Gotowe bibliografie tematyczne / Floodplain

Gotowa bibliografia na temat „Floodplain”

Autor: Grafiati
Data publikacji: 4 czerwca 2021
Data aktualizacji: 21 lutego 2023

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Artykuły w czasopismach na temat "Floodplain"

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Nafikova, Elvira, Dmitry Alexandrov, Anastasia Platonova, Kamila Gayanova i Kamilla Chuvashaeva. "Depletion of the floodplain-channel complex of the river (Belaya river, Republic of Bashkortostan)". E3S Web of Conferences 244 (2021): 01012. http://dx.doi.org/10.1051/e3sconf/202124401012.

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The article presents a comprehensive assessment of the geoecological risk of the Belaya River floodplain (Republic of Bashkortostan, Russia). The risk assessment of the floodplain-channel complex includes the risk of depletion by the plant species composition and the risk of depletion of the ecological and hydrological states. Geographic information maps of the floodplain were compiled for vegetation and floodplain forests and wetlands. The extent of forest cover was chosen as an indicator of the floodplain’s resilience to the risk of depletion and decline. The calculation of the risk of depletion of floodplains based on the ecological and hydrological state was carried out taking into account the changes in floodplain areas over the past 10 years, data on the catchment of ground and surface waters, “sealed” areas and the annual average discharge. The assessment and zoning of the river floodplain territory was carried out according to the proposed method.
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Eder, Markus, Francesca Perosa, Severin Hohensinner, Michael Tritthart, Sabrina Scheuer, Marion Gelhaus, Bernd Cyffka i in. "How Can We Identify Active, Former, and Potential Floodplains? Methods and Lessons Learned from the Danube River". Water 14, nr 15 (24.07.2022): 2295. http://dx.doi.org/10.3390/w14152295.

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Floodplains are a fundamental source of multiple functions and services. Despite their various benefits, a dramatic reduction in floodplain areas has occurred in most large river systems over the last few centuries, and is still ongoing. Human modifications (such as river regulation, dam construction, and land use changes) due to economic growth, increasing population size, etc., were and still are drivers of major floodplain losses. Therefore, studies offering solutions for floodplain preservation and restoration are of great importance for sustainable floodplain management. This paper presents methods to identify active, former, and potential floodplains, and their application to the Danube River. We used hydraulic data, historical sources, and recent geospatial data to delineate the three floodplain types. Fifty hydraulically active floodplains larger than 500 ha were identified. According to our results, the extent of Danube floodplains has been reduced by around 79%. With the support of different representatives from the Danube countries, we identified 24 potential floodplains. However, the share of active and potential floodplains in relation to former floodplains ranges between 5% and 49%, demonstrating the huge potential for additional restoration sites. This analysis contributes to an understanding of the current and the past floodplain situation, increases awareness of the dramatic floodplain loss along the Danube, and serves as a basis for future floodplain management.
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Hughes, Francine M. R. "Floodplain biogeomorphology". Progress in Physical Geography: Earth and Environment 21, nr 4 (grudzień 1997): 501–29. http://dx.doi.org/10.1177/030913339702100402.

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Floodplains are unique ecosystems because of their linear form, the sometimes extreme dynamism of their geomorphology and because they process large fluxes of energy and materials from upstream areas. This article focuses on the importance of hydrological inputs to floodplains through 1) their influence on the arrangement of landforms and vegetation communities and 2) the connections between flooding regimes and the regeneration and turnover time of floodplain vegetation. Many researchers have demonstrated close links between the arrangement of vegeta tion communities and sedimentary landform types, elevation, soil characteristics, tolerance to flooding and availability of soil moisture. It is suggested that plants on floodplains are found along a combined gradient of available moisture and oxygen which can be viewed simultaneously as a flooding frequency gradient and a complex soil moisture gradient. Discussion of experi mental work on floodplains demonstrates the importance of these gradients to a range of flood plain species in different environments. The relationships between these environmental gradients and the apparent high level of overlap between planform patterns of landforms and vegetation communities on floodplains are related to lag times in different parts of vegetation communities. Flood regimes greatly influence the availability of areas suitable for vegetation regeneration from year to year and the age structure of floodplain communities over decadal time frames. Biotic factors also influence biogeomorphological relationships on floodplains and range from sediment- trapping by vegetation to the impacts of beaver and grazing animals on floodplain hydrology and vegetation. Restoration of floodplains is high on the agenda in many countries and it is argued that, for sustainable results, restoration of hydrological pathways is essential. Planned flood releases below dams in several African countries have had varied success rates but the develop ment of models for managing flows to achieve different restoration targets is the start of an integrated approach to restoring complex floodplain ecosystems.
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Scown, M. W., M. C. Thoms i N. R. De Jager. "An index of floodplain surface complexity". Hydrology and Earth System Sciences 20, nr 1 (26.01.2016): 431–41. http://dx.doi.org/10.5194/hess-20-431-2016.

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Abstract. Floodplain surface topography is an important component of floodplain ecosystems. It is the primary physical template upon which ecosystem processes are acted out, and complexity in this template can contribute to the high biodiversity and productivity of floodplain ecosystems. There has been a limited appreciation of floodplain surface complexity because of the traditional focus on temporal variability in floodplains as well as limitations to quantifying spatial complexity. An index of floodplain surface complexity (FSC) is developed in this paper and applied to eight floodplains from different geographic settings. The index is based on two key indicators of complexity, variability in surface geometry (VSG) and the spatial organisation of surface conditions (SPO), and was determined at three sampling scales. FSC, VSG, and SPO varied between the eight floodplains and these differences depended upon sampling scale. Relationships between these measures of spatial complexity and seven geomorphological and hydrological drivers were investigated. There was a significant decline in all complexity measures with increasing floodplain width, which was explained by either a power, logarithmic, or exponential function. There was an initial rapid decline in surface complexity as floodplain width increased from 1.5 to 5 km, followed by little change in floodplains wider than 10 km. VSG also increased significantly with increasing sediment yield. No significant relationships were determined between any of the four hydrological variables and floodplain surface complexity.
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Waldner, PhD, Leora S. "Floodplain creep and beyond: An assessment of next-generation floodplain problems". Journal of Emergency Management 5, nr 4 (1.07.2007): 39. http://dx.doi.org/10.5055/jem.2007.0013.

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Since the 1970s, local jurisdictions have made great strides in protecting their floodplains through land use ordinances. Jurisdictions that joined the National Flood Insurance Program have prohibited structures in the regulatory floodway, and several jurisdictions have gone a step further, prohibiting structures in the 100-year floodplain. What next? If local governments are successfully keeping structures away from floodplains, have they adequately addressed floodplain issues—or do other problems remain unaddressed? This research examines Atlanta-region counties, and uncovers four potential next-generation problems, including the following: (1) floodplain creep (expansion of the floodplain) resulting from increased impervious surfaces and development; (2) the unrestricted development of homes in the 100-year floodplain of small dams; (3) cumulative riparian effects of cut and fill practices; and (4) lack of information for prospective homeowners of floodplain-burdened property.
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Heyden, Janika, i Stephanie Natho. "Assessing Floodplain Management in Germany—A Case Study on Nationwide Research and Actions". Sustainability 14, nr 17 (25.08.2022): 10610. http://dx.doi.org/10.3390/su141710610.

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After a long history of floodplain degradation and substantial losses of inundation areas over the last decades, a rethinking of floodplain management has taken place in Germany. Floodplains are now acknowledged as important areas for both biodiversity and society. This transformation has been significantly supported by nationwide research activities. A systematic assessment of the current floodplain management is still lacking. We therefore developed a scheme to assess floodplain management through the steps of identification, analysis, implementation, and evaluation. Reviewing the data and literature on nationwide floodplain-related research and activities, we defined key elements of floodplain management for Germany. We concluded that research activities already follow a strategic nationwide approach of identifying and analyzing floodplains. Progress in implementation is slow, however, and potentials are far from being reached. Nevertheless, new and unique initiatives enable Germany to stay on the long-term path of giving rivers more space and improving floodplain conditions.
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Grenfell, S., i M. Grenfell. "Characterising the late Quaternary facies stratigraphy of floodplains in South Africa". South African Journal of Geology 124, nr 4 (1.12.2021): 963–76. http://dx.doi.org/10.25131/sajg.124.0056.

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Abstract South African river floodplains and their alluvial deposits reflect a diversity of geological and geographical drivers. We use a genetic geomorphic classification system originally developed for dryland wetlands to characterise geomorphic processes and potential successions of sedimentary fill for South African floodplains. Using case studies from the literature, we consider differences between alluvial rivers and mixed bedrock-alluvial rivers in the context of macro-scale geomorphic setting, and evaluate the impact of the setting on floodplain persistence and potential as a palaeo-environmental archive. Sedimentary facies associations represented in South African floodplains, including lateral and oblique accretion, channel, channel infill, levee vertical accretion, floodplain vertical accretion and debris flow deposits, are also evaluated. Floodplains of South Africa’s interior are typically mixed bedrock-alluvial as channel beds are set upon or close to bedrock and sediment thickness is limited. By contrast some floodplains in tectonic basin settings have sediment deposits exceeding 30 m in thickness. The resulting rivers are alluvial, and thus able to adjust their width, depth and slope to accommodate changes in discharge and sediment supply. Similarly, coastal floodplain rivers are alluvial due to downcutting during the last glacial maximum and subsequent sedimentary infilling as sea levels rose. When considering the potential of floodplains as palaeoarchives of environmental change, two considerations emerge. First, floodplain stratigraphy is not a response to a single variable due to complex process-form feedbacks. Rather, floodplain stratigraphy is an outcome of both autogenic and allogenic processes. Second, most South African floodplains are zones of sediment recycling, and as such, preservation potential is typically low. Thus, although floodplain settings of the interior may be a few million years old, the sediment within them may be only thousands to tens of thousands of years old. Our review indicates that research has historically focused on meandering river and mixed bedrock-alluvial anabranching river floodplains, while understanding of other floodplain sub-types remains limited.
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Martin, Simon, Stefan Klingler, Peter Dietrich, Carsten Leven i Olaf A. Cirpka. "Structural controls on the hydrogeological functioning of a floodplain". Hydrogeology Journal 28, nr 8 (22.08.2020): 2675–96. http://dx.doi.org/10.1007/s10040-020-02225-8.

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AbstractFloodplains are often conceptualized as homogeneous sediment bodies which connect streams with their respective catchment and buffer agricultural inputs. This has led to a general bias within the hydrological community towards research on sites where the floodplain is a clear conduit for groundwater flow. In humid temperate regions of central Europe, floodplains have experienced rapid environmental changes since the last glaciation, yielding significant bedrock weathering and predominantly fine-grained, highly stratified hillslope and floodplain sediments. Such heterogeneous sedimentary architecture leads to conceptual ambiguities in the interpretation of the hydrogeological functioning of floodplains, thus raising the question: Do floodplains act as barriers or conduits to groundwater flow? This study analyzes the Ammer floodplain close to Tübingen in south-western Germany as a representative mid-section floodplain in a temperate climate where the regional bedrock-geology is dominated by mudstones. Geological, geophysical, and geochemical characterization and monitoring techniques were combined to shed light on the internal geological structure as a key control modulating the floodplain hydrology. Two partially separate groundwater systems were identified: a gravel body at the bottom of the Quaternary sediments and a Holocene confined tufaceous aquifer, separated by low-permeability clays. Despite flow being predominantly along-valley, sulfate concentrations in the floodplain aquifers showed evidence of a strong connection to the gypsum-bearing hillslope, particularly where tributary valley sediments are present (e.g., alluvial fans). Results from a floodplain water balance suggest the hillslope- and floodplain-aquifer material act as a barrier to hillslope groundwater recharge, where a large fraction may be bypassing the local floodplain groundwater system.
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Schoor, Margriet M. "The Relation between Vegetation and Hydrology/Geomorphology in the Gemenc Floodplain Forest, Hungary". Water Science and Technology 29, nr 3 (1.02.1994): 289–91. http://dx.doi.org/10.2166/wst.1994.0122.

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In the Gemenc floodplain along the river Danube in Southern Hungary, six vegetation zones have been identified. Together with soil and geomorphological data, these vegetation zones are interpreted to form a hypothesis of succession for the Gemenc floodplain. As the Gemenc floodplain is comparable with the Dutch floodplains, from a hydrological, geomorphological and floristic point of view, the results can be used in plans for the rehabilitation of the floodplains of the river Rhine in the Netherlands.
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Scown, M. W., M. C. Thoms i N. R. De Jager. "An index of floodplain surface complexity". Hydrology and Earth System Sciences Discussions 12, nr 4 (30.04.2015): 4507–40. http://dx.doi.org/10.5194/hessd-12-4507-2015.

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Abstract. Floodplain surface topography is an important component of floodplain ecosystems. It is the primary physical template upon which ecosystem processes are acted out. There has been a limited appreciation of floodplain surface complexity because of the traditional focus on temporal variability in floodplains as well as limitations to quantifying spatial complexity. An index of floodplain surface complexity (FSC) is developed in this paper and applied to eight floodplains from different geographic settings. The index is based on the two key indicators of complexity; variability in surface geometry (VSG) and the spatial organization of surface conditions (SOC) and was determined at three sampling scales. Relationships between these measures of spatial complexity and environmental drivers, namely; flow variability (mean daily discharge [Q], the coefficient of variation of daily discharge [QCV], the coefficient of variation of mean annual discharge [QCVAnn], the coefficient of variation of maximum annual discharge [QCVMax]), sediment yield (SY), valley slope (Vs), and floodplain width (Fpw) were examined. FSC, VSG, and SOC varied between the eight floodplains and this was dependent upon sampling scale. All complexity values declined with increasing Fpw in either a power, logarithmic, or exponential function. There was little change in surface complexity with floodplain widths greater than 10 km. VSG was significantly related to SY and no significant relationships were determined between any of the hydrological variables and floodplain surface complexity.
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Rozprawy doktorskie na temat "Floodplain"

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Xavier, Patricia Anne. "Floodplain woodland hydrodynamics". Thesis, Cardiff University, 2009. http://orca.cf.ac.uk/54961/.

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Floodplain woodlands are valuable environments, providing a diverse habitat for many riparian and land-based species. It is now recognised that the continual loss of floodplain woodland has impoverished the national biodiversity of riparian environments, and measures have been brought in both nationally and through the European Commission to halt the decline. This has however, highlighted a deficiency that has existed for many years in the field of river hydraulics. The representation of complex riparian vegetation environments within river models remains an area not adequately addressed. This research presents experimental investigations into floodplain woodland vegetation, with a view to improving the representation of these vegetations within numerical models. Floodplain woodland hydrodynamics were explored with scaled-down (1:8) stag gered arrays of single stem and multi-stem model trees at planting densities of 8.8, 19.8 and 80.6 plants per m 2. The planting densities investigated correspond to the recommended planting densities cited by the Forestry Commission UK. Roughness factors, including Manning's n, the Darcy-Weisbach friction factor / and the bulk drag coefficient Ca were computed for the different model tree and planting density combinations. Velocity measurements within the arrays were investigated, and a study to determine the optimum sampling strategy was carried out to obtain representative velocity and turbulent kinetic energy measurements within the model tree arrays. The optimum sampling locations for streamwise velocity appeared to be clustered around 0.3 s and 0.7 s, where s is the lateral or longitudinal spacing between the model trees, while for turbulent kinetic energy the optimum location was 0.5 s. Full scale drag force versus velocity tests of floodplain woodland trees were carried out and a drag area parameter CdA.Uo derived. The trees experienced little to no bending at low velocities, with force varying linearly with the square of velocity, while considerable deflection was observed at higher velocities, with force varying linearly with the velocity. Physical parameters including height, diameter, mass and volume of the wood are compared against the drag area parameter, with mass and volume showing a stronger correlation than height or diameter. The increase in the drag area parameter due to the presence of foliage was also investigated. The numerical incorporation of floodplain woodland vegetation is presented with respect to two-dimensional depth-averaged numerical modelling. A reach of the River Laver in North Yorkshire, England was modelled to assess the hydraulic impact of the conversion of arable land to floodplain woodland.
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Holowaty, Nadja Deyglun. "Floodplain management in Quebec : a case study of the Mille Iles River floodplains". Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63232.

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Wolfe, Brian Paul. "Floodplains and the Proximate Principle: A Case for Floodplain Linear Parks in Roanoke, Virginia". Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/33151.

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The intention of this paper is to argue a position for the use of floodplain linear parks as a means of urban flood mitigation. Current approaches often focus on protecting existing and future structures via the use of costly-engineered solutions such as dams and floodwalls. My argument is that the same money can be used to restore the floodplain by removing such structures and establishing a park system that will serve as a valuable public amenity, while allowing flooding to occur with minimal damage produced. In the long run, such a park will provide a greater return on the investment than other potential solutions. A discussion of the â Proximate Principleâ will describe how this works. From an environmental perspective, the importance of such a park will be discussed by placing it in the context of the green infrastructure concept, which is essentially an umbrella term for ongoing efforts to better integrate human and natural systems. Three case studies are presented that demonstrate examples of such park systems and the effects they had on local economies and communities. These studies begin demonstrating the social connotations for such a project as well. Throughout this paper, ties are made to the city of Roanoke, Virginia (where the project portion of this thesis takes place) to demonstrate the relevance of floodplain linear parks to the city. All arguments made are supported by a conceptual floodplain park plan for the city of Roanoke.
Master of Landscape Architecture
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Jones, Charles Nathaniel. "Floodplain Hydrology and Biogeochemistry". Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/75169.

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River-floodplain connectivity is defined as the water mediated transfer of materials and energy between a river or stream and its adjacent floodplain. It is generally accepted that restoring and/or enhancing river-floodplain connectivity can reduce the downstream flux of reactive solutes such as nitrogen (N) and phosphorus (P) and thus improve downstream water quality. However, there is little scientific literature to guide ecological engineering efforts which optimize river-floodplain connectivity for solute retention. Therefore, the aim of my dissertation research was to examine feedbacks between inundation hydrology and floodplain biogeochemistry, with an emphasis on analyzing variation experienced along the river continuum and the cumulative effects of river-floodplain connectivity at the basin scale. This was completed through four independent investigations. Field sites ranged from the Atchafalaya River Basin, the largest river-floodplain system in the continental US, to the floodplain of a recently restored headwater stream in Appalachia. We also developed a method to examine river-floodplain connectivity across large- river networks and applied that methodology to US stream network. Largely, our results highlight the role floodwater residence time distributions play in floodplain biogeochemistry. In headwater streams, residence times restrict redox dependent processes (e.g. denitrification) and downstream flushing of reactive solutes is the dominant process. However, in large-river floodplains, redox dependent processes can become solute limited because of prolonged residence times and hydrologic isolation. In these floodplains, the dominant process is often autochthonous solute accumulation. Further, results from our modeling study suggest large-river floodplains have a greater impact on downstream water quality than floodplains associated with smaller streams, even when considering cumulative effects across the entire river network.
Ph. D.
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Sorg, Jonathan Earl. "FLOODPLAIN MANAGEMENT: AN INTERNSHIP WITH THE OHIO DEPARTMENT OF NATURAL RESOURCES' FLOODPLAIN MANAGEMENT PROGRAM". Connect to this document online, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=miami1133361272.

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Thesis (M. En.)--Miami University, Institute of Environmental Sciences, 2005.
Title from first page of PDF document. Document formatted into pages; contains [1], v, 169, [1] p. : ill. Includes bibliographical references (p. 36).
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Castenson, Karen Lynn. "Hydromorphology of Piedmont Floodplain Soils". College Park, Md. : University of Maryland, 2004. http://hdl.handle.net/1903/1354.

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Thesis (M.S.) -- University of Maryland, College Park, 2004.
Thesis research directed by: Dept. of Plant Science and Landscape Architecture. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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Trigg, Mark Adam. "Amazon River and floodplain hydrodynamics". Thesis, University of Bristol, 2010. http://hdl.handle.net/1983/a11db296-b2d8-4c75-95e4-7c94816345c0.

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The annual monomodal flood pulse of the Amazon River is a key driver for this globally important hydrological system. Understanding the behaviour and characteristics of this flood wave and its influence on the dynamics of river and floodplain interaction is important to many studies attempting to quantify processes dependent upon it, including estimates of carbon fluxes from the wetlands and sediment movement to the ocean. The main aim of the research presented in this thesis was to investigate the hydrodynamic behaviour of the Amazon River and its floodplain, in order to better understand its components and processes. The key scientific question underpinning this aim is: How do the floodplain storage and fluxes affect the passage of the Amazon flood wave and in turn how does the passage of the flood wave control the dynamics on the floodplain? Research was carried out using a synthesis of hydraulic characterisation, numerical modelling, spatial analysis of remote sensing data and field surveys. In combination with information from published floodplain studies, these results were then used to inform the development of a conceptual hydrodynamics framework for the Amazon floodplain. Hydraulic characterisation of the Amazon flood wave was undertaken showing that it is subcritical and diffusive in nature with dominating backwater effects. Experiments with the main channel using hydraulic models showed that main channel water levels were relatively insensitive (0.5 m error on a 12 m flood wave amplitude) to the geometric representation of the channel and that simplified bathymetry is adequate for calibrated predictions, provided the mean cross sectional area can be reasonably well approximated. Hydraulic model results compare well with observed data despite explicit exclusion of the floodplain, indicating that the storage volume of the floodplain has a minimal affect on the passage of the Amazon flood wave for this reach. The spatial analysis of Landsat TM images shows a total of 1,762 floodplain channels in the study area with a mean width of 47 m. Shuttle radar topography mission data has difficulty in resolving many of these floodplain channels due to 96% of the channels having a width less than the SRTM spatial resolution of 90 m. Comparing floodplain channel widths with their frequency reveals a power law relationship, showing patterns of structure that are self-similar over many orders of magnitude. Analysis of the floodplain channel network connectivity showed that the complex floodplain can be divided into floodplain hydrologic units (FHU) and that each unit type has different geomorphic characteristics resulting from a different mixture of water inputs, with each unit isolated from other units for much of the flood cycle by sediment barriers. A field survey of the floodplain channels was conducted in order to measure and characterise their morphology. The findings of this survey together with numerical connectivity experiments, demonstrate that floodplain channels could be playing a much more significant role in the floodplain hydrodynamics then previously acknowledged. Floodplain channels were grouped into three types by depth: (i) for channels carrying only river flood water, depth was strongly correlated with the flood wave’s mean annual range of 11.4 m; (ii) for channels which carried river flood water and local runoff, the mean depth was substantially deeper at 15.9 m; and, (iii) main river island channels were deeper again, with a mean depth of 17.7 m. Finally, a coherent, evidence based, conceptual floodplain hydrodynamics framework was developed to inform a broad range of future Amazon wetland research. The framework represents an extension to the macro level understanding available in the scientific literature and provides an important link between the macro and detailed level study scale.
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Leigh, Catherine. "Floodplain river function in Australia's wet/dry tropics, with specific reference to aquatic macroinvertebrates and the Gulf of Carpentaria". Thesis, Griffith University, 2009. https://eprints.qut.edu.au/119606/1/Leigh_2009_02Thesis.pdf.

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This thesis provides significant insight into our understanding of river function in highly seasonal systems. In north Australia’s vast wet/dry tropics, large rivers and associated wetlands are regarded among the continent’s most biologically diverse and ecologically healthy. Until recently however, research on the hydrology, biodiversity and function of Australian rivers has focussed on the south. My thesis investigates floodplain river function in Australia’s wet/dry tropics, more specifically in the Gulf of Carpentaria drainage division, and is the first to present a dynamic conceptual model of river function for these systems. Three major themes reside within riverine ecology: flow, pattern and process. These themes feature within existing conceptual models of large river function, for example, the River Continuum Concept, the Flood Pulse Concept and the Riverine Productivity Model. These themes and models were used as a template to explore river function in the study region: flow, as broad-scale hydrology and more localised hydrological connectivity; patterns, as spatiotemporal variation in aquatic macroinvertebrate biodiversity; and processes, as organic carbon flow through aquatic macroinvertebrate food webs. The flow regime is major driver of river function, and as such, a multivariate analysis of daily flow data from large, Gulf of Carpentaria rivers was conducted. Two major classes of river were found, each with a distinct flow regime type: ‘tropical’ rivers were characterised by flow regularity and permanent hydrological connection, ‘dryland’ rivers by high levels of flow variability and ephemerality, similar to rivers in Australia’s central and semi-arid zones. However, both river types experienced seasonal change, associated with higher flow magnitudes in the wet and lower flow magnitudes in the dry, with ‘dryland’ rivers typified by greater numbers of zero flow days. These features—flow regularity and permanence for ‘tropical’ rivers, flow variability and absence for ‘dryland’ rivers, and wet/dry seasonality for both river types—were proposed as the broad-scale hydrological drivers of river function in the Gulf region and are expected to be found as important drivers throughout the wet/dry tropics.
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Brill, Katie Ellen. "Impacts of inundation and season on greenhouse gas fluxes from a low-order floodplain". Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/19213.

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The global climate is changing and much of this is attributed to the greenhouse effect, which has been exacerbated by increased anthropogenic releases of greenhouse gases (GHGs). However, important GHGs, carbon dioxide (CO2), nitrous oxide (N2O), and methane (CH4), are produced naturally in the soil during the metabolism of many soil microbial and plant communities. The generation rate of GHGs depends on many factors, including soil community composition, nutrient availability, temperature, and soil moisture. Predicted climate variability is expected to alter temperature and rainfall patterns, which can impact the factors regulating natural generation of GHGs. With changing fluxes of GHGs, the natural feedback loops between GHG generation and climate may change. Increased emissions from natural sources would exacerbate climate change, whereas decreased emissions may mitigate its impacts. Floodplains may be particularly susceptible to climate change, as their biogeochemical processing is driven by hydrology. For this study, ten mesocosms were installed on the floodplain of Stroubles Creek in southwest Virginia. A flood event was simulated in half of these mesocosms in both early spring and mid-summer, which represent extremes in soil moisture and primary productivity on the floodplain. Headspace gases were monitored for CO, N2O, and CH4. Efflux of CO2 and N2O was higher in summer than spring, and also increased following wetting events. Methane production was greater in the spring, with no detectable change with wetting. Increases in summer rainfall events could increase the release of important GHGs to the atmosphere, potentially at levels significant to climate change.
Master of Science
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Schmidt, Casey A. "Floodplain impacts from channelization and urbanization a characterization of the Tumblin Creek Delta Floodplain, Gainesville, Florida /". [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0010261.

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Książki na temat "Floodplain"

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Holly, Cooper, red. Floodplain. Orlando: Harcourt, 2003.

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Interagency Floodplain Management Review Committee (U.S.). Scientific Assessment and Strategy Team. Science for floodplain management into the 21st century: Report of the Interagency Floodplain Management Review Committee to the Administration Floodplain Management Task Force. Washington, D.C: The Committee, 1994.

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Team, Interagency Floodplain Management Review Committee (U S. ). Scientific Assessment and Strategy. Science for floodplain management into the 21st century: Report of the Interagency Floodplain Management Review Committee to the Administration Floodplain Management Task Force. Washington, D.C: The Committee, 1994.

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Prasad, Kar Shiba, Hussain Md Belayet, Ahmed Rashiduzzaman, Nishat Ainun i IUCN--The World Conservation Union. Bangladesh Country Office., red. Awareness raising in sustainable floodplain resource management. Dhaka: IUCN-The World Conservation Union, Bangladesh Country Office, 2005.

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Canada. Environment Canada. Inland Waters Directorate. An economic assessment of the flood-plain zoning program in the Outaouais Region. S.l: s.n, 1988.

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), Scientific Assessment and Strategy Team (U S. Proceedings of the Scientific Assessment and Strategy Team workshop on hydrology, ecology, and hydraulics, Sioux Falls, South Dakota, February 15-16, 1994. Washington, D.C: Scientific Assessment and Strategy Team, Interagency Floodplain Management Review Committee, 1996.

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G, Anderson M., Walling D. E i Bates Paul D, red. Floodplain processes. Chichester: Wiley, 1996.

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Baptist, M. J. Modelling floodplain biogeomorphology: Proefschrift ter verkrijging van de graad van doctor aan de Technische Universiteit Delft ... Delft, Netherlands: DUP Science, 2005.

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United States. Administration Floodplain Management Task Force, red. Sharing the challenge: Floodplain management into the 21st century : executive summary : report of the Interagency Floodplain Management Review Committee to the Administration Floodplain Management Task Force. Washington, D.C: [Executive Office of the President], 1994.

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), Interagency Floodplain Management Review Committee (U S. Sharing the challenge: Floodplain management into the 21st century, executive summary : report of the Interagency Floodplain Management Review Committee to the Administration Floodplain Management Task Force. Washington, D.C: The Committee, 1994.

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Więcej źródeł

Części książek na temat "Floodplain"

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Tockner, Klement. "Floodplain". W Encyclopedia of Natural Hazards, 337–38. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-1-4020-4399-4_139.

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Carling, Paul A., i Henrik Hargitai. "Floodplain". W Encyclopedia of Planetary Landforms, 1–5. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4614-9213-9_152-1.

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Carling, Paul A., i Henrik Hargitai. "Floodplain". W Encyclopedia of Planetary Landforms, 776–79. New York, NY: Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4614-3134-3_152.

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Taki, Kentaro. "Flood Management Policy in Shiga Prefecture, Japan: Implementation Approach of a Risk-Based Flood Management System at Catchment Scale". W Ecological Research Monographs, 43–59. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-6791-6_4.

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AbstractShiga Prefectural Government uses “site safety level” to assess the flood risk of major floodplains in the prefecture in order to implement an integrated floodplain management system in society. Site safety level is determined based on a risk matrix expressing the relationship between the frequency of inundation and the degree of damage at sites surrounding a river channel complex. A department has been set up for floodplain management separate from river management. The Department of Floodplain Management promotes disaster mitigation measures, such as land use and construction regulations, and conservation of traditional flood control facilities, including flood prevention forests, open levees, and ring levees. Such traditional facilities are highly functional as green infrastructure because they are focused not only on disasters but also on a daily basis in order to wisely utilize local ecosystem service.
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Wetmore, French. "Floodplain Management". W Wetlands and Habitats, 3–9. Second edition. | Boca Raton: CRC Press, [2020] | Revised: CRC Press, 2020. http://dx.doi.org/10.1201/9780429445507-2.

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Dezső, József, Dénes Lóczy, Ali Mohamed Salem i Gábor Nagy. "Floodplain Connectivity". W Springer Geography, 215–30. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-92816-6_14.

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Kevey, Balázs. "Floodplain Forests". W Springer Geography, 299–336. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-92816-6_18.

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May, Peter J., i Walter Williams. "Floodplain Regulation". W Disaster Policy Implementation, 65–80. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4613-2153-8_5.

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Wellstein, C., U. Uehlinger i R. Zah. "Terrestrial Floodplain Vegetation". W Ecology of a Glacial Flood Plain, 109–21. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0181-5_7.

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Melack, John M., Evlyn M. L. M. Novo, Bruce R. Forsberg, Maria T. F. Piedade i Laurence Maurice. "Floodplain ecosystem processes". W Amazonia and Global Change, 525–41. Washington, D. C.: American Geophysical Union, 2009. http://dx.doi.org/10.1029/2008gm000721.

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Streszczenia konferencji na temat "Floodplain"

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SÂRBU, Daniela, Mihaela DULĂU, Stelian STĂNESCU, Ileana TĂNASE i Marinela MOLDOVEANU. "Identification and Evaluation of Potential Floodplain Areas Using the Floodplain Evaluation Matrix - Romanian Case Study". W Air and Water – Components of the Environment 2021 Conference Proceedings. Casa Cărţii de Ştiinţă, 2021. http://dx.doi.org/10.24193/awc2021_10.

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A large number of floodplains got lost due to settlements, infrastructure and agriculture. The reconnection of floodplains plays a significant role considering water retention potential and other aspects such as biodiversity conservation, improvement of water status and river morphology. The delineation and evaluation of potential floodplains and their reconnection capacity require the consideration of the multiple parameters to characterize the effectiveness of floodplains in terms of hydrology/hydraulics, ecology and sociology. In order to delineate floodable area within the lower part of the Desnatui river an unsteady 1D hydrodynamic model has been built up and calibrated, using HEC-RAS software. The Floodplain Evaluation Matrix tool has been applied taking into account the following categories of parameters: hydrology (peak reduction ΔQ, flood wave translation Δt), hydraulics (water level Δh), ecology (connectivity of floodplain water bodies, existence of protected species) and socio-economics (potentially affected buildings, land use). The results showed that identified floodplain areas have high demand for restoration.
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Han, Fengxiang X., Yi Su i David L. Monts. "Current Mercury Distribution and Bioavailability in Floodplain Soils of Lower East Fork Popular Creek, Oak Ridge, Tennessee, USA". W ASME 2010 13th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2010. http://dx.doi.org/10.1115/icem2010-40260.

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The objectives of this study were to investigate the current status of mercury distribution, speciation and bioavailability in the floodplain soils of Lower East Fork Poplar Creek (LEFPC) after decades of US Department of Energy’s remediation. Historically as part of its national security mission, the U.S. Department of Energy’s Y-12 National Security Facility in Oak Ridge, TN, USA acquired a significant fraction of the world’s supply of elemental mercury. During the 1950s and 1960s, a large amount of elemental mercury escaped confinement and is still present in the watershed surrounding the Y-12 facility. A series of remediation efforts have been deployed in the watersheds around the Oak Ridge site during the following years. The sampling fields were located in a floodplain of LEFPC of Oak Ridge, TN, USA. A series of surface soils (10–20 cm) were sampled from both wooded areas and wetland/grass land. Two 8×8 m fields were selected in the woodland. Five profiles each consisting of three layers were randomly taken from each field. The three layers were the surface layer at 0–10cm, subsurface layer at 50–60 cm, and bottom layer at 100–110 cm. Soil in both wood and wetland areas was well developed with a clear B horizon. The present study clearly shows that the total mercury in floodplain soils of LEFPC significantly decreased after the series of remediation. This study confirmed the long-term effectiveness of these remediation actions, especially after excavation of highly contaminated floodplain soils. However, the average total mercury level of all soil samples collected are in the range of 50–80 mg/kg, still significantly above toxic level (> 5mg/kg). Furthermore, contrary to conventional believing, the major mercury form in current soils of this particular area of floodplain of LEFPC is mainly in non-cinnabar mercury bound in clay minerals (after decades of remediation). The floodplains can act both as a medium-term sink and as long-term sources. Native North American earthworms (Diplocardia spp.) and adjacent soils were taken from each spot in each field. Our results show strong linear relationships between mercury concentrations in earthworms (both mature and immature groups) and non-cinnabar mercury form, while cinnabar mercury is less bioavailable to native earthworms. Earthworms may be used as a potential mercury ecological bio-indicator (bio-marker) for demonstrating mercury bioavailability and ecotoxicity in the ecosystem. The long-term stability, mobility and bioavailability of mercury contaminants in these floodplains still needs to be monitored continuously and closely.
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Kreymborg, Leo R., David T. Williams i Iwan H. Thomas. "Rapid Floodplain Delineation". W World Environmental and Water Resources Congress 2007. Reston, VA: American Society of Civil Engineers, 2007. http://dx.doi.org/10.1061/40927(243)169.

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Guillen, Sergio, M. Radaideh i D. Ruark. "California Floodplain Management Task Force". W World Water and Environmental Resources Congress 2004. Reston, VA: American Society of Civil Engineers, 2004. http://dx.doi.org/10.1061/40737(2004)388.

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Moses, Todd, i David Gorman. "Brookside Channel and Floodplain Improvements". W Wetlands Engineering and River Restoration Conference 1998. Reston, VA: American Society of Civil Engineers, 1998. http://dx.doi.org/10.1061/40382(1998)124.

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Coulton, Kevin G., Peter Goodwin i Christine Perala-Gardiner. "Willamette River Valley Floodplain Restoration". W Wetlands Engineering and River Restoration Conference 1998. Reston, VA: American Society of Civil Engineers, 1998. http://dx.doi.org/10.1061/40382(1998)186.

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Riedel, George. "No Adverse Impact Floodplain Management". W World Environmental and Water Resources Congress 2007. Reston, VA: American Society of Civil Engineers, 2007. http://dx.doi.org/10.1061/40927(243)28.

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Hernandez, Tatiana, i Bin Zhang. "Floodplain Analysis Using Computational Tools". W World Environmental and Water Resources Congress 2007. Reston, VA: American Society of Civil Engineers, 2007. http://dx.doi.org/10.1061/40927(243)91.

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Li, Fei, Zhongyu Wang, Huayong Zhang, Weigang Xu, Yu Jing i Shoushan Yang. "A Study on the Hydraulic Resistance of Rigid Unsubmerged Vegetation in Floodplain". W ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-40777.

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The variations of water level and flow velocity distribution can be caused by the aquatic vegetation which plays an important role in flood plain. In this study, a series of laboratory experiments are carried out to simulate the floodplain flow under three discharge conditions and four reed densities. The flow state, water level variation and flow velocity distribution are investigated in the modeling floodplain. Also, the relationship between flow resistance and reed densities is discussed. The results provide a better insight into the flow resistance of rigid unsubmerged vegetation in floodplain.
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"A simple storage based floodplain inundation modelling approach in AWRA-R for estimating floodplain fluxes". W 20th International Congress on Modelling and Simulation (MODSIM2013). Modelling and Simulation Society of Australia and New Zealand (MSSANZ), Inc., 2013. http://dx.doi.org/10.36334/modsim.2013.l1.dutta.

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Raporty organizacyjne na temat "Floodplain"

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undefined, undefined i undefined. Estimating the Water Requirements for Plants of Floodplain Wetlands. The Nature Conservancy, maj 2009. http://dx.doi.org/10.3411/col.05280048.

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Yeager, Kevin M. Floodplain sedimentology and sediment accumulation assessment – Savannah River Site. Office of Scientific and Technical Information (OSTI), styczeń 2016. http://dx.doi.org/10.2172/1234549.

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Payne, Barry S., i Andrew C. Miller. Mussels Associated with Floodplain Channels Connected to the Apalachicola River. Fort Belvoir, VA: Defense Technical Information Center, czerwiec 2002. http://dx.doi.org/10.21236/ada403666.

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Afonina, Ekaterina Yu, i Mydygma Ts Itigilova. Zooplankton in Small Floodplain Lakes of the Ilya River Basin. LJournal, 2017. http://dx.doi.org/10.18411/2500-1701-2017-12-1-121-128.

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Schattman, Rachel. Farming the floodplain: New England river governance in a changing climate. USDA Northeast Climate Hub, wrzesień 2017. http://dx.doi.org/10.32747/2017.6949554.ch.

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River governance is notoriously complex. Climate change will alter how people interact with rivers. Will current river governance structures serve us in the future? Or is it time to reconsider our current rules and regulations?
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Moran, Mark, Todd Griffith i Al Stroh. The Iowa City 100-Year Floodplain : Land Uses and Management Options. University of Iowa, maj 1994. http://dx.doi.org/10.17077/71vc-0fln.

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LaGory, Kirk E., Leroy J. Walston i Cory C. Weber. 2012 Reassessment of Floodplain Wetland Connections in the Middle Green River, Utah. Office of Scientific and Technical Information (OSTI), grudzień 2016. http://dx.doi.org/10.2172/1342163.

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LaGory, K. E., L. J. Walston i C. C. Weber. 2014 Reassessment of Floodplain Wetland Connections in the Middle Green River, Utah. Office of Scientific and Technical Information (OSTI), grudzień 2016. http://dx.doi.org/10.2172/1342165.

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Loftin, Samuel. Los Alamos National Laboratory Floodplain Assessment for the West Road Maintenance Project. Office of Scientific and Technical Information (OSTI), marzec 2021. http://dx.doi.org/10.2172/1772406.

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Warner, Benjamin, i Rachel Schattman. Farming the floodplain: overcoming tradeoffs to achieve good river governance in New England. USDA Northeast Climate Hub, maj 2017. http://dx.doi.org/10.32747/2017.6949553.ch.

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The goal of this case is for students to learn through the development of a sustainable river governance plan for Massachusetts focused on balancing needs and perspectives on local agriculture, flood resilience, and healthy ecosystems in the context of climate change. This will be challenging. Ideally, a river governance plan developed by the students would support local agriculture, increase flood resilience, and promote environmental stewardship. A role-playing exercise is included in this case that involves representatives of several stakeholders groups (personas assumed by a subset of students); these include a farmer, a fisher/recreationalist, a state river manager, an environmentalist, and a resident. The students will learn about the goals of a stakeholder to discuss with the others, negotiate with them, find ways to resolve conflicts and finally to create a governance plan.
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