Biogeochemistry of Estuarine Sediments PDF Download

Author: Thomas S. Bianchi
Publisher: Oxford University Press
ISBN: 0195160827
Category : Science
Languages : en
Pages : 721

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Book Description
Offering a comprehensive and interdisciplinary approach to the study of biochemical cycling in estuaries, this text utilises numerous illustrations and an extensive literature base in order to impart the current state-of-the-art knowledge in the field.

Author: Unesco
Publisher:
ISBN:
Category : Biogeochemistry
Languages : en
Pages : 302

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Book Description

Author: Thomas S. Bianchi
Publisher: John Wiley & Sons
ISBN: 9780471161745
Category : Science
Languages : en
Pages : 454

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Book Description
The definitive ecological guide to the Gulf of MexicoEstuaries Today the ecological health of the Gulf of Mexico--long the base ofvast commercial fisheries--is at risk from a potent array ofthreats, from increased nutrient inputs to the loss of coastalwetlands that impact water quality. Never before has knowledge of the biogeochemical processes of theGulf's estuaries and wetlands been so critical to its preservation,and yet until now research on this vital area has beenfragmented. Biogeochemistry of Gulf of Mexico Estuaries offers a comprehensive,integrated examination of these vital natural resources and theirecology. Featuring contributions from a diverse group of expertscientists from all regions of the Gulf Coast, thisinterdisciplinary reference provides extensive coverage of what isknown about biogeochemical processes--and the factors that regulatethem--in warm temperate and subtropical systems. Organized around aframework that integrates geomorphology, sedimentary processes,nutrient cycling, and trace metals chemistry, it not onlydemonstrates how the Gulf's estuarine systems work, but alsoestablishes a basis for how they compare with other, better-studiedtemperate estuaries. In addition, the book features afascinating--and timely--examination of the effects ofbiogeochemical processes on estuarine management. Biogeochemistry of Gulf of Mexico Estuaries will be welcomed byecologists, marine scientists, environmental activists, and anyoneinvolved with managing these precious natural resources.

Author: J. Gray
Publisher: Springer Science & Business Media
ISBN: 9401146497
Category : Science
Languages : en
Pages : 243

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Book Description
Oceanographic discontinuities (e. g. frontal systems, upwelling areas, ice edges) are often areas of enhanced biological productivity. Considerable research on the physics and biology of the physical boundaries defining these discontinues has been accomplished (see [I D. The interface between water and sediment is the largest physical boundary in the ocean, but has not received a proportionate degree of attention. The purpose of the Nato Advanced Research Workshop (ARW) was to focus on soft-sediment systems by identifying deficiencies in our knowledge of these systems and defining key issues in the management of coastal sedimentary habitats. Marine sediments play important roles in the marine ecosystem and the biosphere. They provide food and habitat for many marine organisms, some of which are commercially important. More importantly from a global perspective, marine sediments also provide "ecosystem goods and services" [2J. Organic matter from primary production in the water column and contaminants scavenged by particles accumulate in sediments where their fate is determined by sediment processes such as bioturbation and biogeochemical cycling. Nutrients are regenerated and contaminants degraded in sediments. Under some conditions, carbon accumulates in coastal and shelf sediments and may by removed from the carbon cycle for millions of years, having a potentially significant impact on global climate change. Sediments also protect coasts. The economic value of services provided by coastal areas has recently been estimated to be on the order of $12,568 9 10 y" [3J, far in excess of the global GNP.

Author: Thomas Bianchi
Publisher: Cambridge University Press
ISBN: 1107022576
Category : Science
Languages : en
Pages : 673

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Book Description
A comprehensive, state-of-the-art synthesis of biogeochemical dynamics and the impact of human alterations at major river-coastal interfaces for advanced students and researchers.

Author: Frank Lamy
Publisher: Springer Science & Business Media
ISBN: 9783540401681
Category : Science
Languages : en
Pages : 320

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Book Description
Europe is a continent with a high coast-to-surface ratio, and European seas encompass a broad range of settings and regimes. The sustainable development of living and non-living marine resources, the protection of the marine environment and the provision of marine-based services are critical to economic prosperity and to the quality of life of European citizens. Addressing these concerns, marine-science researchers conducted a workshop reviewing major topics of European marine research. This publication contains overview and thematic background papers, as well as reports and recommendations for future research covering topics such as ocean-climate coupling, biogeochemistry, coastal and shelf processes, and ecosystem functioning/biodiversity.

Author: Unesco
Publisher:
ISBN:
Category : Biogeochemistry
Languages : en
Pages : 302

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Book Description

Author: K. Ramesh Reddy
Publisher: CRC Press
ISBN: 0429531931
Category : Science
Languages : en
Pages : 926

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Book Description
The globally important nature of wetland ecosystems has led to their increased protection and restoration as well as their use in engineered systems. Underpinning the beneficial functions of wetlands are a unique suite of physical, chemical, and biological processes that regulate elemental cycling in soils and the water column. This book provides an in-depth coverage of these wetland biogeochemical processes related to the cycling of macroelements including carbon, nitrogen, phosphorus, and sulfur, secondary and trace elements, and toxic organic compounds. In this synthesis, the authors combine more than 100 years of experience studying wetlands and biogeochemistry to look inside the black box of elemental transformations in wetland ecosystems. This new edition is updated throughout to include more topics and provide an integrated view of the coupled nature of biogeochemical cycles in wetland systems. The influence of the elemental cycles is discussed at a range of scales in the context of environmental change including climate, sea level rise, and water quality. Frequent examples of key methods and major case studies are also included to help the reader extend the basic theories for application in their own system. Some of the major topics discussed are: Flooded soil and sediment characteristics Aerobic-anaerobic interfaces Redox chemistry in flooded soil and sediment systems Anaerobic microbial metabolism Plant adaptations to reducing conditions Regulators of organic matter decomposition and accretion Major nutrient sources and sinks Greenhouse gas production and emission Elemental flux processes Remediation of contaminated soils and sediments Coupled C-N-P-S processes Consequences of environmental change in wetlands# The book provides the foundation for a basic understanding of key biogeochemical processes and its applications to solve real world problems. It is detailed, but also assists the reader with box inserts, artfully designed diagrams, and summary tables all supported by numerous current references. This book is an excellent resource for senior undergraduates and graduate students studying ecosystem biogeochemistry with a focus in wetlands and aquatic systems.

Author: Ken W. Krauss
Publisher: John Wiley & Sons
ISBN: 111963928X
Category : Science
Languages : en
Pages : 484

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Book Description
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.

Author: Dennis A. Hansell
Publisher: Academic Press
ISBN: 0124071538
Category : Science
Languages : en
Pages : 712

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Book Description
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