Soil Colloids and Their Associations in Aggregates

Soil Colloids and Their Associations in Aggregates PDF Author: Marcel F. De Boodt
Publisher: Springer Science & Business Media
ISBN: 1489926119
Category : Science
Languages : en
Pages : 598

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Book Description
S. Henin Versailles, France It was a pleasure for me to take part in the NATO Advanced Study Workshop for studies of 'Soil Colloids and their Associations in Soil Aggregates'. The meeting provided me with a welcome opportunity to renew acquaintances with respected colleagues in the various fields of Soil Science, to listen to their presentations, and be involved in discussions which were at the frontiers of the science which deals with the structures and the associations of the soil colloidal constituents. In my view the rapid advances in Soil Science, and the great benefits to agriculture from these, have their origins in the emerging understanding of the structures and the associations of the different soil colloids. It is clear that much research is still needed before the molecular details of the most important of the structures and of the interactions are fully understood. The associations between the soil colloids, and the manner in which they bind to or hold the other constituents of soils in aggregates is fundamental to soil fertility. and the Modem intensive agriculture leads to the degradation of soil structure subsequent loss through erosion of a resource that is vital for the production of food. This degradation is considered to result primarily from the biological oxidation of the indigenous soil organic matter, and from the failure to return to the soil sufficient organic residues to compensate for such losses.

Soil Colloids and Their Associations in Aggregates

Soil Colloids and Their Associations in Aggregates PDF Author: Marcel F. De Boodt
Publisher: Springer Science & Business Media
ISBN: 1489926119
Category : Science
Languages : en
Pages : 598

Get Book Here

Book Description
S. Henin Versailles, France It was a pleasure for me to take part in the NATO Advanced Study Workshop for studies of 'Soil Colloids and their Associations in Soil Aggregates'. The meeting provided me with a welcome opportunity to renew acquaintances with respected colleagues in the various fields of Soil Science, to listen to their presentations, and be involved in discussions which were at the frontiers of the science which deals with the structures and the associations of the soil colloidal constituents. In my view the rapid advances in Soil Science, and the great benefits to agriculture from these, have their origins in the emerging understanding of the structures and the associations of the different soil colloids. It is clear that much research is still needed before the molecular details of the most important of the structures and of the interactions are fully understood. The associations between the soil colloids, and the manner in which they bind to or hold the other constituents of soils in aggregates is fundamental to soil fertility. and the Modem intensive agriculture leads to the degradation of soil structure subsequent loss through erosion of a resource that is vital for the production of food. This degradation is considered to result primarily from the biological oxidation of the indigenous soil organic matter, and from the failure to return to the soil sufficient organic residues to compensate for such losses.

Interactions at the Soil Colloid

Interactions at the Soil Colloid PDF Author: G.H. Bolt
Publisher: Springer Science & Business Media
ISBN: 9401719098
Category : Nature
Languages : en
Pages : 605

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Book Description
About 20 years ago the emphasis in soil chemistry research switched from studies of problems related to scarcities of plant nutrients to those arising from soil pollutants. The new problems have come about because of the excessive uses of fertilizers, the inputs from farm and industrial wastes, the widespread applications of anthropogenie xenobiotic chemicals, and the deterioration of soil structure resulting from certain modern agriculture practises. The International Society of Soil Science (ISSS) recognized these problems and challenges. A provisional Working Group was set up in 1978 to focus attention on soil colloids with a view to understanding better the interactions wh ich take place at their surfaces. It was recognized that these interactions are fundamental to problems of soil fertility, as weIl as to those of soil pollution. After the group had received the official support of ISSS at its 12th International Congress in New Delhi in 1982 it set as its priority the assembling and evaluation of information, relevant to the soil and environmental sciences, concerning the composition and structure of soil colloids. Prior to that aseries of Position Papers were published in the Bulletin of the International Society of Soil Science (Vol. 61, 1981) outlining the state of knowledge about the composition and properties of soil colloids.

Soil Ecology

Soil Ecology PDF 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).

Formation and Properties of Clay-Polymer Complexes

Formation and Properties of Clay-Polymer Complexes PDF Author: B.K.G. Theng
Publisher: Elsevier
ISBN: 0444533540
Category : Science
Languages : en
Pages : 529

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Book Description
Formation and Properties of Clay-Polymer Complexes provides a comprehensive account of the reactions between clay minerals and organic polymers. The book opens with a discussion of the structures of common clay minerals, clays colloid chemistry, and the behaviour of organic polymers at clay surfaces. This is followed by a systematic treatment of complex formation between clay minerals and various classes of synthetic and naturally occurring polymers, a description of the properties of the resulting complexes and, wherever appropriate, their practical applications. The book will have a new separate chapter on clay-polymer nanocomposites. Each chapter is written as a self-contained review paper, giving a list of reference to the original literature. Describes the important development in clay-polymer nanocomposites Contains new figures and diagrams Extenisve revision of the previous edition

Environmental Impacts of Soil Component Interactions

Environmental Impacts of Soil Component Interactions PDF Author: P. M. Huang
Publisher: CRC Press
ISBN: 9780873719148
Category : Technology & Engineering
Languages : en
Pages : 472

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Book Description
This book addresses the interactions of soil minerals with organics and microbes and their impacts on the dynamics, transformations, and toxicity of metals, metalloids, other inorganics, and xenobiotics that affect land quality and ecosystem health. It is the result of the work group on "interactions of soil minerals with organic components and microorganisms" in the International Society of Soil Science.

Advances in Agronomy

Advances in Agronomy PDF Author:
Publisher: Elsevier
ISBN: 0080469191
Category : Technology & Engineering
Languages : en
Pages : 259

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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. As always, the subjects covered are varied and exemplary of the myraid of subject matter dealt with by this long-running serial. Volume 92 contains four indespensable reviews and 17 detailed images. - Maintains the highest impact factor among serial publications in Agriculture - Presents timely reviews on important agronomy issues such as nutrients, water relations, polyacrylamide, and more - Enjoys a long-standing reputation for excellence in the field

Cadmium in Soils and Plants

Cadmium in Soils and Plants PDF Author: M.J. McLaughlin
Publisher: Springer Science & Business Media
ISBN: 9401144737
Category : Science
Languages : en
Pages : 283

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Book Description
Over forty years ago, concern was first focussed on cadmium contamination of soils, fertilisers and the food chain. Adverse effects on human health were first highlighted nearly 30 years ago in Japan with the outbreak of Itai-itai disease. Since then, substantial research data have accumulated for cadmium on chemistry in soils, additions to soils, uptake by plants, adverse effects on the soil biota and transfer through the food chain. However, this information has never been compiled into a single volume. This was the stimulus for the Kevin G. Tiller Memorial Symposium "Cadmium in Soils, Plants and the Food Chain", held at the University of California, Berkeley, in June 1997 as part of the Fourth International Conference on the Biogeochemistry of Trace Elements. This symposium brought together leading scientists in the field of cadmium behaviour in soils and plants, to review the scientific data in the literature and highlight gaps in our current knowledge of the subject. This series of review papers are presented here and deal with the chemistry of cadmium in soils, the potential for transfer through the food chain and management to minimise this problem. We hope this information provides a sound scientific basis to assist development of policies and regulations for controlling cadmium in the soil environment.

Handbook of Soil Conditioners

Handbook of Soil Conditioners PDF Author: Wallace
Publisher: CRC Press
ISBN: 9780824701178
Category : Technology & Engineering
Languages : en
Pages : 626

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Book Description
This work features scientific, technical and practical information on mineral, organic and synthetic conditioners, as well as their beneficial effects on the soil's physical properties that promote optimal plant growth, maximize soil fertility, and enhance biomediation processes. It promotes the synergistic use of various agricultural technologies to manage global concerns of decreasing arable land.

Humic Substances, Peats and Sludges

Humic Substances, Peats and Sludges PDF Author: M H B Hayes
Publisher: Elsevier
ISBN: 1845693221
Category : Science
Languages : en
Pages : 507

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Book Description
Based on the contributions given at a leading international conference, this volume concentrates on developments in the environmentally-friendly disposal of sludges and on the reawakened interest in composting which has emerged as a result of significant European directives.

Clay Surfaces

Clay Surfaces PDF Author: Fernando Wypych
Publisher: Elsevier
ISBN: 0080472265
Category : Technology & Engineering
Languages : en
Pages : 566

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Book Description
Clay plays an important role in everyday life. This versatile mineral is used in housing, improving the environment as a waste treatment material and also in biological applications and medical health care. Clay Surfaces contains 17 chapters which deal with various aspects of natural and man made (synthetic) clay. Well written by experts in both experimental and theoretical areas, this book takes the reader into the fascinating world of the chemistry and physics of clay mineral surfaces and interfaces as well as the complex phenomena on the surfaces involved in clay related systems. This book will provide a better understanding of the intervention mechanisms of interactions of soils in contact with wastes, actions to be taken in the case of chemical spillage, methods to improve the production of food without affecting the ecological balance, increased fixation of carbon in the soil to increase grain production and reduction of carbon dioxide release into the atmosphere. Applications covered describe the role of clays in environmental remediation and the pharmaceutical and cosmetic industries. This book looks at theory and applications of both natural and modified clays from academic and industrial viewpoints. With broad appeal, this book is suitable for specialists directly involved in clay science and those undergraduate and graduate student studying related areas.