Bibliographies thématiques / Geoenvironmental risk

Littérature scientifique sur le sujet « Geoenvironmental risk »

Auteur : Grafiati

Publié le 10 mars 2023

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Articles de revues sur le sujet "Geoenvironmental risk"

Kamon, Masashi. « Remediation of Contaminated Land ». Journal of Disaster Research 2, n^o 3 (1 juin 2007) : 173–89. http://dx.doi.org/10.20965/jdr.2007.p0173.

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Growing awareness of geoenvironmental hazards has made clear the need to develop better technical knowledge of environmental issues. We are thus studying how to remediate soil and groundwater contaminated by heavy metals and organic chemical substances in natural and man-made disasters. Remediation technology includes containment and risk assessment of contaminated land, with permeable reactive barriers (PRBs) and monitored natural attenuation (MNA) presented as the passive and cost-effective techniques. A case study to assess the effectiveness of a containment facility as a remedial technique in reducing human health risks was introduced. Numerical analyzed results confirm that this significantly reduces potential human health risks from land contaminated by polychlorinated biphenyls (PCB) and dioxin. Risk assessment based on in situ monitored data indicated that no significant health risks were induced. The important projected role of the geoenvironment is developing a sustainable contamination-free society.

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Sivakumar Babu, G. L. « Special issue on risk assessment in geotechnical and geoenvironmental practice ». Georisk : Assessment and Management of Risk for Engineered Systems and Geohazards 4, n^o 3 (septembre 2010) : 109. http://dx.doi.org/10.1080/17499518.2010.516485.

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Mineev, Serhii P., Serhii А. Kurnosov, Serhii Yu Makeiev et Leonid А. Novikov. « Geoenvironmental aspects of mine methane emissions ». Journal of Geology, Geography and Geoecology 31, n^o 3 (25 septembre 2022) : 521–28. http://dx.doi.org/10.15421/112248.

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The purpose of the work is to reveal the regularities of the influence of the gaseous phase on the process of filtering carbonated liquid and to characterize the physi-cochemical processes during the implementation of the method of reducing mine methane emissions. The development of minerals can be accompanied by the release of a large amount of methane into the mined-out space. This leads to atmospheric air pollution and consequently to ecological disturbances. This causes methane emissions to the mined-out space and to the surface of the earth cause by the filtration processes of gases and liquids in the rocks. The intensity of fluid filtration through crack and pore systems depends on the content and properties of the fluids and the reservoir properties of the rocks. It is known that methane release to the atmosphere can be observed after mines have been mothballed. This is a problem for many countries around the world where coal and oil and gas fields are being exploited. Investment in methane production and utilization projects is therefore important. Research on fluids filtration processes allow for the development of effective methane recovery methods, and ways to reduce methane emission speed. The result is the reduced air pollution and an improved environmental situation. The paper presents the filtration properties of rocks with different structures and textures. Filtration of carbonated liquid (water-methane) in fractures and pores is considered. It found that an increase in methane concentration in the carbonated liquid leads to a decrease in the phase permeability coefficient for water and an increase for methane. This character of change in phase permeability leads to methane accumulation in crack and pores. The dependence of the average carbonated liquid filtration rate in a rectilinear fracture on the methane concentration and the fracture axis angle of inclination is obtained. The average ascending filtration speed of the carbonated liquid is determined to be greater than the average descending filtration speed. This is due to the effect of the ejection force that acts on the gas bubbles in the liquid. The authors propose a method of blocking methane seepage by physicochemical treatment of the rock mass. The methane blocking effect is achieved by creating a gas-tight zone in areas with a high risk of methane migration to the ground surface. The result is a reduction in methane emissions to the mined-out space and the environment. When the method is realized, the solid product of the polymer solution enters cracks with a disclosure greater than 6 μm or pore channels with an average diameter of 6 μm. At the same time, the water released by the destabi- lization of the polymer solution blocks the methane in small cracks and pores. In pore channels with an average diameter of less than 25 μm, there is a sharp increase in the dynamic viscosity of the polymer solution. This effect is due to an increase in the intermolecular interaction forces between the polymer solution and the walls of the filtration channels. Coagulation and destabilization of the polymer solution in cracks and pores is due to the separation of large agglomerates of macromolecules.

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Alves Garcia, Marco Antonio, et Alves Garcia. « GEOENVIRONMENTAL CHARACTERIZATION OF AN ATLANTIC FOREST SLOPE IN SÃO SEBASTIÃO (SP) ». EPH - International Journal of Science And Engineering 5, n^o 2 (27 juin 2019) : 8–16. http://dx.doi.org/10.53555/eijse.v5i2.85.

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The urban expansion and the growth of economic activities related to tourism, as well as those related to the port and sea, resulted in the occupation of the Serra do Mar slopes, in the municipality of São Sebastião - SP. This study was carried out in a clearing in an Atlantic Rainforest fragment of 4.8 hectares, located in the municipality of São Sebastião-SP, to provide subsidies to prevent and/or reduce the risks of land slippage on the slope. Thus, this work analyzed, characterized, and described the physiography and the properties of the soils on a slope of an Atlantic rainforest in the municipality of São Sebastião – SP, aiming to obtain a product on the risk of urban occupation. That is why, we used indicators associated with landscape physiography as a feature of slope (slope declivity), anthropic features (deforestation for crop cultivation and cattle raising) and soils (texture and pedogeochemistry). The results recommend structural actions, allowing the implementation of preventive measures such as revegetation of the area, thus minimizing the risks of land slippage and evolution of laminar erosion. Despite the dystrophic soil, the K, Ca and Mg levels only allow the vegetation implementation to be performed using NPK fertilization, reducing costs. Actions such as these are important as a way to prevent economic losses and accidents, since the area presents a Very High classification for mass movement processes.

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Gao, Lin, Xinjie Hu, Chuanming Ma, Heng Kuang, Huihui Qi et Zekang He. « Geoenvironmental Risk Evaluation of High-Efficiency Eco-Economic Zone in Weifang City, China ». Natural Hazards Review 21, n^o 3 (août 2020) : 05020005. http://dx.doi.org/10.1061/(asce)nh.1527-6996.0000384.

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Soares, Thais Dos Anjos, Sinara Gomes De Souza et Simone Cardoso Ribeiro. « CARACTERIZAÇÃO GEOAMBIENTAL DO MUNICÍPIO DE MILAGRES/CE ». Revista da Casa da Geografia de Sobral (RCGS) 21, n^o 2 (30 septembre 2019) : 925–35. http://dx.doi.org/10.35701/rcgs.v21n2.555.

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Para compreensão da dinâmica do espaço natural, a Geografia Física possuiu inúmeras interdisciplinaridades que a acompanham, e a caracterização geoambiental é uma delas, no propósito de reconhecimento dos elementos constituintes da paisagem. O presente trabalho foca na caracterização geoambiental do município de Milagres, município do sul cearense, e teve como metodologia, pesquisa bibliográfica e cartográfica acerca dos elementos geoambientais da área de estudo, assim como a elaboração de material cartográfico utilizando os programas ArcGis e Qgis. Partindo desse material foi realizado uma breve descrição deste município, focando fundamentalmente nas características ambientais. É essencial o estudo da área em que irá realizar pesquisas, buscando o aprofundamento dos saberes de seus aspectos geoambientais para se obter uma prévia do conhecimento do local que irá ser trabalhado.Palavras-chave: Caracterização Geoambiental; Cariri cearense; Milagres/CE. ABSTRACTFor the dynamics of the natural space, a physical geography had numerous interdisciplinarities that accompany it, and a geoenvironmental characterization is one of them, without the purpose of recognition of the constituent elements of the landscape. The process of analysis of the processes of risk analysis and analysis of the morphosculpture processes and their use in the soil and in the health and sciences / EC systems, which studies the thematic knowledge of geomorphological processes considering the knowledge about nature and values of culture and local landscape, however, the geoenvironmental characterization work of the municipality of Milagres / CE. The work had as a methodological objective, bibliographical research and the translation of the geoenvironmental elements of the study area. For this work, cartographic material was elaborated using the programs ArcGis and Qgis. Starting from this material was a detailed description of its area of study, as well as one of its environmental characteristics. What is essential for the selection of geoenvironmental data to obtain a preview of the knowledge about the work place that will be realized.Keywords: Geoenvironmental Characterization; Cariri cearense; Milagres/CE. RESUMENPara comprender la dinámica del espacio natural, la Geografía Física tiene numerosas interdisciplinarías que la acompañan, y la caracterización geoambiental es una de ellas, para reconocer los elementos constitutivos del paisaje. El presente trabajo se centra en la caracterización geoambiental del municipio de Milagres, municipio de sul cearense, y tuvo como metodología, investigación bibliográfica y cartográfica sobre los elementos geoambientales del área de estudio, así como la elaboración de material cartográfico utilizando los programas ArcGis y Qgis. A partir de este material se realizó una breve descripción de este municipio, centrándose principalmente en las características ambientales. Es esencial estudiar el área en la que realizar investigaciones, buscando profundizar el conocimiento de sus aspectos geoambientales para obtener un conocimiento previo del lugar donde se trabajará.Palabras clave: caracterización geoambiental; Cariri Ceará; Milagros / CE.

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Trubitsina, O. P., et V. N. Bashkin. « Consideration of Geopolitical Challenges within the Analysis of Geoenvironmental Risks for Oil and Gas Development of the Russian Arctic ». Issues of Risk Analysis 16, n^o 6 (27 décembre 2019) : 50–59. http://dx.doi.org/10.32686/1812-5220-2019-16-6-50-59.

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The article is devoted to the consideration of geopolitical challenges for the analysis of geoenvironmental risks (GERs) in the hydrocarbon development of the Arctic territory. Geopolitical risks (GPRs), like GERs, can be transformed into opposite external environment factors of oil and gas industry facilities in the form of additional opportunities or threats, which the authors identify in detail for each type of risk. This is necessary for further development of methodological base of expert methods for GER management in the context of the implementational proposed two-stage model of the GER analysis taking to account GPR for the improvement of effectiveness making decisions to ensure optimal operation of the facility oil and gas industry and minimize the impact on the environment in the geopolitical conditions of the Arctic.The authors declare no conflict of interest

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Oliveira, Anna Luiza Garção, Onaldo José Nunes Filho, Olívio Fiorese Neto, Fabrício Borges Amaral, Regiane Lima Rodrigues et Thiago Augusto Mendes. « Geoenvironmental Analysis for the Delimitation of the Construction waste Disposal Área ». Baru 3, n^o 2 (19 décembre 2017) : 270. http://dx.doi.org/10.18224/baru.v3i2.6169.

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Abstract: the intense production of construction and demolition waste (RCCD) in city spaces is a central problem for public management, especially in view of the difficulty in finding suitable places for the disposal of this waste without this poses a risk to the environment. In this sense, the present study aims to identify geoenvironmental aspects (geological, geomorphological and hydrological dynamics) for the evaluation of the terrain with the aid of GIS tools and field expeditions. In order to do so, the methodological stages were systematically systematized. They were: thematic maps, interviews with residents and technicians of the City Hall, monitoring of the deposit formation process and final environmental diagnosis. Finally, it was possible to list and propose structural and non-structural, corrective and mitigating measures for the area of deposit and permanent balance with the environment and with the predominant forms of use and occupation of the region.Análise Geoambiental para Delimitação de Área de Depósito de Resíduos de Construção CivilResumo: a intensa produção de resíduos de construção civil e demolição (RCCD) nos espaços das cidades constitui um problema central para a gestão pública, especialmente diante da dificuldade em se encontrar lugares adequados para deposição destes resíduos sem que isso configure um risco à população . Nesse sentido, o presente estudo visa elencar aspectos geoambientais (geológicos, geomorfológicos e dinâmica hidrológica) para avaliação do terreno com o auxílio de ferramentas SIG e expedições de campo. Para tanto, sistematizou-se, sequencialmente, as etapas metodológicas, sendo elas: elaboração de mapas temáticos, entrevistas com moradores e técnicos da Prefeitura Municipal, acompanhamento do processo de formação do depósito e diagnóstico ambiental final. Por fim, foi possível elencar e propor medidas estruturais e não-estruturais, corretivas e mitigadoras para a área do depósito possibilitando equilíbrio ambiental em consonância com as formas de uso e ocupação predominantes da região.

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Spanidis, Philip-Mark, Christos Roumpos et Francis Pavloudakis. « A Methodology Combining IDEF0 and Weighted Risk Factor Analysis for the Strategic Planning of Mine Reclamation ». Minerals 12, n^o 6 (3 juin 2022) : 713. http://dx.doi.org/10.3390/min12060713.

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The reclamation of lignite surface mines is a long-term commitment of high complexity. These reclamation projects consist of land use repurposing, reinstatement of landforms and landscape, remediation of polluted soils and water bodies, restoration of ecosystems, and other related activities, which are usually developed when mines enter the ultimate phase of their operational life. Nowadays, reclamation is supported by regulatory settings and legislative provisions, which motivate the affected communities to move towards a circular economy and sustainable development. This paper investigates the geoenvironmental and socioeconomic problems of reclamation and draws research questions on how the strategic planning of a reclamation project can be performed and how the relevant project risks can be investigated and managed. In turn, a prototype methodology based on experts’ judgment is suggested with a case study combining: (a) the IDEF0 (Integrated DEFinition Function) modelling technique, as a low cost and easy-to-develop tool enabling strategic planning of reclamation projects, and (b) the Weighted Risk Factor analysis as a suitable method for effective risk analysis and response planning in post-mining frameworks. Finally, a discussion on the methodology and proposals for further research are provided.

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Trubitsina, O. P., et V. N. Bashkin. « Ecological rating as an indicator of geoenvironmental risk management of Russian oil and gas companies in the Arctic ». Issues of Risk Analysis 16, n^o 2 (28 avril 2019) : 58–69. http://dx.doi.org/10.32686/1812-5220-2019-16-2-58-69.

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The article is devoted to the issues of environmental ratings as an indicators of the process of geoenvironmental risk (GER) management of Russian oil and gas companies, operating in theArctic. The authors demonstrate the algorithm of GER management model processes and reveal the need to use environmental ratings for the oil and gas industry. Particular attention is given to the issues of rating results of Environmental Responsibility of Oil and Gas companies in Russia that was held in 2014—2017 years. It was conducted by the cooperative initiative by CREON Group and WWF Russia with participation of National Rating Agency. The authors have selected from all Russian oil and gas companies only those who operating in the Arctic region and they have analyzed them. The rating's results show that the leaders are companies whose management pays special attention to gas. They are Sakhalin Energy (Sakhalin-2), Gazprom and Zarubezhneft. The authors point out that the environmental rating of Russian oil and gas companies can serve as an indicator of GER management, as a tool to inform foreign investors about the environmental impact to ensure the ecological safety of the region.

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Thèses sur le sujet "Geoenvironmental risk"

Silva, Adriano Ezequiel. « Análise da vulnerabilidade e risco como subsídio ao planejamento urbano : município de Pirambu (SE) ». Universidade Federal de Sergipe, 2016. https://ri.ufs.br/handle/riufs/5400.

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The city of Pirambu, located in the north shore of the Sergipe state highlights itself because of the relatively preserved natural characteristics. Inside the area of the county, the coastal zone concentrates the biggest interest of the realty agents due to its 23km of shoreline, including some parts that are protected by the environmental law. In the interphase zone the presence of dunes, mangroves, rivers and lagoons stand out, for example, the Sangradouro Lagoon and the Redonda Lagoon. This study has evaluated the environmental risk and vulnerability, with urban focus, of this county. In order to do that a theoretical review approach was made with the fundaments of the Geosystemical method, starting with the theoretical contributions of Bertrand (1971) and the Ecodynamical analysis of Tricart (1977), addressing the mapping and diagnosis techniques proposed by the INPE (National Institute of Space Research), which were adequately adapted to the local reality, complemented by mapping campaigns. As results, a thematic map was made with the interpretations of the geofacies of the studied area, introducing the natural and anthropic risks and the legal restrictions existents in the area, with the finality of subsidize the planning of the soil use and occupation, with suggestions of aptitude for urban purposes in future studies.
O município de Pirambu localizado no litoral norte do estado de Sergipe se destaca dentre os demais devido às suas potencialidades naturais, relativamente preservadas. Dentro da área do município, a zona costeira é a que desperta maior interesse imobiliário, devido aos 23 km de praias, sendo algumas dessas protegidas por Lei. Na zona interfásica o destaque fica por conta da presença de dunas, manguezais, rios e lagoas, como por exemplo, Lagoa do Sangradouro e a Lagoa Redonda. Este estudo avaliou a vulnerabilidade e o risco ambiental, com enfoque urbano, nesse município. Para tanto foi realizado uma abordagem teórica “estado-da-arte” fundamentada no método Geossistêmico, partindo inicialmente nas contribuições teóricas de Bertrand (1971) e na análise Ecodinâmica de Tricart (1977), passando pelas técnicas de mapeamento e diagnósticos propostos pelo INPE - Instituto Nacional de Pesquisas Espaciais (Zoneamento Ecológico Econômico – ZEE), as quais foram devidamente adaptadas à realidade local, complementadas por incursões de campo. Como resultados, obtive-se um mapa temático com as interpretações das geofácies da área de estudo, introduzindo os riscos naturais e antrópicos, as restrições legais em algumas dessas áreas, tendo como finalidade subsidiar o planejamento do uso e da ocupação do solo, com sugestões de aptidão para fins urbanos em trabalhos futuros.

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Turchi, Agnese. « Geo-environmental risk analysis for a sustainable local territorial management ». Doctoral thesis, 2021. http://hdl.handle.net/2158/1235238.

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The study focuses on the assessment of the potential damage to the elements at geoenvironmental risk in Ricasoli village (Municipality of Montevarchi in Arezzo Province, Tuscany Region, Italy), affected by landslides, and Stromboli island (Municipality of Lipari in Messina Province, Sicilian Region, Italy), affected by landslides, volcanic phenomena, tsunamis and earthquakes. The proposed methodological framework is the result of the intersection of two different approaches to the risk analysis: the geo-scientist approach and the approach developed by the Territorialist School of urban and regional planning and design. In order to implement strategies for prevention, reduction and mitigation of geo-environmental risks, the vulnerability and exposure were separately examined, even so maintaining a general overview. At the same time the hazard was necessarily considered a self-reproducing rule because it represents the keyelement for a sustainable and resilient Territorial Government wherever a natural event may occur, regardless of its variation in the probability of occurrence over time (e.g. floods or landslides are particularly dependent on climate changes). The preliminary analyses were mainly crucial to define the territorial heritage, which considerably influenced the exposure value and the potential damage to the elements at risk (i.e. buildings, infrastructures, land uses). Moreover, ex novo building-sheets and infrastructure-sheets were created in order to collect the proper data on the compositional characteristics of real estates, with the purpose to assess their physical vulnerability at intermediate scales (i.e. 1:2.000, 1:5.000, 1:10.000) as accurately as possible. Finally, semi-structured interviews and surveys to inhabitants and tourists were useful to make some preliminary consideration on risk perception and calibrate the future interventions. The main results of the study show the strong correlation between the high or moderate-high heritage value of the elements at risk and their high potential damage: the intrinsic value, which is related to the historical-cultural, social, identity and landscape values, considerably increased the initial market value (buildings), construction coast (infrastructures) and agricultural average value (land uses) of real estates, according different scenarios in both case studies.

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Chapitres de livres sur le sujet "Geoenvironmental risk"

Bozo, L., et G. J. Ikonomi. « Geoenvironmental Risk Assesment in Albania ». Dans Advances in Environmental Geotechnics, 890–92. Berlin, Heidelberg : Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-04460-1_115.

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Whittaker, M., J. G. Sprenger et D. D. DuBois. « Geoenvironmental Problem Identification and Risk Management ». Dans Geotechnical and Geoenvironmental Engineering Handbook, 663–90. Boston, MA : Springer US, 2001. http://dx.doi.org/10.1007/978-1-4615-1729-0_22.

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McBean, E., K. Schmidtke, W. Dyck et F. Rovers. « Monitoring of Contaminants and Consideration of Risk ». Dans Geotechnical and Geoenvironmental Engineering Handbook, 879–919. Boston, MA : Springer US, 2001. http://dx.doi.org/10.1007/978-1-4615-1729-0_28.

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Galiulin, Rauf V., et Vladimir N. Bashkin. « Biogeochemical Approaches for Managing Geoenvironmental Risk of Hydrocarbons Pollution in Disturbed Soils ». Dans Biogeochemical Technologies for Managing Pollution in Polar Ecosystems, 185–92. Cham : Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-41805-6_15.

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Kayet, Narayan. « Forest Fire Risk Assessment for Effective Geoenvironmental Planning and Management using Geospatial Techniques ». Dans Spatial Modeling in Forest Resources Management, 281–95. Cham : Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-56542-8_12.

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Dowd, P. A. « The Assessment And Analysis Of Financial, Technical And Environmental Risk In Mineral Resource Exploitation ». Dans Deposit and Geoenvironmental Models for Resource Exploitation and Environmental Security, 187–211. Dordrecht : Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0303-2_10.

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Wang, Huabin, Rejean Couture et Cees Van Westen. « Introduction : Risk Assessment ». Dans Landslide Science for a Safer Geoenvironment, 647. Cham : Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05050-8_100.

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Nadim, Farrokh. « Introduction : Risk Reduction Strategy ». Dans Landslide Science for a Safer Geoenvironment, 743–44. Cham : Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05050-8_114.

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Pelling, Mark. « Disaster Risk Reduction and Sustainable Development ». Dans Landslide Science for a Safer Geoenvironment, 211–16. Cham : Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-04999-1_27.

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Arambepola, N. M. S. I., et Senaka Basnayake. « Efforts in Landslide Risk Reduction in Asia ». Dans Landslide Science for a Safer Geoenvironment, 81–87. Cham : Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-04999-1_6.

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