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Carbon Accumulation In Salt Marsh Soils
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Book Synopsis Carbon Accumulation in Salt Marsh Soils by : Viktoria R. Unger
Download or read book Carbon Accumulation in Salt Marsh Soils written by Viktoria R. Unger and published by . This book was released on 2013 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon accumulation in salt marsh soils is a beneficial ecosystem service that occurs as a result of in-situ macrophyte production, slow decomposition, and deposition of allochthonous sediments. Variation in rates of carbon accumulation within and among salt marshes may be influenced by factors including tidal flooding dynamics and sediment availability (Chmura et al. 2003, Mudd et al. 2009, DeLaune and White 2011). In this study, carbon accumulation and biomass dynamics were compared in two distinct estuary types with large differences in sediment availability and tide range. Nine soil cores approximately 60 cm long were collected in Spartina alterniflora-dominated marshes in a coastal plain estuary, Delaware Bay, and a coastal lagoon, Barnegat Bay. Accretion and mass-based accumulation of inorganic matter (sediment), and organic carbon were determined using 137Cs dating. Sediment accumulation rates were seven times greater whereas accretion, organic matter and organic carbon accumulation was two times greater in Delaware Bay than in Barnegat Bay. Accretion and accumulation processes were significantly different between the two estuaries. Inorganic sediment and organic matter in both estuaries contributed to vertical accretion and carbon accumulation. Our data suggest that the high sediment accumulation rates in Delaware Bay increase carbon accumulation rates to some degree, but that the degree to which it enhances carbon accumulation is influenced by some other factor(s). Coarse and fine root morphology in the soil cores was determined and related to sediment, organic matter and organic carbon content at analogous depth sections, as well as accretion and accumulation rates since 1963. Aboveground live and dead biomass was also measured at each core location. In Delaware Bay, the live:dead ratio of aboveground biomass was greater than that of Barnegat Bay. Live aboveground biomass was significantly greater in Delaware Bay, while dead aboveground biomass was slightly greater in Barnegat Bay. In Barnegat Bay there was little to no aboveground biomass at Island Beach and Reedy Creek, and little belowground biomass at Reedy Creek. Aboveground biomass dynamics such as stem density, stem height, and root:shoot ratios did not correlate with carbon accumulation processes at any sites. There were no significant differences in coarse, fine or total root material between the estuaries, however total belowground biomass contributed significantly to the soil carbon inventory in Barnegat Bay but not in Delaware Bay. Comparison of the biomass dynamics with soil characteristics and accretion and accumulation rates further emphasizes that factors other than sediment accumulation may be responsible for some of the differences in carbon accumulation within and among marshes in the two estuaries. The data suggest that belowground biomass may provide structural support to the soil column that is crucial for maintaining accretion and carbon accumulation processes, and more research should be conducted on the role of belowground biomass with respect to carbon accumulation.
Download or read book Blue Carbon written by C. Nellemann and published by UNEP/Earthprint. This book was released on 2009 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report explores the potential for mitigating the impacts of climate change by improved management and protection of marine ecosystems and especially the vegetated coastal habitat, or blue carbon sinks. The objective of this report is to highlight the critical role of the oceans and ocean ecosystems in maintaining our climate and in assisting policy makers to mainstream an oceans agenda into national and international climate change initiatives. While emissions' reductions are currently at the centre of the climate change discussions, the critical role of the oceans and ocean ecosystems has been vastly overlooked.
Book Synopsis Wetland Carbon and Environmental Management by : Ken W. Krauss
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.
Book Synopsis The Management of Natural Coastal Carbon Sinks by : Dan Laffoley
Download or read book The Management of Natural Coastal Carbon Sinks written by Dan Laffoley and published by IUCN. This book was released on 2009 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Concepts and Controversies in Tidal Marsh Ecology by : M.P. Weinstein
Download or read book Concepts and Controversies in Tidal Marsh Ecology written by M.P. Weinstein and published by Springer Science & Business Media. This book was released on 2000-10-31 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tidal salt marshes are viewed as critical habitats for the production of fish and shellfish. As a result, considerable legislation has been promulgated to conserve and protect these habitats, and much of it is in effect today. The relatively young science of ecological engineering has also emerged, and there are now attempts to reverse centuries-old losses by encouraging sound wetland restoration practices. Today, tens of thousands of hectares of degraded or isolated coastal wetlands are being restored worldwide. Whether restored wetlands reach functional equivalency to `natural' systems is a subject of heated debate. Equally debatable is the paradigm that depicts tidal salt marshes as the `great engine' that drives much of the secondary production in coastal waters. This view was questioned in the early 1980s by investigators who noted that total carbon export, on the order of 100 to 200 g m-2 y-1 was of much lower magnitude than originally thought. These authors also recognized that some marshes were either net importers of carbon, or showed no net exchange. Thus, the notion of `outwelling' has become but a single element in an evolving view of marsh function and the link between primary and secondary production. The `revisionist' movement was launched in 1979 when stable isotopic ratios of macrophytes and animal tissues were found to be `mismatched'. Some eighteen years later, the view of marsh function is still undergoing additional modification, and we are slowly unraveling the complexities of biogeochemical cycles, nutrient exchange, and the links between primary producers and the marsh/estuary fauna. Yet, since Teal's seminal paper nearly forty years ago, we are not much closer to understanding how marshes work. If anything, we have learned that the story is far more complicated than originally thought. Despite more than four decades of intense research, we do not yet know how salt marshes function as essential habitat, nor do we know the relative contributions to secondary production, both in situ or in the open waters of the estuary. The theme of this Symposium was to review the status of salt marsh research and revisit the existing paradigm(s) for salt marsh function. Challenge questions were designed to meet the controversy head on: Do marshes support the production of marine transient species? If so, how? Are any of these species marsh obligates? How much of the production takes place in situ versus in open waters of the estuary/coastal zone? Sessions were devoted to reviews of landmark studies, or current findings that advance our knowledge of salt marsh function. A day was also devoted to ecological engineering and wetland restoration papers addressing state-of-the-art methodology and specific case histories. Several challenge papers arguing for and against our ability to restore functional salt marshes led off each session. This volume is intended to serve as a synthesis of our current understanding of the ecological role of salt marshes, and will, it is hoped, pave the way for a new generation of research.
Book Synopsis Mangrove Ecosystems: A Global Biogeographic Perspective by : Victor H. Rivera-Monroy
Download or read book Mangrove Ecosystems: A Global Biogeographic Perspective written by Victor H. Rivera-Monroy and published by Springer. This book was released on 2017-11-03 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive overview and analysis of mangrove ecological processes, structure, and function at the local, biogeographic, and global scales and how these properties interact to provide key ecosystem services to society. The analysis is based on an international collaborative effort that focuses on regions and countries holding the largest mangrove resources and encompasses the major biogeographic and socio-economic settings of mangrove distribution. Given the economic and ecological importance of mangrove wetlands at the global scale, the chapters aim to integrate ecological and socio-economic perspectives on mangrove function and management using a system-level hierarchical analysis framework. The book explores the nexus between mangrove ecology and the capacity for ecosystem services, with an emphasis on thresholds, multiple stressors, and local conditions that determine this capacity. The interdisciplinary approach and illustrative study cases included in the book will provide valuable resources in data, information, and knowledge about the current status of one of the most productive coastal ecosystem in the world.
Book Synopsis Climate Intervention by : National Research Council
Download or read book Climate Intervention written by National Research Council and published by National Academies Press. This book was released on 2015-06-17 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: The signals are everywhere that our planet is experiencing significant climate change. It is clear that we need to reduce the emissions of carbon dioxide and other greenhouse gases from our atmosphere if we want to avoid greatly increased risk of damage from climate change. Aggressively pursuing a program of emissions abatement or mitigation will show results over a timescale of many decades. How do we actively remove carbon dioxide from the atmosphere to make a bigger difference more quickly? As one of a two-book report, this volume of Climate Intervention discusses CDR, the carbon dioxide removal of greenhouse gas emissions from the atmosphere and sequestration of it in perpetuity. Climate Intervention: Carbon Dioxide Removal and Reliable Sequestration introduces possible CDR approaches and then discusses them in depth. Land management practices, such as low-till agriculture, reforestation and afforestation, ocean iron fertilization, and land-and-ocean-based accelerated weathering, could amplify the rates of processes that are already occurring as part of the natural carbon cycle. Other CDR approaches, such as bioenergy with carbon capture and sequestration, direct air capture and sequestration, and traditional carbon capture and sequestration, seek to capture CO2 from the atmosphere and dispose of it by pumping it underground at high pressure. This book looks at the pros and cons of these options and estimates possible rates of removal and total amounts that might be removed via these methods. With whatever portfolio of technologies the transition is achieved, eliminating the carbon dioxide emissions from the global energy and transportation systems will pose an enormous technical, economic, and social challenge that will likely take decades of concerted effort to achieve. Climate Intervention: Carbon Dioxide Removal and Reliable Sequestration will help to better understand the potential cost and performance of CDR strategies to inform debate and decision making as we work to stabilize and reduce atmospheric concentrations of carbon dioxide.
Book Synopsis Status and Trends of Wetlands in the Conterminous United States 2004 to 2009 by : Thomas E. Dahl
Download or read book Status and Trends of Wetlands in the Conterminous United States 2004 to 2009 written by Thomas E. Dahl and published by . This book was released on 2011 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data from status and trends provide important long-term trend information about specific changes and places and the overall status of wetlands in the United States. The historical data base that the Service has developed through Status and Trends, provides photographic evidence of land use and wetlands extent dating back to the 1950s. This provides an accurate record to assist in future restoration efforts.--Publisher description.
Book Synopsis Biogeochemistry of Wetlands by : K. Ramesh Reddy
Download or read book Biogeochemistry of Wetlands written by K. Ramesh Reddy and published by CRC Press. This book was released on 2022-09-10 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis The Wetland Book by : C. Max Finlayson
Download or read book The Wetland Book written by C. Max Finlayson and published by Springer. This book was released on 2018-07-04 with total page 1546 pages. Available in PDF, EPUB and Kindle. Book excerpt: In discussion with Ramsar’s Max Finlayson and Nick Davidson, and several members of the Society of Wetland Scientists, Springer is proposing the development of a new Encyclopedia of Wetlands, a comprehensive resource aimed at supporting the trans- and multidisciplinary research and practice which is inherent to this field. Aware both that wetlands research is on the rise and that researchers and students are often working or learning across several disciplines, we are proposing a readily accessible online and print reference which will be the first port of call on key concepts in wetlands science and management. This easy-to-follow reference will allow multidisciplinary teams and transdisciplinary individuals to look up terms, access further details, read overviews on key issues and navigate to key articles selected by experts.
Book Synopsis Coastal Wetlands by : Gerardo M.E. Perillo
Download or read book Coastal Wetlands written by Gerardo M.E. Perillo and published by Elsevier. This book was released on 2009-01-18 with total page 975 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coastal wetlands are under a great deal of pressure from the dual forces of rising sea level and the intervention of human populations both along the estuary and in the river catchment. Direct impacts include the destruction or degradation of wetlands from land reclamation and infrastructures. Indirect impacts derive from the discharge of pollutants, changes in river flows and sediment supplies, land clearing, and dam operations. As sea level rises, coastal wetlands in most areas of the world migrate landward to occupy former uplands. The competition of these lands from human development is intensifying, making the landward migration impossible in many cases. This book provides an understanding of the functioning of coastal ecosystems and the ecological services that they provide, and suggestions for their management. In this book a CD is included containing color figures of wetlands and estuaries in different parts of the world. Includes a CD containing color figures of wetlands and estuaries in different parts of the world.
Book Synopsis Carbon Stocks and Accumulation Rates in Salt Marshes of the Pacific Coast of Canada by : Stephen Chastain
Download or read book Carbon Stocks and Accumulation Rates in Salt Marshes of the Pacific Coast of Canada written by Stephen Chastain and published by . This book was released on 2017 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: We estimated carbon stocks and carbon accumulation rates using 34 sediment cores collected from seven salt marshes within the Clayoquot Sound UNESCO Biosphere Reserve and Pacific Rim National Park Reserve of Canada (49.2° N, 125.80° W). Carbon stocks averaged 80.6 ± 43.8 Mg C ha-1 between the seven salt marshes, and carbon accumulation rates averaged 146 ± 102 g C m-2 yr -1. These rates are comparable to those found in salt marshes further south along the Pacific coast of North America (32.5-38.2° N) and at similar latitudes in Eastern Canada and Northern Europe (43.6-55.5° N). The seven Clayoquot Sound salt marshes currently accumulate carbon at a rate of 54.28 Mg C yr-1 over an area of 46.94 ha, 87 % of which occurs in the high marsh zone. On a per-hectare basis, Clayoquot Sound salt marsh soils accumulate carbon at least one order of magnitude more quickly than the average of global boreal forest soils. This carbon accumulation capacity provides a climate mitigation co-benefit when conserving for other salt marsh ecosystem services.
Book Synopsis Soil Carbon by : Alfred E. Hartemink
Download or read book Soil Carbon written by Alfred E. Hartemink and published by Springer Science & Business Media. This book was released on 2014-04-01 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: Few topics cut across the soil science discipline wider than research on soil carbon. This book contains 48 chapters that focus on novel and exciting aspects of soil carbon research from all over the world. It includes review papers by global leaders in soil carbon research, and the book ends with a list and discussion of global soil carbon research priorities. Chapters are loosely grouped in four sections: § Soil carbon in space and time § Soil carbon properties and processes § Soil use and carbon management § Soil carbon and the environment A wide variety of topics is included: soil carbon modelling, measurement, monitoring, microbial dynamics, soil carbon management and 12 chapters focus on national or regional soil carbon stock assessments. The book provides up-to-date information for researchers interested in soil carbon in relation to climate change and to researchers that are interested in soil carbon for the maintenance of soil quality and fertility. Papers in this book were presented at the IUSS Global Soil C Conference that was held at the University of Wisconsin-Madison, USA.
Book Synopsis Structural Equation Modeling and Natural Systems by : James B. Grace
Download or read book Structural Equation Modeling and Natural Systems written by James B. Grace and published by Cambridge University Press. This book was released on 2006-08-17 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, first published in 2006, presents an introduction to the methodology of structural equation modeling, illustrates its use, and goes on to argue that it has revolutionary implications for the study of natural systems. A major theme of this book is that we have, up to this point, attempted to study systems primarily using methods (such as the univariate model) that were designed only for considering individual processes. Understanding systems requires the capacity to examine simultaneous influences and responses. Structural equation modeling (SEM) has such capabilities. It also possesses many other traits that add strength to its utility as a means of making scientific progress. In light of the capabilities of SEM, it can be argued that much of ecological theory is currently locked in an immature state that impairs its relevance. It is further argued that the principles of SEM are capable of leading to the development and evaluation of multivariate theories of the sort vitally needed for the conservation of natural systems.
Book Synopsis Soil Carbon Sequestration and Carbon Market Potential of a Southern California Tidal Salt Marsh Proposed for Restoration by : Todd Michael Bear
Download or read book Soil Carbon Sequestration and Carbon Market Potential of a Southern California Tidal Salt Marsh Proposed for Restoration written by Todd Michael Bear and published by . This book was released on 2017 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: Without a substantial reduction in the billions of tons of anthropogenic greenhouse gases emitted annually our planet can expect a wide variety of deleterious effects. The restoration, enhancement, and conservation of coastal "blue carbon" habitats, including tidal salt marshes, have received increasing attention as a potential component of climate change mitigation because of their high carbon storage capacity. This study presents the results of an investigation of soil carbon sequestration within a degraded Mediterranean-type climate tidal salt marsh in southern California, the Ballona Wetlands. Results from the Ballona Wetlands soil analyses and data from existing tidal marsh studies are used to estimate the change in soil carbon accumulation resulting from the proposed Ballona Wetlands Restoration Project (Ballona Project) as compared to the existing condition. Finally, this study demonstrates the process of using an existing carbon market methodology, VCS Methodology for Tidal Wetland and Seagrass Restoration VM0033 (2015, V 1.0), to calculate the number of carbon credits that could potentially be generated for the Ballona Project. The results presented in Chapter 3 show that the existing tidal marsh habitats of the Ballona Wetlands contain soil organic carbon densities ranging from 0.018 to 0.030 g/cm3. Averaging SOC densities by habitat type resulted in a range of 0.022 to 0.027 g C/cm3, which is similar to natural tidal marshes around the world. Percent organic carbon is highest in low marsh habitat and decreases with increasing marsh habitat elevation (low > mid > high). However, carbon density is lowest in low marsh habitat and increases with increasing habitat elevation (low
Author :International Council of Scientific Unions. Scientific Committee on Problems of the Environment Publisher :John Wiley & Sons ISBN 13 : Total Pages :418 pages Book Rating :4.:/5 (318 download)
Book Synopsis Carbon Cycle Modelling by : International Council of Scientific Unions. Scientific Committee on Problems of the Environment
Download or read book Carbon Cycle Modelling written by International Council of Scientific Unions. Scientific Committee on Problems of the Environment and published by John Wiley & Sons. This book was released on 1981 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biogeochemistry of Estuaries by : Thomas S. Bianchi
Download or read book Biogeochemistry of Estuaries written by Thomas S. Bianchi and published by Oxford University Press. This book was released on 2007 with total page 721 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
