Download or read book Interactions at the Soil Colloid written by G.H. Bolt and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 605 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Interactions at the Soil Colloid written by G. H. Bolt and published by . This book was released on 2014-01-15 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Colloids written by Fernando V. Molina and published by CRC Press. This book was released on 2016-04-19 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: Within the field of soil science, soil chemistry encompasses the different chemical processes that take place, including mineral weathering, humification of organic plant residues, and ionic reactions involving natural and foreign metal ions that play significant roles in soil. Chemical reactions occur both in the soil solution and at the soil part
Download or read book Soil Colloids and Their Associations in Aggregates written by Marcel F. De Boodt and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Ecological Significance of the Interactions among Clay Minerals Organic Matter and Soil Biota written by and published by Elsevier. This book was released on 2002-06-06 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: 623435-28b.gif Volume B covers the ecological significance of the interactions among clay minerals, organic matter and soil biota. Soil is a dynamic system in which soil minerals constantly interact with organic matter and microorganisms. Close association among abiotic and biotic entities governs several chemical and biogeochemical processes and affects bioavailability, speciation, toxicity, transformations and transport of xenobiotics and organics in soil environments. This book elaborates critical research and an integrated view on basic aspects of mineral weathering reactions; formation and surface reactivity of soil minerals with respect to nutrients and environmental pollutants; dynamics and transformation of metals, metalloids, and natural and anthropogenic organics; effects of soil colloids on microorganisms and immobilization and activity of enzymes, and metabolic processes, growth and ecology of microbes. It offers up-to-date information on the impact of such a processes on soil development, agricultural production, environmental protection, and ecosystem integrity.
Download or read book Soil Components written by J. E. Gieseking and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 683 pages. Available in PDF, EPUB and Kindle. Book excerpt: The major components of most soils are inorganic. These constituents are derived from the weathering of rocks and minerals or from subsequent reaetions and interactions of the weathering products. During the weathering and interactions of weathering products, in organic soil colloids are formed. Large amounts of inorganic colloids are essential in soils if they are to support luxurious plant growth. The colloids adsorb water and nutrient element s that might be lost from the soil &ystem and they release these as plants need them. They also adsorb and buffer the soil system against large excesses of soluble toxic substances that might otherwise exist as free moieties in soils. Soil and plant root interactions occur across two interfaces. One is the interface between plant roots and the liquid phase and the other is the interface between the soil particles and the liquid phase. Reaetions across the interface between colloid crystals and the soilliquid phase may also suppress the availability of nutrient elements to plants. The effectiveness of these interfaciaI reaetions in supporting optimum plant growth ultimately depends on the arrangements of ions in the surfaces and subsurfaces of the mineraI crystals. For this reason much of this volume is devoted to the arrangement of ions in crystalline mineraI particles commonly occuring in soils and the properties that these particles contribute to soiI systems.
Download or read book Environmental Interactions of Clays written by Andrew Parker and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This companion volume to Velde's Origin and Mineralogy of Clays deals with the role of clays in specific environmental issues, and is unique in its subject matter. Individual chapters are written by recognized international experts in their field, and cover such subjects as radioactive waste disposal, trace metals, soil quality and productivity, pesticides, landfill, fibrous minerals and health. The approach combines reviews with current research, making it an invaluable resource for students, researchers and practitioners alike.
Download or read book Organo Clay Complexes and Interactions written by Shmuel Yariv and published by CRC Press. This book was released on 2001-11-02 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Provides comprehensive coverage of the structures, properties, and interactions of organo-clay complexes as well as their role in the origin of life. Presents current techniques in nuclear magnetic resonance, differential thermal analysis and thermogravimetry, visible spectroscopy, and infrared and thermal-infrared spectroscopy for the analysis of
Download or read book Soil water Interactions written by Shingo Iwata and published by . This book was released on 1988 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emphasizing pioneering achievements, this work offers a clear and systematic description of various soil-water phenomena and their applications to soil problems such as water retention and the flux of water in soils and clays. This second edition contains material on the physical properties of adsorbed water, the application of fractal theory to solute and water flows in field soils, fingering research, and more.
Download or read book Soil Pollution written by Bruno Yaron and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: The soil is the medium through which pollutants originating from human activities, both in agriculture and industry, move from the land surfaces to groundwater. Polluting substances are subject to complex physical, chemical and biological transformations during their movement through the soil. Their displacement depends on the transport properties of the water-air-soil system and on the molecular properties of the pollutants. Prediction of soil pollution and restoration of polluted soils requires an under standing of the processes controlling the fate of pollutants in the soil medium and of the dynamics of the contaminants in the un saturated zone. Our book was conceived· as a basic overview of the processes governing the behavior of pollutants as affected by soil constituents and environmental factors. It was written for the use of specialists working on soil and unsaturated zone pollution and restoration, as well as for graduate students starting research in this field. Since many specialists working on soil restoration lack a back ground in soil science or a knowledge of the properties of soil pollutants, we have included this information which forms the first part of the book. In the second part, we discuss the partitioning of pollutants between the aqueous, solid and gaseous phase of the soil medium. The retention, transformation and transport of pollutants in the soils form the third section.
Download or read book Soil Water Interactions written by Iwata and published by CRC Press. This book was released on 2020-08-26 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emphasizing pioneering achievements, this work offers a clear and systematic description of various soil-water phenomena and their applications to soil problems such as water retention and the flux of water in soils and clays. This second edition contains material on the physical properties of adsorbed water, the application of fractal theory to solute and water flows in field soils, fingering research, and more.
Download or read book Soil Colloids and Their Associations in Aggregates written by Marcel F. De Boodt and published by Springer. This book was released on 1991-02-28 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Environmental Impacts of Soil Component Interactions written by P. M. Huang and published by CRC Press. This book was released on 1995-03-29 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Soil Mineral organic Matter microorganism Interactions and Ecosystem Health written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil Mineral-Organic Matter-Microorganism Interactions and Ecosystem Health presents up-to-date information on the dynamics, transformations and bioavailability of xenobiotics in soil and their impact on ecosystem health, the ecological significance of interactions of metals and metalloids with soil colloids, enzymes and microbial biomass and the role of minerals-organic matter - soil biota interactions in the restoration of perturbed ecosystems. The title comprises two volumes: Volume A: Dynamics, Mobility and Transformation of Pollutants and Nutrients. Volume B: Ecological Significance of the Interactions mong Clay Minerals, Organic Matter and Soil Biota. This title could serve as a basic reference for students, teachers, and researchers by providing in-depth knowledge of the current state of the art in a particular area of soil science.
Download or read book Nitrogen in the Environment Sources Problems and Management written by R.F. Follett and published by Gulf Professional Publishing. This book was released on 2001-12-03 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen in the Environment: Sources, Problems, and Management is the first volume to provide a holistic perspective and comprehensive treatment of nitrogen from field, to ecosystem, to treatment of urban and rural drinking water supplies, while also including a historical overview, human health impacts and policy considerations. It provides a worldwide perspective on nitrogen and agriculture. Nitrogen is one of the most critical elements required in agricultural systems for the production of crops for feed, food and fiber. The ever-increasing world population requires increasing use of nitrogen in agriculture to supply human needs for dietary protein. Worldwide demand for nitrogen will increase as a direct response to increasing population. Strategies and perspectives are considered to improve nitrogen-use efficiency. Issues of nitrogen in crop and human nutrition, and transport and transformations along the continuum from farm field to ground water, watersheds, streams, rivers, and coastal marine environments are discussed. Described are aerial transport of nitrogen from livestock and agricultural systems and the potential for deposition and impacts. The current status of nitrogen in the environment in selected terrestrial and coastal environments and crop and forest ecosystems and development of emerging technologies to minimize nitrogen impacts on the environment are addressed. The nitrogen cycle provides a framework for assessing broad scale or even global strategies to improve nitrogen use efficiency. Growing human populations are the driving force that requires increased nitrogen inputs. These increasing inputs into the food-production system directly result in increased livestock and human-excretory nitrogen contribution into the environment. The scope of this book is diverse, covering a range of topics and issues from furthering our understanding of nitrogen in the environment to policy considerations at both farm and national scales.
Download or read book Properties of the Colloidal Soil Material written by Myron Sallee Anderson and published by . This book was released on 1926 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pp. 43.
Download or read book Management of Nutrition in Forests under Stress written by H.W. Zöttl and published by Springer Science & Business Media. This book was released on 2013-04-18 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the International Symposium, held in Freiburg, Germany, September 18-21, 1989
