Bibliografie tematiche / Wetlands research

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Letteratura scientifica selezionata sul tema "Wetlands research"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 20 febbraio 2023

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Articoli di riviste sul tema "Wetlands research"

1

Ling, Zhen, Ju Rui Yang e Zhe Nai Lu. "Research on the Effect of Sewage Concentration on Treatment Efficiency of Constructed Wetlands". Advanced Materials Research 356-360 (ottobre 2011): 1510–15. http://dx.doi.org/10.4028/www.scientific.net/amr.356-360.1510.

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By changing the surface flow(SF) and subsurface flow (SSF)constructed wetlands inflow water total nitrogen (TN) concentrations, with 6 plant species (purple leaf canna, water onion, water hyacinth, water celery, calamus, reed) in comparative experiments, comparative analysis of the 6 different SF and SSF constructed wetlands treatment rate with the variation of the concentration obtained in the 6 different plant SF and SSF constructed wetlands, the optimal concentration theory, theory of optimal removal rate, the actual optimal concentration, the actual optimal removal rate and TN maximum daily processing load. The results showed that: in the 6 different plant of SF and SSF constructed wetlands for TN removal efficiency decreased as the concentration increased, different plant, different levels of treatment rate reduction, and removal value of SSF was lower than SF. Purple leaf canna removal reduced the minimum, SF processing rate decreased 17.07%, SSF dropped 15.94%; Reed removal rate decreased obviously, the SF processing rate decreased 20.86%, SSF dropped 18.2%. Meanwhile, according to the result of the experiment, the maximum TN daily remove quantity in the six species of plants of SF constructed wetland was 547.20 g•m-2•d-1;in SSF constructed wetland was 577.60 g•m-2•d-1. Wetland as an efficient, low consumption of new sewage treatment technology has been widely accepted, especially in total nitrogen (TN) in the application phase for the people attention. Study found that of nitrogen removal efficiency of constructed wetlands and external factors, a wetland substrate, plant species, microbes, sewage load, residence time, nitrogen in sewage and water distribution methods[1]. For the wastewater load on the removal of wetlands, Zhou Yaohua so that low concentration of domestic sewage (20% water) on the ground flora as a whole more effective than a higher concentration of the decontamination wastewater (100% effluent) better overall removal [2]. Cui Fang water residence time in the study of the impact of decontamination capability of wetlands that the reed wetland water CODcr, TP, NH3-N concentration had little effect on the removal, and TN concentrations had a significant effect on the removal, removal of only 27% [3], Yuan Donghai and others that wetlands on the initial concentration of pollutants in wastewater have certain requirements, low pollution case, the constructed wetland was better; higher concentration of pollutants cases, the purification efficiency dropped [4]. Effluent decontamination effect on the wetland will have some impact, at present, domestic and international research to a single species of plants, mainly a single type of wetland, considering the different plants, different types of comparative study of wetlands was less. By changing SF and SSF constructed wetlands, inflow water TN concentrations, with 6 plant speciesin comparative experiments, comparative analysis of the 6 different plants of SF and SSF constructed wetlands treatment rate with the variation of the concentration obtained in 6 different plant SF and SSF constructed wetlands, the optimal concentration theory, theory of optimal removal rate, the actual optimal concentration, optimal removal rate and the actual TN maximum daily processing load, optimizing the hydraulic conditions of wetlands. Research on the promotion of artificial wetland technology, further development of eco-environmental rehabilitation has a certain significance
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2

Zhang, Jie, Shuqing An e Xin Leng. "Status of wetland research in China". Marine and Freshwater Research 71, n. 12 (2020): 1572. http://dx.doi.org/10.1071/mf20103.

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This study used a bibliometric approach to quantitatively evaluate the status of wetland research in China using detailed information from 31794 articles retrieved from the Science Citation Index Expanded (SCIE) database and published from 1999 to 2019. We outline the progress of wetland research in China in terms of the number of articles published, active research institutions, funding provided, research directions, dynamic changes in the focus of the research and development trends. By analysing high-frequency keywords, we conclude that there are four focus areas of wetlands research in China: (1) climate change; (2) wetland pollution; (3) wetland plants and microorganisms; and (4) the conservation and management of wetlands. By combining focus area and high-citation analysis, we show that carbon storage and organic carbon mineralisation, biological remediation, constructed wetlands for the treatment of waste water and the sustainable use of ecological services are currently the most notable research areas, with a marked increase since 2009. These topics are in line with the focus of research globally over the past 6 years and are likely to become a primary research focus in future. The results of this study provide a useful theoretical basis and directions for further research in the sustainable development of wetland resources in China.
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Kennedy, Gavin, e Tatiana Mayer. "Natural and Constructed Wetlands in Canada: An Overview". Water Quality Research Journal 37, n. 2 (1 maggio 2002): 295–325. http://dx.doi.org/10.2166/wqrj.2002.020.

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Abstract A review of freshwater wetland research in Canada was conducted to highlight the importance of these ecosystems and to identify wetland research needs. Both natural and constructed wetland systems are discussed. Natural wetlands are an important part of the Canadian landscape. They provide the habitat for a broad variety of flora and fauna and contribute significantly to the Canadian economy. It is estimated that the total value derived from consumptive and non-consumptive activities exceeds $10 billion annually. The past decades have witnessed the continued loss and degradation of wetlands in Canada. In spite of recent protection, Canadian wetlands remain threatened by anthropogenic activities. This review shows that more research on fate and transport of pollutants from urban and agricultural sources in wetland systems is needed to better protect the health and to assure the sustainability of wetlands in Canada. Furthermore, improved knowledge of hydrology and hydrogeochemistry of wetlands will assure more effective management of these ecosystems. Lastly, better understanding of the effect of climate change on wetlands will result in better protection of these important ecosystems. Constructed wetlands are man-made wetlands used to treat non-point source pollution. The wetland treatment technology capitalizes on the intrinsic water quality amelioration function of wetlands and is emerging as a cost-effective, environmentally friendly method of treating a variety of wastewaters. The use of wetland technology in Canada is, however, less common than in the U.S.A. A number of research needs has to be addressed before the wetland treatment technology can gain widespread acceptance in Canada. This includes research pertaining to cold weather performance, including more monitoring, research on design adaptation and investigation of the effects of constructed wetlands on wildlife.
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Wang, Han Xi, Jian Ling Xu, Lian Xi Sheng e Xue Jun Liu. "A Review of Research on Substrate Materials for Constructed Wetlands". Materials Science Forum 913 (febbraio 2018): 917–29. http://dx.doi.org/10.4028/www.scientific.net/msf.913.917.

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Based on the improvements in the decontamination ability and decontamination range of constructed wetlands, this study of constructed wetland substrates was carried out using literature research and comparative meta-analysis. The results show that, for static adsorption, the absorption levels of nitrogen and phosphorus in a given constructed wetland are different. As for hydraulic load, the average removal rate of total nitrogen in wastewater is less than 50%. Compared with single substrates, a combination of substrates is typically superior in terms of the removal rate of sewage pollutants. Adsorption is the key in removing pollutants in constructed wetlands, and modification of the wetland materials is an effective way to improve the decontamination ability of the substrate material. At present, there are areas of potential improvement in the research on the development of new wetland materials for the study of pollutant characteristics, as well as a dearth of modification methods for single and reclaimable wetland substrates in constructed wetlands. These issues should be taken into account in the future studies on constructed wetland materials.
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Qin, Lu Mei, Hong Hu Zeng e Yan Peng Liang. "Research Development on Constructed Wetlands". Applied Mechanics and Materials 535 (febbraio 2014): 388–93. http://dx.doi.org/10.4028/www.scientific.net/amm.535.388.

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Constructed wetland is a mode of economical and highly effective system applied in wastewater treatment with special removal mechanism function, which has drawn much attention over the world constantly. On the basis of study from abroad, this article makes the brief induction of removal mechanism, influential factors and combined technique of constructed wetlands, for the further research works were also put forward in the next future.
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6

Langergraber, G. "Simulation of subsurface flow constructed wetlands - results and further research needs". Water Science and Technology 48, n. 5 (1 settembre 2003): 157–66. http://dx.doi.org/10.2166/wst.2003.0308.

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Simulation of constructed wetlands has two main tasks: to obtain a better understanding of the processes in constructed wetlands, and to check and optimise existing design criteria. This paper shows simulation results for two indoor pilot-scale constructed wetlands for wastewater and surface water treatment respectively. The results presented and discussed are mainly focussed on the hydraulic behaviour of the constructed wetland systems. In addition results of reactive transport simulations with CW2D are shown. The multi-component reactive transport model CW2D (Constructed Wetlands 2 Dimensional) was developed to model transport and reactions of the main constituents of wastewater (organic matter, nitrogen, and phosphorus) in subsurface flow constructed wetlands. For the pilot-scale constructed wetlands a calibration of the flow model was possible and therefore the results of the reactive transport simulations with CW2D fit the measured data well. The further research needs regarding the simulation of subsurface flow constructed wetlands are discussed.
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COLES, J. M., e B. COLES. "Wetlands research". Nature 323, n. 6090 (ottobre 1986): 664. http://dx.doi.org/10.1038/323664c0.

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Qin, Yu Qian. "The Problems of Wetlands in our Country and the Researches". Advanced Materials Research 610-613 (dicembre 2012): 3242–46. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.3242.

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The characteristics and current situation of China’s wetlands are discussed, the reasons that cause environmental degradation of China’s wetlands are analyzed in this article. The emphases of research on domestic west lands are summarized from three aspects that function and benefit development of wetlands, construction of wetland reserves, restoration and reconstruction of wetlands, in addition, the development trend of future research on wetlands is prospected.
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Carberry, Brendan, Tom A. Langen e Michael R. Twiss. "Surface Water Quality Differs between Functionally Similar Restored and Natural Wetlands of the Saint Lawrence River Valley in New York". Land 10, n. 7 (27 giugno 2021): 676. http://dx.doi.org/10.3390/land10070676.

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We tested the hypothesis that upland wetland restorations provide the same quality of wetland, in terms of ecosystem services and biodiversity, as natural wetlands in the St. Lawrence River Valley. Water quality (pH, alkalinity, colored dissolved organic matter, phytoplankton community composition, chlorophyll-a, fecal coliform, total phosphorus, dissolved nitrate, turbidity, specific conductivity) in 17 natural and 45 restored wetlands was compared to determine whether wetland restoration provided similar physicochemical conditions as natural wetlands in the Saint Lawrence River Valley of northeastern New York State. Natural wetlands were more acidic, which was hypothesized to result from the avoidance of naturally acidic regions by farmers seeking to drain wetlands for crop and pasture use. Natural wetlands had significantly greater fecal coliform concentrations. Restored wetlands had significantly greater specific conductivity and related ions, and this is attributed to the creation of wetlands upon marine clay deposits. Other water quality indicators did not differ between restored and natural wetlands. These findings confirm other research at these same wetlands showing no substantial differences between restored and natural wetlands in major biotic indicators. Thus, we conclude that wetland restoration does result in wetlands that are functionally the same as the natural wetlands they were designed to replicate.
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Durai, A. Job Martin, S. Kalavathy, V. Gokula e A. Muthukrishnan. "Identification of potential wetlands in Tiruchirappalli District, Tamil Nadu, India". International Journal of Environment 3, n. 1 (28 febbraio 2014): 78–84. http://dx.doi.org/10.3126/ije.v3i1.9944.

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Wetland maps are prerequisites for wetland inventory, development, planning, management, protection, and restoration, for conservation of wetland-dependent flora, fauna and humans. It is estimated that 15.26 million hectares exists as wetlands in India according to Space Application Centre (SAC), pertaining to wetlands having more than 56 hectares area. Past research on wetland conservation in the country has shown that micro-wetlands (satellite wetlands) around a bigger wetland act as constellation of habitat mosaic for resident and migratory waterfowls. Often, the size of these micro-wetlands is much smaller than 50 hectares. Therefore, there is a great need to map such wetlands (smaller than 50 hectares). The Tiruchirappalli district, situated in the state of Tamil Nadu, India, is selected for the present investigation to identify the potential wetlands through geo-spatial technology (GIS & RS). All the wetlands within the Tiruchirappalli district have been demarcated from 1973 applying temporal remote sensing data. A total of 2399 wetlands of various size categories have been identified in the Tiruchirappalli District, Tamil Nadu, India. DOI: http://dx.doi.org/10.3126/ije.v3i1.9944 International Journal of Environment Vol.3(1) 2014: 78-84
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Tesi sul tema "Wetlands research"

1

Littlefield, Joanne. "Constructed Wetlands for Dairies: Component Aids Dairy Wastewater Treatment System". College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2002. http://hdl.handle.net/10150/622240.

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Nahlik, Amanda Marie. "Water Quality Improvement and Methane Emissions from Tropical and Temperate Wetlands". The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1250267005.

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Fink, Daniel Francis. "Effects of a pulsing hydroperiod on a created riparian river diversion wetland". Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1167401886.

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Young, Charissa L. "Pathogen reduction by created urban riparian wetlands in central Ohio during variable hydrologic conditions". The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1229811145.

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Batson, Jacqulyn A. "Denitrification and a Nitrogen Budget of Created Riparian Wetlands". The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1284968767.

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au, rkurup@murdoch edu, e Rajendra Kurup. "An experimental research on application of sub-surface flow constructed wetlands for meat processing industry effluent treatment and nutrient removal". Murdoch University, 2007. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20070717.142408.

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Meat processing industries produce large volumes of high strength wastewater. Conventional technologies used in Australia and similar countries for treatment of effluent from meat processing and similar industries, such as wineries and processed food industry, are treatment ponds with or without a mechanical treatment system. A properly designed activated sludge treatment system would be capable of biological removal of phosphorus and nitrogen in addition to BOD5. These systems, however, require substantial electrical power, skilled operational support and produce large quantities of biosolids or sludge which require further on-site treatment or off site disposal. Application of sub-surface flow constructed wetland (SSF-CW) systems could provide a sustainable solution for treatment of meat processing industry effluent and other similar high strength wastewaters. There are, however, only very limited studies on application of SSF-CW for secondary treatment of high strength wastewaters. Although there have been a number of cases where SSF-CW have been used as the secondary treatment unit for municipal wastewater, this technology has not still become a common practice for the same purpose in Australia. Most of the applications are for either polishing of secondary or tertiary treated municipal wastewater or for greywater treatment. This research was funded by National Meat Industry Advisory Council (MINTRAC). Sustainable wastewater treatment has been taken up as a very important issue by meat industry. The industry provides Ph.D research scholarships through MINTRAC to develop new technologies for wastewater treatment and nutrient removal from meat processing effluent. The main objective of the research was to develop process engineering design parameters for sub-surface flow constructed wetland (SSF-CW) with Monto vetiver (Vetiveria zizanioides recently reclassified as Chrysopogon zizanioides) as the emergent vegetation for treatment of high strength, nutrient rich wastewater. The study also investigated the phosphorus retention properties of pea gravel for use in SSF-CW system as bed media or as an external phosphorus removal system for meat processing industry effluent. In addition, chemical methods for phosphorus removal from meat processing industry effluent were also investigated. The thesis is based on experimental research. The research consisted of three types of experimental set up; a) using two laboratory experimental SSF-CW reactors (one with vetiver grass and the other reactor with no vegetation) in a greenhouse with batch feeding of artificial wastewater that simulates meat industry effluent, b) experiment with pea gravel of different particle sizes and solutions of different phosphorus (P) concentrations in a constant temperature room, c) laboratory experiment using actual meat processing industry effluent with alum and sodium aluminate for P removal. The structure of the thesis is as follows. Following the Introduction is the section of Literature Review, then sections on the experiments that follow a journal paper format, followed by a General Discussion, Conclusions and Recommendations. A list of references is provided at the end of the thesis. The literature review section has four chapters (Chapter 2 to Chapter 5). Chapter 2 describes a review of meat processing industry effluent characteristics and current treatment technologies. Chapter 3 is a critical review of current literature on COD removal using sub-surface flow constructed wetlands (SSF-CW). Chapter 4 and 5 describe a review of various processes and models on the fate of nitrogen and phosphorus in SSF-CW system respectively. Chapters 6 to 10 deal with experimental research part of the thesis. Chapters, 6, 7 and 8 share a common methodology section which is described in Chapter 6. Results of the batch experiments with the laboratory SSF-CW systems on COD removal, nitrogen removal and phosphorus retention are discussed in Chapters 6, 7 and 8 respectively. Chapter 9 explains a detailed experimental study on phosphorus adsorption dynamics of pea gravel. Chapter 10 discusses the results on experiments using sodium aluminate and aluminium sulphate for P removal from meat processing industry effluent as an alternate P removal method for such effluent. An overview of the major results of the experimental section is discussed in chapter 11, in the General Discussion section. Conclusions and Recommendations of the research are provided in Chapter 12. In this study, it was observed that Monto vetiver grass performed better during nitrification than in denitrification, where the plant did not survive. Ammonium N removal followed a first order decay in both vegetated and un-vegetated experimental SSF-CW system with average removal ranging from 40 to 60 % of the influent. Denitrification was found to be the pathway for nitrate removal. As long as the carbon source was available, the denitrification followed a first order exponential decay, with over 80% of nitrate was removed in 48 hours. Vetiver grass sustained elevated ammonium levels of approximately 200 mg/L or more, however it was under stress during denitrification and it eventually died. The experimental SSF-CW systems with pea gravel as bed media could effectively retain soluble reactive phosphorus (SRP) in the wetland cells during experiments of COD reduction and nitrification (with ammonia and high COD input). However, during denitrification study, both experimental SSF-CW cells did not show significant removal of SRP from wastewater. The vegetated cell removed nearly 50% of the input SRP, however, the un-vegetated cell did not show any trend for SRP removal, and in some cases the effluent SRP was nearly 90% of the input value. The role of Monto vetiver grass for N and P removal was found to be very minor and this study concluded that nutrient removal (N & P) by plant uptake could be neglected in the design of SSF-CW system with Monto vetiver grass. Adsorption is the major mechanism for P removal from the experimental SSF-CW systems, where pea gravel was used as bed media. The P adsorption capacity of pea gravel increased with decrease in particle size. For 16 to 18 mm, the Langmuir adsorption maximum was 99 mg/kg, whereas for very fine pea gravel powder (<150 ìm) the maximum adsorption observed experimentally was 3950 mg/kg. In a typical wetland with pea gravel as bed media for meat processing industry, the media would be capable of P retention for about 2 to 3 years of operation. Supplementary chemical removal method is needed for sustainable P removal once the adsorption maximum of wetland cell is reached. A chemical P removal system using liquid alum and NaOH for pH stabilisation is more appropriate than sodium aluminate. Application of sodium aluminate for P removal for meat processing industry effluent is found to be less effective as it would need higher dosage, longer settling period, coloured supernatant, acid addition for pH adjustment. Liquid alum application rate is recommended to be between a molar ratio of Al: P of 3 for TP value of <1 mg/L in the treated effluent. This research study concludes that horizontal flow SSF-CW system with Monto vetiver grass is suitable for COD removal and nitrification from high strength wastewater. Current design equation of horizontal flow SSF-CW system is mostly plug flow exponential decay method, but in this study, it has been concluded that retarded first order rate constant is the most appropriate design method for horizontal flow SSF-CW system for COD removal.
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Brownlow, Marcus D. "Water regime and the aquatic vegetation of Bool Lagoon, South Australia /". Title page, table of contents and summary only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phb8852.pdf.

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Kurup, Rajendra G. "An experimental research on application of sub-surface flow constructed wetlands for meat processing industry effluent treatment and nutrient removal /". Access via Murdoch University Digital Theses Project, 2007. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20070717.142408.

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Anderson, Christopher John. "The influence of hydrology and time on productivity and soil development of created and restored wetlands". Columbus, Ohio : Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1132540084.

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Flint, Abbi, e Benjamin R. Jennings. "The role of cultural heritage in visitor narratives of peatlands: analysis of online user-generated reviews from three peatland sites in England". Routledge, 2021. http://hdl.handle.net/10454/18537.

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yes
User-generated reviews of visitor attractions, on publicly available websites, such as Tripadvisor, are frequently used in tourism research but feature less often in published cultural heritage research. In this paper, we describe a qualitative analysis of the text from user-generated reviews of three peatland heritage landscapes in the United Kingdom – Ilkley Moor, Thorne and Hatfield Moors, and Shapwick Heath – to better understand the role tangible and intangible cultural heritage play in visitor perceptions and narratives of these sites. Our analysis indicates that visitors tend to emphasise natural over cultural heritage of peatland landscapes and hold plural, highly contextual and sometimes dissonant perceptions; there is no single story of peatlands. This presents both challenges and opportunities for building public appreciation of peatland cultural heritage. User-generated reviews offer, as-yet under-explored, potential data for use by heritage researchers and managers who seek to explore how visitors understand and use sites, and may also contribute to the emerging intangible heritage of heritage landscapes.
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Libri sul tema "Wetlands research"

1

Wilcox, D. A. Interdisciplinary approaches to freshwater wetlands research. S.l: s.n, 1988.

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American Forest Congress (7th 1996 Washington, D.C.). Southern region forest research report. [S.l.]: American Forest Congress, 1996.

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Stein, Otto. Constructed wetlands for the treatment of wastewater. Bozeman, Mont: Montana University System, Water Resources Center, 1996.

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4

United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Environment. The science of wetland definition and delineation: Hearing before the Subcommittee on Environment of the Committee on Science, Space, and Technology, U.S. House of Representatives, One Hundred Second Congress, first session, November 12, 1991. Washington: U.S. G.P.O., 1992.

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Wray, Heather E. A review of indicators of wetland health and function in Alberta's prairie, aspen parkland and boreal dry mixedwood regions. [Edmonton]: Alberta Environment, 2006.

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Nawrot, J. R. Mined land wetlands: Research activities of the Cooperative Wildlife Research Laboratory. S.l: s.n, 1985.

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Tellman, Barbara. Riparian/wetland research expertise directory: Arizona, Colorado, Nevada, New Mexico, and Utah. [Washington, D.C.]: U.S. G.P.O., 1995.

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Tellman, Barbara. Riparian/wetland research expertise directory: Arizona, Colorado, Nevada, New Mexico, and Utah. [Washington, D.C.?: U.S. Dept. of Agriculture, Forest Service?, 1995.

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9

Sánchez-Carrillo, Salvador, e David G. Angeler. Ecology of threatened semi-arid wetlands: Long-term research in Las Tablas de Daimiel. Dordrecht: Springer, 2010.

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Anderson, Janet M. Effects of acid precipitation on wetlands. Ottawa: Lands Directorate, Conservation and Protection, Environment Canada, 1986.

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Capitoli di libri sul tema "Wetlands research"

1

Eslamian, Saeid, Saeid Okhravi e Mark E. Grismer. "Future Constructed Wetland Research Orientations". In Constructed Wetlands, 57–61. Boca Raton : CRC Press, [2020]: CRC Press, 2019. http://dx.doi.org/10.1201/9780429242625-5.

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Best, E. P. H., J. T. A. Verhoeven e W. J. Wolff. "The ecology of The Netherlands wetlands: characteristics, threats, prospects and perspectives for ecological research". In Netherlands-Wetlands, 305–20. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-2042-5_15.

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Salgado-Bernal, Irina, Maira M. Perez-Villar, Lizandra Perez-Bou, Mario Cruz-Arias, Margie Zorrilla-Velazco e Maria E. Carballo-Valdes. "Constructed Wetlands Technology in Cuba: Research Experiences". In Artificial or Constructed Wetlands, 142–62. Boca Raton, FL : CRC Press, Taylor & Francis Group, [2018]: CRC Press, 2018. http://dx.doi.org/10.1201/9781315184265-8.

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Schöner, Angelika, Georg Büchel e Martin Sauter. "Biosorption as Main Uranium Accumulation Mechanism in Wetlands". In Advanced Materials Research, 275–78. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-452-9.275.

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Kuschk, Peter, Arndt Wiessner, Eva M. Seeger, Matthias Kästner, Uwe Kappelmeyer, Diego Paredes e Natalia I. Shtemenko. "The Status of Research on Constructed Wetlands". In Environmental and Food Safety and Security for South-East Europe and Ukraine, 155–71. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-2953-7_15.

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Nakamura, Futoshi. "Concept and Application of Green and Hybrid Infrastructure". In Ecological Research Monographs, 11–30. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-6791-6_2.

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AbstractRecently, Japan has suffered extraordinary damage from typhoons, heavy rains, and megafloods, each of which has exceeded the upper limit of control by managed infrastructure for flood mitigation. First, I present a conceptual framework of hybrid infrastructure at the watershed scale, combining (1) fundamental green infrastructure (GI), composed of forests and wetlands in the watershed; (2) additional multilevel GI, such as flood control basins; and (3) existing engineered disaster prevention infrastructure, such as dams and artificial levees. Second, I introduce the disaster risk reduction function of natural forests and wetlands and three representative traditional flood control measures: discontinuous levees, overflow embankments, and flood protection forests. This GI should be properly allocated and maintained at the watershed scale to reduce damage by megafloods. The multiple types and functions of GI may provide essential habitats for wildlife and recreational opportunities for local residents and others. Finally, I address key points for planning, implementation, and governance of GI at the watershed scale.
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Middleton, Beth, Ab Grootjans, Kai Jensen, Harry Olde Venterink e Katalin Margóczi. "Fen Management and Research Perspectives: An Overview". In Wetlands: Functioning, Biodiversity Conservation, and Restoration, 247–68. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/978-3-540-33189-6_11.

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Kim, Bojeong, Curtis J. Richardson, Mitsuhiro Murayama e Michael F. Hochella. "Nanoscale Analytical Transmission Electron Microscopy Techniques Applicable to Wetland Research and Monitoring". In Methods in Biogeochemistry of Wetlands, 857–78. Madison, WI, USA: American Society of Agronomy and Soil Science Society of America, 2015. http://dx.doi.org/10.2136/sssabookser10.c44.

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Hein, Thomas. "My research work started at the Danube wetlands". In Land schaf[f]t Wissen / Research[in]g the Region, 210–13. Vienna: Springer Vienna, 2013. http://dx.doi.org/10.1007/978-3-7091-1249-6_51.

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Dugan, Patrick J. "Expertise in Wetlands Research and Management: The Need and Some Priorities for North-South Transfer". In The Ecology and Management of Wetlands, 50–56. New York, NY: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4684-8378-9_5.

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Atti di convegni sul tema "Wetlands research"

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Al-marri, Sara, Mohamad Al-sulaiti, Frank Gobas e Alexander Cancelli. "Environmental Fate Modelling Of Contaminants In Constructed Wetlands". In Qatar Foundation Annual Research Conference Proceedings. Hamad bin Khalifa University Press (HBKU Press), 2014. http://dx.doi.org/10.5339/qfarc.2014.eepp0099.

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Dabelow, Steven, e Ning Zhang. "Evaluation of the Effectiveness of a Coastal Wave Reduction and Sediment Retention Structure Using CFD Simulations". In 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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Jiang Yu, Wen-qing Chen, Yong-hong Shui, Jian-quan Liu, Wai-tim Ho e Shu-yan Zhang. "Research on wastewater treatment through integrated constructed wetlands". In 2011 International Conference on Multimedia Technology (ICMT). IEEE, 2011. http://dx.doi.org/10.1109/icmt.2011.6002928.

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Albertson, Maurice L. "Constructed Wetlands for Wastewater Treatment: A Proposed Research Program". In Wetlands Engineering and River Restoration Conference 1998. Reston, VA: American Society of Civil Engineers, 1998. http://dx.doi.org/10.1061/40382(1998)121.

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Ouyang, Huanrong, Joshua Hantz, Tam Nguyen, Amy Harrington e Ning Zhang. "Numerical Analysis of Breakwaters Turbulence Under Coastal Wave Actions". In 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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Ivaviciute, Giedre. "The change of natural landscape in Lithuania". In Research for Rural Development 2020. Latvia University of Life Sciences and Technologies, 2020. http://dx.doi.org/10.22616/rrd.26.2020.031.

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The purpose of this article is to carry out an analysis of the natural landscape of the Republic of Lithuania in 2004–2019. During the preparation of the article, the following scientific methods were used: literature analysis, determination and evaluation of the current situation, grouping method, comparison method, graphical method, analytical and statistical analysis methods, logical analysis. The article analyzes the change of the area of natural (natural, subnatural) landscape components (natural forests, wetlands, water bodies) during the period between the years 2004 and 2019. The analysis showed that the two components of the natural landscape of the Republic of Lithuania during 2004–2019 increased: the forest area (132,849.03 ha or 6.15%) and water bodies (3,668.49 ha or 1.38%). Unfortunately, the area of wetlands has decreased by 50,990.20 ha (35.05%). During the analyzed period, the natural landscape of Lithuania increased by 85527.97 ha or 3.39%. At present, it is particularly important to care for and restore valuable landscape complexes to fulfill their ecosystem functions. One of the most important challenges is to reconcile urbanization and nature conservation so as not to reduce significant areas of the country’s natural landscape.
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Theriot, Russell F., e Robert L. Lazor. "The New U.S. Army Corps of Engineers' Ecosystem Management and Restoration Research Program: Introduction and Overview". In Wetlands Engineering and River Restoration Conference 1998. Reston, VA: American Society of Civil Engineers, 1998. http://dx.doi.org/10.1061/40382(1998)132.

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Möller, I. "Bio-physical linkages in coastal wetlands – implications for coastal protection". In 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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Wang, Dun-Qiu, Xiao-Dan Jin, Hua Zhang, Xue-Hong Zhang, Hong-Hu Zeng, Shao-Hong You, Wen-Yu Zhao, Ze-Long Xu e Yan-Hua Wu. "Research Progress on Phosphorus Removal in Substrates of Constructed Wetlands". In 2009 3rd International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2009. http://dx.doi.org/10.1109/icbbe.2009.5163343.

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Longfei Tan, Yan Chen, Ling Tong e Mingquan Jia. "Research of methane emissions of the wetlands with backscattering properties". In IGARSS 2014 - 2014 IEEE International Geoscience and Remote Sensing Symposium. IEEE, 2014. http://dx.doi.org/10.1109/igarss.2014.6947398.

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Rapporti di organizzazioni sul tema "Wetlands research"

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Streever, Bill. Wetlands Research Bulletin: Characterization and Restoration of Wetlands Research Program, Mar 1999. Fort Belvoir, VA: Defense Technical Information Center, marzo 1999. http://dx.doi.org/10.21236/ada363522.

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Clairain, Jr, Sanders Ellis J., Dana R. Sr., Hanley K. Smith e Charles V. Klimas. Wetlands Research Program. Wetlands Functions and Values Study Plan. Fort Belvoir, VA: Defense Technical Information Center, agosto 1985. http://dx.doi.org/10.21236/ada159630.

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Abraham, David D., e Brad R. Hall. The Wetlands Research Program Bulletin. Volume 4, Number 2, June 1994. Fort Belvoir, VA: Defense Technical Information Center, giugno 1994. http://dx.doi.org/10.21236/ada283262.

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Krafft, Douglas, Rachel Bain, Jack Cadigan e Richard Styles. A review of tidal embayment shoaling mechanisms in the context of future wetland placement. Engineer Research and Development Center (U.S.), dicembre 2022. http://dx.doi.org/10.21079/11681/46143.

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Wetland construction in tidally influenced embayments is a strategy for beneficial use of sediment dredged from nearby navigation channels. These projects have the potential to alter basin morphology, tidal hydrodynamics, and shoaling trends. This special report provides a broad review of the literature related to engineering-induced changes in tidal range, salinity, tidal prism, tidal asymmetry, and other known causes of shoaling. Each potential shoaling mechanism is then evaluated in the context of wetland placement to provide a foundation for future beneficial use research. Based on a compilation of worldwide examples, wetland placement may reduce tidal amplitude and enhance ebb current dominance, thus reducing shoaling rates in the channels. However, constructed wetlands could also reduce the embayment’s tidal prism and cause accelerated shoaling relative to the pre-engineered rate. Because constructed wetlands are often created in conjunction with navigation channel dredging, the system’s morphologic response to wetland construction is likely to be superimposed upon its response to channel deepening, and the net effect may vary depending on a variety of system-specific parameters. Planning for future wetland placements should include an evaluation of local hydrodynamic behavior considering these factors to predict site-specific response.
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Amatya, Devendra M., Carl C. Trettin, R. Wayne Skaggs, Marianne K. Burke, T. J. Callahan, Ge Sun, J. E. Nettles, J. E. Parsons e M. Miwa. Five hydrologic studies conducted by or in cooperation with the Center for Forested Wetlands Research, U.S. Department of Agriculture Forest Service. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station, 2005. http://dx.doi.org/10.2737/srs-rp-40.

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Amatya, Devendra M., Carl C. Trettin, R. Wayne Skaggs, Marianne K. Burke, T. J. Callahan, Ge Sun, J. E. Nettles, J. E. Parsons e M. Miwa. Five hydrologic studies conducted by or in cooperation with the Center for Forested Wetlands Research, U.S. Department of Agriculture Forest Service. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station, 2005. http://dx.doi.org/10.2737/srs-rp-40.

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Nelson, E. A., R. K. Kolka e C. C. Trettin. United States Department of Agriculture Forest Service 1996 annual report wetlands research related to the Pen Branch restoration effort on the Savannah River site. Office of Scientific and Technical Information (OSTI), gennaio 1997. http://dx.doi.org/10.2172/568926.

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Thorne, Sarah, David Kovacs, Joseph Gailani e 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.), agosto 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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Piercy, Candice, Safra Altman, Todd Swannack, Carra Carrillo, Emily Russ e John Winkelman. Expert elicitation workshop for planning wetland and reef natural and nature-based features (NNBF) futures. Engineer Research and Development Center (U.S.), agosto 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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Lampman, Janet L. Bibliography of Remote Sensing Techniques Used in Wetland Research. Fort Belvoir, VA: Defense Technical Information Center, gennaio 1993. http://dx.doi.org/10.21236/ada269109.

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