Nitrogen In The Marine Environment

Author : Edward J. Carpenter,Douglas G. Capone
Publisher : Elsevier
Page : 900 pages
File Size : 48,9 Mb
Release : 2016-10-27
Category : Science
ISBN : 9781483288291

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Nitrogen in the Marine Environment by Edward J. Carpenter,Douglas G. Capone Pdf

Nitrogen in the Marine Environment provides information pertinent to the many aspects of the nitrogen cycle. This book presents the advances in ocean productivity research, with emphasis on the role of microbes in nitrogen transformations with excursions to higher trophic levels. Organized into 24 chapters, this book begins with an overview of the abundance and distribution of the various forms of nitrogen in a number of estuaries. This text then provides a comparison of the nitrogen cycling of various ecosystems within the marine environment. Other chapters consider chemical distributions and methodology as an aid to those entering the field. This book discusses as well the enzymology of the initial steps of inorganic nitrogen assimilation. The final chapter deals with the philosophy and application of modeling as an investigative method in basic research on nitrogen dynamics in coastal and open-ocean marine environments. This book is a valuable resource for plant biochemists, microbiologists, aquatic ecologists, and bacteriologists.

Author : Edward J. Carpenter
Publisher : Unknown
Page : 128 pages
File Size : 55,9 Mb
Release : 1983
Category : Electronic
ISBN : OCLC:912292609

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Nitrogen in the Marine Environment by Edward J. Carpenter Pdf

Author : Jonathan P. Zehr,Douglas G. Capone
Publisher : Springer Nature
Page : 191 pages
File Size : 47,6 Mb
Release : 2021-04-02
Category : Science
ISBN : 9783030677466

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Marine Nitrogen Fixation by Jonathan P. Zehr,Douglas G. Capone Pdf

This book aims to serve as a centralized reference document for students and researchers interested in aspects of marine nitrogen fixation. Although nitrogen is a critical element in both terrestrial and aquatic productivity, and nitrogen fixation is a key process that balances losses due to denitrification in both environments, most resources on the subject focuses on the biochemistry and microbiology of such processes and the organisms involved in the terrestrial environment on symbiosis in terrestrial systems, or on largely ecological aspects in the marine environment. This book is intended to provide an overview of N2 fixation research for marine researchers, while providing a reference on marine research for researchers in other fields, including terrestrial N2 fixation. This book bridges this knowledge gap for both specialists and non-experts, and provides an in-depth overview of the important aspects of nitrogen fixation as it relates to the marine environment. This resource will be useful for researchers in the specialized field, but also useful for scientists in other disciplines who are interested in the topic. It would provide a possible text for upper division classes or graduate seminars.

Author : T. Henry Blackburn,Jan Sorensen,Jan Sørensen
Publisher : Unknown
Page : 488 pages
File Size : 40,6 Mb
Release : 1988-03-21
Category : Science
ISBN : UCSD:31822036170066

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Nitrogen Cycling in Coastal Marine Environments by T. Henry Blackburn,Jan Sorensen,Jan Sørensen Pdf

Nitrogen discharge to the coastal environment has been increasing, posing the threat of accelerated eutrofication. Considerable research has been conducted in recent years to examine the impact of the nitrogen loading in coastal ecosystems. Based on proceedings from a SCOPE symposium held at the University of Aarhus in July of 1985, this volume covers a variety of up-to-date developments in research on nitrogen cycling in coastal marine environments. Topics include the role of nitrogen in algal productivity, regeneration of nutrients in the water column and the sediments, and the flow of nitrogen in coastal ecosystems.

Author : Anonim
Publisher : Unknown
Page : 1729 pages
File Size : 45,8 Mb
Release : 2008
Category : Electronic books
ISBN : OCLC:1090043231

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Nitrogen in the Marine Environment by Anonim Pdf

Author : Etaro Wada,Akihiko Hattori
Publisher : CRC Press
Page : 226 pages
File Size : 53,5 Mb
Release : 1990-12-07
Category : Science
ISBN : 0849362733

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Nitrogen in the Sea by Etaro Wada,Akihiko Hattori Pdf

This book provides essential information regarding the dynamics and rate processes of nitrogenous compounds in the sea. Topics discussed include characteristics and behavior of nitrogen at the atomic, molecular, and isotopic levels; elemental rate processes and physico-chemical and biological factors; the dynamics of nitrogen in several representative marine ecosystems; and current progress in isotope marine biogeochemistry. The book emphasizes the distribution and variation of nitrogen isotopes, which can provide a novel approach to understanding nitrogen metabolisms occurring in marine ecosystems. Nitrogen in the Sea: Forms, Abundances, and Rate Processes should be considered an indispensable reference tool for researchers and post-graduate students interested in the nitrogen cycle in aquatic ecosystems

Author : Susan Creagh
Publisher : Unknown
Page : 19 pages
File Size : 42,6 Mb
Release : 1985
Category : Nitrogen
ISBN : 0724468838

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Nitrogen Fixation in the Marine Environment by Susan Creagh Pdf

Author : J.L. Hatfield,R.F. Follett
Publisher : Elsevier
Page : 720 pages
File Size : 48,9 Mb
Release : 2008-08-28
Category : Technology & Engineering
ISBN : 0080569897

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Nitrogen in the Environment by J.L. Hatfield,R.F. Follett Pdf

Nitrogen is one of the most critical elements for all life forms. In agricultural systems it is essential 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. Nitrogen in the Environment provides a wholistic perspective and comprehensive treatment of nitrogen. The scope of this book is diverse covering a range of topics and issues related to furthering our understanding of nitrogen in the environment at farm and national levels. Issues of nitrogen from its effects on crops and human nutrition to nitrogen in ground water, watersheds, streams, rivers, and coastal marine environments are discussed to provide a broad view of the problem and support scientists, researchers, and engineers in formulating comprehensive solutions. * The only source which presents an international, wholistic perspective of the effects of nitrogen in the environment with worldwide mitigation practices * Provides details on how to improve the quality of the environment by analyzing the development of emerging technologies * Develops strategies to be used by soil scientists, agronomists, hydrologists, and geophysicists for broad scale improvement of nitrogen efficiency

Author : Elizabeth Braun,United Nations Environment Programme. Division of Technology, Industry, and Economics,Woods Hole Research Center (Woods Hole, Mass.)
Publisher : UNEP/Earthprint
Page : 56 pages
File Size : 51,5 Mb
Release : 2007
Category : Political Science
ISBN : 9280727834

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Reactive Nitrogen in the Environment by Elizabeth Braun,United Nations Environment Programme. Division of Technology, Industry, and Economics,Woods Hole Research Center (Woods Hole, Mass.) Pdf

This non-technical report summarises the present scientific understanding of the major issues surrounding reactive nitrogen, and discusses the overarching environmental, human health and economic issues created by both excesses and deficiencies. The report provides case studies of effective policy implementation and reviews emerging policies to show how negative impacts associated with reactive nitrogen may be successfully addressed locally, nationally and regionally, given similar challenges, shared experiences and effective solutions.

Author : Houma Bachari Fouzia
Publisher : BoD – Books on Demand
Page : 170 pages
File Size : 42,8 Mb
Release : 2019-06-05
Category : Technology & Engineering
ISBN : 9781838808112

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Monitoring of Marine Pollution by Houma Bachari Fouzia Pdf

Many of the pollutants discharged into the sea are directly or indirectly the result of human activities. Some of these substances are biodegradable, while others are not. This study is devoted to monitoring areas of the environment. Methods assessment is based on monitoring data and an evaluation of the impact of pollution.Surveillance provides a scientific basis for standards development and application. The methodology of marine pollution control is governed by algorithms and models. A monitoring strategy should be put in place, coupled with an environmental assessment concept, through targeted research activities in areas identified at local and regional levels. This concept will make it possible to diagnose the state of "health" of these zones and consequently to correct any anomalies. Monitoring of the marine and coastal environment is based on recent methods and validated after experiments in the field of marine pollution.

Author : National Research Council,Commission on Geosciences, Environment, and Resources,Water Science and Technology Board,Ocean Studies Board,Committee on the Causes and Management of Coastal Eutrophication
Publisher : National Academies Press
Page : 422 pages
File Size : 44,6 Mb
Release : 2000-08-17
Category : Science
ISBN : 9780309069489

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Clean Coastal Waters by National Research Council,Commission on Geosciences, Environment, and Resources,Water Science and Technology Board,Ocean Studies Board,Committee on the Causes and Management of Coastal Eutrophication Pdf

Environmental problems in coastal ecosystems can sometimes be attributed to excess nutrients flowing from upstream watersheds into estuarine settings. This nutrient over-enrichment can result in toxic algal blooms, shellfish poisoning, coral reef destruction, and other harmful outcomes. All U.S. coasts show signs of nutrient over-enrichment, and scientists predict worsening problems in the years ahead. Clean Coastal Waters explains technical aspects of nutrient over-enrichment and proposes both immediate local action by coastal managers and a longer-term national strategy incorporating policy design, classification of affected sites, law and regulation, coordination, and communication. Highlighting the Gulf of Mexico's "Dead Zone," the Pfiesteria outbreak in a tributary of Chesapeake Bay, and other cases, the book explains how nutrients work in the environment, why nitrogen is important, how enrichment turns into over-enrichment, and why some environments are especially susceptible. Economic as well as ecological impacts are examined. In addressing abatement strategies, the committee discusses the importance of monitoring sites, developing useful models of over-enrichment, and setting water quality goals. The book also reviews voluntary programs, mandatory controls, tax incentives, and other policy options for reducing the flow of nutrients from agricultural operations and other sources.

Author : Martin Solan,Nia M. Whiteley
Publisher : Oxford University Press
Page : 381 pages
File Size : 44,6 Mb
Release : 2016
Category : Science
ISBN : 9780198718826

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Stressors in the Marine Environment by Martin Solan,Nia M. Whiteley Pdf

This edited work summarises the latest advances in the physiological and ecological responses of marine species to a wide range of potential stressors resulting from current anthropogenic activity. It provides a perspective on future outcomes for some of the most pressing environmental issues facing society today.

Author : R.F. Follett,J.L. Hatfield
Publisher : Gulf Professional Publishing
Page : 538 pages
File Size : 53,9 Mb
Release : 2001-12-03
Category : Science
ISBN : 9780080537566

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Nitrogen in the Environment: Sources, Problems and Management by R.F. Follett,J.L. Hatfield Pdf

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.

Author : Sven Beer,Mats Björk,John Beardall
Publisher : John Wiley & Sons
Page : 229 pages
File Size : 52,9 Mb
Release : 2014-05-27
Category : Science
ISBN : 9781119979579

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Photosynthesis in the Marine Environment by Sven Beer,Mats Björk,John Beardall Pdf

"Marine photosynthesis provides for at least half of the primary production worldwide..." Photosynthesis in the Marine Environment constitutes a comprehensive explanation of photosynthetic processes as related to the special environment in which marine plants live. The first part of the book introduces the different photosynthesising organisms of the various marine habitats: the phytoplankton (both cyanobacteria and eukaryotes) in open waters, and macroalgae, marine angiosperms and photosymbiont-containing invertebrates in those benthic environments where there is enough light for photosynthesis to support growth, and describes how these organisms evolved. The special properties of seawater for sustaining primary production are then considered, and the two main differences between terrestrial and marine environments in supporting photosynthesis and plant growth are examined, namely irradiance and inorganic carbon. The second part of the book outlines the general mechanisms of photosynthesis, and then points towards the differences in light-capturing and carbon acquisition between terrestrial and marine plants. This is followed by discussing the need for a CO2 concentrating mechanism in most of the latter, and a description of how such mechanisms function in different marine plants. Part three deals with the various ways in which photosynthesis can be measured for marine plants, with an emphasis on novel in situ measurements, including discussions of the extent to which such measurements can serve as a proxy for plant growth and productivity. The final chapters of the book are devoted to ecological aspects of marine plant photosynthesis and growth, including predictions for the future.

Author : Rainer Zahn,Thomas F. Pedersen,Michael A. Kaminski,Laurent Labeyrie
Publisher : Springer Science & Business Media
Page : 579 pages
File Size : 55,7 Mb
Release : 2013-06-29
Category : Science
ISBN : 9783642787379

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Carbon Cycling in the Glacial Ocean: Constraints on the Ocean’s Role in Global Change by Rainer Zahn,Thomas F. Pedersen,Michael A. Kaminski,Laurent Labeyrie Pdf

A comprehensive progress report on the multi-disciplinary field of ocean and climate change research is given. It compiles introductory background papers and leading scientific results on the ocean-atmosphere carbon cycle with emphasis on the ocean's carbon inventory and the various components involved. The relationship between plankton productivity, carbon fixation, oceanic PCO2 and climate change is investigated from the viewpoint of long-term climatic change during the late Quaternary cycles of ice ages and warm ages. The various approaches range from micropaleontology over organic and trace element geochemistry to molecular isotope geochemistry.