Download or read book Continental Erosion and River Transport of Organic Carbon to the World s Oceans written by Wolfgang Ludwig and published by . This book was released on 1999 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Continental Erosion and River Transport of Organic Carbon to the World s Oceans written by Philippe Amiotte Suchet and published by . This book was released on 1995 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CONTINENTAL EROSION AND RIVER TRANSPORT OF ORGANIC CARBON TO THE WORLD S OCEANS written by Wolfgang Ludwig (géochimiste).) and published by . This book was released on 1996 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'OBJECTIF SCIENTIFIQUE DE CETTE ETUDE EST DE QUANTIFIER A L'ECHELLE GLOBALE LES FLUX DE CARBONE ORGANIQUE APPORTES CHAQUE ANNEES AUX OCEANS, AFIN D'EVALUER LE ROLE DE CES FLUX DANS LE CYCLE GLOBAL DU CARBONE. LES FLUX DE CARBONE ORGANIQUE CONCERNENT, DE MANIERE A PEU PRES EQUIVALENTE, LE CARBONE ORGANIQUE DISSOUS (COD) ET LE CARBONE ORGANIQUE PARTICULAIRE (COP). POUR CES DEUX FORMES DE CARBONE, LES FACTEURS DE CONTROLE SONT IDENTIFIES ET DES MODELES EMPIRIQUES SONT ETABLI POUR EXTRAPOLER LES FLUX A L'ECHELLE GLOBALE ET REGIONALE. CES FLUX ETANT FORTEMENT ASSOCIES AUX FLUX D'EAU (COD, COP) ET DE SEDIMENTS (COP), UNE TELLE INVESTIGATION N'EST POSSIBLE QU'AVEC UN EXAMEN DETAILLE DES FACTEURS PRINCIPAUX DE CONTROLE DE CES DEUX PARAMETRES CLES A L'ECHELLE GLOBALE. L'APPROCHE DE CETTE ETUDE EST BASEE SUR UN ENSEMBLE DE 60 GRANDS FLEUVES DU MONDE. LES CARACTERISTIQUES HYDROCLIMATIQUES, BIOLOGIQUES, GEOMORPHOLOGIQUES ET LITHOLOGIQUES DES BASSINS VERSANTS DE CES FLEUVES SONT EXTRAITES D'UN GRAND NOMBRE DE BANQUES DE DONNEES GLOBALES A PARTIR DES CONTOURS DIGITALISES DE CES BASSINS. ENSUITE, CES CARACTERISTIQUES SONT UTILISEES POUR DES ANALYSES STATISTIQUES AVEC LES DONNEES DE LA LITTERATURE SUR LES FLUX DE CARBONE, D'EAU ET DES SEDIMENTS DANS CES FLEUVES. LORSQU'ON APPLIQUE LE MODELE DE REGRESSION POUR LE COD A LA SURFACE TOTALE DES CONTINENTS A PARTIR DE L'ENSEMBLE DES DONNEES EXISTANTES, LA QUANTITE TOTALE DE CARBONE ORGANIQUE DISSOUS EXPORTE VERS LES OCEANS EST ESTIMEE A ENVIRON 0,21 GIGATONNES DE CARBONE PAR AN (GTC/AN). POUR LE COP, CETTE QUANTITE EST D'ENVIRON 0,16 GTC/AN. LES FLUX CORRESPONDANT D'EAUX ET DE SEDIMENTS SONT RESPECTIVEMENT DE 44400 KM#3/AN ET 16 GT/AN. POUR TOUS CES TRANSPORTS FLUVIAUX, DES CARTES GLOBALES REPRESENTANT LA DISTRIBUTION SPATIALE DES FLUX SPECIFIQUES SUR LES CONTINENTS SONT AINSI PRESENTEES, ET DES BILANS DETAILLES SONT PROPOSES POUR LES DIFFERENTS CONTINENTS, BASSINS OCEANIQUES ET TYPE DE CLIMATS. FINALEMENT, LA MODELISATION DES TRANSPORTS FLUVIAUX DE CARBONE ORGANIQUE EST COUPLEE A UNE MODELISATION DE CARBONE INORGANIQUE DEVELOPPEE PAR AMIOTTE-SUCHET 1995.
Download or read book Continental Erosion and River Transport of Organic Carbon to the World s Oceans written by Wolfgang Ludwig and published by . This book was released on 1997 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Organic Carbon Cycle in the Arctic Ocean written by Rüdiger Stein and published by Springer Science & Business Media. This book was released on 2011-06-27 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: The flux, preservation, and accumulation of organic carbon in marine systems are controlled by various mechanisms including primary p- duction of the surface water, supply of terrigenous organic matter from the surrounding continents, biogeochemical processes in the water column and at the seafloor, and sedimentation rate. For the world's oceans, phytoplankton productivity is by far the largest organic carbon 9 source, estimated to be about 30 to 50 Gt (10 tonnes) per year (Berger et al. 1989; Hedges and Keil 1995). By comparison, rivers contribute -1 about 0. 15 to 0. 23 Gt y of particulate organi.
Download or read book Soil Erosion and Carbon Dynamics written by Eric J. Roose and published by CRC Press. This book was released on 2005-12-09 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most complete, nonpartisan source of information on this hot agronomic topic available today, this book brings together a diverse group of papers and data to resolve the debate between sedimentologists and soil scientists and agronomists over whether the effects of soil erosion on carbon and atmospheric CO2 is beneficial or destructive. Divided into four sections, it offers data on how soil erosion affects soil, water, and air quality. Topics include mineralization rate, inundation, sediment deposition, and global warming potential, as well as carbon dioxide, methane, and nitrous oxide emissions, and the implications of soil erosion on the global carbon cycle and carbon budget.
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 Biogeochemistry of Inland Waters written by Gene E. Likens and published by Academic Press. This book was released on 2010-05-20 with total page 745 pages. Available in PDF, EPUB and Kindle. Book excerpt: A derivative of the Encyclopedia of Inland Waters, Biogeochemistry of Inland Waters examines the transformation, flux and cycling of chemical compounds in aquatic and terrestrial ecosystems, combining aspects of biology, ecology, geology, and chemistry. Because the articles are drawn from an encyclopedia, they are easily accessible to interested members of the public, such as conservationists and environmental decision makers. - This derivative text describes biogeochemical cycles of organic and inorganic elements and compounds in freshwater ecosystems
Download or read book Treatise on Estuarine and Coastal Science written by and published by Academic Press. This book was released on 2012-03-06 with total page 4604 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of estuaries and coasts has seen enormous growth in recent years, since changes in these areas have a large effect on the food chain, as well as on the physics and chemistry of the ocean. As the coasts and river banks around the world become more densely populated, the pressure on these ecosystems intensifies, putting a new focus on environmental, socio-economic and policy issues. Written by a team of international expert scientists, under the guidance of Chief Editors Eric Wolanski and Donald McClusky, the Treatise on Estuarine and Coastal Science, Ten Volume Set examines topics in depth, and aims to provide a comprehensive scientific resource for all professionals and students in the area of estuarine and coastal science Most up-to-date reference for system-based coastal and estuarine science and management, from the inland watershed to the ocean shelf Chief editors have assembled a world-class team of volume editors and contributing authors Approach focuses on the physical, biological, chemistry, ecosystem, human, ecological and economics processes, to show how to best use multidisciplinary science to ensure earth's sustainability Provides a comprehensive scientific resource for all professionals and students in the area of estuarine and coastal science Features up-to-date chapters covering a full range of topics
Download or read book The Changing Ocean Carbon Cycle written by Roger B. Hanson and published by Cambridge University Press. This book was released on 2000-01-13 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world's oceans act as a reservoir, with the capacity to absorb and retain carbon dioxide. The air-sea exchange of carbon is driven by physico-chemical forces, photosynthesis, and respiration, and has an important influence on atmospheric composition. Variability in the ocean carbon cycle could therefore exert significant feedback effects during conditions of climate change. The Joint Global Ocean Flux Study (JGOFS) is the first multidisciplinary program to directly address the interactions among the biology, chemistry, and physics of marine systems, with emphasis on the transport and transformations of carbon within the ocean and across its boundaries. This unique volume, written by an international panel of scientists, provides a synthesis of JGOFS science and its achievements to date. The authoritative chapters will be of great interest to readers seeking a current overview of the role of ocean processes in Earth system science and their wider implications for climate change.
Download or read book The Ocean Carbon Cycle and Climate written by Mick Follows and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our desire to understand the global carbon cycle and its link to the climate system represents a huge challenge. These overarching questions have driven a great deal of scientific endeavour in recent years: What are the basic oceanic mechanisms which control the oceanic carbon reservoirs and the partitioning of carbon between ocean and atmosphere? How do these mechanisms depend on the state of the climate system and how does the carbon cycle feed back on climate? What is the current rate at which fossil fuel carbon dioxide is absorbed by the oceans and how might this change in the future? To begin to answer these questions we must first understand the distribution of carbon in the ocean, its partitioning between different ocean reservoirs (the "solubility" and "biological" pumps of carbon), the mechanisms controlling these reservoirs, and the relationship of the significant physical and biological processes to the physical environment. The recent surveys from the JGOFS and WOCE (Joint Global Ocean Flux Study and World Ocean Circulation Ex periment) programs have given us a first truly global survey of the physical and biogeochemical properties of the ocean. These new, high quality data provide the opportunity to better quantify the present oceans reservoirs of carbon and the changes due to fossil fuel burning. In addition, diverse process studies and time-series observations have clearly revealed the complexity of interactions between nutrient cycles, ecosystems, the carbon-cycle and the physical envi ronment.
Download or read book Weathering and the Riverine Denudation of Continents written by Pedro José Depetris and published by Springer Science & Business Media. This book was released on 2013-11-19 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this monograph the authors present an overview of the state-of-the-art and use examples or case histories to illustrate the combined role of rock decay and rivers on continental denudation. The Earth’s surface dynamics would not be conceivable without the fundamental component of rock weathering and the subsequent transport of solid debris and dissolved components to the coastal ocean through riverine drainage pathways. In other words, continental wear away is highly dependent on the mechanisms that control mineral decay. Moreover, besides the significant role played by rivers in shaping the Earth’s outer skin, there is the important function that rivers perform in all geochemical cycles, mediating between the lithosphere, the hydrosphere, the biosphere and the hydrosphere. Drainage basins and the weathering of rocks that occur therein may be significant sources (or sinks) of carbon dioxide and, hence, play a significant role in affecting the Earth’s climate.
Download or read book Carbon and Nutrient Fluxes in Continental Margins written by Kon-Kee Liu and published by Springer Science & Business Media. This book was released on 2010-02-11 with total page 757 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a product of the joint JGOFS (Joint Global Ocean Flux Study)/LOICZ (Land–Ocean Interactions in the Coastal Zone) Continental Margins Task Team which was established to facilitate continental margins research in the two projects. It contains signi cant information on the physical, biogeochemical, and ecosystems of continental margins nationally and regionally and provides a very valuable synthesis of this information and the physical, biogeochemical and ecosystem processes which occur on continental margins. The publication of this book is timely as it provides a very strong foundation for the development of the joint IMBER (Integrated Marine Biogeochemistry and Ecosystems Research)/LOICZ Science Plan and Implemen- tion Strategy for biogeochemical and ecosystems research in the continental margins and the impacts of global change on these systems. This initiative will move forward integrated biogeochemical and ecosystems research in the continental margins. We thank all the contributors to this volume and especially Kon-Kee Liu who has dedicated a great deal of time to ensuring a high-quality book is published. IMBER Scienti c Steering Committee Julie Hall LOICZ Scienti c Steering Committee Jozef Pacyna v 1 Preface In general, interfaces between the Earth’s larger material reservoirs (i. e. , the land, atmosphere, ocean, and sediments) are important in the control of the biogeoche- cal dynamics and cycling of the major bio-essential elements, including carbon (C), nitrogen (N), phosphorus (P), sulfur (S), and silicon (Si), found in organic matter and the inorganic skeletons, shells, and tests of benthic and marine organisms.
Download or read book Soils and Global Change written by John M. Kimble and published by CRC Press. This book was released on 1995-03-23 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: The pedosphere - the thin mantel of soil on the earth's surface - plays a potentially crucial role in climate and climate change . The carbon storage of soils is the second largest in the biosphere, making the dynamics of soil organic carbon an important issue that must be understood if we are to fully comprehend global change. This new book examines the importance of soils and their relationship to global change, specifically to the greenhouse effect. Soils and Global Change presents a state-of-the-art compendium of our present knowledge of soils. This up-to-date information source enables readers to delve into the literature about soils and climate change and examine soils in both natural and managed environments.
Download or read book Biogeochemistry of Marine Dissolved Organic Matter written by Dennis A. Hansell and published by Elsevier. This book was released on 2024-07-04 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biogeochemistry of Marine Dissolved Organic Matter, 3rd edition is the most up-to-date revision of the fundamental reference for the biogeochemistry of marine dissolved organic matter. Since its original publication in June 2002, the science, questions, and priorities have advanced, and the editors of this essential guide, have added nine new chapters, including one on the South China Sea. An indispensable manual edited by the most distinguished experts in the field, this book is addressed to graduate students, marine scientists, and all professionals interested in advancing their knowledge of the field. Features up-to-date knowledge on DOM, including 9 new chapters Presents the only published work to synthesize recent research on dissolved organic carbon in the South China, a region receiving a great deal of attention in recent decades Offers contributions by world-class research leaders
Download or read book Erosion and Sediment Yield written by D. E. Walling and published by . This book was released on 1996 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Global Coastal Ocean Panregional syntheses and the coasts of North and South America and Asia written by Allan R. Robinson and published by Harvard University Press. This book was released on 1962 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt: A continuing, comprehensive and timely survey of the state of knowledge of ocean science, this distinguished series provides an overview of research frontiers as ocean science progresses. Areas covered include physical, biological, and chemical oceanography, marine geology, and geophysics and the interactions of the oceans with the atmosphere, the solid earth, and ice. Because ocean science is evolving so rapidly, straining the boundaries of traditional sub-disciplines, interdisciplinary topics have a special place in this series--including those topics related to the application of ocean science, for example, to ocean technology, marine operations, and the resources of the sea. As a treatise on advances and new developments, each topical volume starts with fundamentals and covers recent progress, so as to provide a balanced account of how oceanography is evolving. Previous volumes (1-12) in the series are now available from Harvard University Press. In the manifold, multidisciplinary efforts of.
