Gotowe bibliografie tematyczne / Coastal wetlands

Gotowa bibliografia na temat „Coastal wetlands”

Autor: Grafiati
Data publikacji: 4 czerwca 2021
Data aktualizacji: 20 lutego 2023

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Artykuły w czasopismach na temat "Coastal wetlands"

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Peng, Yan Dong, i Jing Yue Wang. "Study on the Loss and Degradation and Sustainable Development Countermeasures of the Coastal Wetlands in Qinhuangdao". Applied Mechanics and Materials 361-363 (sierpień 2013): 1016–19. http://dx.doi.org/10.4028/www.scientific.net/amm.361-363.1016.

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Qinhuangdao coastal wetland is the distribution of China's most representative of the sandy coastal wetlands, and its main wetland types are sandy coast wetland, rocky coast wetland, estuarine wetland, lake wetland, shallow sea wetland and artificial wetland. Under the influence of natural factors and human factors, coastal wetlands degradation constantly. Land reclamation, city and port development, pollution, coastal erosion and excessive use of coastal biologic resource are considered as the main factors to the degradation of the coastal wetlands. Based on the analysis the main factors contributing to the loss and degradation of the coastal wetlands and the characteristics of wetland degradation, sustainable development countermeasures are suggested in this paper.
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Gao, Yin, Lijuan Cui, Jianjun Liu, Wei Li i Yinru Lei. "China's coastal-wetland change analysis based on high-resolution remote sensing". Marine and Freshwater Research 71, nr 9 (2020): 1161. http://dx.doi.org/10.1071/mf19062.

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Coastal wetlands not only have abundant biodiversity and high productivity, but they also play an irreplaceable and important role in regional ecosystems. Because of the complex structure and dynamic characteristics of coastal wetlands, it is difficult to observe the spatial changes of coastal wetlands on a large scale and improve data reliability. In this study, a spatially constrained manual-interpretation method based on nationwide high-resolution images in 2017 was adopted to extract China’s coastal wetland distribution, and, then, the second national wetland-survey data from 2011 were used as a baseline for change analysis. The results showed that under the influence of natural conditions and human activities, China’s coastal wetlands have decreased in distribution in the past 6 years. The situation of coastal wetland reclamation is critical, and the hotspot regions are mainly distributed in Bohai Bay, middle of Jiangsu province and Hangzhou Bay. Farming reclamation is another factor that occupies coastal wetlands in China, and main occupied wetlands are mudflats, shallow sea, tidal flats, intertidal salt marshes and estuarine waters. Tide is the main factor affecting extraction of wetlands, the spatially constrained method had a positive effect on wetland detection, and has potential to improve automatic algorithms of complex coastal wetlands.
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Frieswyk, Christin B., i Joy B. Zedler. "Do seed banks confer resilience to coastal wetlands invaded by Typha ×glauca?" Canadian Journal of Botany 84, nr 12 (grudzień 2006): 1882–93. http://dx.doi.org/10.1139/b06-100.

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Historically, seed banks conferred resilience to Laurentian Great Lakes coastal wetlands by providing propagules of many species to replace invasive plants, such as Typha ×glauca Godr. After flooding, the seed bank could allow recovery of wetland composition and structure as the water levels fall. Using the seedling emergence method to estimate seed density, species and guild richness, and floristic quality, we evaluated the resilience of five wetlands along the western coast of Green Bay, Lake Michigan by comparing seed bank attributes in areas invaded by Typha to those of neighboring uninvaded areas and to attributes of the extant vegetation. Resilience decreased from north to south among the five wetlands, mirroring a gradient of decreasing water quality. The invasive Lythrum salicaria L. dominated the seed bank of all five wetlands despite low relative abundance in the extant vegetation. The resilience of Green Bay coastal wetlands is threatened by the overwhelming presence of L. salicaria in the seed bank. Because the seed bank holds a wetland’s potential to be renewed by the natural hydrological cycle, seed bank assessment should be a routine measure of wetland resilience.
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Chen, Haiyan, Dalong Li, Yaning Chen i Zhizhong Zhao. "Spatial–Temporal Evolution Monitoring and Ecological Risk Assessment of Coastal Wetlands on Hainan Island, China". Remote Sensing 15, nr 4 (14.02.2023): 1035. http://dx.doi.org/10.3390/rs15041035.

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Coastal wetlands are located at the intersection of land and sea and provide extremely important ecological services. The coastal wetlands of estuarine harbors are representative parts of the coastal wetlands. Changes that occur in estuarine harbor wetlands are microcosms of the changes occurring in the coastal wetlands more generally. The coastal wetlands of Hainan Island, China, are coastal wetlands typical of tropical islands and are extremely sensitive to climate change. In the context of global sea level rise, studying the characteristics of spatial and temporal distribution of coastal wetlands on Hainan Island, as well as changes in their vulnerability, could provide scientific and technological support to address the adverse effects of climate change. Using nine typical estuarine harbor wetlands as target areas, this study systematically studies the spatial–temporal evolution of coastal wetlands on Hainan Island from 1990 to 2020. The results suggest the following: (1) The total area of coastal wetlands has remained relatively stable, but the area of artificial wetlands, especially aquaculture ponds, has increased significantly. There is a clear spatial variability in the changes in mangrove wetlands, with a clear increase in the area of areas with a high degree of protection, such as Dongzhai Harbor (DZG). The area of the areas with a high intensity of human activity has been significantly reduced, such as Bamen Bay (BMG). (2) The overall ecological risk of coastal wetlands is low, with the average wetland risk index (WRI) of all harbors being below 0.15. The higher the degree of protection, the lower the ecological risk of the area, such as DZG. Human activities are the main factor causing increased ecological risk in wetlands. (3) Climate-change-induced sea level rise and the intensification of human activities are the main determinants of future trends in the spatial distribution of coastal wetlands and wetland ecosystem stability. The results of this study provide guidance on the conservation and restoration of coastal wetlands.
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Sun, Shaobo, Yonggen Zhang, Zhaoliang Song, Baozhang Chen, Yangjian Zhang, Wenping Yuan, Chu Chen, Wei Chen, Xiangbin Ran i Yidong Wang. "Mapping Coastal Wetlands of the Bohai Rim at a Spatial Resolution of 10 m Using Multiple Open-Access Satellite Data and Terrain Indices". Remote Sensing 12, nr 24 (16.12.2020): 4114. http://dx.doi.org/10.3390/rs12244114.

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Coastal wetlands provide essential ecosystem services and are closely related to human welfare. However, they can experience substantial degradation, especially in regions in which there is intense human activity. To control these increasingly severe problems and to develop corresponding management policies in coastal wetlands, it is critical to accurately map coastal wetlands. Although remote sensing is the most efficient way to monitor coastal wetlands at a regional scale, it traditionally involves a large amount of work, high cost, and low spatial resolution when mapping coastal wetlands at a large scale. In this study, we developed a workflow for rapidly mapping coastal wetlands at a 10 m spatial resolution, based on the recently emergent Google Earth Engine platform, using a machine learning algorithm, open-access Synthetic Aperture Radar (SAR) and optical images from the Sentinel satellites, and two terrain indices. We then generated a coastal wetland map of the Bohai Rim (BRCW10) based on the workflow. It has a producer accuracy of 82.7%, according to validation using 150 wetland samples. The BRCW10 data reflected finer information when compared to wetland maps derived from two sets of global high-spatial-resolution land cover data, due to the fusion of multiple data sources. The study highlights the benefits of simultaneously merging SAR and optical remote sensing images when mapping coastal wetlands.
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Smith, P. G. R., V. Glooschenko i D. A. Hagen. "Coastal Wetlands of Three Canadian Great Lakes: Inventory, Current Conservation Initiatives, and Patterns of Variation". Canadian Journal of Fisheries and Aquatic Sciences 48, nr 8 (1.08.1991): 1581–94. http://dx.doi.org/10.1139/f91-187.

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The decline of wetlands, including those in the Great Lakes coastal zone, prompted the Government of Ontario to initiate steps towards a wetland management policy in 1981. Wetland inventory and evaluation in southern Ontario began in 1983. To date, 1982 wetlands have been evaluated totalling 390 000 ha. These include 160 coastal wetlands, 64 of these on Lake Ontario and the remainder on the other Great Lakes and connecting channels. Current wetland conservation initiatives are outlined including the Wetlands Planning Policy Statement and Conservation Lands Act. Although the values of Ontario's coastal wetland areas are increasingly being recognized, there has been no comprehensive study to show patterns in coastal wetland ecology. Aided by analysis of variance, ordination, and cluster analysis, we show patterns of variation in wetland and site types, soils, dissolved solids, vegetation complexity, and rare flora and fauna which differ between wetlands along Lakes Ontario, Huron, Erie, St. Clair, and connecting channels. Wetlands of Lake Huron reflect a more northern species composition, less organic soil, and more swamp and fen habitat. Along Lakes Erie, Ontario, and St. Clair the predominant marshes have smaller swamp components, organic soils, and considerable dissolved solids.
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Peng, Jianwei, Shuguang Liu, Weizhi Lu, Maochou Liu, Shuailong Feng i Pifu Cong. "Continuous Change Mapping to Understand Wetland Quantity and Quality Evolution and Driving Forces: A Case Study in the Liao River Estuary from 1986 to 2018". Remote Sensing 13, nr 23 (2.12.2021): 4900. http://dx.doi.org/10.3390/rs13234900.

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Coastal wetland ecosystems, one of the most important ecosystems in the world, play an important role in regulating climate, sequestering blue carbon, and maintaining sustainable development of coastal zones. Wetland landscapes are notoriously difficult to map with satellite data, particularly in highly complex, dynamic coastal regions. The Liao River Estuary (LRE) wetland in Liaoning Province, China, has attracted major attention due to its status as Asia’s largest coastal wetland, with extensive Phragmites australis (reeds), Suaeda heteroptera (seepweed, red beach), and other natural resources that have been continuously encroached upon by anthropogenic land-use activities. Using the Continuous Change Detection and Classification (CCDC) algorithm and all available Landsat images, we mapped the spatial–temporal changes of LRE coastal wetlands (e.g., seepweed, reed, tidal flats, and shallow marine water) annually from 1986 to 2018 and analyzed the changes and driving forces. Results showed that the total area of coastal wetlands in the LRE shrank by 14.8% during the study period. The tidal flats were the most seriously affected type, with 45.7% of its total area lost. One of the main characteristics of wetland change was the concurrent disappearance and emergence of wetlands in different parts of the LRE, creating drastically different mixtures of wetland quality (e.g., wetland age composition) in addition to area change. The reduction and replacement/translocation of coastal wetlands were mainly caused by human activities related to urbanization, tourism, land reclamation, and expansion of aquaculture ponds. Our efforts in mapping annual changes of wetlands provide direct, specific, and spatially explicit information on rates, patterns, and causes of coastal wetland change, both in coverage and quality, so as to contribute to the effective plans and policies for coastal management, preservation, and restoration of coastal ecosystem services.
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Davidson, Nick C., i C. Max Finlayson. "Extent, regional distribution and changes in area of different classes of wetland". Marine and Freshwater Research 69, nr 10 (2018): 1525. http://dx.doi.org/10.1071/mf17377.

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We compiled available data and information on the global and regional areas (Ramsar regions), and changes in area, of 22 classes of marine or coastal and inland wetlands. From those classes for which there is information, inland natural surface wetlands (forming ~77% of total surface wetland extent) are dominated by non-forested peatlands, marshes and swamps on alluvial soils, with peatlands forming ~33% of natural inland wetlands. The smaller area of marine or coastal wetlands (~10% of total wetland extent) is dominated by unvegetated tidal flats and saltmarshes. Largest areas of human-made wetlands for which there is information are rice paddy and water storage bodies, with a much smaller area of tropical oil palm and pulpwood plantations. These human-made wetlands are all increasing in area. The reported decline in global natural wetland area is occurring across almost all classes of inland and marine or coastal natural wetlands. Total global wetland area estimated from these wetland classes is between 15.2×106 and 16.2×106km2, similar to recent global wetland area estimates derived from remote sensing. Given the considerable data gaps for area of wetland classes, even the most recent other estimates of global wetland extent are likely to be underestimates.
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Midwood, Jonathan, Daniel Rokitnicki-Wojcik i Patricia Chow-Fraser. "Development of an Inventory of Coastal Wetlands for Eastern Georgian Bay, Lake Huron". ISRN Ecology 2012 (17.04.2012): 1–13. http://dx.doi.org/10.5402/2012/950173.

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Coastal wetlands of eastern Georgian Bay provide critical habitat for a variety of wildlife, especially spawning and nursery habitat for Great Lakes fishes. Although the eastern shoreline has been designated a World Biosphere Reserve by UNESCO, a complete inventory is lacking. Prior effort by the Great Lakes Coastal Wetland Consortium (GLCWC) was unable to fully identify coastal wetland habitat in eastern Georgian Bay due to limited data coverage. Here we outline the methodology, analyses, and applications of the McMaster Coastal Wetland Inventory (MCWI) created from a comprehensive collection of satellite imagery from 2002–2008. Wetlands were manually delineated in a GIS as two broad habitat types: coastal marsh and upstream wetland. Coastal marsh was further subdivided into low marsh (LM; permanently inundated) and high marsh (HM; seasonally inundated) habitat. Within the coastal zone of eastern and northern Georgian Bay there are 12629 distinct wetland units comprised of 5376 ha of LM, 3298 ha of HM and 8676 ha of upstream habitat. The MCWI identifies greater total wetland area within the coastal zone than does the GLCWC inventory (17350 ha versus 3659 ha resp.). The MCWI provides the most current and comprehensive inventory of coastal wetlands in eastern Georgian Bay.
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Novoa, Vanessa, Octavio Rojas, Ramón Ahumada-Rudolph, Katia Sáez, Pablo Fierro i Carolina Rojas. "Coastal Wetlands: Ecosystems Affected by Urbanization?" Water 12, nr 3 (4.03.2020): 698. http://dx.doi.org/10.3390/w12030698.

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Coastal wetlands are ecosystems that provide multiple benefits to human settlements; nonetheless, they are seriously threatened due to both a lack of planning instruments and human activities associated mainly with urban growth. An understanding of their functioning and status is crucial for their protection and conservation. Two wetlands with different degrees of urbanization, Rocuant-Andalién (highly urbanized) and Tubul-Raqui (with little urbanization), were analyzed using temperature, salinity, dissolved oxygen, pH, turbidity, granulometry, fecal coliform, and macroinvertebrate assemblage variables in summer and winter. In both wetlands marked seasonality in salinity, temperature and sediment texture classification, regulated by oceanic influence and changes in the freshwater budget, was observed. In the Rocuant-Andalién wetland, the increases in pH, dissolved oxygen, gravel percentage, and coliform concentration were statistically significant. Urbanization generated negative impacts on macroinvertebrate assemblage structure that inhabit the wetlands; greater richness and abundance (8.5 times greater) were recorded in the Tubul-Raqui wetland than in the more urbanized wetland. The multivariate statistical analysis reflects the alteration of these complex systems.
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Rozprawy doktorskie na temat "Coastal wetlands"

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Compte, Ciurana Jordi. "Food webs of Mediterranean coastal wetlands". Doctoral thesis, Universitat de Girona, 2010. http://hdl.handle.net/10803/7879.

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En aquesta tesi doctoral s'han estudiat els efectes directes i indirectes de dos tipus d'espècies claus de la comunitat aquàtica dels aiguamolls de l'Empordà (aiguamolls costaners mediterranis amb una xarxa tròfica senzilla). S'han realitzat experiments al camp utilitzant microcosmos i mesocosmos i els resultats han estat analitzats mitjançant tres aproximacions: la taxonòmica, la funcional i la de mides. S'ha comprovat que en situacions amb absència de predadors i dominància d'una única espècie en el zooplàncton (en aquest cas Calanipeda aquaedulcis i Daphnia magna), la segregació del recurs entre els diferents estadis de desenvolupament de la mateixa espècie zooplanctònica és una estratègia per evitar la competència intraespecífica en condicions de limitació de recurs. Per altra banda, la presència de diferents top-predators a la comunitat aquàtica (en aquest cas la medusa Odessia maeotica i el peix Aphanius iberus) desencadena una cascada tròfica en el plàncton però amb efectes top-down diferents segons el top-predator.
In this PhD, direct and indirect effects of key species were studied in the aquatic community of the Empordà wetlands (Mediterranean coastal wetlands with a simple food web). Different field experiments were carried out using microcosms and mesocosms. To analyze the results, three approaches were used: taxonomic, functional and size-based. Results obtained from the experiments confirm that, in situation with absence of predator and dominance of single zooplanktonic specie (in this case Calanipeda aquaedulcis and Daphnia magna), resource partitioning among different developmental stages of same zooplanktonic specie is a strategy to reduce the intraespecific competence when the resource is limiting. On the other hand, the presence of different top-predators in aquatic community (in this case the jellyfish Odessia maeotica and the Iberian toothcarp Aphanius iberus) triggers a trophic cascade in plankton, however they have different top-down effects according to top-predator.
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Trobajo, Pujadas Rosa. "Ecological analysis of periphytic diatoms in Mediterranean coastal wetlands (Empordà wetlands, NE Spain)". Doctoral thesis, Universitat de Girona, 2003. http://hdl.handle.net/10803/7661.

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S'han estudiat els efectes dels factors ambientals sobre el perífiton dels sistemes lenític fluctuants del aiguamolls de l'Empordà. L'estudi s'ha realitzat als tres nivells d'integració: nivell d'ecosistema considerant el rol del perífiton envers els altres productors primaris; a nivell de comunitat, estudiant la composició específica de les diatomees i a nivell de població estudiant la plasticitat fenotípica d'una espècie de diatomea (Nitzschia frustulum).
A nivell d'ecosistema s'observa que els factors que afavoreixen el predomini dels diferents tipus de productors primaris (perífiton, fitoplàncton i macròfits) són la renovació i el grau d'eutròfia de l'aigua. A nivell de comunitat els factors determinants en la composició i distribució de les espècies de diatomees són els gradients confinament-inundació així com la productivitat del sistema. En funció d'aquest factors s'han establert 5 associacions de diatomees. A nivell de població es demostra que tant la salinitat, com la relació N : P a l'aigua com el moviment de l'aigua afecten la morfologia i ultraestructura de la valva de N. frustulum. De forma interessant s'observa que la salinitat, considerada com a factor individual, afecta N. frustulum a nivell poblacional provocant-li modificacions en la morfologia de la valva, per en canvi, no afecta a nivell de comunitat, ja que totes les espècies de diatomees presents en ambients de salinitat fluctuant són eurihalines.
The effects of environmental conditions on periphytic of lentic and fluctuating waters (Empordà wetlands) at the three different levels of organisation were studied: at ecosystem level, considering the role of periphyton among the primary producers; at community level, analysing the periphytic diatom species composition; and at population level studying the phenotypic plasticity of a selected diatom species (Nitzschia frustulum). The factors favouring the predominance of different primary productors (periphyton, phytoplankton and macrophytes) were the turnover and eutrophy of the water. At the community level, we observed that the main factors affecting diatom species composition and distribution are the gradients confinement-flooding and productivity of the system. Based on these factors 5 diatom assemblages have been distinguished. At the population level, the results of the present thesis proved that the morphology and ultrastructure of N. frustulum is affected by salinity, N : P ratio and movement of the water. Interestingly the results showed that salinity, as a single environmental factor, has effect at N. frustulum population level resulting in phenotypic plasticity while there is no effect of salinity at diatom community level since in such environments with fluctuating salinity all the species present are euryhaline.
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Pyo, Hee-Dong. "An economic evaluation of coastal wetlands in Korea". Thesis, University of Portsmouth, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343390.

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AN ECONOMIC EVALUATION OF COASTAL \VETLANDS IN KOREA BY IIEE-DONG PYO The thesis undertakes a detailed economic analysis of the coastal wetlands of Korea and applies the double-bounded dichotomous choice model and spike model of the contingent valuation method to systematically evaluate their conservation value. Further analysis including an extension of the original spike model using only singlcbounded data (Kristrom, I ()(n) to modelling double-bounded data for more statistical efficiency to deal with /.ero observations was made. As a result, the estimated willingness-to-pay for conserving the coastal wetlands under the study is S3.9 per month per household, and the annual aggregated conservation value for the entire nation is about 175 million dollars in a conservative scenario. The study then applies a benefit-cost analysis (8C';\) to coastal wetlands around the Youngsan River, an area of dispute between development and preservation in Korea, with a synthesised estimation of the ecosystcm functional values for coastal wetlands and rice paddies developed by reclamation. The results show wetland development would be preferred to its preservation in an optimistic seenano and conventional BC A, yielding NPV of $49million at the discount rate of 8(Yo, IRR of 8.28%, and B/C ratio of 1.03. By contrast, a normal scenario rejects economic feasibility for the development project at the discount rate of 8°/c), yielding a NPV of -$271 million, IRR of 6.5% and B/C ratio of 0.84. With an extended Be A including conservation values for I-year, 5-year and 1 O-year payment, the estimates of IRR are 7.42%, 5.42%, and 4.06%, respectively under the optimistic scenario. Meanwhile, under the nOnllal Scenario the estimates of IRR arc 5.85%, 4.25%, and 3.09%, respectively. In addition, this study includes a discussion of a comprehensiYe review of conjoint analysis and the integrated environmental management of coastal wetlands developing sustainability indicators for coastal lisheries using bio-economic models in Appendix.
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Ouyang, Xiaoguang. "Exploring Carbon Mineralisation and Burial in Coastal Wetlands". Thesis, Griffith University, 2017. http://hdl.handle.net/10072/370678.

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Mangroves and saltmarshes are ‘blue carbon’ ecosystems and studies on their carbon (C) dynamics have become highly topical. In these coastal wetlands, the aboveground biomass sequesters C and allocates C to belowground roots. A significant portion of aboveground biomass is transferred to the sediment as litterfall. Belowground roots and their exudates are ultimately decomposed by microbial communities. As the product of root decomposition, CO2 is released from the sediment surface and organic C (OC) contributes to sediment C burial. In addition, the decomposition of litter and sediment organic material also contributes to CO2 efflux from the sediment surface. The patterns of belowground C dynamics in blue C ecosystems remain unclear, especially sediment C burial, root C decomposition, and the relative contributions of different sources to sediment CO2 efflux. Further, sediment CO2 efflux and C storage have typically been examined separately in past research. Improved understanding of these patterns will help consolidate the theory of C cycling in coastal wetlands and facilitate effective ‘blue C’ management. My thesis aims to fill these gaps via systematic quantitative reviews and synthesis of literature data, field surveys and laboratory microcosm experiments. Studies on C stock in saltmarsh sediments have increased since the previous major review (Chmura et al., 2003). However, uncertainties exist in estimating global carbon storage in these vulnerable coastal habitats, thus hindering the assessment of their importance. Combining direct data and indirect estimation, my thesis compiled studies involving 143 sites across the southern and northern hemispheres, and provides an updated estimate of the global average carbon accumulation rate (CAR) at 244.7 g C m-2 yr-1 in saltmarsh sediments. Based on region-specific CAR and estimates of saltmarsh area in various geographic regions between 40°S to 69.7°N, total CAR in global saltmarsh sediments is estimated at ~ 10.2 Tg C yr-1. Latitude, tidal range and elevation appear to be important drivers for CAR of saltmarsh sediments, with considerable variation among different biogeographic regions. The data indicate that while the capacity for carbon sequestration by saltmarsh sediments ranked the first amongst coastal wetland and forested terrestrial ecosystems, their carbon budget was the smallest due to their limited and declining global areal extent. However, some uncertainties remain for this global estimate owing to limited data availability. One of the aims of this thesis was to determine the drivers of root decomposition and its role in C budgets in mangroves and saltmarsh: the patterns of root decomposition, and its contribution to C budgets, in mangroves and saltmarsh. The impact of climatic (temperature and precipitation), geographic (latitude), temporal (decay period) and biotic (ecosystem type) drivers was explored using multiple regression models. Best-fit models explain 50% and 48% of the variance in mangrove and saltmarsh root decay rates, respectively. A combination of biotic, climatic, geographic and temporal drivers influence root decay rates. Rainfall and latitude have the strongest influence on root decomposition rates in saltmarsh. For mangroves, forest type is the most important; decomposition is faster in riverine mangroves than other types. Mangrove species Avicennia marina and saltmarsh species Spartina maritima and Phragmites australis have the highest root decomposition rates. Root decomposition rates of mangroves were slightly higher in the Indo-west Pacific region (average 0.16 % day-1) than in the Atlantic-east Pacific region (0.13 % day-1). Mangrove root decomposition rates also show a negative exponential relationship with porewater salinity. In mangroves, global root decomposition rates are 0.15 % day-1 based on the median value of rates in individual studies (and 0.14 % day-1 after adjusting for area of mangroves at different latitudes). In saltmarsh, global root decomposition rates average 0.12 % day-1 (no adjustment for area with latitude necessary). The global estimate of the amount of root decomposing is 10 Tg C yr-1 in mangroves (8 Tg C yr-1 adjusted for area by latitude) and 31 Tg C yr-1 in saltmarsh. Local root C burial rates reported herein are 51-54 g C m-2 yr-1 for mangroves (58-61 Tg C yr-1 adjusted for area by latitude) and 191 g C m-2 yr-1 for saltmarsh. These values account for 24.1-29.1% (mangroves) and 77.9% (saltmarsh) of the reported sediment C accumulation rates in these habitats. Globally, dead root C production is the significant source of stored sediment C in mangroves and saltmarsh. Mangroves are blue carbon ecosystems that sequester significant carbon but release CO2, and to a lesser extent CH4, from the sediment through oxidation of organic carbon or from overlying water when flooded. Previous studies, e.g. Leopold et al. (2015), have investigated sediment organic C (SOC) content and CO2 flux separately, but did not provide a holistic perspective for both components of blue carbon. Based on field data from a mangrove in southeast Queensland, Australia, this thesis used a structural equation model to elucidate (1) the biotic and abiotic drivers of surface SOC (10 cm) and sediment CO2 flux; (2) the effect of SOC on sediment CO2 flux; and (3) the covariation among the environmental drivers assessed. Sediment water content, the percentage of fine-grained sediment (<63μm), surface sediment chlorophyll and light condition collectively drive sediment CO2 flux, explaining 41% of their variation. Sediment water content, the percentage of fine sediment, season, landform setting, mangrove species, sediment salinity and chlorophyll collectively drive surface SOC, explaining 93% of its variance. Sediment water content and the percentage of fine sediment have a negative impact on sediment CO2 flux but a positive effect on surface SOC content, while sediment chlorophyll is a positive driver of both. Surface SOC was significantly higher in Avicennia marina (2994±186 g m-2, mean+ SD) than in Rhizophora stylosa (2383± 209 g m-2). SOC was significantly higher in winter (2771±192 g m-2) than in summer (2599±211 g m-2). SOC significantly increased from creek-side (865±89 g m-2) through mid (3298±137 g m-2) to landward (3933±138g m-2) locations. Sediment salinity was a positive driver of SOC. Sediment CO2 flux without the influence of biogenic structures (crab burrows, aerial roots) averaged 15.4 mmol m-2 d-1 in A. marina stands under dark conditions, lower than the global average dark flux (61 mmol m-2 d-1) for mangroves. CO2 flux is a critical component of the global C budget. While CO2 flux has been increasingly studied in mangroves, few studies partition components contributing to the flux. Partitioning CO2 flux sources helps constrain C budgets. We developed the combined 13C stable isotope labelling and closed chamber technique. The technique was used to partition CO2 efflux from the seedlings of mangrove Avicennia marina in laboratory microcosms, with a focus on sediment CO2 efflux. The result showed that (1) canopy was the chief component of ecosystem CO2 efflux, (2) the degradation of sediment organic matter was the major component of sediment CO2 efflux, followed by root respiration and litter decomposition via isotope mixing models. There was a significant relationship between δ13C values of CO2 released at the sediment-air interface and both root respiration and sediment organic matter decomposition. The findings provide the relative contribution of different components to ecosystem and sediment CO2 efflux, and thus can partition the sources of ecosystem respiration and sediment C mineralization in mangroves. My thesis demonstrates that saltmarshes play a disproportionately important role in sediment C accumulation (244.7 g C m-2 yr-1) although their global area extent is declining, and saltmarsh CAR varies with latitude, tidal range, elevation and biogeographic regions. Dead root production contributes a significant proportion to sediment C in both mangroves and saltmarsh, and the updated global estimate of root C decomposition (8 Tg C yr-1) in mangroves reflects an underestimate in the reported value (5 Tg C yr-1). In a sub-tropical mangrove forest, SOC content and CO2 flux are influenced by sediment physio-chemical properties, and/or species, light conditions. Sediment water content and the percentage of fine sediment have contrasting effect on both but sediment chlorophyll is a positive driver of both, and these factors may be highlighted in ‘blue C’ management of this mangrove. In establishing mangroves (Avicennia marina), the result of a laboratory microcosm experiment shows that canopy was the major source of ecosystem CO2 efflux. The decomposition of roots contributes more to sediment CO2 efflux in comparison with sediment organic matter, which is in contrast to the pattern in mature mangroves.
Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Griffith School of Environment
Science, Environment, Engineering and Technology
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Theriault, Holly Jean. "Stratigraphic Analysis and Transgression Rates of Maine's Coastal Wetlands Due to Rising Sea Level". Fogler Library, University of Maine, 2008. http://www.library.umaine.edu/theses/pdf/TheriaultHJ2008.pdf.

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Seilheimer, Titus Spear Chow-Fraser Patricia. "Development and use of fish-based indicators of wetland quality for Great Lakes coastal wetlands". *McMaster only, 2006.

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Powell, Paula Angele. "The effects of hydrology and nutrient inputs at South Milton Ley on the ecology of the common reed Phragmites australis (Cav. Trin. ex Steudal)". Thesis, University of Plymouth, 2000. http://hdl.handle.net/10026.1/2061.

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South Milton Ley is a small coastal wetland in Southern England. A sand-bar forms periodically at its seaward end and separates fresh water from the sea. The common reed Phragmites australis dominates the wetland and when a sand bar is present a shallow freshwater lake forms. Monthly water budgets were prepared for the years 1994, 1995 and 1996 and intermittent flooding of the Ley was also monitored. This information was used to calculate a range of residence times (between one hour and eleven days) and the characteristics of various flow regimes when the sandbar, which dams the Ley, is open or closed. Reed growth and the lake's ecology are potentially influenced by effluent from a sewage treatment works (STW) that discharges into the wetland. Water chemistry and hydrology of the wetland have been studied alongside experiments to investigate any effects of nutrient enrichment from the STW on reed growth. Inflowing and outflowing waters were analysed in order to determine concentrations of total oxidised nitrogen (TON), total dissolved nitrogen (TDN), soluble reactive phosphorus (SRP), total dissolved phosphorus (TDP) and potassium (K). Over the study period the annual load of SRP to the Ley increased from 3.65 gmˉ² aˉ¹ in 1992 to 8.1 gmˉ² aˉ¹ in 1996. TON load rose from 69.35 g mˉ² aˉ¹ in 1992 to 104.8 g mˉ² aˉ¹ in 1996. K fell from 97.3 g mˉ² aˉ¹ in 1994 to 96.4 g mˉ² aˉ¹ in 1996. The STW uses a Reedbed Treatment System (RBTS) to 'polish' its final effluent. The efficiency o f the RBTS was studied and during 1996 the efficiency rate for T ON was 20.9% and for SRP was 9.3%. Measurements of height, diameter, numbers of internodes, density and biomass of reeds collected from South Milton Ley were undertaken during August 1994 and 1995. Results of analyses for 1994 indicate that reeds were thinner and possessed fewer seedheads than those of 1995 but that density was greater. Reed fieldwork during 1994 found that height, diameter, numbers of internodes, biomass and number of seedheads were greater below the STW than above. During 1995 only seedhead production was greater below the outlet. The wettest area of the Ley contained reeds with greatest height and diameter. The driest area produced a higher density of reed growth. Laboratory experiments suggested that low N:K ratios and high P:K produced taller plants. Data from reed fieldwork together with results from hydrology and water chemistry studies were used in a statistical analysis in order to determine which, if any of these factors caused changes in reed growth. A conclusive link between water chemistry, hydrology and plant variables was not found. Correlation analysis for 1994 indicated that high concentrations of SRP and TON could produce thin reeds with low biomass. Analysis for 1995 suggested that elevated K values could produce a high density of short reeds. Water depth was found to have a significant effect (P < 0.001) on diameter. The key factors for reed decline (high water levels from spring to winter which can inhibit reed regeneration and increase residence times, increasing nutrient loads and changes in the ratio of N:P:K which could alter reed growth) are all present. At its present loading the Ley is nutrient rich and does not appear to be buffering wetland waters. After data analysis and fieldwork was completed a bloom of Oscillatoria sp.occurred at the seaward end of the Ley during August 1999. This, the first know occurrence of a bloom may be an indication that changes in the ecosystem of South Milton Ley are occurring. For the future, a programme of nutrient reduction, hydrological management and growing knowledge of wetland processes may prevent adverse changes.
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Wilson, Benjamin J. "Drivers and Mechanisms of Peat Collapse in Coastal Wetlands". FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3718.

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Coastal wetlands store immense amounts of carbon (C) in vegetation and sediments, but this store of C is under threat from climate change. Accelerated sea level rise (SLR), which leads to saltwater intrusion, and more frequent periods of droughts will both impact biogeochemical cycling in wetlands. Coastal peat marshes are especially susceptible to saltwater intrusion and changes in water depth, but little is known about how exposure to salinity affects organic matter accumulation and peat stability. I investigated freshwater and brackish marsh responses to elevated salinity, greater inundation, drought, and increased nutrient loading. Elevated salinity pulses in a brackish marsh increased CO2 release from the marsh but only during dry-down. Elevated salinity increased root mortality at both a freshwater and brackish marsh. Under continuously elevated salinity in mesocosms, net ecosystem productivity (NEP) was unaffected by elevated salinity in a freshwater marsh exposed to brackish conditions (0 à 8 ppt), but NEP significantly increased with P enrichment. Elevated salinity led to a higher turnover of live to dead roots, resulting in a ~2-cm loss in soil elevation within 1 year of exposure to elevated salinity. When exposing a brackish marsh to more saline conditions (10 à 20 ppt), NEP, aboveground biomass production, and root growth all significantly decreased with elevated salinity, shifting the marsh from a net C sink to a net C source to the atmosphere. Elevated salinity (10 à 20 ppt) did not increase soil elevation loss, which was already occurring under brackish conditions, but when coupled with a drought event, elevation loss doubled. My findings suggest these hypotheses for the drivers and mechanisms of peat collapse. When freshwater marshes are first exposed to elevated salinity, soil structure and integrity are negatively affected through loss of live roots within the soil profile, leaving the peat vulnerable to collapse even though aboveground productivity and NEP may be unaffected. Subsequent dry-down events where water falls below the soil surface further accelerate peat collapse. Although saltwater intrusion into freshwater wetlands may initially stimulate primary productivity through a P subsidy, the impact of elevated salinity on root and soil structure has a greater deleterious effect and may ultimately be the factors that lead to the collapse of these marshes.
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Regan, Matthew. "Plant community response to wetland enhancement techniques in coastal wetlands of the upper St. Lawrence River". Thesis, State University of New York Col. of Environmental Science & Forestry, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10254553.

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Stabilized water levels of the upper St. Lawrence River have reduced plant diversity and allowed competitively dominant taxa such as Typha x glauca and Typha angustifolia to displace productive sedge meadow habitat. This research studied the effects of two wetland enhancement techniques using habitat heterogeneity and manipulating hydrology. Dredge spoils from pothole excavations in Typha marshes were reconfigured to create habitat mounds. These habitat mounds created from an exposed seed bank had less Typha spp. and were more diverse than the surrounding remnant Typha marshes. Sedge meadow vegetation did not successfully colonize these habitat mounds. Water levels at two wetlands were raised above the water levels of the upper St. Lawrence River. Raising water levels increased floating leaf aquatic vegetation but did not decrease Typha spp. Alternative enhancement methods may be necessary to control Typha spp. while restoring sedge meadows.

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Wilton, Kylee Margaret, i res cand@acu edu au. "Coastal Wetland Habitat Dynamics in Selected New South Wales Estuaries". Australian Catholic University. School of Arts and Sciences, 2002. http://dlibrary.acu.edu.au/digitaltheses/public/adt-acuvp29.29082005.

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Intertidal wetland habitats in southeastern Australia have changed significantly during the past sixty years. Mangrove habitats have expanded both seawards and landwards, the latter being at the expense of saltmarsh habitats. This relatively common phenomenon is generally suggested to be an outcome of sea-level rise. Several factors potentially responsible for this change are examined, including changes in mean sealevel during the past 50 to 100 years, changes in climate, population growth, catchment landuse, and estuary type. A protocol for mapping estuarine habitats was developed and implemented, incorporating the application of geographic information systems. Spatial and temporal coastal wetland habitat changes at nine sites along the New South Wales coast are illustrated. These habitat dynamics were shown to not correlate between sites. The results demonstrate that sea-level rise in this region cannot solely account for the extent of change during the past sixty years. With the exception of one site (Careel Bay), there have been no correlations between contemporary mean sea-level rise and mangrove incursion of the saltmarsh habitats at the study sites, or with rainfall patterns, at the scale of observation in this study, which was largely decadal. The only correlations determined during this study have been between population growth and coastal wetland habitat dynamics in some sites. In spite of saltmarsh habitat loss being a regional phenomenon, local factors appear to have a profound bearing on the rates of change. Neither contemporary mean sea-level rise, rainfall patterns, estuary type, catchment landuse, catchment natural cover nor population pressure can account solely for the patterns in the spatial and temporal dynamics of the coastal wetlands of New South Wales. It seems apparent that regional factors create preconditions favourable for mangrove incursion, but that localised conditions have been responsible for the extent of these incursions from site to site. That is, despite higher sea-level and greater rainfall, the extent of change has been determined by the unique characteristics of each site. The results have important implications for current estuary management practices in the state of New South Wales. The lack of spatial and temporal trends in coastal wetland habitat dynamics point to the need for management to be conducted on a localised, rather than regional scale. Additionally, anthropogenic influences must be carefully managed, since the extent of mangrove habitat expansion into saltmarsh areas is unlikely to be a natural occurrence.
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Książki na temat "Coastal wetlands"

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United States. Government Accountability Office., red. Coastal wetlands. New York: Nova Science Publishers, 2008.

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Moulton, Daniel W. Texas coastal wetlands guidebook. Bryan, Tex: Texas Sea Grant College Program, 2000.

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Symposium on Coastal and Ocean Management (7th 1991 Long Beach, Calif.). Coastal wetlands. Redaktor Bolton H. Suzanne. New York, N.Y: American Society of Civil Engineers, 1991.

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Yamashita, Hiromi. Coastal Wetlands Restoration. London: Routledge, 2021. http://dx.doi.org/10.4324/9780367863098.

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Forder, Douglas R. Coastal wetlands rehabilitation plan. [Toronto]: Metro Toronto & Region Remedial Action Plan, 1998.

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McClure, Nikki. Washington's wetlands. Olympia, Wash: Washington State Dept. of Ecology, 1992.

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McClure, Nikki. Washington's wetlands. Olympia, Wash: Washington State Dept. of Ecology, 1992.

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McMillan, Andrew. Washington's wetlands. [Olympia, Wash.]: Washington State Dept. of Ecology, 1986.

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Blamey, Russell. Economics and the evaluation of coastal wetlands. Brisbane, Qld: Department of Primary Industries, 1992.

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Zhongguo bin hai shi di. Beijing: Hai yang chu ban she, 2012.

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Części książek na temat "Coastal wetlands"

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Burroughs, Richard. "Wetlands". W Coastal Governance, 87–103. Washington, DC: Island Press/Center for Resource Economics, 2011. http://dx.doi.org/10.5822/978-1-61091-016-3_6.

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Semeniuk, V., i C. A. Semeniuk. "Coastal Wetlands". W The Wetland Book, 1–6. Dordrecht: Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-007-6172-8_330-1.

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Semeniuk, Vic, i Christine A. Semeniuk. "Coastal Wetlands". W The Wetland Book, 1501–6. Dordrecht: Springer Netherlands, 2018. http://dx.doi.org/10.1007/978-90-481-9659-3_330.

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Rey, Jorge R. "Coastal Wetlands". W Encyclopedia of Estuaries, 160–64. Dordrecht: Springer Netherlands, 2015. http://dx.doi.org/10.1007/978-94-017-8801-4_192.

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Ritchie, William, Katherine Pond, Edward J. Anthony, George Maul, Patricia L. Wiberg, Miles O. Hayes, Andrew D. Short i in. "Wetlands". W Encyclopedia of Coastal Science, 1077–81. Dordrecht: Springer Netherlands, 2005. http://dx.doi.org/10.1007/1-4020-3880-1_352.

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Coleman, James M., i H. H. Roberts. "Deltaic coastal wetlands". W Coastal Lowlands, 1–24. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-017-1064-0_1.

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McGrath, Tim. "To enable communities to engage with the biggest European tidal flat and saltmarsh restoration project". W Coastal Wetlands Restoration, 33–45. London: Routledge, 2021. http://dx.doi.org/10.4324/9780367863098-4.

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Yamashita, Hiromi, i Naoyuki Mikami. "Community perceptions towards the risks and benefits of a mangrove restoration project". W Coastal Wetlands Restoration, 79–86. London: Routledge, 2021. http://dx.doi.org/10.4324/9780367863098-8.

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Yamashita, Hiromi, i Naoyuki Mikami. "Opportunities for coastal wetland restoration and community development for the future". W Coastal Wetlands Restoration, 133–46. London: Routledge, 2021. http://dx.doi.org/10.4324/9780367863098-13.

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Mikami, Naoyuki, i Hiromi Yamashita. "Tidal flat restoration projects in Shima City and citizens' perceptions". W Coastal Wetlands Restoration, 121–32. London: Routledge, 2021. http://dx.doi.org/10.4324/9780367863098-12.

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Streszczenia konferencji na temat "Coastal wetlands"

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Dabelow, Steven, i Ning Zhang. "Evaluation of the Effectiveness of a Coastal Wave Reduction and Sediment Retention Structure Using CFD Simulations". W ASME 2017 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/fedsm2017-69219.

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The Louisiana coast experiences significant erosion due to wave actions. There are wetlands and marshes located in the coastal areas, however loss of these wetlands is a major threat. Although coastal waves and floods cause erosion, they do carry sediments, which can potentially counter-act some of the wetland losses. Innovative shoreline protection designs that reduce the wave actions but still allow sediments to travel through could be very beneficial. This research aims to evaluate the effectiveness of the wave reduction and sediment retention of several such designs using CFD simulations. CFD simulations were used to determine the alternations of the wave characteristics and the sediment transport with the designed structures. Small scale experiments of such designs will be conducted in a wave tank facility to validate the modeling results. The research aims to disclose the detailed physics of the flow and sediment transport in this complicated flow-structure interaction problems, and, based on the discoveries, we will provide suggestions to improve the current design to enhance the performance significantly.
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Wang, Juan, Zhiguo Bu i Zhongqiang Li. "Application of Remote Sensing Technology in Tianjin Binhai New Area Coastal Zone Monitoring". W ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/omae2010-20987.

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The coastal zone is the belt influenced by land and ocean interactions, as well as human factors. So its evolution depends not only on natural factors but also on human socio-economic activities. It has very good instructive meaning to provide timely accurate coastal zone changeing information for exploiting and protecting the coast. Using 5 periods’ remote sensing images covering 20 years from 1987 to 2008 of Tianjin city, this paper extracted the coastline and the wetlands from different years utilizing different methods and techniques of data image processing and visual interpretation based on the characteristic of each RS image. The paper analyzed the law of the coastline and the wetlands changes in both spatial and temporal aspects, and then discussed the major influential factor to the changes by analyzing natural and artificial factors. The results indicated that the total coastline and the natural coastline increased, while the artificial seashore and wetlands decreased in large scale in the 20 years, due to the development of the coastal industry. Thanks to the protection and reinstatement for wetlands, the area of wetlands increased in the past two years.
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Ouyang, Huanrong, Joshua Hantz, Tam Nguyen, Amy Harrington i Ning Zhang. "Numerical Analysis of Breakwaters Turbulence Under Coastal Wave Actions". W ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-88613.

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Due to the coastal wave actions, Louisiana coastline has been experiencing serious depletion of wetlands over decades. The loss of wetlands is threating the environment and the economic development of Louisiana. Therefore, breakwaters are designed to protect the coastline from coastal erosion and wetland losses by dissipating the energy of waves and changing the transport of sediment which is brought by the waves. The objective of this research was to give a numerical analysis of 2-dimensional breakwaters under wave actions and 3-dimensional breakwaters turbulence characteristics under coastal wave actions using CFD simulation. In this research, three breakwater structures are tested: a solid panel with no holes, a panel with three holes, and a panel with eight holes. The breakwater designs aim to allow sediment pass through the holes, to deposit and accumulate sediment at target areas, and to reduce wave actions. There were three different cases simulated with wave actions and without wave actions in this study, each case using a different panel design. The results of this study were mainly compared with the 2-dimensional CFD simulation analysis conducted previously to prove the accuracy.
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Zhang, Ning, i Weihao Wang. "Investigation of Water pH in Calcasieu Lake Area Using Regional Scale Hydrodynamic Models". W ASME 2017 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/fedsm2017-69208.

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In Southwest Louisiana, the Calcasieu Lake and surrounding water systems are the major fresh water sources to the nearby coastal wetlands and agricultural areas. There are two national wide life refuges located in both east and west sides of Calcasieu Lake. Both refuges are covered by coastal wetlands. The health of the wetland vegetation is essential to the wetland losses in the area. One of the major problems related to the health of marshes is the nutrient deficiency. In addition, the surface water system is a possible source for agriculture use that requires sufficient nutrient components in water. Understanding the transport and distribution of various nutrients in the coastal water system is very important to the above-mentioned issues. In this study, a regional scale hydrodynamic model was utilized to simulate the hydrodynamics, salinity transport and sediment transport in this major water system in Southwest Louisiana. The pH distribution in water is a good indication of many nutrient components, such as phosphorous, and is essential to understand the nutrient distributions in the target area. A pH calculation procedure was implemented in the model to determine pH values based on the salinity and other water properties. The model results can be used to indicate the dynamic change of nutrient distributions and the areas of nutrient deficiency.
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Katmarian, R. Eric, Philip A. McKee i Timothy W. Kana. "Hydraulic Controls on Tidal Wetlands". W 25th International Conference on Coastal Engineering. New York, NY: American Society of Civil Engineers, 1997. http://dx.doi.org/10.1061/9780784402429.334.

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Möller, I. "Bio-physical linkages in coastal wetlands – implications for coastal protection". W NCK-days 2012 : Crossing borders in coastal research. Enschede, the Netherlands: University of Twente, Department of Water Engineering & Management, 2012. http://dx.doi.org/10.3990/2.170.

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Boudreau, Russell H., Michael P. Hemphill i Weixia Jin. "Engineering Considerations for Coastal Wetland Restoration". W Wetlands Engineering and River Restoration Conference 2001. Reston, VA: American Society of Civil Engineers, 2001. http://dx.doi.org/10.1061/40581(2001)89.

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Klemas, V. V., R. T. Field i O. Weatherbee. "Remote sensing of coastal wetlands and estuaries". W 2004 USA-Baltic International Symposium. IEEE, 2004. http://dx.doi.org/10.1109/baltic.2004.7296820.

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Peteet, Dorothy, Molly Dunton, Molly Dunton, Carol Wang-Mondaca, Carol Wang-Mondaca, Grant Pace, Grant Pace i in. "NYC COASTAL WETLANDS - SHIFTING VALUES THROUGHOUT HISTORY". W Joint 69th Annual Southeastern / 55th Annual Northeastern GSA Section Meeting - 2020. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020se-345465.

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Möller, I., J. Lendzion, T. Spencer, A. Hayes i S. Zerbe. "The sea-defence function of micro-tidal temperate coastal wetlands". W COASTAL PROCESSES 2009. Southampton, UK: WIT Press, 2009. http://dx.doi.org/10.2495/cp090051.

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Raporty organizacyjne na temat "Coastal wetlands"

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Dr. Ali Ansari i Ms. Lilibeth de Los Santos. LOUISIANA COASTAL WETLANDS MODELING. Office of Scientific and Technical Information (OSTI), grudzień 1999. http://dx.doi.org/10.2172/765427.

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Styles, Richard, David W. Perkey, S. Jarrell Smith, Duncan B. Bryant, Joseph Z. Gailani i Brandon M. Boyd. Hydrodynamics of a recently restored coastal wetland : Hamilton Wetlands, California. Engineer Research and Development Center (U.S.), lipiec 2020. http://dx.doi.org/10.21079/11681/37313.

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Purcell, Andrew D., Puskar Khanal, Thomas Straka i David B. Willis. Valuing Ecosystem Services of Coastal Marshes and Wetlands. Land Grant Press, styczeń 2020. http://dx.doi.org/10.34068/report4.

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Suir, Glenn, i Charles Sasser. Floristic Quality Index of restored wetlands in coastal Louisiana. Environmental Laboratory (U.S.), wrzesień 2017. http://dx.doi.org/10.21079/11681/22930.

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Thilenius, T. F. Phytosociology and succession on earthquake-uplifted coastal wetlands, Copper River Delta, Alaska. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1995. http://dx.doi.org/10.2737/pnw-gtr-346.

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Carnell, P. E., S. E. Reeves, E. Nicholson, P. Macreadie, D. Ierodiaconou, M. Young, J. Kelvin i in. Mapping Ocean Wealth Australia: The value of coastal wetlands to people and nature. The Nature Conservancy, listopad 2019. http://dx.doi.org/10.21153/carnell2019mapping.

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Thorne, Sarah, David Kovacs, Joseph Gailani i Burton Suedel. A community engagement framework using mental modeling : the Seven Mile Island Innovation Lab community engagement pilot—Phase I. Engineer Research and Development Center (U.S.), sierpień 2022. http://dx.doi.org/10.21079/11681/44983.

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The US Army Corps of Engineers (USACE) engages and collaborates with multiple stakeholders—from agency partners, to public, private, and not-for-profit organizations, to community residents—to develop its dredged-sediment long-term management strategy (LTMS) that expands benefi-cial-use (BU) practices. In spring 2019, USACE collaborated with Decision Partners, the USACE–Philadelphia District Operations Division, The Wetlands Institute, and the Engineering With Nature program leadership to adapt, test, and refine the proven behavioral-science-based processes, methods, and tools based on Decision Partners’ Mental Modeling Insight, or MMI, approach for engaging stakeholders, including community members, as part of the Seven Mile Island Innovation Laboratory (SMIIL) initiative in coastal New Jersey. The team identified key community stakeholders and conducted research to better understand their values, interests, priorities, and preferences regarding wetlands and USACE activities in the Seven Mile Island area and those activities’ effects on wetlands, including protecting the environment, wildlife habitat, aesthetic beauty, maintaining navigability, and supporting coastal resilience. Understanding stakeholder needs, values, interests, priorities, and preferences is key to designing effective engagement strategies for diverse communities for SMIIL and provides a foundation for the community engagement framework currently being developed for application across USACE.
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Boyle, Maxwell, i Elizabeth Rico. Terrestrial vegetation monitoring at Timucuan Ecological and Historic Preserve: 2019 data summary—Version 2.0. National Park Service, luty 2022. http://dx.doi.org/10.36967/nrds-2290196.

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The Southeast Coast Network (SECN) conducts long-term terrestrial vegetation monitoring as part of the nationwide Inventory and Monitoring Program of the National Park Service (NPS). The vegetation community vital sign is one of the primary-tier resources identified by SECN park managers, and it is currently conducted on 15 network parks (DeVivo et al. 2008). Monitoring plants and their associated communities over time allows for targeted understanding of ecosystems within the SECN geography, which provides managers information about the degree of change within their parks’ natural vegetation. 2019 marks the first year of conducting this monitoring effort on four SECN parks, including Timucuan Ecological and Historic Preserve (TIMU). A total of 23 vegetation plots were established in the park in May and June. Data collected in each plot include species richness across multiple spatial scales, species-specific cover and constancy, species-specific woody stem seedling/sapling counts and adult tree (greater than 10 centimeters [3.9 inches (in)]) diameter at breast height (DBH), overall tree health, landform, soil, observed disturbance, and woody biomass (i.e., fuel load) estimates. This report summarizes the baseline (year 1) terrestrial vegetation data collected at Timucuan Ecological and Historic Preserve in 2019. Data were stratified across three dominant broadly defined habitats within the park (Coastal Plain Nonalluvial Wetlands, Coastal Plain Open Uplands and Woodlands, and Maritime Upland Forests and Shrublands) and three land parcels (Cedar Point, Theodore Roosevelt, and Thomas Creek). Noteworthy findings include: A total of 157 vascular plant taxa (species or lower) were observed across 23 vegetation plots, including nine species not previously known from the park. Three plots were located in the footprint of the Yellow Bluff Fire, and were sampled only two weeks following the fire event. Muscadine (Muscadinia rotundifolia), cat greenbrier (Smilax glauca), water oak (Quercus nigra), and swamp tupelo (Nyssa biflora) were the most frequently encountered species in Coastal Plain Nonalluvial Wetland habitat; saw palmetto (Serenoa repens), slash pine (Pinus elliottii), and gallberry (Ilex glabra) were the most frequently encountered species in Coastal Plain Open Upland and Woodland habitat; and Darlington oak (Quercus hemisphaerica), Spanish moss (Tillandsia usenoides), and red bay (Persea borbonia) were the most frequently encountered species in Maritime Upland Forests and Shrublands. There were no exotic species of the Florida Exotic Pest Plant Council list of invasive plants (FLEPPC 2020) observed on any of these plots. Both red bay and swamp bay (Persea palustris) were largely absent from the tree stratum in these plots; however, they were present (occasionally in high abundance) in the seedling and sapling strata across all habitat types. Buckthorn bully (Sideroxylon lycioides)—listed as Endangered in the state of Florida by the Florida Department of Agriculture and Consumer Services (FDACS 2020)—was observed in three Maritime Upland Forest and Shrubland plots. The tree strata in each broadly defined habitat were dominated by the following species: Coastal Plain Nonalluvial Wetlands-loblolly bay (Gordonia lasianthus) Coastal Plain Open Uplands and Woodlands-longleaf pine (Pinus palustris) Maritime Upland Forests and Shrublands-oaks (Quercus sp.) Most stems within the tree strata exhibited healthy vigor and only moderate dieback across all habitat types. However, there was a large amount of standing dead trees in plots within Maritime Upland Forests and Shrublands. Downed woody biomass (fuel loads) were highest in the Cedar Point and Thomas Creek land parcels.
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Piercy, Candice, Safra Altman, Todd Swannack, Carra Carrillo, Emily Russ i John Winkelman. Expert elicitation workshop for planning wetland and reef natural and nature-based features (NNBF) futures. Engineer Research and Development Center (U.S.), sierpień 2021. http://dx.doi.org/10.21079/11681/41665.

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This special report discusses the outcomes of a September 2019 workshop intended to identify barriers to the consideration and implementation of natural and nature-based features (NNBF) in US Army Corps of Engineers (USACE) civil works projects. A total of 23 participants representing seven USACE districts, the US Army Engineer Research and Development Center (ERDC), and the University of California–Santa Cruz met at USACE’s South Atlantic Division Headquarters in Atlanta, Georgia, to discuss how to facilitate the implementation of NNBF into USACE project planning for wetlands and reefs using six categories: (1) site characterization, (2) engineering and design analysis, (3) life-cycle analysis, (4) economic analysis, (5) construction analysis, (6) and operation and maintenance (and monitoring). The workshop identified seven future directions in wetland and reef NNBF research and development: • Synthesize existing literature and analysis of existing projects to better define failure modes. • Determine trigger points that lead to loss of feature function. • Identify performance factors with respect to coastal storm risk management (CSRM) performance as well as ecological performance. • Focus additional research into cobenefits of NNBF. • Quantify the economic life-cycle costs of a project. • Improve technology transfer with regards to NNBF research and topics.
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Yozzo, David J., i John P. Titre. Coastal Wetland Restoration Bibliography. Fort Belvoir, VA: Defense Technical Information Center, sierpień 1997. http://dx.doi.org/10.21236/ada329280.

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