Strength of Low and Variable Charge Soils PDF Download
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Author: Glaucio Roloff
Publisher:
ISBN:
Category :
Languages : en
Pages : 250
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Book Description
Author: Glaucio Roloff
Publisher:
ISBN:
Category :
Languages : en
Pages : 250
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Book Description
Author: T. R. Yu
Publisher: Oxford University Press
ISBN: 0195357035
Category : Science
Languages : en
Pages : 518
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Book Description
This book, based on research carried out at the Academia Sinica over the past 30 years, explains the basic difference between the variable charge soils of tropical and subtropical regions, and the constant charge soils of temperate regions. It will focus on the chemical properties of the variable charge soils--properties which have important bearing on soil management practices, including maximizing soil productivity and combating soil pollution.
Author: W.E. Larson
Publisher: Springer Science & Business Media
ISBN: 9400924216
Category : Nature
Languages : en
Pages : 272
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Book Description
Agricultural soils are subjected to many applied mechanical stresses that influence their behavior. Stresses arise from tillage machines, seeders and chemicals applicators, tractors, and equipment for harvest and transport. Applied stresses may compact or loosen the bulk soil. Micro sections of soil (aggregates or clods) may be compacted during tillage while the bulk soil is loosened. Because most granular soils are combined into structural units of varying sizes with different strengths and properties, prediction of the effect of stresses on the behavior of bulk soils is difficult. The basic strength properties of soil are determined by many fac tors: the size distribution of particles, chemical and mineralogical properties of inorganic clay fraction, the organic matter content and composition, the water content and the stress history. These factors combine and interact to produce many possible behavior patterns. Changes in structure of the soil from applied stresses and biologi cal reactions may profoundly influence storage and transmission of water, heat, and air, and the mechanical resistance to penetration by plant roots. They may also affect the traction of vehicles. Manipulation of structural properties of soils by tillage implements is a major cost under most crop production systems. Reduced energy use is also a significant conservation objective. Improved management systems are very dependent upon a better understanding of soils' response to applied stresses. The content of this book resulted from a NATO Advanced Research Workshop held in St. Paul, Minnesota, U.S.A. September 13-16, 1988.
Author: Jianming Xu
Publisher: Springer Science & Business Media
ISBN: 9400741774
Category : Science
Languages : en
Pages : 516
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Book Description
Based on the “International Symposium of Molecular Environmental Soil Science at the Interfaces in the Earth’s Critical Zone,” this book focuses on the Critical Zone supporting life at the Earth’s surface with emphasis on the new and emerging subject area of molecular environmental soil science. Advances in research methodology, the use of synchrotron radiation in particular, are extensively reviewed. Roles of microbes, biomolecules, and environmental nanoparticles in mineral transformations, metal cycling, degradation of natural and anthropogenic organic compounds are also extensively reviewed. It is unique in terms of facilitating the integration of contributions from traditionally separate disciplines and adding a molecular and nanoparticle (therefore chemical) dimension to a field of endeavour that has traditionally been viewed on a different scale (dimension). It will also contribute to identifying knowledge gaps, providing future research directions and promoting research and education at the molecular level in this extremely important and challenging area of science for years to come. The IUPAC Project Committee noted that the Conference identifies, and builds on, the need to view and understand the Critical Zone at the molecular level. The book will be an invaluable reference for research and education.
Author: J. Barrow
Publisher: Springer Science & Business Media
ISBN: 9400936672
Category : Nature
Languages : en
Pages : 200
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Book Description
Author: M. J. T. Norman
Publisher: Cambridge University Press
ISBN: 9780521422642
Category : Science
Languages : en
Pages : 442
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Book Description
Retaining the successful formula of the first edition while placing additional emphasis on tropical environmental conservation, this new updated edition considers the response of tropical food crops to environmental factors such as climate, soil and farming system.
Author: Malcolm E. Sumner
Publisher: CRC Press
ISBN: 9780849331367
Category : Technology & Engineering
Languages : en
Pages : 2240
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Book Description
The Handbook of Soil Science provides a resource rich in data that gives professional soil scientists, agronomists, engineers, ecologists, biologists, naturalists, and their students a handy reference about the discipline of soil science. This handbook serves professionals seeking specific, factual reference information. Each subsection includes a description of concepts and theories; definitions; approaches; methodologies and procedures; tabular data; figures; and extensive references.
Author: Rattan Lal
Publisher: CRC Press
ISBN: 1498738931
Category : Technology & Engineering
Languages : en
Pages : 2795
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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]
Author: P. Lavelle
Publisher: Springer Science & Business Media
ISBN: 0306481626
Category : Science
Languages : en
Pages : 678
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Book Description
A number of excellent textbooks on general ecology are currently available but‚ to date‚ none have been dedicated to the study of soil ecology. This is important because the soil‚ as the ‘epidermis’ of our planet‚ is the major component of the terrestrial biosphere. In the present age‚ it is difficult to understand how one could be interested in general ecology without having some knowledge of the soil and further‚ to study the soil without taking into account its biological components and ecological setting. It is this deficiency that the two authors‚ Patrick Lavelle and Alister Spain‚ have wished to address in writing their text. A reading of this work‚ entitled ‘Soil Ecology’‚ shows it to be very complete and extremely innovative in its conceptual plan. In addition‚ it follows straightforwardly through a development which unfolds over four substantial chapters. Firstly‚ the authors consider the soil as a porous and finely divided medium of b- organomineral origin‚ whose physical structure and organisation foster the development of a multitude of specifically adapted organisms (microbial communities‚ roots of higher plants‚ macro-invertebrates).
Author:
Publisher: Academic Press
ISBN: 0128048441
Category : Technology & Engineering
Languages : en
Pages : 245
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Book Description
Advances in Agronomy continues to be recognized as a leading reference and a first-rate source for the latest research in agronomy. Each volume contains an eclectic group of reviews by leading scientists throughout the world. As always, the subjects covered are rich and varied and exemplary of the abundant subject matter addressed by this long-running serial. Includes numerous, timely, state-of-the-art reviews Features distinguished, well recognized authors from around the world Builds upon this venerable and iconic review series Covers the extensive variety and breadth of subject matter in crop and soil sciences
