official soil classification system used in the United States and many other countries. Any soil in the world can be classified from the order to the family level using a set of classification keys that are currently in an eleventh edition. The classification system is quite complex and can be too complicated for beginning soil science students to understand and use. Thus, a national advisory working group of the National Cooperative Soil Survey developed an abbreviated guide called the Simplified Guide to Soil Taxonomy. The goal of the simplified guide is to help reduce the complexity of soil taxonomy and aid in the classification of soils from the order to the great group level. The purpose of this study was to evaluate the effectiveness of the simplified guided when used by students in soil science courses to classify soils as compared to traditional methods using the more detailed keys. Classes at Kansas State University were used in the study and included the laboratory sections of AGRON 305 (Soils) and AGRON 515 (Soil Genesis and Classification). Student learning was evaluated using pre and post-test scores, assignments, and evaluation surveys. Results from the fall and spring semesters of AGRON 305 vary based on pre and post test scores and the assignment. Written evaluations indicated that both methods were easy to understand, especially as the lab progressed, but students responded more favorably to the abbreviated descriptions of taxa, pictures, and hyperlinks associated with the simplified guide. The Simplified Guide to Soil Taxonomy can be used in introductory soils courses. However, it is more suited for mid to upper level soil science courses, such as AGRON 515, where students responded favorably to the shorter and more comprehensible descriptions of taxa at the order, suborder, and great group level.
Author: Helmut Kohnke Publisher: Waveland Press ISBN: 1478609303 Category : Technology & Engineering Languages : en Pages : 173
Book Description
A concise, inexpensive treatment! Soil Science Simplified, 4/E was written to acquaint students with the basic concepts and scientific principles of soils without the burden of an extensive study. This useful, well-priced handbook includes discussions of soil classification, soil morphology, and soil and the environment. In addition, a chapter on soil surveys helps readers understand soil resources and apply the information presented in soil surveys to managing the soil environment. Outstanding features: 1) provides essential coverage of factors of soil formation; 2) outlines the most current principles of soil taxonomy; 3) provides an assortment of helpful tables, maps, and line drawings; 4) includes an expanded glossary.
Author: Publisher: ISBN: Category : Languages : en Pages : 372
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: Hari Eswaran Publisher: CRC Press ISBN: 1420040367 Category : Science Languages : en Pages : 278
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: Pavel Krasilnikov Publisher: Earthscan ISBN: 1849774358 Category : Technology & Engineering Languages : en Pages : 449
Book Description
Soil classification and terminology are fundamental issues for the clear understanding and communication of the subject. However, while there are many national soil classification systems, these do not directly correlate with each other. This leads to confusion and great difficulty in undertaking comparative scientific research that draws on more than one system and in making sense of international scientific papers using a system that is unfamiliar to the reader. This book aims to clarify this position by describing and comparing different systems and evaluating them in the context of the World Reference Base (WRB) for Soil Resources. The latter was set up to resolve these problems by creating an international 'umbrella' system for soil correlation. All soil scientists should then classify soils using the WRB as well as their national systems. The book is a definitive and essential reference work for all students studying soils as part of life, earth or environmental sciences, as well as professional soil scientists.Published with International Union of Soil Sciences
Author: Milo I. Harpstead Publisher: Wiley-Blackwell ISBN: 9780813815046 Category : Technology & Engineering Languages : en Pages : 220
Book Description
This book is the quintessential tool for understanding our greatest natural resource. For the teacher or student of earth science, agriculture, or land management; for the farmer with a thousand acres; or for the gardener with one precious plot, Soil Science Simplified offers a thorough and very readable look at soil--its formation, components, chemistry, fertility, and erosion. From the complexities of how water, temperature, and soil fertility affect the life of plants to the technical aspects of soil classification, engineering, surveying, and management, all of soil science is clearly laid out in this new edition. The authors have expanded their discussions of soil water, temperature, and engineering and have updated their account of soil classification. With an eye to readers here and abroad and to the variety of applications for their book, they use both English and metric units of measurement.
Author: Stanley W. Buol Publisher: John Wiley & Sons ISBN: 0470960590 Category : Technology & Engineering Languages : en Pages : 543
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: Natural Resources Conservation Service Publisher: Government Printing Office ISBN: 9780160854279 Category : Business & Economics Languages : en Pages : 348
Book Description
11th edition. Incorporates all changes approved since publication of the tenth edition in 2006. Provides the taxonomic keys necessary for the classification of soils in a form that can be used easily in the field. Acquaints users of the taxonomic system with recent changes in the system.
Author: Kim Kerschen
Author: Kim Kerschen
Author: Helmut Kohnke
Author: 
Author: 
Author: Hari Eswaran
Author: Gerald W. Olson
Author: Pavel Krasilnikov
Author: Milo I. Harpstead
Author: Stanley W. Buol
Author: Natural Resources Conservation Service