Submicroscopic Studies of Soils PDF Download

Author:
Publisher: Elsevier
ISBN: 0080869807
Category : Science
Languages : en
Pages : 375

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Submicroscopic Studies of Soils

Author: E. B. A. Bisdom
Publisher:
ISBN:
Category :
Languages : en
Pages : 356

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Author: N. Ahmad
Publisher: Elsevier
ISBN: 0080543529
Category : Technology & Engineering
Languages : en
Pages : 566

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Book Description
Vertisols, one of the eleven established soil orders, are clay soils with unusual and interesting properties. They cover more than 350 million hectares of land in the world and in tropical Africa alone there are over 100 million hectares. Because of their very small particle size and high surface area, these soils have higher physical and chemical reactivity than other soils. Their interaction with agrochemicals/industrial wastes, has been, increasingly, the subject of research especially in the last two decades. Vertisols create special problems when used for engineering purposes. This book is intended to provide comprehensive and state-of-the-art information about Vertisols worldwide. Special attention is given to the use and management of soils such as fertilizer use, crop selection, soil tillage, water restriction on land including irrigation, and soil erosion. A special chapter has been added to deal with geotechnical engineering of Vertisols. Vertisols have great potential for agricultural production but many, especially in the developing world, are underutilized due to a lack of understanding regarding their behaviour and management. This book is written by leading scientists worldwide. It is expected that this monograph will be of great use to soil scientists and agronomists, graduate and senior graduate students. Improvement of their management may solve the current food deficiency in the world.

Author: G.S. Campbell
Publisher: Elsevier
ISBN: 0080869823
Category : Science
Languages : en
Pages : 167

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This book covers material taught in a graduate-level soil physics course at Washington State University. While most soil physics courses dwell mainly on deriving rather than solving the differential equations for transport, the author's approach is to focus on solutions. Graduate students in agricultural and biological sciences usually have a good working knowledge of algebra and calculus, but not of differential equations. In order to teach methods for solving very difficult differential equations with difficult boundary conditions using fairly simple mathematical tools, the author uses numerical procedures on microcomputers to solve the differential equations. Numerical methods convert differential equations into algebraic equations which can be solved using conventional methods of linear algebra.This book reflects the philosophy used in the course. Each chapter introduces soil physics concepts, generally in the conventional way. Most chapters then go on to develop simple computer programs to solve the equations and illustrate the points made in the discussion. Problems at the end of each chapter help the reader practice using the concepts introduced in the chapter. The problems and computer programs are an integral part of the presentation, and readers are strongly encouraged to experiment with each model until both the working of the model and the concepts it teaches are familiar. Although the programs are generally short and relatively simple, they are suitable for use as submodels in large, general-purpose models of the soil-plant-atmosphere system, and have been used in this way by the author and by several of his students.Teachers and students alike will welcome this new textbook. It will enable graduate students to understand and solve transport problems which exist in field situations, and will provide them with a good working knowledge of soil physics - fundamental to so many other areas in soil, plant and engineering sciences.

Author: P. Koorevaar
Publisher: Elsevier
ISBN: 0080869815
Category : Science
Languages : en
Pages : 243

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Book Description
Elements of Soil Physics

Author: A.J. Ringrose-Voase
Publisher: Elsevier
ISBN: 0080869904
Category : Science
Languages : en
Pages : 901

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Book Description
The papers in this volume cover micromorphological studies of a wide variety of topics, at various scales from ultramicro- to mesoscopic. Topics included are:soil management; soil structure; surface crusts; hardpans and cemented layers; soil biota; soil genesis; hydromorphic soils; paleosols; archeology; and general pedology. The range of papers reflects the growing use of soil micromorphology in understanding soil problems in land-use and the increasing use of quantitative techniques, together with more traditional applications in pedology. The book is well illustrated with micrographs and contains both author and keyword indices.

Author:
Publisher: Elsevier
ISBN: 0080869912
Category : Science
Languages : en
Pages : 401

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This book deals with the conservation and improvement of the forest soil. Much emphasis is placed on the use of vegetation in soil conservation afforestation. The first part of the book focuses on the issues of soil erosion and methods of erosion control, in particular the protection of agricultural and forest soils. The main types and manifestations of erosion, (mainly water and wind erosion), are specified and described. Different erosion factors are shown in detail, including the possibilities of qualitative and quantitative determination. Special attention is paid to the precipitation-to-runoff relationships and information on these factors is used for erosion analysis. A detailed review of the regularities of water and wind erosion and the possibilities of the modelling thereof is also presented. In the second part of the book the main emphasis is on the management and control of the destructive action of torrents. Other topics covered include gully control and stabilization, the increase in landslides and management of landslide areas. Students of agriculture specialising in soil improvement will welcome this book, as will all readers interested in the conservation of the forest environment.

Author: April L. Ulery
Publisher: ASA-CSSA-SSSA
ISBN: 9780891188469
Category : Technology & Engineering
Languages : en
Pages : 550

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Book Description
The latest installment in the well-received Methods of Soil Analysis series, Methods of Soil Analysis. Part 5. Mineralogical Methods, presents valuable techniques that will enable researchers to analyze mineralogy for a wide variety of applications. An understanding of mineralogical composition provides crucial insight into the fundamental behavior of soils and their response to environmental conditions and management. Highlights include extensive coverage of new techniques, such as X-ray absorption and diffuse reflectance spectroscopy, and updated chapters on thermal analysis and selective dissolution methodologies. Each chapter provides the basic principles of the method, guides the reader through the method itself, and finally assists in the interpretation and analysis of results collected.

Author:
Publisher: Academic Press
ISBN: 008056349X
Category : Technology & Engineering
Languages : en
Pages : 477

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Book Description
Advances in Agronomy

Author: Rattan Lal
Publisher: CRC Press
ISBN: 1000031411
Category : Technology & Engineering
Languages : en
Pages : 2804

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Book Description
New and Improved Global Edition: Three-Volume Set A ready reference addressing a multitude of soil and soil management concerns, the highly anticipated and widely expanded third edition of Encyclopedia of Soil Science now spans three volumes and covers ground on a global scale. A definitive guide designed for both coursework and self-study, this latest version describes every branch of soil science and delves into trans-disciplinary issues that focus on inter-connectivity or the nexus approach. For Soil Scientists, Crop Scientists, Plant Scientists and More A host of contributors from around the world weigh in on underlying themes relevant to natural and agricultural ecosystems. Factoring in a rapidly changing climate and a vastly growing population, they sound off on topics that include soil degradation, climate change, soil carbon sequestration, food and nutritional security, hidden hunger, water quality, non-point source pollution, micronutrients, and elemental transformations. New in the Third Edition: Contains over 600 entries Offers global geographical and thematic coverage Entries peer reviewed by subject experts Addresses current issues of global significance Encyclopedia of Soil Science, Third Edition: Three Volume Set expertly explains the science of soil and describes the material in terms that are easily accessible to researchers, students, academicians, policy makers, and laymen alike. Also Available Online This Taylor & Francis encyclopedia is also available through online subscription, offering a variety of extra benefits for researchers, students, and librarians, including: Citation tracking and alerts Active reference linking Saved searches and marked lists HTML and PDF format options Contact Taylor and Francis for more information or to inquire about subscription options and print/online combination packages. US: (Tel) 1.888.318.2367; (E-mail) [email protected] International: (Tel) +44 (0) 20 7017 6062; (E-mail) [email protected]