International Journal of Sediment Research最新文献

{"title":"The role of waves in the resuspension and transport of fine sediment and mine tailings from the Fundão Dam failure, Doce River, Brazil","authors":"Susana Beatriz Vinzon ,&nbsp;Marcos Nicolas Gallo ,&nbsp;Mariela Gabioux ,&nbsp;Diego Luiz Fonseca ,&nbsp;Fernanda Minikowski Achete ,&nbsp;Renato David Ghisolfi ,&nbsp;Guilherme Nogueira Mill ,&nbsp;Sabrina Aparecida Ramos da Fonseca ,&nbsp;Valéria da Silva Quaresma ,&nbsp;Kyssyanne Samihra Santos Oliveira ,&nbsp;Guilherme Brigagão ,&nbsp;Léo Gonçalves Machado","doi":"10.1016/j.ijsrc.2023.09.004","DOIUrl":"10.1016/j.ijsrc.2023.09.004","url":null,"abstract":"<div><p>In one of the world's worst mining disasters, after flowing 670 km down the Doce River, about 20 million m³ of tailings reached the coast of Brazil in November 2015. The occurrence of persistent northerly winds favored the detachment of the river plume from the coastline and its displacement southward. However, observations of the sediment plume along the coast during the year following the breach, using aerial photographs, indicated that the plume is more extensive and persistent in a northerly direction. Previous studies have shown that although the most persistent winds are from the northern sector (70%), there is a greater incidence of waves from the southern sector (62%), especially with greater heights and periods. In this research, the effect of gravity waves on the transport of sediments is investigated, and, therefore, tailings from the Doce River and deposited on the adjacent inner continental shelf, mixed with the fluvial mud deposit also are investigated. Two mechanisms were investigated: 1) the effect of waves on sediment resuspension and their combination with tidal and wind forcings, using a two-dimensions in the horizontal directions (2DH) numerical model within the DELFT3D software, and 2) the capture of the fluvial plume by littoral drift, calculated by means of analytical models using data from wave propagation modeling. Both mechanisms were studied for 2019, also considering two major meteorological events in the region. Both effects were relevant for the northward dispersion of fine sediment, highlighting the effect of waves on the potential for northward transport of tailings towards the Abrolhos Bank.</p></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1001627923000586/pdfft?md5=0a65330dcc081de9fa8b3de7723b4597&pid=1-s2.0-S1001627923000586-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135429360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Long-term evolution of meandering channel planforms in response to the mean annual flow and width–depth ratio","authors":"Xiaolong Song ,&nbsp;Haijue Xu ,&nbsp;Yuchuan Bai","doi":"10.1016/j.ijsrc.2023.11.003","DOIUrl":"10.1016/j.ijsrc.2023.11.003","url":null,"abstract":"<div><p>A depth-averaged linearized meander evolution model was used to numerically evaluate the spatiotemporal evolution of the meandering channel centerline in the plane at various mean annual flows and width–depth ratios for capturing the overall average trend of the meandering channel planform. This analysis was done to better understand the consistent responses of the river morphology to possible future tectonic and climatic changes. The computational cases included an idealized sine-generated meandering channel with a moderate maximum deflection angle and a typical natural meander for the Jiyun River in China. The study results showed phased development and response characteristics of the meandering channel centerline (to the mean annual flow), along with increases in the specified mean annual width (<em>B</em>)–depth (<em>H</em>) ratio (represented by <em>B</em>/<em>H</em>). First, the spatial meander straightening trend over time weakened during Phase 1 (<em>B</em>/<em>H</em> ≤ 16.5) and gradually changed to a meander developing trend during Phase 2 (16.5 &lt; <em>B</em>/<em>H</em> ≤ 27) with an overall insensitivity to the flow magnitude. Second, starting from the downstream tail during Phase 3 (27 &lt; <em>B</em>/<em>H</em> ≤ 28.9), the symmetric development form along the transverse direction (perpendicular to the mean flow direction) was disrupted, while flow effects were highlighted when the mean annual <em>B</em>/<em>H</em> exceeded 28. Finally, an obvious onset and jump process of the channel sensitivity in response to flow occurred during Phase 4 (28.9 &lt; <em>B</em>/<em>H</em> ≤ 29.5). These event characteristics are very similar to the transition from laminar to turbulent flow in fluid mechanics. This study provides insights for more in-depth exploration of meandering mechanisms and technical support for effective river management.</p></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1001627923000707/pdfft?md5=153064cc5dc93e37160f1c92af226fc2&pid=1-s2.0-S1001627923000707-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135665036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Environmental radioactivity, radiological hazards, and trace elements assessment of nearshore sediment in the Bay of Bengal","authors":"Manikanda Bharath Karuppasamy ,&nbsp;Usha Natesan ,&nbsp;Chandrasekaran Seethapathy ,&nbsp;Srinivasalu Seshachalam","doi":"10.1016/j.ijsrc.2023.12.002","DOIUrl":"10.1016/j.ijsrc.2023.12.002","url":null,"abstract":"<div><p>The current study focuses on the environmental radioactivity and multi-risk assessment of nearshore sediment as a source of marine pollution along the Bay of Bengal. The study examines the distribution of primordial radionuclide concentrations using a thallium-activated sodium iodide (NaI(Tl)) detector-based gamma-ray spectrometer and Potentially Toxic Elements (PTE) through atomic adsorption analysis. The data also were used to characterize ecological threats, radiological risks, and the geospatial distribution of toxic compounds in nearshore sediment as a proxy for marine pollution. The active concentration of primordial radionuclides such as uranium-238 (²³⁸U), thorium-232 (²³²Th), and potassium-40 (⁴⁰K) was found in the range from ≤ 3 to 68 (11.4), ≤ 9.5 to 142.7 (41.2), and 85.2 to 603.4 (362) Bq/kg, and the results show that the average radioactive concentration of the average radionuclides was less than suggested by the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) ranges. Potentially toxic elements iron (Fe), chromium (Cr), nickel (Ni), lead (Pb), and zinc (Zn) were higher in deeper water depths. The current study reveals that mud distribution primarily controls such elements. A decreasing order has been seen as follows by the ecological risk index of individual elements: copper (Cu) &gt; lead (Pb) &gt; nickel (Ni) &gt; chromium (Cr) &gt; zinc (Zn). The significant Pb, Cu, and Zn concentrations indicated high pollution at most stations, possibly resulting from regional and terrestrial sources such as industrial activity, urban drainage, manufacturing, and farming. The migration of contaminated soil from the industrial and transportation sectors may be the source of the increased levels of hazardous elements and naturally occurring radionuclides in the sediment transported into the coastal ecosystems of Bay of Bengal.</p></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1001627923000768/pdfft?md5=a4f09b230f928780349c04f7a394fcbb&pid=1-s2.0-S1001627923000768-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138632507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of sample preparation methods on measured characteristics of marine and fluvial sediment","authors":"Rachid Zentar ,&nbsp;Fatima Ouendi ,&nbsp;Hongwei Wang","doi":"10.1016/j.ijsrc.2023.09.002","DOIUrl":"10.1016/j.ijsrc.2023.09.002","url":null,"abstract":"<div><p>Dredged sediment is complex material composed of mineral phases, organics phases, and liquid phases. For the characterization of sediment in the laboratory, the material should be dried before applying some tests, such as the determination of organic matter content, X-ray diffraction (XRD) analysis, X-ray fluorescence (XRF) analysis, specific surface area, specific gravity, and many other tests. To do such tests, in test standards, no specific drying method is recommended. This paper evaluates the effects of drying methods on the measured characteristics of dredged sediment. The drying methods investigated in the current study are oven-drying, freeze-drying, and air drying. From the results obtained, it seems that the drying method affects the results of the test done on the sediment. Among the drying methods, freeze-drying has less effect on sediment properties when the results are compared to a few properties measured on undried material. However, from the point of view of materials classification in road construction, no effects of drying methods are recorded.</p></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1001627923000562/pdfft?md5=d510cb4fc484c8b8ac4ba167ac717b75&pid=1-s2.0-S1001627923000562-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135389606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of the angle between the rock strata and slope on flow hydraulics and sediment yield in karst trough valley: laboratory scour experiment","authors":"Yuqi Zhang, Lan Song, Yunfei Bi, Binghui He, Rongchang Zeng, Tianyang Li","doi":"10.1016/j.ijsrc.2023.12.005","DOIUrl":"https://doi.org/10.1016/j.ijsrc.2023.12.005","url":null,"abstract":"<p>The angle between the exposed bedrock and slope in a karst trough valley strongly affects overland flow behavior, thus, altering the generation of runoff and sediment. However, the directions and magnitudes of these effects remain unclear. The current study aimed to investigate the effects of the angle between the rock and slope on flow hydraulics, runoff, and sediment yield, as well as their linkages. A laboratory flume scour experiment was done under different combinations of angles between rock strata and slope (0°, 30°, 60°, 90°, 120°, and 150°), flow discharge rates (5, 7.5, and 10 L/min) and slope gradients (10°, 15°, and 20°) to simulate the field environment in a karst trough valley. The flow hydraulics (Reynolds number, flow velocity, flow depth, and Darcy-Weisbach friction factor), sediment yield, sediment concentration, and runoff rate were determined. The results showed that with increasing scour duration, the Reynolds number and flow velocity decreased but the flow depth and Darcy-Weisbach friction factor increased. The angle between the rock strata and slope significantly affected the flow velocity and Darcy-Weisbach friction factor, while slightly affecting the flow depth and Reynolds number. Over the scour duration, the runoff rate first increased and remained at a steady state but the sediment concentration and sediment yield rate first increased and then sharply decreased to a steady state. The sediment concentration and sediment yield rate both significantly decreased as the angle between the rock strata and slope increased. The runoff rate was closely linked to the flow velocity and Darcy-Weisbach friction factor as well as the sediment yield rate and sediment concentration. The current results indicate that the angle between the rock strata and the slope should be considered an important parameter when developing a soil erosion prediction model for karst trough valleys.</p>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139029904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"TOC","authors":"","doi":"10.1016/S1001-6279(23)00062-8","DOIUrl":"https://doi.org/10.1016/S1001-6279(23)00062-8","url":null,"abstract":"","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2023-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71783283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Historical fluxes of metal and metalloids in an aquatic ecosystem affected by land-use change and mining activities in northwestern Mexico","authors":"Ochoa-Contreras Roberto ,&nbsp;Jara-Marini Martín Enrique ,&nbsp;Ruiz-Fernández Ana Carolina ,&nbsp;Sanchez-Cabeza Joan Albert ,&nbsp;Meza-Figueroa Diana ,&nbsp;Pérez-Bernal Libia Hascibe","doi":"10.1016/j.ijsrc.2023.05.003","DOIUrl":"https://doi.org/10.1016/j.ijsrc.2023.05.003","url":null,"abstract":"<div><p><span><span>Freshwater reservoirs are essential owing because of their ecological, economic, and social importance. They are particularly vulnerable to contamination, as of metal and metalloids, derived from anthropogenic activities like mining. The temporal variations in trace element concentrations (arsenic (As), mercury (Hg), chromium (Cr), copper (Cu), nickel (Ni), lead (Pb), and zinc (Zn)), enrichment, fluxes, and possible sources were evaluated by studying two </span>sediment cores from the La Angostura (ANG) Reservoir (northwest Mexico), using </span>²¹⁰<span>Pb geochronology. The enrichment factors showed from null to minor enrichment for most elements, but moderate to severe enrichment of mercury (Hg). Most trace element concentrations had a detrital origin, and notable Hg concentration increases since the past decade were associated with severe drought periods, likely resulting from wildfires. The observed sediment concentrations of As and Hg can cause adverse effects on biota in the ecosystem since they are above the probable effect level (PEL). Development of strategies for metal attenuation in this reservoir is recommended and metals should be controlled until specific ecotoxicological studies are performed.</span></p></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49865335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Igarapé Weir decelerated transport of contaminated sediment in the Paraopeba River after the failure of the B1 tailings dam (Brumadinho)","authors":"Daniela Patrícia Salgado Terêncio ,&nbsp;Fernando António Leal Pacheco ,&nbsp;Renato Farias do Valle Junior ,&nbsp;Maytê Maria Abreu Pires de Melo Silva ,&nbsp;Teresa Cristina Tarlé Pissarra ,&nbsp;Marília Carvalho de Melo ,&nbsp;Carlos Alberto Valera ,&nbsp;Luís Filipe Sanches Fernandes","doi":"10.1016/j.ijsrc.2023.06.004","DOIUrl":"10.1016/j.ijsrc.2023.06.004","url":null,"abstract":"<div><p>The B1 dam of Córrego do Feijão Mine, owned by Vale, S.A. mining company and located on the Ferro-Carvão stream, collapsed and injected 2.8 Mm³<span> of clayey, silty, and sandy iron- and manganese-rich tailings into the Paraopeba River (Minas Gerais state, Brazil). The accident occurred on 25 January 2019 and the tailings have been co-transported with coarser natural sediment since then, being partly trapped in the Igarapé Weir reservoir located on the Paraopeba River nearly 45 km downstream the injection point. The general purpose of the current study was to model suspended sediment transport in the vicinity of the Igarapé Weir aiming to assess the concomitant barrier effect imposed by this structure. Specifically, the spatial distributions of suspended clay, silt, and very fine-grained sand fractions (CSS) of sediment were mapped around the Igarapé Weir under low-flow (16 m</span>³/s) and high-flow (5 to 10,000 years return period stream discharge; 699–2,699 m³<span><span><span><span>/s) regimes, using RiverFlow2D as the modelling tool. The concentrations of the various grain materials in the upstream and downstream sectors were quantified linking the barrier effect to concentration reductions in the direction of stream flow. It was also a study goal to calculate differences of iron and manganese concentrations in the sediment + tailings mixtures along the Paraopeba River. The study results showed reductions in the CSS between 6.6% and 18%, from upstream to downstream of the Igarapé Weir, related with backwater effects, free and submerged hydraulic jumps, bank sedimentation in periods of high flow, and streambed sedimentation controlled by channel sinuosity and tailings density. These reductions were accompanied by drops in the concentrations of iron and manganese present in the clay and silt fractions, which varied between 6% and 42% under low flows and between 16% and 44% under high flows. Bank sedimentation was viewed as a potential threat to the riparian vegetation in the long-term. </span>Dredging is the potentially most effective </span>mitigation measure to help lead the Paraopeba River to a pre-rupture condition. The retention of sediment + tailings transported in suspension is less effective than the trapping of </span>bedload sediment + tailings behind the Igarapé weir. The efficacy of sediment trapping is expected to be larger for natural sediment because it is much coarser than the tailings. In that context, the simulations revealed for the low-flow period that 33.6% of the sediment deposition comprised suspended transport of natural sediment (thus, was comprised 66.4% of bedload transport), this proportion rose to 86.9% for mixtures of natural sediment + tailings, a result that did not differ much for the high-flow periods.</span></p></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46090528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"TOC","authors":"","doi":"10.1016/S1001-6279(23)00045-8","DOIUrl":"10.1016/S1001-6279(23)00045-8","url":null,"abstract":"","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42781967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A framework approach to address the trend and causes of flood stage change in a river reach downstream of a dam influenced by tributaries","authors":"Zhaohua Sun ,&nbsp;Shanshan An ,&nbsp;Xinyue Zhou ,&nbsp;Zhiqing Li ,&nbsp;Lei Zou","doi":"10.1016/j.ijsrc.2023.05.001","DOIUrl":"10.1016/j.ijsrc.2023.05.001","url":null,"abstract":"<div><p>The evaluation of the trend of flood stage changes in alluvial rivers downstream of dams is important for flood management. However, the flood stage associated with a given discharge generally is nonstationary in river reaches with multiple tributaries. This is not only because of the dam-induced shifting in the cross-sectional area and/or channel roughness but also because of the backwater induced by high flows from the tributaries. To determine the total trend of the flood stage and quantify the separate contributions of hydrological and geomorphic effects, the current study proposed a framework approach consisting of hydrological analysis and multiscenario numerical modeling. By this means, the trend in the flood stage could be distinguished from the stage oscillation driven by varying factors, including extreme hydrologic events. The effects of chronic changes, including channel incision and flow resistance increase, also were quantitatively separated. This framework was applied to the Chenglingji–Datong (CD) reach downstream of the Three Gorges Dam (TGD) in the Yangtze River, China. The results indicated that the effect of the roughness increase counterbalanced the effect of channel incision when the flow discharge was beyond the bankfull level. The backwater effect induced by tributary inflow was the major cause of the flood stage rise in recent years. The method presented in the current study provides a useful tool for managers and engineers to obtain better insight into the driving mechanisms of flood stage changes in river reaches that are downstream of dams. These findings indicate that the flood stage may not decline or may even occasionally increase, although the cross-sectional area was enlarged by channel incision. Special attention should be given to the flood risk situation in the study reach after the TGD began operation.</p></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49109634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}