Feril Hariati, Harman Ajiwibowo, M. Kusuma, M. Adityawan
Segara Anakan is the largest mangrove-fringed lagoon on the south coast of Java Island. It is a productive coastal system that provides environmental services for the community in the vicinity of the lagoon, such as fisheries production and tourism. Right now, the lagoon is facing surface water shrinking due to the intensive sedimentation process. The fishing ground area becomes limited; thus, the fisherman should sail further to the sea zone to catch fish. To quantify the lagoon’s surface water decreasing rate, we applied a spatial analysis method. Historical cartographic maps and satellite images of Segara Anakan were digitised using ArcMap. We used a reclassification tool to classify land and water for the satellite image before digitising it. The result showed that the lagoon’s surface water area decreased from 65 km2 in 1942 to 8.5 km2 in 2017. Since the lagoon received freshwater supply from Citanduy River, we applied Universal Soil Loss Equation (USLE) to calculate sediment supply from the watershed. The result showed that from 2005 to 2016, the average sediment supply reached 3 mm/year or equal to 22 million tons/year. The highest sediment supply rate occurred in 2010 at 5.14 mm/year or similar to 43 million tons/year. Linking between integrated coastal zone management with watershed management should be implemented to reduce the rate of sedimentation.
Segara Anakan是爪哇岛南海岸最大的红树林环礁湖。这是一个生产性的沿海系统，为泻湖附近的社区提供环境服务，如渔业生产和旅游业。现在，由于强烈的沉积过程，泻湖正面临着地表水的萎缩。渔场面积变得有限;因此，渔民应该航行到更远的海域去捕鱼。为了量化泻湖的地表水减少率，我们采用了空间分析方法。使用ArcMap对塞加拉阿纳坎的历史地图和卫星图像进行了数字化。在数字化之前，我们使用了一种重新分类工具对卫星图像进行土地和水的分类。结果表明，泻湖的表水面积从1942年的65 km2减少到2017年的8.5 km2。由于该泻湖的淡水供应来自Citanduy河，我们应用通用土壤流失方程(USLE)来计算该流域的泥沙供应。结果表明，2005 - 2016年，平均输沙量达到3 mm/年，相当于2200万吨/年。最高的沉积物供给速率发生在2010年，为5.14 mm/年，相当于4300万吨/年。应将海岸带综合管理与流域管理相结合，以降低泥沙淤积率。
{"title":"Quantifying surface water decreasing in Segara Anakan Lagoon","authors":"Feril Hariati, Harman Ajiwibowo, M. Kusuma, M. Adityawan","doi":"10.5894/rgci-n462","DOIUrl":"https://doi.org/10.5894/rgci-n462","url":null,"abstract":"Segara Anakan is the largest mangrove-fringed lagoon on the south coast of Java Island. It is a productive coastal system that provides environmental services for the community in the vicinity of the lagoon, such as fisheries production and tourism. Right now, the lagoon is facing surface water shrinking due to the intensive sedimentation process. The fishing ground area becomes limited; thus, the fisherman should sail further to the sea zone to catch fish. To quantify the lagoon’s surface water decreasing rate, we applied a spatial analysis method. Historical cartographic maps and satellite images of Segara Anakan were digitised using ArcMap. We used a reclassification tool to classify land and water for the satellite image before digitising it. The result showed that the lagoon’s surface water area decreased from 65 km2 in 1942 to 8.5 km2 in 2017. Since the lagoon received freshwater supply from Citanduy River, we applied Universal Soil Loss Equation (USLE) to calculate sediment supply from the watershed. The result showed that from 2005 to 2016, the average sediment supply reached 3 mm/year or equal to 22 million tons/year. The highest sediment supply rate occurred in 2010 at 5.14 mm/year or similar to 43 million tons/year. Linking between integrated coastal zone management with watershed management should be implemented to reduce the rate of sedimentation.","PeriodicalId":37892,"journal":{"name":"Journal of Integrated Coastal Zone Management","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71208776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A gestão é uma atividade cada vez mais demandada no setor portuário, sendo norteada pelas informações providas pelas medidas (indicadores) dos Sistemas de Avaliação de Desempenho (SADs). Nesse contexto, esta pesquisa tem por objetivo averiguar os estudos que fizeram uso de Sistemas de Avaliação de Desempenho e as características de suas medidas no setor portuário. Para tanto, foi feita uma análise bibliométrica com base em 33 artigos publicados na língua inglesa e selecionados nas bases de dados Scopus e Web of Science por meio do ProKnow-C. Constatou-se que (i) o tema vem merecendo atenção de pesquisadores, a partir de 2004, com foco na eficiência portuária que encontra alinhamento com os métodos Data Envelopment Analysis (DEA) e Stochastic Frontier Analysis (SFA) mais utilizados nos estudos; (ii) 50% dos estudos de Avaliação de Desempenho Portuário ocorreram em portos asiáticos, podendo ser justificados pela significativa participação desses portos no comércio exterior e pela insuficiência de ferrovias e rodovias para a movimentação de cargas nesse continente; (iii) 67% dos estudos fazem uso de instrumentos que agregam medidas/indicadores, possibilitando a compreensão global do desempenho, entretanto utilizam modelos de avaliação genéricos sem a participação das partes interessadas em sua concepção o que confirmou a inexistência de alinhamento dos indicadores usados com a estratégia organizacional podendo, assim, reduzir a utilidade dos modelos por alguns dos stakeholders considerarem o diagnóstico resultante pouco útil para gestão do contexto; e (iv) apenas 12% dos estudos fazem uso de instrumentos de avaliação de desempenho com o objetivo de subsidiar a atividade de gestão portuária. Como palavra final, os pesquisadores argumentam que o uso de modelos de avaliação personalizados, com base na participação de gestor(es), apresenta-se como um diferencial para a gestão portuária capaz de proporcionar sustentabilidade ao desempenho e à organização portuária.
管理是港口部门日益需要的一项活动，以绩效评估系统(SADs)的措施(指标)提供的信息为指导。在此背景下，本研究旨在确定在港口部门使用绩效评估系统及其措施特点的研究。为此，我们通过ProKnow-C从Scopus和Web of Science数据库中选取33篇英文文章进行文献计量分析。研究发现(i)自2004年以来，该主题一直受到研究者的关注，重点关注港口效率，这与研究中最常用的数据包络分析(DEA)和随机边界分析(SFA)方法一致;(ii) 50%的港口绩效评估研究发生在亚洲港口，这可能是合理的，因为这些港口在对外贸易中的重要参与，以及该大陆缺乏铁路和公路运输货物;(iii) 67%的研究使用的工具包括措施/指标,让他们理解的整体性能,同时使用通用的评估模型没有利益相关者参与的设计证实缺乏一致性的指标与公司战略和使用模式的一些利益相关者的作用,减少由此产生的过程诊断一点有用的上下文管理;(iv)只有12%的研究使用绩效评估工具来支持港口管理活动。最后，研究人员认为，基于管理者参与的个性化评估模型的使用是港口管理的一个差异，能够为绩效和港口组织提供可持续性。
{"title":"Sistemas de Avaliação e Medidas de Desempenho no Setor Portuário: uma Análise Bibliométrica","authors":"D. Pedersini, K. Rodrigues, S. Petri, S. Ensslin","doi":"10.5894/rgci-n491","DOIUrl":"https://doi.org/10.5894/rgci-n491","url":null,"abstract":"A gestão é uma atividade cada vez mais demandada no setor portuário, sendo norteada pelas informações providas pelas medidas (indicadores) dos Sistemas de Avaliação de Desempenho (SADs). Nesse contexto, esta pesquisa tem por objetivo averiguar os estudos que fizeram uso de Sistemas de Avaliação de Desempenho e as características de suas medidas no setor portuário. Para tanto, foi feita uma análise bibliométrica com base em 33 artigos publicados na língua inglesa e selecionados nas bases de dados Scopus e Web of Science por meio do ProKnow-C. Constatou-se que (i) o tema vem merecendo atenção de pesquisadores, a partir de 2004, com foco na eficiência portuária que encontra alinhamento com os métodos Data Envelopment Analysis (DEA) e Stochastic Frontier Analysis (SFA) mais utilizados nos estudos; (ii) 50% dos estudos de Avaliação de Desempenho Portuário ocorreram em portos asiáticos, podendo ser justificados pela significativa participação desses portos no comércio exterior e pela insuficiência de ferrovias e rodovias para a movimentação de cargas nesse continente; (iii) 67% dos estudos fazem uso de instrumentos que agregam medidas/indicadores, possibilitando a compreensão global do desempenho, entretanto utilizam modelos de avaliação genéricos sem a participação das partes interessadas em sua concepção o que confirmou a inexistência de alinhamento dos indicadores usados com a estratégia organizacional podendo, assim, reduzir a utilidade dos modelos por alguns dos stakeholders considerarem o diagnóstico resultante pouco útil para gestão do contexto; e (iv) apenas 12% dos estudos fazem uso de instrumentos de avaliação de desempenho com o objetivo de subsidiar a atividade de gestão portuária. Como palavra final, os pesquisadores argumentam que o uso de modelos de avaliação personalizados, com base na participação de gestor(es), apresenta-se como um diferencial para a gestão portuária capaz de proporcionar sustentabilidade ao desempenho e à organização portuária.","PeriodicalId":37892,"journal":{"name":"Journal of Integrated Coastal Zone Management","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71209024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Gaya, T. Alves, Luiz Córdova Júnior, Marcos Leandro dos Santos
A dinâmica sedimentar da orla da praia de Navegantes, Santa Catarina, Brasil, foi estudada através do sensoriamento remoto e do uso de imagens satelitais pretéritas nos dois extremos do arco praial, entre os anos de 2004 e 2018. Sobrevoos com VANT em campanhas amostrais oportunistas no ano de 2019 foram realizadas após eventos de ressaca para avaliar os efeitos dos eventos meteorológicos extremos na dinâmica sedimentar em curta escala temporal. Foram obtidas um total de 32 imagens, 16 para cada área. Com o uso das imagens foi possível constatar a redução da faixa de restinga da área Norte (Praia do Gravatá) a partir de 2016, enquanto na área Sul (Praia do Pontal) foi observado incremento a partir de 2012 após início do projeto de recuperação de dunas embrionárias. A praia do Gravatá segue enfrentando problemas graves de erosão em virtude da ocupação irregular da faixa de restinga, enquanto a praia do Pontal segue aumentando, sendo fixado um grande volume de sedimentos, o que proporciona condições para o maior desenvolvimento da vegetação nativa fixadora das dunas.
{"title":"Dinâmica da orla da Praia de Navegantes (Santa Catarina, Brasil) através do sensoriamento remoto","authors":"J. Gaya, T. Alves, Luiz Córdova Júnior, Marcos Leandro dos Santos","doi":"10.5894/rgci-n456","DOIUrl":"https://doi.org/10.5894/rgci-n456","url":null,"abstract":"A dinâmica sedimentar da orla da praia de Navegantes, Santa Catarina, Brasil, foi estudada através do sensoriamento remoto e do uso de imagens satelitais pretéritas nos dois extremos do arco praial, entre os anos de 2004 e 2018. Sobrevoos com VANT em campanhas amostrais oportunistas no ano de 2019 foram realizadas após eventos de ressaca para avaliar os efeitos dos eventos meteorológicos extremos na dinâmica sedimentar em curta escala temporal. Foram obtidas um total de 32 imagens, 16 para cada área. Com o uso das imagens foi possível constatar a redução da faixa de restinga da área Norte (Praia do Gravatá) a partir de 2016, enquanto na área Sul (Praia do Pontal) foi observado incremento a partir de 2012 após início do projeto de recuperação de dunas embrionárias. A praia do Gravatá segue enfrentando problemas graves de erosão em virtude da ocupação irregular da faixa de restinga, enquanto a praia do Pontal segue aumentando, sendo fixado um grande volume de sedimentos, o que proporciona condições para o maior desenvolvimento da vegetação nativa fixadora das dunas.","PeriodicalId":37892,"journal":{"name":"Journal of Integrated Coastal Zone Management","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71208733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nowadays, the discharge of sediments from dredging works into the sea is one of the most critical problems affecting coastal management. Therefore, the characterization, assessment and handling of the materials to be dredged is of utmost importance. Since its creation, the Port of Mar del Plata, Buenos Aires, Argentina, has presented a structural difficulty that affects its operation: the interruption of the strong littoral drift by its breakwaters generates an important sand sedimentation, blocking the access channel. This hampers the entry and maneuverability of large ships, while promoting sediment imbalances on a regional scale, causing coastal erosion on many beaches. At present, the administrative authorities of the port are proposing a new dredging work in order to restore adequate navigation depths. On this basis, the aim of this work was to assess the current sediment characteristics of the Port of Mar del Plata and compare it with previous results from 1996. Grain size, water content and organic matter were monitored at 12 stations. The results indicate that the external sector receives a larger share of sand than in 1996; silts and clays are preferentially deposited at the inner docks; organic matter, with increases compared to the previous study, accumulates in the inner docks with lower water renewal and higher contributions of waste-water. Based on these results, this work proposes beach nourishment as a management alternative for dredged sediments. Several urban beaches of Mar del Plata subject to regional-scale erosive processes could be the target sites. It is expected that this study will be used as a baseline for the improvement of the environmental quality of the port system as well as for pre- and post-dredging studies within the framework of an integrated coastal zone management.
{"title":"Environmental assessment of pre-dredging sediments and proposals for their subsequent management in the port of Mar del Plata, Buenos Aires, Argentina","authors":"G. V. Cuello, P. Garzo, R. Elías, F. Isla","doi":"10.5894/rgci-n519","DOIUrl":"https://doi.org/10.5894/rgci-n519","url":null,"abstract":"Nowadays, the discharge of sediments from dredging works into the sea is one of the most critical problems affecting coastal management. Therefore, the characterization, assessment and handling of the materials to be dredged is of utmost importance. Since its creation, the Port of Mar del Plata, Buenos Aires, Argentina, has presented a structural difficulty that affects its operation: the interruption of the strong littoral drift by its breakwaters generates an important sand sedimentation, blocking the access channel. This hampers the entry and maneuverability of large ships, while promoting sediment imbalances on a regional scale, causing coastal erosion on many beaches. At present, the administrative authorities of the port are proposing a new dredging work in order to restore adequate navigation depths. On this basis, the aim of this work was to assess the current sediment characteristics of the Port of Mar del Plata and compare it with previous results from 1996. Grain size, water content and organic matter were monitored at 12 stations. The results indicate that the external sector receives a larger share of sand than in 1996; silts and clays are preferentially deposited at the inner docks; organic matter, with increases compared to the previous study, accumulates in the inner docks with lower water renewal and higher contributions of waste-water. Based on these results, this work proposes beach nourishment as a management alternative for dredged sediments. Several urban beaches of Mar del Plata subject to regional-scale erosive processes could be the target sites. It is expected that this study will be used as a baseline for the improvement of the environmental quality of the port system as well as for pre- and post-dredging studies within the framework of an integrated coastal zone management.","PeriodicalId":37892,"journal":{"name":"Journal of Integrated Coastal Zone Management","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71209078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F. Taveira-Pinto, P. Rosa-Santos, T. Fazeres-Ferradosa, A. M. Bento, A. R. Carrasco
{"title":"Dinâmica sedimentar, erosão costeira e gestão portuária","authors":"F. Taveira-Pinto, P. Rosa-Santos, T. Fazeres-Ferradosa, A. M. Bento, A. R. Carrasco","doi":"10.5894/rgci-n562","DOIUrl":"https://doi.org/10.5894/rgci-n562","url":null,"abstract":"","PeriodicalId":37892,"journal":{"name":"Journal of Integrated Coastal Zone Management","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71209143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. M. Aguiar, J. A. Baptista Neto, Estefan Monteiro da Fonseca
Dissolved nutrients, phytoplankton biomass and other ancillary variables, were obtained at two sub-embayments at the entrance of Guanabara Bay (Rio de Janeiro, Brazil) and a composite trophic status index (TRIX) was used to assess the water quality of the study area. The role of bottom sediments in nutrient dynamics was also investigated through the evaluation nutrients, phytoplankton biomass and other sedimentary variables, since this compartment acts as a geological record of anthropogenic input. Jurujuba Sound, at the east margin, and Flamengo-Botafogo Sounds, at the western margin, were sampled during neap and spring tides in the dry season. Signs of eutrophication were detected through the extreme variations of dissolved oxygen concentrations at both margins, being more accentuated at Jurujuba Sound (2.20-14.07 mg.l-1). Dissolved inorganic nitrogen was elevated at both margins and mostly composed of ammonium, surpassing 87% at Flamengo Botafogo Sounds, which suggests a continued input of raw sewage at the western margin of the bay. TRIX revealed poor water quality for most stations at the study area, varying from 4.53 to 7.29 at Jurujuba Sound and from 5.67 to 7.87 at Flamengo-Botafogo Sounds. The increase of TRIX from neap to spring tide was registered at both margins, revealing decrease of water quality. The differences in grain size between both margins played a key role in nutrient dynamics, with predominance of fine sediments at Jurujuba Sound and coarser particles at the opposite margin. Accumulation of high concentrations of TOC (0.87-6.57%) and inorganic phosphorus (154.34-1516.82 µg.g-1) were favored by the predominance of fine sediments at Jurujuba Sound. The assessment of eutrophication in water column and bottom sediments revealed the maintenance of this process at the entrance of Guanabara Bay sustained by the recurrent anthropogenic input, what demands urgent action from public policies to mitigate this situation.
{"title":"Assessment of eutrophication through ecological indicators at the entrance of a tropical urbanized estuary","authors":"V. M. Aguiar, J. A. Baptista Neto, Estefan Monteiro da Fonseca","doi":"10.5894/rgci-n379","DOIUrl":"https://doi.org/10.5894/rgci-n379","url":null,"abstract":"Dissolved nutrients, phytoplankton biomass and other ancillary variables, were obtained at two sub-embayments at the entrance of Guanabara Bay (Rio de Janeiro, Brazil) and a composite trophic status index (TRIX) was used to assess the water quality of the study area. The role of bottom sediments in nutrient dynamics was also investigated through the evaluation nutrients, phytoplankton biomass and other sedimentary variables, since this compartment acts as a geological record of anthropogenic input. Jurujuba Sound, at the east margin, and Flamengo-Botafogo Sounds, at the western margin, were sampled during neap and spring tides in the dry season. Signs of eutrophication were detected through the extreme variations of dissolved oxygen concentrations at both margins, being more accentuated at Jurujuba Sound (2.20-14.07 mg.l-1). Dissolved inorganic nitrogen was elevated at both margins and mostly composed of ammonium, surpassing 87% at Flamengo Botafogo Sounds, which suggests a continued input of raw sewage at the western margin of the bay. TRIX revealed poor water quality for most stations at the study area, varying from 4.53 to 7.29 at Jurujuba Sound and from 5.67 to 7.87 at Flamengo-Botafogo Sounds. The increase of TRIX from neap to spring tide was registered at both margins, revealing decrease of water quality. The differences in grain size between both margins played a key role in nutrient dynamics, with predominance of fine sediments at Jurujuba Sound and coarser particles at the opposite margin. Accumulation of high concentrations of TOC (0.87-6.57%) and inorganic phosphorus (154.34-1516.82 µg.g-1) were favored by the predominance of fine sediments at Jurujuba Sound. The assessment of eutrophication in water column and bottom sediments revealed the maintenance of this process at the entrance of Guanabara Bay sustained by the recurrent anthropogenic input, what demands urgent action from public policies to mitigate this situation.","PeriodicalId":37892,"journal":{"name":"Journal of Integrated Coastal Zone Management","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49370256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tourism in the southern sandy temperate barriers has historically been one of the drivers of coastal development in Buenos Aires, Argentina. This process, which has been accompanied by dune fixation and a subsequent urbanization, began in the 1930s and occurred in the absence of coastal management policies causing several environmental problems. This work aims to analyze the historical development of two dune afforestation projects with the objective of characterizing their main environmental issues. These projects, which started almost simultaneously, are currently at completely different levels of development. For this purpose, a literature and relevant legislation review was carried out, allowing us to characterize them and generate comparisons. At the same time, it is intended to propose new strategies for dune fixation. One of the peculiarities of these afforestation projects is that two brothers carried them out: Carlos and Ernesto Gesell. Carlos initiated an afforestation that led to the sprawl of Villa Gesell. This city reached historical records of urban growth and it is actually one of the most popular bathing resorts of Argentina. Ernesto founded Dunamar on a more restricted dune field and it is currently at a significantly lower stage of development than Villa Gesell. Coastal erosion, surface runoff increase, decrease of foredune areas and replacement of native dune vegetation are some of the reported problems. Currently, there are projects for the expansion of the urban area of these villages under different strategies for dune stabilization. Although their effects have been extensively documented, they propose fixations with fast-growing exotic species. This work proposes the revegetation by means of native species corresponding to the original landscape of the dunes of about a century ago. To this end, certain aspects must be taken into account within the framework of integrated coastal management.
{"title":"Environmental evolution of coastal afforestations: management strategies for dune fixation in the sandy barriers of Buenos Aires, Argentina","authors":"F. Isla, P. Garzo, Leonardo Sánchez-Caro","doi":"10.5894/rgci-n516","DOIUrl":"https://doi.org/10.5894/rgci-n516","url":null,"abstract":"Tourism in the southern sandy temperate barriers has historically been one of the drivers of coastal development in Buenos Aires, Argentina. This process, which has been accompanied by dune fixation and a subsequent urbanization, began in the 1930s and occurred in the absence of coastal management policies causing several environmental problems. This work aims to analyze the historical development of two dune afforestation projects with the objective of characterizing their main environmental issues. These projects, which started almost simultaneously, are currently at completely different levels of development. For this purpose, a literature and relevant legislation review was carried out, allowing us to characterize them and generate comparisons. At the same time, it is intended to propose new strategies for dune fixation. One of the peculiarities of these afforestation projects is that two brothers carried them out: Carlos and Ernesto Gesell. Carlos initiated an afforestation that led to the sprawl of Villa Gesell. This city reached historical records of urban growth and it is actually one of the most popular bathing resorts of Argentina. Ernesto founded Dunamar on a more restricted dune field and it is currently at a significantly lower stage of development than Villa Gesell. Coastal erosion, surface runoff increase, decrease of foredune areas and replacement of native dune vegetation are some of the reported problems. Currently, there are projects for the expansion of the urban area of these villages under different strategies for dune stabilization. Although their effects have been extensively documented, they propose fixations with fast-growing exotic species. This work proposes the revegetation by means of native species corresponding to the original landscape of the dunes of about a century ago. To this end, certain aspects must be taken into account within the framework of integrated coastal management.","PeriodicalId":37892,"journal":{"name":"Journal of Integrated Coastal Zone Management","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47063881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Clara Cabral Almeida, W. Cavalcante, Camila Dourado Alves Brito, Lucas Nogueira Guerra Silva, M. Bochow, S. Santaella
Plastic pellets are small granulated microplastics (diameter ranging from 1-5 mm), which are considered as emerging pollutant in aquatic environment. Currently, the literature provides a poor database for classification and standardization of plastic pellets, impairing the comparison of environmental impacts assessed by several studies. Thus, in this work, a classification related to pellet characteristics was proposed in order to establish a standard of identification. Four sampling surveys were carried out in the Pecém-CE port area in the year of 2017 (northeastern coast of Brazil). The pellets were characterized according to its size, shape, transparency, and color. From the characterization of the 1,411 pellets collected, granules with different morphologies were observed. Most classes of pellets had light colors (white 37%, yellow 22% and amber 12%). The classification of the granules resulted in a catalog with 155 classes, divided into four blocks. The standardization of the characteristics of the pellets in classes, provided a documentation of the types of granules produced and found near the port area, making it possible to quantify and characterize the granules manually and with the naked eye. This type of classification can be used anywhere in the world as a tool to assist research on the presence of pellets in the marine environment and the impacts caused by them.
{"title":"Establishing a standard-basis for the characterization of marine microp lastic-pellets","authors":"Clara Cabral Almeida, W. Cavalcante, Camila Dourado Alves Brito, Lucas Nogueira Guerra Silva, M. Bochow, S. Santaella","doi":"10.5894/rgci-n436","DOIUrl":"https://doi.org/10.5894/rgci-n436","url":null,"abstract":"Plastic pellets are small granulated microplastics (diameter ranging from 1-5 mm), which are considered as emerging pollutant in aquatic environment. Currently, the literature provides a poor database for classification and standardization of plastic pellets, impairing the comparison of environmental impacts assessed by several studies. Thus, in this work, a classification related to pellet characteristics was proposed in order to establish a standard of identification. Four sampling surveys were carried out in the Pecém-CE port area in the year of 2017 (northeastern coast of Brazil). The pellets were characterized according to its size, shape, transparency, and color. From the characterization of the 1,411 pellets collected, granules with different morphologies were observed. Most classes of pellets had light colors (white 37%, yellow 22% and amber 12%). The classification of the granules resulted in a catalog with 155 classes, divided into four blocks. The standardization of the characteristics of the pellets in classes, provided a documentation of the types of granules produced and found near the port area, making it possible to quantify and characterize the granules manually and with the naked eye. This type of classification can be used anywhere in the world as a tool to assist research on the presence of pellets in the marine environment and the impacts caused by them.","PeriodicalId":37892,"journal":{"name":"Journal of Integrated Coastal Zone Management","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71208622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F. Taveira-Pinto, P. Rosa-Santos, T. Fazeres-Ferradosa, A. R. Carrasco
{"title":"Coastal erosion and pollution in developed coasts","authors":"F. Taveira-Pinto, P. Rosa-Santos, T. Fazeres-Ferradosa, A. R. Carrasco","doi":"10.5894/rgci-n551","DOIUrl":"https://doi.org/10.5894/rgci-n551","url":null,"abstract":"","PeriodicalId":37892,"journal":{"name":"Journal of Integrated Coastal Zone Management","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49034509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F. Taveira-Pinto, Renato Henriques, P. Rosa-Santos, T. Fazeres-Ferradosa, L. Neves, F. T. Pinto, Maria Francisca Sarmento
Coastal zone management plans need to consider scenarios of coastline evolution and associated uncertainties. In this paper, the main causes of shoreline retreat and coastal erosion (natural and anthropogenic) in the north coast of Portugal are discussed. The importance of increasing knowledge on coastal dynamics to improve long-term predictions of coastline changes is highlighted since it is essential to establish proper management tools. It is also shown that the Portuguese coastal ecosystems are not resilient enough to extreme events and that the Portuguese coastal zone, like very many others worldwide, and will be severely affected by the effects of climate change. It is concluded that extreme events need to be properly characterized and their impacts assessed since they have important implications in terms of uses of either the coastal zone or the coastal waters. Without that analysis, coastal management plans will be lacking technical and scientific information and data that could help decision-makers define the best strategies to control erosion levels and the impact of extreme events related to climate change effects. Finally, a detailed assessment of the coastline evolution was performed for the new Caminha-Espinho coastal management program, for the time horizons 2050 and 2100, based on historical data. The methodology used for the evaluation of the rates of shoreline change, hazard mapping and definition of set-back lines is presented. Selected examples are given to demonstrate the potential of this methodology in supporting the development of coastal zone management plans, but also to highlight the limitations and uncertainties linked to the complexity of the phenomena under analysis.
{"title":"Hazard mapping based on observed coastal erosion rates and definition of set-back lines to support coastal management plans in the north coast of Portugal","authors":"F. Taveira-Pinto, Renato Henriques, P. Rosa-Santos, T. Fazeres-Ferradosa, L. Neves, F. T. Pinto, Maria Francisca Sarmento","doi":"10.5894/rgci-n546","DOIUrl":"https://doi.org/10.5894/rgci-n546","url":null,"abstract":"Coastal zone management plans need to consider scenarios of coastline evolution and associated uncertainties. In this paper, the main causes of shoreline retreat and coastal erosion (natural and anthropogenic) in the north coast of Portugal are discussed. The importance of increasing knowledge on coastal dynamics to improve long-term predictions of coastline changes is highlighted since it is essential to establish proper management tools. It is also shown that the Portuguese coastal ecosystems are not resilient enough to extreme events and that the Portuguese coastal zone, like very many others worldwide, and will be severely affected by the effects of climate change. It is concluded that extreme events need to be properly characterized and their impacts assessed since they have important implications in terms of uses of either the coastal zone or the coastal waters. Without that analysis, coastal management plans will be lacking technical and scientific information and data that could help decision-makers define the best strategies to control erosion levels and the impact of extreme events related to climate change effects. Finally, a detailed assessment of the coastline evolution was performed for the new Caminha-Espinho coastal management program, for the time horizons 2050 and 2100, based on historical data. The methodology used for the evaluation of the rates of shoreline change, hazard mapping and definition of set-back lines is presented. Selected examples are given to demonstrate the potential of this methodology in supporting the development of coastal zone management plans, but also to highlight the limitations and uncertainties linked to the complexity of the phenomena under analysis.","PeriodicalId":37892,"journal":{"name":"Journal of Integrated Coastal Zone Management","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48477995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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