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Author : Tim Knut Schlarbaum
Publisher :
ISBN 13 :
Total Pages : 127 pages
Book Rating : 4.:/5 (838 download)
Download or read book Assessing the Role of Dissolved Organic Nitrogen in Different Aquatic Ecosystems written by Tim Knut Schlarbaum and published by . This book was released on 2011 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tim Knut Schlarbaum
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (838 download)
Download or read book Assessing the Role of Dissolved Organic Nitrogen in Different Aquatic Ecosystems written by Tim Knut Schlarbaum and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Stuart Findlay
Publisher : Academic Press
ISBN 13 : 0122563719
Total Pages : 534 pages
Book Rating : 4.1/5 (225 download)
Download or read book Aquatic Ecosystems: Interactivity of Dissolved Organic Matter written by Stuart Findlay and published by Academic Press. This book was released on 2003 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Overviews of the source, supply and variability of DOM, surveys of the processes that mediate inputs to microbial food webs, and syntheses consolidating research findings provide a comprehensive review of what is known of DOM in freshwater. This book will be important to anyone interested in understanding the fundamental factors associated with DOM that control aquatic ecosystems."--BOOK JACKET.
Author : Dennis A. Hansell
Publisher : Academic Press
ISBN 13 : 0124071538
Total Pages : 712 pages
Book Rating : 4.1/5 (24 download)
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
Author : Dennis A. Hansell
Publisher : Elsevier
ISBN 13 : 0080500110
Total Pages : 807 pages
Book Rating : 4.0/5 (85 download)
Download or read book Biogeochemistry of Marine Dissolved Organic Matter written by Dennis A. Hansell and published by Elsevier. This book was released on 2002-07-06 with total page 807 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interest in marine dissolved organic matter (DOM) is very high because it plays an important role in oceanic and global carbon cycling, which in turn impacts weather. Understanding the processes involved in the transformations of carbon, phosphorus, nitrogen, and other major elements in the oceans has been a primary goal of marine biogeochemists and oceanographers over the past decade.This book, in 16 chapters with over 170 figures and tables, reports on the major advances in this area by a distinguished group of international chemical and biological oceanographers. Additionally, it focuses on the role of DOM in elemental cycling - where the greatest informational need currently exists. Biological cycling of the major elements through DOM is assessed throughout, with particular emphasis on the role of marine microbes as active agents in the processing of this materialThe ocean science community's advances for inclusion of DOM in both ecosystem and global circulation models are evaluated
Author : Catherine Grace Winters
Publisher :
ISBN 13 : 9781369354133
Total Pages : 204 pages
Book Rating : 4.3/5 (541 download)
Download or read book Pulse of the Stream written by Catherine Grace Winters and published by . This book was released on 2016 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biotic and abiotic factors both play critical roles in the cycling of organic matter and nutrients in aquatic ecosystems. Understanding the relative control of these factors on solute fate and transport in fluvial systems is important for understanding how climatic changes can affect water quality. Many processes that control solute cycling in streams occur at sub-daily scales, making high-frequency, in situ, sub-hourly measurements important for capturing the response of dissolved organic matter and nutrients to changes in the strength of controlling processes. The tightly coupled aquatic and terrestrial environments present in headwater streams make them particularly useful systems for studying high-frequency changes in water chemistry. In this study, we examined the patterns of dissolved organic carbon, nitrate, dissolved oxygen, temperature, dissolved organic matter fluorescence, and stream discharge using in-stream measurements at sub-hourly to monthly time scales to understand the daily and seasonal controls of aquatic organic matter and nutrient processing. We also conducted a laboratory incubation to measure the effects of dissolved organic carbon and nutrient treatments on consumption of carbon and nitrogen in our system. Our main objectives were to identify: 1) the relative controls of diel biotic and abiotic processes on stream dissolved organic carbon and nitrate-N; and 2) the mechanisms controlling rapid autumnal changes in dissolved organic carbon and nitrate-N in stream runoff. We found that hydrology plays a key role in transporting solutes to a forested headwater stream in the Piedmont Region, Maryland; however, once solutes reach the stream biotic controls dominate the stream solute patterns. Biology is an important regulator of diel patterns of streamwater dissolved organic carbon and nitrate concentrations during springtime and autumn leaf fall. Diel cycling is most apparent during the spring prior to leaf out when the water temperature is increasing. Where patterns were evident, nitrate (annual average in second order stream: 17:00) and discharge (17:28) reached their minimums during the afternoon within a few hours of the peaks in dissolved oxygen (13:16), temperature (15:17), dissolved organic carbon (16:06), and dissolved organic matter fluorescence (17:23). Larger amplitudes of dissolved oxygen, nitrate, dissolved organic carbon, and dissolved organic matter fluorescence correspond with larger daily temperature changes. Laboratory incubations showed increased consumption of nitrogen in the presence of labile carbon, but not in the presence of labile carbon plus nutrients, which indicates our system is carbon limited. Autumn dissolved organic carbon and nitrate dynamics also indicate our system is carbon limited. Increased rates of leaf litter fall corresponded with increased consumption of stream nitrate leading to a late October depression, or annual minimum, in nitrate concentration. Storm events accelerated the recovery of stream nitrate to early autumn concentrations as nitrate was mobilized and transported from soils to the stream. Hydrology is important for solute transport to and export from the stream. Autotrophic activity dominates on the daily scale, while heterotrophic activity controls seasonal responses in organic matter and nutrient cycling in this forested watershed. Carbon and nitrogen dynamics have been studied in other forested systems, as well, but the controlling processes vary among these watershed. Our results highlight the importance of understanding controlling processes within specific watersheds when making large scale predictions of the potential export of carbon and nitrogen from forested systems.
Author : Edward J. Carpenter
Publisher : Elsevier
ISBN 13 : 1483288293
Total Pages : 919 pages
Book Rating : 4.4/5 (832 download)
Download or read book Nitrogen in the Marine Environment written by Edward J. Carpenter and published by Elsevier. This book was released on 2013-10-22 with total page 919 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Elif Pehlivanoglu
Publisher :
ISBN 13 :
Total Pages : 342 pages
Book Rating : 4.:/5 (35 download)
Download or read book The Fate of Wastewater-derived Dissolved Organic Nitrogen in the Aquatic Environment written by Elif Pehlivanoglu and published by . This book was released on 2004 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kaijun Lu
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (111 download)
Download or read book Biogeochemical Processes of Dissolved Organic Nitrogen in Aquatic Environments written by Kaijun Lu and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Penny J. Johnes
Publisher :
ISBN 13 : 9783031446917
Total Pages : 0 pages
Book Rating : 4.4/5 (469 download)
Download or read book Dissolved Organic Matter in Freshwater Ecosystems written by Penny J. Johnes and published by . This book was released on 2023-11-23 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Paula G. Coble
Publisher : Cambridge University Press
ISBN 13 : 0521764610
Total Pages : 407 pages
Book Rating : 4.5/5 (217 download)
Download or read book Aquatic Organic Matter Fluorescence written by Paula G. Coble and published by Cambridge University Press. This book was released on 2014-07-14 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: A core text on principles, laboratory/field methodologies, and data interpretation for fluorescence applications in aquatic science, for advanced students and researchers.
Author : Richard G. Zepp
Publisher : John Wiley & Sons
ISBN 13 : 9780471954637
Total Pages : 364 pages
Book Rating : 4.9/5 (546 download)
Download or read book The Role of Nonliving Organic Matter in the Earth's Carbon Cycle written by Richard G. Zepp and published by John Wiley & Sons. This book was released on 1995-07-11 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonliving organic matter (NLOM) comprises the bulk of the organic carbon stored in the terrestrial biosphere and a major part of the organic carbon in the sea. Organic substances, which include litter, marine detritus, dissolved organic matter, and soil organic matter, have diverse effects on the Earth's biogeochemical processes and serve as a major reservoir of biospheric carbon, which can be transformed to carbon dioxide, methane, and other "greenhouse" gases. Given this broad spectrum of effects, efforts to adapt to or perhaps benefit from global change require a better understanding and an ability to predict the role of NLOM in the global environment. The overall objective of this volume is to provide experimental and modeling strategies for the assessment of the sensitivity of the global carbon cycle to changes in nonliving organic pools in terrestrial and aquatic ecosystems. The discussions in this volume consider how best to characterize and quantify pools and fluxes of NLOM, the role of NLOM cycling on a global scale, human and climatic perturbations of interactions between NLOM and nutrients, and biological, chemical, and physical processes that control the production and degradation of NLOM, with an emphasis on processes that affect the persistence of NLOM in the environment. One of the most unique aspects of this volume is that it represents extensive exchanges between leading international scientists from both aquatic and terrestrial backgrounds. It will be of particular interest to organic geochemists, microbiologists, ecologists, soil scientists, agricultural scientists, marine chemists, limnologists, and modelers. Goal of this Dahlem Workshop: to devise experimental and modeling strategies for assessment of the sensitivity of the global carbon cycle to changes in nonliving organic pools.
Author : Robert G. Wetzel
Publisher : Academic Press
ISBN 13 : 0080574394
Total Pages : 1023 pages
Book Rating : 4.0/5 (85 download)
Download or read book Limnology written by Robert G. Wetzel and published by Academic Press. This book was released on 2001-05-10 with total page 1023 pages. Available in PDF, EPUB and Kindle. Book excerpt: Limnology is the study of the structural and functional interrelationships of organisms of inland waters as they are affected by their dynamic physical, chemical, and biotic environments. Limnology: Lake and River Ecosystems, Third Edition, is a new edition of this established classic text. The coverage remains rigorous and uncompromising and has been thoroughly reviewed and updated with evolving recent research results and theoretical understanding. In addition, the author has expanded coverage of lakes to reservoir and river ecosystems in comparative functional analyses.
Author : Paul Tratnyek
Publisher : OUP USA
ISBN 13 : 9780841226524
Total Pages : 0 pages
Book Rating : 4.2/5 (265 download)
Download or read book Aquatic Redox Chemistry written by Paul Tratnyek and published by OUP USA. This book was released on 2012-06-14 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a comprehensive overview of aquatic redox chemistry through chapters contributed by many of the leading investigators in the field.
Author : Paul del Giorgio
Publisher : OUP Oxford
ISBN 13 : 9780191523618
Total Pages : 332 pages
Book Rating : 4.5/5 (236 download)
Download or read book Respiration in Aquatic Ecosystems written by Paul del Giorgio and published by OUP Oxford. This book was released on 2005-01-06 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Respiration represents the major area of ignorance in our understanding of the global carbon cycle. In spite of its obvious ecological and biogeochemical importance, most oceanographic and limnological textbooks invariably deal with respiration only superficially and as an extension of production and other processes. The objective of this book is to fill this gap and to provide the first comprehensive review of respiration in the major aquatic systems of the biosphere. The introductory chapters review the general importance of respiration in aquatic systems, and deal with respiration within four key biological components of aquatic systems: bacteria, algae, heterotrophic protists, and zooplankton. The aim of this first part is to provide the backbone for the analysis and interpretation of ecosystem-level respiration in a variety of aquatic environments. The central chapters of the book review respiration in major aquatic ecosystems including freshwater wetlands, lakes and rivers, estuaries, coastal and open ocean and pelagic ecosystems, as well as respiration in suboxic environments. For each major ecosystem, the corresponding chapter provides a synthesis of methods used to assess respiration, outlines the existing information and data on respiration, discusses its regulation and link to biotic and abiotic factors, and finally provides regional and global estimates of the magnitude of respiration. The final chapter provides a general synthesis of the information and data provided in the different sections, and further attempts to place aquatic respiration within the context of the global carbon budget.
Author : Norman E. Peters
Publisher :
ISBN 13 :
Total Pages : 482 pages
Book Rating : 4.F/5 ( download)
Download or read book Hydrological, Chemical and Biological Processes of Transformation and Transport of Contaminants in Aquatic Environments written by Norman E. Peters and published by . This book was released on 1994 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. Overview: Water quality monitoring: national and international approaches - Richard Helmer. 2. Fate and transformation of contaminants: transport and fate of persistent toxic organic chemicals in aquatic ecosystems: the Niagara River to St Lawrence River Estuary example - R.J. Allan; impact of soil fertility by replacement of hydrologically different water types - B. Beltman & T.G. Rouwenhorst; transformation process of contaminants in rivers - J.H. Carey; pesticides in groundwater: some preliminary observations on behaviour and transport in tropical environments - P.J. Chilton, A.R. Lawrence & J.A. Baker; redox transformation of pollutants in natural waters - L. s. Ernestova, I.V. Semenova, G.V. Vlasova & N. Lee Wolf; contaminant interactions at surfaces for treatment of heavy metals in aquatic environments: mass espectrometry studies - J.V. Headley, P.W. Brooks & M Neuwirth; transformation and stabilization of metals and dissolved organic carbon in submerged calcareous environments - Maher E. Saleh; the kinetics of amino acid uptake by micro-organism in lake and river waters of the temperate and subartic zones under different trophic conditions - Humitake Seki; the interactions between trichloroethylene (TCE) and clay - C. Tang, S. Shindou & H. Ohashi; aquatic ecosystem stability to acidification: experimental modelling and buffering capacity calculation - M.G. Tarasov & A.M. Nikanorov; the precipitation of CaCO3: a mechanism of self-regulation of the LakeSevan ecosystem - D.S. Ulyanova; biological evaluation of the pollution of riverine wetlands by heavy metals - A.V. Zhulidov, T.A. Khoruzhaya, L.M. Predeina, E.V. Morozova, Y.V. Teplyakov, L.S. Kosmenko & S. Urmanov; some results of the lon-time ecological monitoring of the Leningrad NPP cooling water body (Koporskaya Bay, Gulf of Finland) - L.M. Zimina, V.L. Zimin & J.A. Khayrutdinova. 3. Hydrochemical modelling: formulations and solutions for problems of dispersion in groundwater - M.J. Adler & E. Ioan; Application of the Chrnobyl experience in developing methodology for assessing and predicting consequences of radioactive contamination of the hydrosphere - V.A. Borzilov, A.V. konoplev & A.A. Bulgakov; simulation of pollutant contamination of rivers after and atmospheric release - J.P. Bouchard & J. Duplex; a computer application for investigating the structural transformation of anthropogenically impacted aquatic ecosystems - V.A. Bryzgalo & P.A. Khaiter; investigating and modelling transport and adsorption of boron in the groundwater of Lerma valley, Argentina - J. Bundschuh, A. Fuertes, G. Baudino, R. Garcia & k. D. Balke; modelling microbial processes in porous media with application to biotransformation - A.B. Cunningham & O. Wanner; nutrient loads in the Vistula River: outflow into the Baltic Sea - J.R. Dojlido, E. Niemirycz & P. Morawiec; phenol biodegradation in the yenisei River and the Krasnoyarsk Reservoir, Russia - M.I. Gladyshev & I.V. Gribovskaya; numerical investigation of contaminant transport in shallow water bodies - L.A. Krukier e G.V. Muratova; modelling of chemicals dissolved in waters in an agricultural watershed - Z.W. Kunfzewicz, B. Szpakowska & R. Sibrecht; simulation of the redox sequence of an infiltration passage by direct numerical modelling of the mediating microorganisms - H.J. Lensing & B. herrling; hydrodynamic and water quality modelling of the Lower Don River, Russia - A.M Nikanorov, R.C. Russo, M.G. Yereschukova, E.Z. Hosseinipour & R.B. Ambrose; mathematical modelling of metal speciation in natural waters - V.I. Peleshenko, V.I. Osadchi & V.V. Kirnichni; plane dispersion of pollutants - J.M. Sawicki; physically-based modelling of pollutants transported by overland low - V.Y. Smakhtin; impact of river regulation on mercury transport - S.A. Sukhenko, E.B. Krissinel & S.A. Mikhailov; simulation of jeavy metal effect on fresh-water ecosystems in mesocosms and estimation of water body self-purification properties - Y.V. Teplyakov & A.M. Nikanorov; simulation of nutrient transformation in a reservoir ecosystem - A.A. Tskhai & V.Y. Ageikov. 4. Additional techniques and water quality assessments: impact of atmospheric precipitation on the sulphate concentration in surface waters of the Eastern European Plain - G.M. Chernogaeva; monitoring surface water conductivity with indian remote sensing satellite data: a case study from central India - V.K. choubey; use of 34S/32S ratios for evaluating anthropogenic impacts on Volga-Akhtuba flood plain surface waters - Y.A. Fedorov; multavariate classification methods as a methodological basis for natural object simulation - A.I. Gavrishin; analysis of water quality data using a multivariate statistical technique: a case study - K. Gurunathan & S. Ravichandran; hydraulic circulation system for in situ remediation of strippable contaminants and in situ bioreclamation (GZB/UVB method) - B. Herrling & J. Stamm; hydrochemical monitoring of a forested catchment with extremely high aluminium concentrations in runoff: the Lysina catchment, Czech Republic - J. kruska & Pavel Krám; application of remote sensing techniques to comprehensive monitoring of inland water ecosystems - K.Y. Kondratyev, V.V. Melentyev & D.V. Pozdniakov; evaluation of surface water pollution by nitrate in northeast Slovakia - O. Mendel & J. Repa; a fluorescent tracer for hydrodynamic process studies - A.M. Nikanorov, N.M. trunov, A.V. Bystrov, V.N. Askalepov & M.G. Tarasov; variations in stream water quality in a forested Piedmont catchment, Georgia, USA: relevance of sampling frequency and design - N.E. Peters; cumulative effects of land use practices on water quality - W.T. Swank & P.V. Bolstad; temporal variations of organic micropollutants during storm events in a small river catchment - W. Symader, R. Bierl & K. Hampe; application of experimental ecosystems for researching natural waters: the problem of similarity - N.M. Trunov, A.M. Nikanorov & V.N. Askalepov; contribution of various sources of contaminants to the total input into the North Sea - K.J. Wulffraat, T. Smit & H. Groskamp; residual arsenic in Yellow River fish and effects of suspended sediment - Z. Shuguang, L. Yaqing & M. Tao.
Author : David L. Sedlak
Publisher :
ISBN 13 :
Total Pages : 50 pages
Book Rating : 4.3/5 (121 download)
Download or read book The Speciation and Reactivity of Wastewater-derived Organic Nitrogen written by David L. Sedlak and published by . This book was released on 2004 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
