Download or read book Clay Mineral and Sedimentary Controls on Sorptive Preservation of Terrestrial Organic Matter written by Amelia Carol Robinson and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Deciphering terrestrial climatic conditions in marine sediments as well as overall terrestrial contributions to carbon preservation in continental margins requires that the biogeochemical signatures faithfully record vegetation and soil organic matter compositions of the watershed from which it was derived. How these compounds change from the time of their formation to their export and burial in marine environments is poorly constrained. This research addressed changes in organic matter-clay mineral systems in response to sorption of lignin phenols, desorption through a salinity gradient, and secondary uptake of amino acids. Scaling up from single clay mineral and lignin phenol standards to heterogeneous systems using plant leachates and soils of contrasting mineralogy, provided supporting evidence that clay minerals present in these soils do, in fact, contribute significantly to OC and lignin phenol sorption. The fact that kaolinite and montmorillonite sorbed similar quantities across these different particle systems despite differences in mineral specific surface area, suggests that mineral-specific reactivity may be more important than typically considered. Further contrasts in how lignin phenols desorbed from these two minerals highlights an additional control on OM compositions and source and diagenetic information derived from lignin phenols preserved in continental margin sediments. Retention of lignin phenols on mineral surfaces (~60% of initial amounts sorbed, effectively priming the surfaces) resulted in 2-3 times more glutamic acid sorbed relative to mineral surfaces without lignin phenol-priming. As such, the cumulative history that OM-clay mineral particles experience, ultimately determines their reactivity in continental margin sediments. Continental margin sediments apparently contain much less terrestrial organic matter than can be accounted for based on inputs, and thus may reflect enhanced burial of marine organic matter due to assistance from terrestrial-primed mineral surfaces. An overarching finding of this research is that particulate OM-clay mineral systems undergo molecular-level fractionation at all stages of processing from terrestrial source to depositional zones in continental margins.
Download or read book Geochemistry of the Earth s Surface written by Halldor Armannsson and published by CRC Press. This book was released on 1999-01-01 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics covered: Geochemical record of terrestrial environmental change, and global geochemical cycles; Chemical weathering and climate, river catchment studies; Environmental geochemistry of the terrestrial environment and its effect on health; Organic geochemistry; Marine and sedimentary geochemistry; Mineralogy, microbes and chemistry of weathering; Geochemical thermodynamics and kinetics; Geochemistry of crustal fluids and of catastrophic events.
Download or read book Treatise on Geochemistry written by and published by Newnes. This book was released on 2013-10-19 with total page 14787 pages. Available in PDF, EPUB and Kindle. Book excerpt: This extensively updated new edition of the widely acclaimed Treatise on Geochemistry has increased its coverage beyond the wide range of geochemical subject areas in the first edition, with five new volumes which include: the history of the atmosphere, geochemistry of mineral deposits, archaeology and anthropology, organic geochemistry and analytical geochemistry. In addition, the original Volume 1 on "Meteorites, Comets, and Planets" was expanded into two separate volumes dealing with meteorites and planets, respectively. These additions increased the number of volumes in the Treatise from 9 to 15 with the index/appendices volume remaining as the last volume (Volume 16). Each of the original volumes was scrutinized by the appropriate volume editors, with respect to necessary revisions as well as additions and deletions. As a result, 27% were republished without major changes, 66% were revised and 126 new chapters were added. In a many-faceted field such as Geochemistry, explaining and understanding how one sub-field relates to another is key. Instructors will find the complete overviews with extensive cross-referencing useful additions to their course packs and students will benefit from the contextual organization of the subject matter Six new volumes added and 66% updated from 1st edition. The Editors of this work have taken every measure to include the many suggestions received from readers and ensure comprehensiveness of coverage and added value in this 2nd edition The esteemed Board of Volume Editors and Editors-in-Chief worked cohesively to ensure a uniform and consistent approach to the content, which is an amazing accomplishment for a 15-volume work (16 volumes including index volume)!
Download or read book Marine Organic Matter Biomarkers Isotopes and DNA written by J. K. Volkman and published by Springer Science & Business Media. This book was released on 2006-02-09 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: The oceans contain a great biodiversity of marine organisms. They include a rich variety of unusual genes and biochemistries and hence a diverse array of organic compounds ranging from colourful carotenoids and chlorophylls to lipids with structures ranging from the simple to the complex. This volume brings together ten chapters on the occurrence and identification of the lipid biomarkers and of pigments in marine waters. It describes how they can be used in conjunction with stable isotopes and molecular biology to ascertain the sources and fate of organic matter (both natural and pollutant) in the sea and underlying sediments. The authors are each experts in their field and the chapters provide both an overview of the state-of-the-art and knowledge gaps together with abundant detail to satisfy the needs of specialists and non-specialists alike.
Download or read book Proceedings of the Ocean Drilling Program written by Ocean Drilling Program and published by . This book was released on 1998 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organic Matter written by Jean K. Whelan and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biogeochemistry of Marine Dissolved Organic Matter written by Dennis A. Hansell and published by Academic Press. This book was released on 2014-10-02 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine dissolved organic matter (DOM) is a complex mixture of molecules found throughout the world's oceans. It plays a key role in the export, distribution, and sequestration of carbon in the oceanic water column, posited to be a source of atmospheric climate regulation. Biogeochemistry of Marine Dissolved Organic Matter, Second Edition, focuses on the chemical constituents of DOM and its biogeochemical, biological, and ecological significance in the global ocean, and provides a single, unique source for the references, information, and informed judgments of the community of marine biogeochemists. Presented by some of the world's leading scientists, this revised edition reports on the major advances in this area and includes new chapters covering the role of DOM in ancient ocean carbon cycles, the long term stability of marine DOM, the biophysical dynamics of DOM, fluvial DOM qualities and fate, and the Mediterranean Sea. Biogeochemistry of Marine Dissolved Organic Matter, Second Edition, is an extremely useful resource that helps people interested in the largest pool of active carbon on the planet (DOC) get a firm grounding on the general paradigms and many of the relevant references on this topic. Features up-to-date knowledge of DOM, including five new chapters The only published work to synthesize recent research on dissolved organic carbon in the Mediterranean Sea Includes chapters that address inputs from freshwater terrestrial DOM
Download or read book Treatise on Geochemistry The oceans and marine geochemistry written by Heinrich D. Holland and published by . This book was released on 2004 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This volume focuses on natural and anthropogenic environmental contaminants and their implications for human health and the environment." --Cover.
Download or read book Nature written by Sir Norman Lockyer and published by . This book was released on 1869 with total page 1220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multi Scale Biogeochemical Processes in Soil Ecosystems written by Yu Yang and published by John Wiley & Sons. This book was released on 2022-03-23 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: MULTI-SCALE BIOGEOCHEMICAL PROCESSES IN SOIL ECOSYSTEMS Provides a state-of-the-art overview of research in soil biogeochemical processes and strategies for greenhouse gas mitigation under climate change Food security and soil health for the rapidly growing human population are threatened by increased temperature and drought, soil erosion and soil quality degradation, and other problems caused by human activities and a changing climate. Because greenhouse gas emission is the primary driver of climate change, a complete understanding of the cycles of carbon and major nutritional elements is critical for developing innovative strategies to sustain agricultural development and environmental conservation. Multi-Scale Biogeochemical Processes in Soil Ecosystems: Critical Reactions and Resilience to Climate Changes is an up-to-date overview of recent research in soil biogeochemical processes and applications in ecosystem management. Organized into three parts, the text examines molecular-scale processes and critical reactions, presents ecosystem-scale studies of ecological hotspots, and discusses large-scale modeling and prediction of global biogeochemical cycles. Part of the Wiley - IUPAC Series on Biophysico-Chemical Processes in Environmental Systems, this authoritative volume: Provides readers with a systematic and interdisciplinary approach to sustainable agricultural development and management of soil ecosystems in a changing climate Features contributions from an international team of leading scientists Examines topics such as soil organic matter stabilization, soil biogeochemistry modeling, and soil responses to environmental changes Discusses strategies for mitigating greenhouse gas emission and improving soil health and ecosystems resilience Includes an introduction to working across scales to project soil biogeochemical responses to climatic change Multi-Scale Biogeochemical Processes in Soil Ecosystems: Critical Reactions and Resilience to Climate Changes is essential reading for scientists, engineers, agronomists, chemists, biologists, academic researchers, consultants, and other professionals whose work involves the nutrient cycle, ecosystem management, and climate change.
Download or read book Environmental Interactions of Clays written by Andrew Parker and published by Springer Science & Business Media. This book was released on 1998-07-07 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 Bioavailability of Contaminants in Soils and Sediments written by National Research Council and published by National Academies Press. This book was released on 2003-05-03 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioavailability refers to the extent to which humans and ecological receptors are exposed to contaminants in soil or sediment. The concept of bioavailability has recently piqued the interest of the hazardous waste industry as an important consideration in deciding how much waste to clean up. The rationale is that if contaminants in soil and sediment are not bioavailable, then more contaminant mass can be left in place without creating additional risk. A new NRC report notes that the potential for the consideration of bioavailability to influence decision-making is greatest where certain chemical, environmental, and regulatory factors align. The current use of bioavailability in risk assessment and hazardous waste cleanup regulations is demystified, and acceptable tools and models for bioavailability assessment are discussed and ranked according to seven criteria. Finally, the intimate link between bioavailability and bioremediation is explored. The report concludes with suggestions for moving bioavailability forward in the regulatory arena for both soil and sediment cleanup.
Download or read book Mineral Control of Soil Organic Matter Stabilization written by Markus Kleber and published by . This book was released on 2005 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1972 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organic Matter in Clay Minerals and Marine Sediments written by Philip Alan Meyers and published by . This book was released on 1974 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deep Carbon written by Beth N. Orcutt and published by Cambridge University Press. This book was released on 2019-10-17 with total page 687 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive guide to carbon inside Earth - its quantities, movements, forms, origins, changes over time and impact on planetary processes. This title is also available as Open Access on Cambridge Core.
Download or read book Wetland Carbon and Environmental Management written by Ken W. Krauss and published by John Wiley & Sons. This book was released on 2021-11-23 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores how the management of wetlands can influence carbon storage and fluxes. Wetlands are vital natural assets, including their ability to take-up atmospheric carbon and restrict subsequent carbon loss to facilitate long-term storage. They can be deliberately managed to provide a natural solution to mitigate climate change, as well as to help offset direct losses of wetlands from various land-use changes and natural drivers. Wetland Carbon and Environmental Management presents a collection of wetland research studies from around the world to demonstrate how environmental management can improve carbon sequestration while enhancing wetland health and function. Volume highlights include: Overview of carbon storage in the landscape Introduction to wetland management practices Comparisons of natural, managed, and converted wetlands Impact of wetland management on carbon storage or loss Techniques for scientific assessment of wetland carbon processes Case studies covering tropical, coastal, inland, and northern wetlands Primer for carbon offset trading programs and how wetlands might contribute The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity.Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals.
