International Journal of Sediment Research最新文献

{"title":"Inferring sediment deposition trend in data scared wetland impacted by degraded urban catchment","authors":"Bhaswatee Baishya,&nbsp;Arup Kumar Sarma","doi":"10.1016/j.ijsrc.2024.10.007","DOIUrl":"10.1016/j.ijsrc.2024.10.007","url":null,"abstract":"<div><div>The reduction in water retention capacity due to sedimentation in wetlands poses a serious threat to the ecology of this imperative freshwater resource. This also increases the risk of flooding in the river catchment areas that feed these wetlands. Sediments are mostly produced by unplanned development and hillcutting in upstream catchments. Henceforth, it is crucial to understand the trend in sediment deposition to determine management measures. However, measuring sediment deposition in wetlands is challenging. This study investigates a novel and cost-effective approach to discover trends in sediment deposition within wetlands via geospatial techniques and compares their water extents in the Deepor Beel Wetland, a Ramsar site in Assam, India. The water spread areas were assessed via supervised classified Landsat images and the band rationing technique, i.e., the normalized difference pond index (NDPI). This study establishes that sedimentation causes the water level in wetlands to rise, resulting in an increase in the area of water spread. This often suggests that the lean period water volume is increasing, indicating better health of the stream-wetland ecosystem. However, this apparent increase in water volume is actually due to the displacement of water by the sediment that has been deposited on the bed over time. This approach has identified a reduction in the water holding capacity of the wetland to 9.19 million m³ in 18 years by utilizing geospatially derived water spread and elevation data from two years (2003 and 2021) with comparable rainfall. In the absence of recent and past years with comparable precipitation, the proposed method can still be applied by adjusting the apparent increase in volume by considering the difference in the net inflow volume between the two years of interest. The results of sediment transport toward the wetland, as computed by the Soil and Water Assessment Tool (SWAT) model while accounting for the sediment retention rate of the wetland, strongly agree with the proposed approach. The present approach can be extended to similar stream-wetland ecosystems to examine sediment dynamics and help create better management strategies for wetlands and associated catchment conservation and restoration.</div></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 1","pages":"Pages 129-145"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143623","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":"Erosive stability channel factor for Brda River (Poland): A key assessment of the human impact of the catchment changes","authors":"Dawid Aleksander Szatten ,&nbsp;Oleksandr Obodovskyi ,&nbsp;Marta Brzezińska","doi":"10.1016/j.ijsrc.2024.11.002","DOIUrl":"10.1016/j.ijsrc.2024.11.002","url":null,"abstract":"<div><div>The stability of river channels results from the impact of spatially diversified natural characteristics of the catchment, which are additionally intensified by the pressure of human activities. The aim of the current study was the overall assessment of the riverbed stability in the Brda River catchment (Poland) in the two periods 1980–1989 and 1991–2018. The study area is characterized by a high discharge regularity, resulting from the river-lake system in the upper part of the catchment, and strong human pressure caused by the presence of hydrotechnical structures in the middle and lower parts of the catchment. The hydrological, sedimentological, and land cover archival data were used in the current study. Also, in the field campaign, the characteristics of the river channel were delimited. Finally, the erosive stability channel factor is proposed, reflecting the level of pressure on the fluvial system from the catchment. The results show that in the first period, there was a tendency to accumulate sediment on the riverbed, resulting in its instability. However, in the second period, the river channel was stable, and erosion and sedimentation processes did not occur. The links between the stability of the bed of the Brda River, and the temporal and area-related pressures made it possible to identify long-term trends in the degradation of the fluvial environment as a result of human activities and to indicate the directions for sustainable sediment management in the catchment.</div></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 1","pages":"Pages 146-157"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143624","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":"TOC","authors":"","doi":"10.1016/S1001-6279(24)00135-5","DOIUrl":"10.1016/S1001-6279(24)00135-5","url":null,"abstract":"","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 1","pages":"Pages ii-iii"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143740","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":"Experimental investigation into flow resistance of large benthic crab burrows in the Yellow River Delta, China","authors":"Wenbo Zhu ,&nbsp;Yan Lu ,&nbsp;Chengyang Zhou ,&nbsp;Yongjun Lu ,&nbsp;Pan Wu ,&nbsp;Liqin Zuo ,&nbsp;Tingjie Huang ,&nbsp;Huaiqian Xiao","doi":"10.1016/j.ijsrc.2024.11.003","DOIUrl":"10.1016/j.ijsrc.2024.11.003","url":null,"abstract":"<div><div>The current study investigates the impact of burrowing activities by crab species in the tidal flats of the Yellow River Delta in China on the hydraulic resistance characteristics of water flow, particularly the regulatory effect of biological activity on hydraulic parameters. Although there are many models that attempt to describe the resistance to water flow, these models tend to ignore the influence of such things as biological structures, geomorphological features, and artificial constructs in complex natural water bodies, resulting in insufficient predictive accuracy of the resistance coefficients and Manning's roughness coefficients. In this paper, a new theoretical model is developed to achieve the construction of a model for predicting the hydrodynamic resistance characteristics of crab-hole regions affected by water flow by introducing a cross-sectional area correction coefficient to improve the accuracy of the calculation. The experimental results show that there is a significant positive correlation between the drag coefficient, and the hydraulic radius, and cave density, and a negative correlation with the Reynolds number, and the modification for the sidewall and bed effect greatly improves the representativeness of the measured data. In addition, a new theoretical model is proposed to improve the prediction of drag and Manning's roughness coefficient, and the prediction results are in good agreement with the measured data. The improved drag coefficient calculation model proposed in this paper improves the applicability to the research object and helps to establish a more accurate hydrodynamic model.</div></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 1","pages":"Pages 182-191"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143144179","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":"Flow patterns in shallow rectangular reservoirs with open channel inlet or pipe flow inlet at various depths: An experimental study","authors":"El Mehdi Chagdali ,&nbsp;Kamal El Kadi Abderrezzak ,&nbsp;Sébastien Erpicum ,&nbsp;Cédric Goeury ,&nbsp;Matthieu Secher ,&nbsp;Benjamin Dewals","doi":"10.1016/j.ijsrc.2025.01.004","DOIUrl":"10.1016/j.ijsrc.2025.01.004","url":null,"abstract":"<div><div>This study experimentally assesses the influence of varying the inlet boundary condition on the flow patterns in rectangular shallow reservoirs. Two types of inlet boundary conditions were compared: a free surface inlet channel, and a pressurized circular inlet jet positioned at three different elevations over the flow depth (centroid of the inlet jet situated at 25%, 50%, or 75% of the flow depth). The outlet boundary condition was a free surface channel in all cases. Twenty-two experiments were done with two distinct reservoir lengths (length-to-width ratios of 1.1 and 2.0) and three hydraulic boundary conditions (Froude numbers of 0.14, 0.16, and 0.21). Velocity fields were measured with Large-Scale Particle Image Velocimetry (LSPIV) at the surface, and with an Acoustic Doppler Velocity Profiler (ADVP) at several cross sections. The flow patterns are greatly influenced by the inlet boundary condition and the reservoir geometry, but to a lesser extent by the hydraulic boundary condition. For an inlet circular jet located near the reservoir bottom, an unstable flow type, changing over time in a chaotic manner, was observed regardless of the reservoir length and of the inlet flow rate. The same type of unstable flow pattern was observed for a relatively long reservoir and the lowest tested flow rate, irrespective of the vertical positioning of the inlet jet. In all other tested configurations, a steady reattached jet was found in the reservoir equipped with a pressurized inlet jet. In addition to providing new knowledge on flow patterns in shallow reservoirs with an inlet jet, the experimental data presented here will prove valuable for evaluating flow computational models.</div></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 2","pages":"Pages 209-221"},"PeriodicalIF":3.5,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601190","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":"On the parameters of common settling velocity models for porous sediment aggregates","authors":"Alexander Metelkin ,&nbsp;Bernhard Vowinckel","doi":"10.1016/j.ijsrc.2025.01.002","DOIUrl":"10.1016/j.ijsrc.2025.01.002","url":null,"abstract":"<div><div>The settling behavior of sediment aggregates is a critical factor influencing the transport of fine-grained sediment in riverine and marine environments. Due to the small size and fragile structure of cohesive sediment aggregates, direct measurement of their porosity and permeability is challenging. While porosity often is estimated using settling velocity relations, permeability is frequently overlooked. The current study examines the impact of considering non-negligible permeability on the properties of flocs. Aggregate properties are compared by calibrating experimental data to two settling models in a dilute regime: one assumes a fractal structure of aggregates and neglects permeability, while the other assumes constant porosity and permeability. The current results demonstrate that both models describe the experimental data of highly porous aggregates with similar accuracy. Aggregate dynamics are further investigated in more complex flow conditions using numerical simulations applying a volume penalization method to geometrically resolve flocs. The behavior of permeable and impermeable flocs is compared in dense suspension regimes and during dilute settling in density-stratified environments. The current findings reveal that permeability significantly influences settling dynamics in complex scenarios and should be considered when determining aggregate properties.</div></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 3","pages":"Pages 412-425"},"PeriodicalIF":3.5,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143932133","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":"Assessment of infiltration and erosion rates in Mediterranean reservoirs’ catchments through rainfall simulation","authors":"Jorge Mongil-Manso ,&nbsp;Carmen Patino-Alonso ,&nbsp;José Nespereira-Jato ,&nbsp;José-Luis Molina ,&nbsp;Fernando Espejo ,&nbsp;Teresa Diez-Castro ,&nbsp;Santiago Zazo ,&nbsp;Fernando Silla","doi":"10.1016/j.ijsrc.2025.01.003","DOIUrl":"10.1016/j.ijsrc.2025.01.003","url":null,"abstract":"<div><div>The land use and vegetation type of a reservoir's catchment substantially affect the hydrological processes of soil infiltration and runoff. They also act as drivers or constraints for erosive processes. All the previous processes influence the amount of water and sediment that reach the reservoir and affect its functioning. This study is mainly aimed to improve the knowledge of these processes in southeastern Spain by means of experimental rainfall simulation and multivariate statistical analysis. The results show that the mean infiltration rate is 1.06 times higher in forests than in shrublands and 1.07 times higher than in olive crops (280.52, 265.02, and 262.08 mm/h, respectively), with mean surface runoff consequently 1.57 times lower in forests than in shrublands and 2.41 times lower than in olive crops (20.81, 32.58, and 50.24 mm/h). Likewise, the sediment concentration in the runs is 5.48 times higher in olive groves (518.43 g/L) than in forests (94.61 g/L) and 2.94 times higher than in shrublands (176.48 g/L). Soil properties and parent material might have a more important effect on the studied variables than the different vegetation types. Furthermore, root systems and the use of tillage on crops could favor infiltration, which would tend to equalize the values of the variables analyzed; but this needs to be demonstrated in future research. The results obtained are of interest for vegetation cover and soils management in reservoirs’ catchments in Mediterranean areas. Furthermore, the current research provides an opportunity to study more specifically the origin of the sediment that reaches the reservoirs, beyond sheet and rill erosion.</div></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 3","pages":"Pages 466-475"},"PeriodicalIF":3.5,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143932147","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":"Mechanisms of debris-flow volume growth by eroding highly-consolidated landslide dams","authors":"Pu Li ,&nbsp;Kaiheng Hu ,&nbsp;Lan Ning","doi":"10.1016/j.ijsrc.2025.01.001","DOIUrl":"10.1016/j.ijsrc.2025.01.001","url":null,"abstract":"<div><div>Erosion of landslide dams by a natural debris flow as it travels down a sloping channel can dramatically increase flow size and destructive potential. Most research on the erosion of landslide dams focuses on those newly formed due to recent earthquakes or heavy rainfall. In this study, the debris-flow erosion of so-called highly-consolidated landslide dams (HCLDs) that are typically remnants of ancient earthquakes or rainfall events is investigated by using satellite image interpretation, field measurements, and mechanism analysis. Several HCLDs were identified in two catchments in Zhouqu and Ganluo counties in Gansu and Sichuan province, China, where two high-magnitude debris-flow events occurred in 2010 and 2020, respectively. The existence of HCLDs resulting in wide and narrow reaches alternatively alters the boundary conditions of debris flows and significantly affects the flow erosion and deposition processes. It is observed that the flow discharge increased notably after passing through or during narrowing sections of the channels and the estimated discharge amplification coefficients are approximately 3.3 and 2.7, respectively. The two cases demonstrate that rapid erosion through narrowing sections and subsequent headward erosion play a key role in the debris-flow volume growth by eroding HCLDs. Additionally, other mechanisms such as deposition of erodible material upstream of the dam, localized vortexes in converging and diverging sections, and collisional stresses within the debris flows can further contribute to the erosion of HCLDs and the amplification of debris-flow magnitude. Recognizing these hazardous effects of HCLDs on increasing debris-flow volume is helpful for making non-structural and engineering countermeasures against similar debris flow disasters.</div></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 2","pages":"Pages 222-240"},"PeriodicalIF":3.5,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601177","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":"Submerged macrophyte-dominated systems fed by karst groundwater produce a significant autochthonous carbon sink in sediment: A mesocosm experiment study","authors":"Dong Li ,&nbsp;Min Zhao ,&nbsp;Hailong Zhang ,&nbsp;Zaihua Liu ,&nbsp;Xuejun He ,&nbsp;Qian Bao ,&nbsp;Haibo He ,&nbsp;Meixun Zhao","doi":"10.1016/j.ijsrc.2024.12.006","DOIUrl":"10.1016/j.ijsrc.2024.12.006","url":null,"abstract":"<div><div>The inland water portion of the carbon cycle is an essential component of the global carbon cycle and is a promising direction to seek missing carbon sinks. Inland waters fix inorganic carbon to form autochthonous organic carbon (Auto-OC) and accept laterally transferred terrestrial OC. Calculating the carbon sink flux of inland water requires a quantitative estimation of the proportion of the aforementioned processes. In the current study, <em>n</em>-alkanes are used as biomarkers and the dual carbon isotope method (Bayesian mixing model) is applied to estimate the proportions of Auto-OC in the sediment of a simulation site comprising five shallow submerged macrophyte-dominated subsystems. The study results showed that a high proportion of Auto-OC was present in all sediment, regardless of the season or subsystem. However, the proportions were higher in the warm-humid season than in the cold-dry season. Results from a correlation analysis showed that temperature-controlled seasonal variations in the photosynthetic strength of aquatic organisms are the most likely cause of this difference. The average deposition rates of total organic carbon and Auto-OC were high (66.7 and 58.2 g C/m²/yr, respectively). Throughout the year, the weighted average percentage of Auto-OC ranged from 76% to 90%, with a mean value of 86% in the five aquatic subsystems. Establishing and maintaining submerged macrophyte-dominated systems have a potential of decreasing carbon dioxide (CO₂) evasion and sequestrating more carbon (C) in headwaters. Working for clear submerged macrophyte-dominated lakes is beneficial for increasing carbon sinks.</div></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 3","pages":"Pages 400-411"},"PeriodicalIF":3.5,"publicationDate":"2024-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143932225","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":"Impact of different types of sediment-filled check dam systems on runoff erosion dynamics in a Loess Plateau watershed","authors":"Ganggang Ke,&nbsp;Shengdong Cheng,&nbsp;Zhanbin Li,&nbsp;Tian Wang,&nbsp;Heng Wu,&nbsp;Yunzhe Zhen","doi":"10.1016/j.ijsrc.2024.12.007","DOIUrl":"10.1016/j.ijsrc.2024.12.007","url":null,"abstract":"<div><div>Check dams, as one of the most representative soil and water conservation measures in the Loess Plateau region, primarily impact hydrological and hydrodynamic processes by regulating flows of water and sediment. Constrained by reservoir capacity, sediment accumulation within check dam systems affects their ability to intercept water and sediment. However, there has been limited research on the regulatory role of sediment-filled check dams on watershed hydrodynamics. This study focused on small watersheds in loess hilly gully areas and applied the MIKE SHE model to simulate hydrodynamic processes under different scenarios of filled check dam systems. The regulatory effect of different filled check dam system types on watershed hydrodynamics in the study area was analyzed. The results indicate that after sedimentation in various types of check dams, the peak flow can be reduced by 59.68%–68.66%, the flood duration can be extended by 42.74%–375.81%, and the runoff erosion power can be reduced by 62.92%–85.35%. The reduction in flood volume diminishes with increasing sedimentation, reaching a minimum of 2.42%. Moreover, there are varying degrees of reduction in runoff erosion dynamics in the main channels. These findings provide theoretical support for identifying the regulatory potential of sediment-filled check dam systems on hydrodynamic processes in small watersheds.</div></div>","PeriodicalId":50290,"journal":{"name":"International Journal of Sediment Research","volume":"40 2","pages":"Pages 322-332"},"PeriodicalIF":3.5,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601183","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}