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Groundwater Surface Water Interactions In A Wetland Influenced Coastal Plain Watershed
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Book Synopsis Groundwater Surface-water Interactions in a Wetland-influenced Coastal Plain Watershed by : John Spotswood Pollard
Download or read book Groundwater Surface-water Interactions in a Wetland-influenced Coastal Plain Watershed written by John Spotswood Pollard and published by . This book was released on 1992 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil Influences on Water Balance in Wetlands May Impact Wetland Effectiveness in Achieving Different Restoration Objectives by :
Download or read book Soil Influences on Water Balance in Wetlands May Impact Wetland Effectiveness in Achieving Different Restoration Objectives written by and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes a study that explores how surface water and groundwater interactions vary with soil hydraulic conditions (e.g., low vs. high soil permeability) in the Mid-Atlantic Coastal Plain. In addition, implications of wetland soil characteristics on wetland restoration and management are discussed in the report. Analysis indicates there is less interaction between surface water and groundwater in wetlands with low permeability subsurface soils than in wetlands with high permeability subsurface soils. Groundwater levels had little impact on surface water levels when subsurface soils were of low permeability. In contrast the wetland with highly permeable subsurface soils showed a more consistent relationship between surface water level and groundwater level, and greater contribution of groundwater to wetland surface water. These results have implications for conservation planning and wetland restoration. Wetland restoration over low permeability soils may yield a higher carbon holding capacity and may be more effective at nitrogen removal via denitrification because of the potential for the wetland to maintain surface water for longer periods of time
Book Synopsis Groundwater-surface Water Interaction by : Corinna Abesser
Download or read book Groundwater-surface Water Interaction written by Corinna Abesser and published by . This book was released on 2008 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selected papers from a symposium on A new Focus on Integrated Analysis of Groundwater-Surface Water Systems, held during the International Union of Geodesy and Geophysics XXIV General Assembly in Perugia, Italy, 11-13 July 2007.
Book Synopsis Groundwater and Surface Water Interactions at the Tijuana Estuary, San Diego County, California by : Steven L. Stuart
Download or read book Groundwater and Surface Water Interactions at the Tijuana Estuary, San Diego County, California written by Steven L. Stuart and published by . This book was released on 2008 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Watershed Hydrology by : Vijay P. Singh
Download or read book Watershed Hydrology written by Vijay P. Singh and published by Allied Publishers. This book was released on 2003 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Groundwater-surface Water Interactions in Wetlands for Integrated Water Resources Management by :
Download or read book Groundwater-surface Water Interactions in Wetlands for Integrated Water Resources Management written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Riparian Areas by : National Research Council
Download or read book Riparian Areas written by National Research Council and published by National Academies Press. This book was released on 2002-10-10 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Clean Water Act (CWA) requires that wetlands be protected from degradation because of their important ecological functions including maintenance of high water quality and provision of fish and wildlife habitat. However, this protection generally does not encompass riparian areasâ€"the lands bordering rivers and lakesâ€"even though they often provide the same functions as wetlands. Growing recognition of the similarities in wetland and riparian area functioning and the differences in their legal protection led the NRC in 1999 to undertake a study of riparian areas, which has culminated in Riparian Areas: Functioning and Strategies for Management. The report is intended to heighten awareness of riparian areas commensurate with their ecological and societal values. The primary conclusion is that, because riparian areas perform a disproportionate number of biological and physical functions on a unit area basis, restoration of riparian functions along America's waterbodies should be a national goal.
Book Synopsis Groundwater and Surface Water by : Thomas C. Winter
Download or read book Groundwater and Surface Water written by Thomas C. Winter and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Surface Water - Groundwater Interactions in a Tidal Marsh Plain by : Marcia Susan Greenblatt
Download or read book Surface Water - Groundwater Interactions in a Tidal Marsh Plain written by Marcia Susan Greenblatt and published by . This book was released on 1997 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the groundwater/surfacewater interactions workshop by :
Download or read book Proceedings of the groundwater/surfacewater interactions workshop written by and published by DIANE Publishing. This book was released on 2000 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling Steady State Groundwater and Surface Water Interactions by : Sherry Mitchell-Bruker
Download or read book Modeling Steady State Groundwater and Surface Water Interactions written by Sherry Mitchell-Bruker and published by . This book was released on 1993 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Assessment of the Ecological Impacts of Ground Water Overdraft on Wetlands and Riparian Areas in the United States by : Cheryl Grantham
Download or read book An Assessment of the Ecological Impacts of Ground Water Overdraft on Wetlands and Riparian Areas in the United States written by Cheryl Grantham and published by . This book was released on 1996 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Paper SRS written by and published by . This book was released on 1996 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Groundwater - Vegetation - Atmosphere Interactions in an Intertidal Salt Marsh by : Kevan Bauer Moffett
Download or read book Groundwater - Vegetation - Atmosphere Interactions in an Intertidal Salt Marsh written by Kevan Bauer Moffett and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A large fraction of coastal wetlands worldwide have been severely impacted by development, resulting in among the highest losses of any wetland type. Necessary improvements in restoration and management of coastal wetlands require a better scientific understanding of the underlying plant-water interactions, or ecohydrology. This research developed a new conceptual model of intertidal salt marsh ecohydrology to define the relative roles of: tidal flooding, groundwater flow, vegetation zonation, and plant water uptake. Spatial and temporal variations in plant-water interactions were observed over three years at a field site in the Palo Alto Baylands, California. Three-dimensional numerical simulations of the coupled surface water and unsaturated groundwater flow and evapotranspiration (ET) at the site were used to explore the links between marsh vegetation and hydrology. /// Vegetation zonation is one of the most distinctive properties of salt marshes, yet had not been combined with physics-based hydrologic analysis prior to this research. Statistical analysis showed that vegetation zones at the field site were not correlated with traditional proxies for hydrologic influences such as elevation and distance-to-channel. Vegetation zonation was strongly correlated with a metric describing the spatial patterns of tidally-induced changes in salt marsh soil saturation and salinity. This metric was developed based on time-lapse imaging of bulk soil electrical conductivity and a new geophysical analysis method, Quantitative Differential Electromagnetic Induction imaging (Q-DEMI). /// Spatial variations in vegetation water use within and among vegetation zones were investigated in detail using centimeter-resolution thermal infrared (TIR) remote sensing. Well-established latent heat models were adapted to use spatially-variable canopy stomatal resistances. The detailed stomatal resistance maps were determined from the TIR data in a biophysically realistic manner by a new method. In principle, the stomatal resistance mapping method is applicable at scales from leaves (such as in this study) to landscapes. /// The dynamics of plant-water interactions originating at the leaf scale were also detectable in marsh-scale eddy covariance and meteorological field data. Alternating daytime tidal flooding and exposure shifted the marsh surface energy balance: from similar to a well-watered lawn during flooding, to similar to a sparse crop during exposure. The net ecosystem exchange of carbon dioxide was also temporarily suppressed in proportion to flood depth and duration, further indicating close plant-water coupling in the intertidal salt marsh environment. /// These spatial and temporal plant-water interactions occur within a larger context governed by the tidal regime and coastal groundwater flow. Continuous measurements of groundwater potential characterized marsh groundwater dynamics and provided evidence of sediment heterogeneity at the field site. In three dimensional, coupled groundwater-surface water simulations, the sediment heterogeneity affected both the balance between creek bank and interior marsh hydrologic processes and the spatial distribution of groundwater-surface water exchange. In the field, similar groundwater discharge zones were located in the tidal channels by fiber-optic distributed temperature sensing (DTS). The DTS data also provided the first description of the salt marsh benthic thermal regime, a system co-dominated by groundwater discharge and an ephemeral "tidal thermal blanket." /// Spatial variability in ET and rooting depth due to vegetation zonation were incorporated into a numerical model to represent the ecohydrologic system. The zonally-distributed ET and rooting depths caused notable spatial variations in hydrologic conditions in the marsh root zone, including significant variations in unsaturated pressure head and soil saturation. Modest control of salt marsh water table depth by vegetation following flooding tides was simulated throughout the field site, in accord with the prevailing conceptual model of salt marsh plant-water interactions. The simulations also suggested four additional classes of ecohydrologic dynamics apparent under conditions of prolonged marsh exposure. The four new classes of ecohydrological behavior were distinguished by combinations of relatively high or low soil permeability and high or low ET rate. Together, patterns in vegetation and soil permeability thus created distinctive "ecohydrological zones." In some cases, the contrast among such ecohydrological zones caused upward and downward groundwater flow regions to be spatially juxtaposed, suggesting future research into soil biogeochemistry at these sites may be interesting. /// In summary, a new conceptual model of salt marsh ecohydrology is based on a definition of "ecohydrological zones" as the relevant unit of structure and function within the salt marsh ecohydrological system. Distinctive ecohydrological zones are created by hydraulic interactions between groundwater, vegetation, and the atmosphere. The specific nature of each zone depends both on the soil hydraulic properties resulting from the local geomorphological history and on the plant water uptake and transpiration governed by each plant species' unique physiology. The set of ecohydrological zones within a salt marsh are nested, in turn, within a coarser hydrologic system structure imposed by the tidal regime and larger intertidal groundwater flow system.
Book Synopsis The Becher Wetlands - A Ramsar Site by : Christine Semeniuk
Download or read book The Becher Wetlands - A Ramsar Site written by Christine Semeniuk and published by Springer Science & Business Media. This book was released on 2007-01-03 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a landmark study of the Holocene evolution and functioning of a suite of seasonal wetland basins in the temperate coastal zone of Western Australia, which were added to the the Ramsar List of Wetlands of International Importance because of their setting, their method of formation and deepening, their history of infilling, their complex hydrological mechanisms, and their dynamic hydrochemical and vegetation responses.
Book Synopsis Ground Water/surface Water Interactions by : American Water Resources Association. Summer Specialty Conference
Download or read book Ground Water/surface Water Interactions written by American Water Resources Association. Summer Specialty Conference and published by . This book was released on 2002 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wetland Ecosystems by : William J. Mitsch
Download or read book Wetland Ecosystems written by William J. Mitsch and published by John Wiley & Sons. This book was released on 2009-04-13 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: New focused text introduces readers to wetland ecosystems and systems approaches to studying wetlands With its comprehensive coverage of wetland science, management, and restoration, Mitsch and Gosselink's Wetlands has been the premier reference on wetlands for more than two decades. Now, the coverage of specific wetland ecosystem types from earlier editions of this acclaimed work has been updated, revised, and supplemented with additional content in order to create this new text focusing exclusively on wetland ecosystems. This book now complements Wetlands, Fourth Edition. Following an introduction to ecosystems in general and wetland ecosystems in particular, Wetland Ecosystems examines the major types of wetlands found throughout the world: coastal wetlands, freshwater marshes and forested swamps, and peatlands. The final chapter reviews three fundamental systems approaches to studying wetlands: mesocosms, full-scale experimental ecosystems, and mathematical modeling. This new text features: Updated descriptions of the hydrology, biogeochemistry, and biology of the main types of wetlands found in the world New content introducing general ecosystems, wetland ecosystems, whole ecosystem and mesocosm experiments with wetlands, and systems ecology and modeling A detailed description of the ecosystem services provided by wetlands A broad international scope, including many examples of wetlands located outside North America Two new coauthors offering new perspectives and additional insights into the latest ecosystem and modeling techniques An abundance of illustrations helps readers understand how different biological communities and the abiotic environment in wetland ecosystems interact and function. Tables and text boxes provide at-a-glance summaries of key information. Lastly, each chapter concludes with a list of recommended readings. This text has been designed as an introduction for students and professionals in wetland ecology and management, general ecology, environmental science, and natural resource management.