International Journal of Sediment Research最新文献

{"title":"Evaluation of eco-friendly soil slope stabilization techniques for forest roads by using an Artificial Neural Network (ANN)","authors":"Kıvanç Yüksel ,&nbsp;Neşe Gülci ,&nbsp;Abdullah Emin Akay ,&nbsp;Sercan Gülci","doi":"10.1016/j.ijsrc.2025.01.011","DOIUrl":"10.1016/j.ijsrc.2025.01.011","url":null,"abstract":"<div><div>In this study, the effectiveness of different stabilization techniques implemented on the forest road cut slopes was investigated in terms of controlling erosion and runoff. Wood production residues, hydroseeding, and jute geotextile treatments were applied on study plots located on the example road. The amount of erosion and runoff were measured on the study plots which were established for different slope grades of 20°, 30°, and 40°. Then, the amount of erosion and runoff measured from the plots were compared to determine the performance of stabilization techniques on the cut slope. In the solution process, an Artificial Neural Network (ANN) model, which is one of the machine learning algorithms, was used to predict sediment yield from forest road cut slopes. The sediment yields averaged over the three slope grades from highest to lowest were measured as 6.41, 1.16, 0.65, and 0.45 g/m² in the control plot with no treatment, jute geotextile, hydroseeding, and wood production residues, respectively. The averaged over the three runoff amounts slope grades from the highest to the lowest were determined as 6.82, 3.71, 1.64, and 1.30 mm/m² in control the plot, jute geotextile, hydroseeding, and wood production residues, respectively. Comparing to the control plot, wood production residues, hydroseeding, and jute geotextile treatments reduced the sediment yields by 14, 10, and 5 times, respectively. On the other hand, wood production residues, hydroseeding, and jute geotextile applications reduced the runoff amount by 5, 4, and 2 times, respectively. As a result, it was found that wood production residues and hydroseeding treatment can be more efficient in reducing the amount of runoff and sediment yield compared to the jute geotextile treatment. The ANN method achieved high accuracy in predicting sediment yield and it was concluded that the ANN can be used as an effective method to evaluate soil slope stabilization techniques.</div></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 3","pages":"Pages 476-488"},"PeriodicalIF":3.5,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143932148","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":"","authors":"Hong-wei Fang","doi":"10.1016/j.ijsrc.2025.02.001","DOIUrl":"10.1016/j.ijsrc.2025.02.001","url":null,"abstract":"","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 2","pages":"Pages 383-384"},"PeriodicalIF":3.5,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601188","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":"Complex morphodynamic processes of a large braided channel in response to different flood flow discharges on the Qinghai-Tibet Plateau","authors":"Weiqi Ouyang ,&nbsp;Zhiwei Li ,&nbsp;Hanyou Lu ,&nbsp;Yunshuo Cheng ,&nbsp;Guo-An Yu ,&nbsp;Weiwei Yao ,&nbsp;Zhixian Cao","doi":"10.1016/j.ijsrc.2025.01.008","DOIUrl":"10.1016/j.ijsrc.2025.01.008","url":null,"abstract":"<div><div>The frequency and intensity of river floods in the Qinghai-Tibet Plateau (QTP) are increasing under the background of climate warming. In particular, the braided channel in the wide valley section in the Source Region of the Yangtze River (SRYR) has undergone drastic adjustments due to recent summer floods and further adjustments are expected in the future as climate change continues. Nonetheless, a lack of a quantitative description of the phenomenon persists. In order to unravel morphodynamic processes of a braided river under different flood flow discharges, a two-dimensional morphodynamic model was established using Delft3D to simulate the local braided channel in the Tuotuo River based on field observations and remote sensing images in the SRYR. The data of 1, 2, 5, and 10-yr flood hydrographs from 1985 to 2020 were obtained, using the hydrological data at the Tuotuohe Gauging Station. Specifically, two groups of actual flood hydrographs were used to simulate the hydrodynamic and riverbed adjustment of the braided channel reach. The following findings were revealed: (i) increases in discharge cause increases of the water level, and thus the flood flow erode and submerge the sandbars. During a flood, the previous branches are replaced by new branches and the braided channel shows a significantly different configuration after the flood. (ii) With the increase of the flood discharge, the amount of sediment erosion and deposition in the braided channels escalates. Specifically, the sediment erosion and deposition of the 10-yr flood will increase by 3.1 times and 4.7 times, respectively, in comparison with the 1-yr flood. (iii) When the discharge is greater than 180 m³/s, the braiding intensity in the wide valley section (&gt;1.2 km) has a significant decreasing trend with the increase in the flood flow. When the discharge is less than 180 m³/s, the correlation between the braiding intensity and flood flow is not significant in the wide reach. (iv) The braiding intensity of the wide reach as flood frequency increases from the 1- to 2-yr events increases by 14.3%, 11.6%, respectively, and decreases for the 5- to 10-yr events by 3.2% and 10.8%, respectively. In the narrow reach, the increases are 25.5% and 11.2%, for the 1- and 2-yr events, respectively, and the decreases are 25.0% and 53.3% for the 5- and 10-yr events, respectively. The parabolic shape of the correlation between the braided intensity and flood discharge increases first, reaches a peak, and then decreases. Overall, the current study contributes to the understanding of the impact of gradually increasing flood discharge on the morphodynamics of braided rivers in the QTP.</div></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 3","pages":"Pages 439-453"},"PeriodicalIF":3.5,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143932145","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":"Probabilistic risk assessment of fifteen metal(loid)s and their mixtures in surface sediment of Hongze Lake (China) using the diffusive gradients in thin films (DGT) technique","authors":"Changjiang Ma ,&nbsp;Yang-Guang Gu ,&nbsp;Richard W. Jordan ,&nbsp;Shi-Jun Jiang ,&nbsp;Meirong Wang","doi":"10.1016/j.ijsrc.2025.01.007","DOIUrl":"10.1016/j.ijsrc.2025.01.007","url":null,"abstract":"<div><div>Freshwater lakes in China face increasing environmental pressures due to rapid urbanization and industrialization, with metal pollution emerging as a significant concern. Despite this, the ecological risk assessment of metal mixtures in lake sediment remains limited. The current study addresses this gap by utilizing the diffusive gradients in thin films (DGT) technique to investigate the distribution and ecological risk of metals and arsenic in surface sediment of Hongze Lake, China. Substantial variations in metal concentrations were found across sampling sites, with average values of manganese (Mn) (1,730.56 μg/L) and iron (Fe) (930.58 μg/L) being notably high. The ecological risk quotient (RQ) values for Mn and Fe exceeded 1 at all sites, indicating substantial ecological risks, while copper (Cu) and arsenic (As) had RQ values near or above 1 at most sites. A joint probabilistic risk assessment using the species sensitivity distribution (SSD) method revealed a 30.31% probability of concurrent toxic effects on aquatic organisms. These results highlight the pressing need for proactive measures to mitigate metal contamination risks in Hongze Lake. The current study provides critical insight into the ecological risks associated with metal pollution and underscores the importance of effective environmental management to preserve the lake's ecosystem.</div></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 3","pages":"Pages 512-522"},"PeriodicalIF":3.5,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143932134","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":"CFD modeling of movement of geobag for riverbank erosion control structures","authors":"Saman Shabani ,&nbsp;Yuntong She ,&nbsp;Carlos Frederico Lange","doi":"10.1016/j.ijsrc.2025.01.006","DOIUrl":"10.1016/j.ijsrc.2025.01.006","url":null,"abstract":"<div><div>The erosion of riverbanks led to significant environmental and infrastructure challenges, leading to soil loss, structural damage, and flooding. Since the 1970s, erosion control structures such as geobags have been widely utilized to protect riverbanks. The geobags provide several advantages, including improved durability and cost-efficiency, compared with traditional rip-raps. To design geobags, it is necessary to understand how the geobags will perform under hydraulic loading. Despite numerous fluvial studies focusing on geobag stability, no study examined how a single bag behaves under current loads, and none of the models simulated the motion of bags. This research investigated geobag movement within the channel bed with overset mesh techniques using computational fluid dynamics (CFD). Additionally, an image processing technique was employed to evaluate the borders of the geobags within the channel. By conducting the simulation, the drag and friction forces acting on the single bag were carefully analyzed, and the effects of the shape, fill ratio and material of the geobags were determined. The failure velocity of geobags following the same pattern was determined based on a correlation with the experiment.</div></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 4","pages":"Pages 690-700"},"PeriodicalIF":3.5,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144549631","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":"Experimental study on the self-cleaning behavior of slit dams for debris flow hazard mitigation","authors":"Diwen Huang ,&nbsp;Yong You ,&nbsp;Hao Sun ,&nbsp;Daochuan Liu ,&nbsp;Huaquan Yang ,&nbsp;Wentao Zhang","doi":"10.1016/j.ijsrc.2025.01.009","DOIUrl":"10.1016/j.ijsrc.2025.01.009","url":null,"abstract":"<div><div>Self-cleaning is a crucial feature of slit dams, which not only enhances upstream and downstream hydraulic connections but also automatically restores a dam's debris flow storage capacity. In this work, a series of specially designed flume tests are performed to simulate the self-cleaning process. The flow rate, relative opening, bed-slope angle, and number of openings are considered. The erosion process, topographic characteristics, and relative erosion depth are analyzed to gain insight into the self-cleaning details. The current results reveal that when the boulders jamming the openings are removed, erosion occurs in three stages (downcutting, headward erosion, and lateral erosion). Conversely, when the blockage remains stable, only surface armoring occurs. Furthermore, after the self-cleaning process reaches a quasiequilibrium state, the topographic features are summarized, and the differences in the maximum erosion depth at the opening are analyzed for different experimental conditions. This paper proposes a critical criterion (<em>F</em>) for the self-cleaning of slit dams on the basis of dimensional analysis. The critical criterion takes into account the interactions of three parameters (Froude number, relative opening, and opening rate) and can be conveniently applied to existing slit dams. When <em>F</em> is less than 0.25, the opening remains blocked, and only surface armoring occurs; when <em>F</em> is between 0.25 and 0.38, the blockage may be removed; and when <em>F</em> is greater than 0.38, self-cleaning leads to massive erosion, and the blockage is removed. Therefore, the proposed critical criterion can help design the opening dimensions of a slit dam, restoring its storage capacity. Finally, the positive effect of self-cleaning on restoring the storage capacity of slit dams is discussed.</div></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 3","pages":"Pages 454-465"},"PeriodicalIF":3.5,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143932146","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":"Multidecadal analysis of erosion susceptibility in a watershed heavily impacted by deforestation in southeastern Amazonia","authors":"Edilson Freitas da Silva ,&nbsp;José Tasso Felix Guimarães ,&nbsp;Gabriel Negreiros Salomão ,&nbsp;Prafulla Kumar Sahoo ,&nbsp;Douglas Batista da Silva Ferreira ,&nbsp;Mariana Maha Jana Costa Figueiredo ,&nbsp;Silvio Junio Ramos ,&nbsp;Renato Oliveira da Silva Júnior ,&nbsp;Adayana Maria Queiroz de Melo ,&nbsp;Wilson da Rocha Nascimento Junior ,&nbsp;Pedro Walfir Martins Souza Filho ,&nbsp;Marcio Sousa da Silva ,&nbsp;Paulo Rógenes Monteiro Pontes ,&nbsp;Roberto Dall’Agnol","doi":"10.1016/j.ijsrc.2025.01.010","DOIUrl":"10.1016/j.ijsrc.2025.01.010","url":null,"abstract":"<div><div>Over the last several decades, extensive changes in land use and land cover (LULC) have caused substantial environmental impacts in the watersheds of southeastern Amazonia, such as the Verde River Watershed (VRW). The effects of anthropogenic activities on soil cover loss rates in the VRW were evaluated to estimate soil loss over time by applying the revised Universal Soil Loss Equation (RUSLE) in a geographic information system (GIS) environment via rainfall erosivity (<em>R</em>), soil erodibility (<em>K</em>), topography (<em>LS</em>), and LULC (<em>CP</em>) data. The VRW experiences strong seasonality, with the most significant <em>R</em> concentrated from January to April, which coincides with a relatively high rainfall index reaching approximately 42% of the annual total. Most of the VRW has gently undulating to flat relief (88.9%) and low <em>LS</em> values (0.02–0.025), but its upper course has a sandy soil texture with high <em>K</em> values (0.02–0.073). Pastureland has replaced forested areas during the past 40 years, dramatically changing the landscape with more significant changes in LULC rates in the upper VRW. Estimates of annual and average soil losses and areas at high and very high risk of erosion increased by more than 200% from 1984 to 2021. In conclusion, deforestation is the main factor influencing erosion patterns and volume in the VRW and has accelerated soil degradation, increasing the risks to human health and the maintenance of tropical rainforests. Additionally, simply stopping deforestation is insufficient to prevent the expansion of areas with high and very high erosion risk. It is crucial to implement reforestation projects to recover forested areas.</div></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 3","pages":"Pages 426-438"},"PeriodicalIF":3.5,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143932135","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":"Grain-size parameters and diatom records as indicators of environmental changes along the southern Brazilian coastal plain","authors":"Cristiane Bahi dos Santos ,&nbsp;Iran Stallivière Corrêa ,&nbsp;Jair Weschenfelder ,&nbsp;Jeffery Robert Stone","doi":"10.1016/j.ijsrc.2025.01.005","DOIUrl":"10.1016/j.ijsrc.2025.01.005","url":null,"abstract":"<div><div>Connections between changes in sediment distribution and diatom species are sensitive to environment-related deposition patterns of fine-grained sediment. A large lagoon in the southernmost Brazilian coastal plain was selected to test the sensitivity of diatoms to sediment changes and their ability to classify depositional environments. Selected grain-size parameters, including mean grain size, skewness, kurtosis, standard deviation, and sand-silt-clay ratios, were evaluated for interpretation. The trigonal diagram shows that most of the lagoon sub-bottom deposits lie in the fine-grained tail. Silt is dominant within the Holocene fluvial-estuarine, estuarine-transitional, and shallow marine deposits. Sand fractions (&gt; 76%) are distributed in the coastal barrier and in a few fluvial-estuarine intervals. Most deposits are polymodal, lying between poorly sorted sediment, indicating a low-energy depositional environment. The results were interpreted as indicated by the Principal Component Analysis (PCA), which revealed resulting shifts in sediment and diatom composition connected to five sedimentary facies controlled by sea-level oscillations. Diatom species recovered from sediment cores have distinctive capacities for living under high marine, freshwater, and terrestrial conditions. Each quadrant of the PCA reflects the adaptation of species to particular depositional conditions during the Late Pleistocene and Holocene. Allochthonous taxa provide valuable ecological information about adjacent environments in the coastal area, offering insight into the paleogeography of the study area. The major advantage of the analytical methods is their applicability in distinguishing different environments involving mixed deposition and transport mechanisms. The sediment deposited on the bottom of a large lagoon provide significant implications not only for sedimentological analysis by improving understanding of high deposition of mud and fine-grained sands but also for predictions of the source-to-sink routes.</div></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 2","pages":"Pages 269-285"},"PeriodicalIF":3.5,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601180","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":"Modeling the hydraulic roughness of a movable flatbed in a sand channel while considering the effects of water temperature","authors":"Junzheng Liu ,&nbsp;Jinliang Zhang ,&nbsp;Zhe Huang ,&nbsp;Haijue Xu ,&nbsp;Yuchuan Bai ,&nbsp;Gang Wang","doi":"10.1016/j.ijsrc.2024.11.004","DOIUrl":"10.1016/j.ijsrc.2024.11.004","url":null,"abstract":"<div><div>The prediction of the flow resistance (usually quantified as the hydraulic roughness) of a movable flatbed is a key issue affecting the calculation accuracy of flood levels in river training projects. Bedload motion on a movable flatbed causes additional energy loss and increases hydraulic roughness. Several theoretical and empirical predictors for characterizing this phenomenon have been proposed, but the accuracy and physical basis of these models should be improved. In this study, the total energy dissipation rate is separated into two components: the energy dissipation rate due to grain drag and the additional energy dissipation rate due to bedload motion. Following the energy dissipation rate balance equation, a new predictor was proposed for movable flatbed flows. The water temperature was empirically coupled with the fluid viscosity and its associated physical variables. A new empirical relation between two dimensionless flow‒sediment combination variables was established to demarcate the various bedform transitions induced by the water temperature. The new predictor was compared with other predictors, and the prediction results were compared to the measured data. The error metric showed that the new predictor provided the highest accuracy, with ∼88.5% of the 826 data points falling within the ±30% error band. The new predictor suggested that the additional drag is nonlinearly proportional to the grain drag, and the scale factor between these two parameters is related to five flow‒sediment variables. In addition, the ability of the new predictor to quantify water temperature effects was examined. The predicted resistance exhibited three change modes with increasing water temperature, and the results suitably agreed with the measurements. The effect of the water temperature on the resistance of a movable flatbed is jointly controlled by the suspension number and roughness Reynolds number. This study provides an effective predictor that can be used by decision makers for modeling the hydraulic roughness of a movable flatbed.</div></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 1","pages":"Pages 31-44"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143196","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":"Morphological properties of two-dimensional and three-dimensional bedforms in open channel flow: A flume experiments study","authors":"Wenhong Cao ,&nbsp;Xu Geng ,&nbsp;Chunjing Liu ,&nbsp;Lingfeng Zhang","doi":"10.1016/j.ijsrc.2024.09.007","DOIUrl":"10.1016/j.ijsrc.2024.09.007","url":null,"abstract":"<div><div>Bedforms are formed by sediment particles under the action of flow, which in turn affect flow and sediment movement. However, the fundamental mechanisms behind the formation and development of bedforms under varying flow conditions, the interconnection between sediment particle movement and bed morphology development, as well as the influence of bedforms on flow and sediment transport, are still not well understood. In the current study, the moveable bed load transport flume experiments under different flow conditions were done, and the development processes of two-dimensional and three-dimensional dunes formed under different flow intensities were simulated. The detailed structure of the bedforms was measured by laser scanning technology, the characteristics of the bedforms were analyzed in detail, and the relations between the formation of the bedforms and the movement of sediment particles are discussed. The results found that the correlation coefficients of the longitudinal profile curve can serve as a quick reference for distinguishing two-dimensional and three-dimensional dunes. When the crestline ratio is used as the criterion for two-dimensional and three-dimensional dunes, the relative amplitude of the dune crestline and the included angle with the flow direction should also be comprehensively considered. The lee side angles of dunes calculated using the triangle generalization method and local section tangent method are compared and show that the values obtained by the former method are only about half of that of the latter. It is also found that the lee side angles of dunes are related to the dune height. The superimposed dunes generally exist in the downstream area of the stoss side of the dunes. The local bed slopes on the stoss side of the dunes show reverse slopes. The superimposed dunes improve the local bed height and further increase the reverse slope degree of the stoss side. A streamwise ridge is an important form located in the upstream area of the dunes stoss side, and they are symmetrically distributed on both sides. Multiple streamwise ridges divide the stoss side of the dunes into relatively independent movement areas, restricting the movement of sediment particles to specific regions. According to the distribution characteristics of bed morphologies, the effects of dunes on sediment particle movement and flow energy consumption are analyzed.</div></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 1","pages":"Pages 15-30"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143195","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}