Aeolian Research最新文献_第7页

Carcinogenic and non-carcinogenic health risks of heavy metals in windborne sediments from a residential area (Case study: Tabas, Iran) 居民区风载沉积物中重金属的致癌和非致癌健康风险（案例研究：伊朗塔巴斯）

IF 3.1 3区地球科学

Aeolian Research Pub Date : 2024-12-01 Epub Date: 2024-07-06 DOI: 10.1016/j.aeolia.2024.100938

Hojat Emami , Mahsa Memarzadeh , Fateme Naghizade Asl

{"title":"Carcinogenic and non-carcinogenic health risks of heavy metals in windborne sediments from a residential area (Case study: Tabas, Iran)","authors":"Hojat Emami , Mahsa Memarzadeh , Fateme Naghizade Asl","doi":"10.1016/j.aeolia.2024.100938","DOIUrl":"https://doi.org/10.1016/j.aeolia.2024.100938","url":null,"abstract":"<div><p>Dust particles are considered as a very important way of soil contamination by heavy metals. Therefore, this study was conducted to evaluate the concentration of heavy metals and their health risk in windborne sediments. For this purpose, sediment traps were installed in five dominant wind directions including north, northeast, northwest, west, and southwest, and center of Tabas city (Iran) to collect the suspended sediments in the air. Sediment sampling was conducted monthly from January to December 2021. The concentrations of heavy metals were measured using atomic adsorption method followed by extraction by aqua regia, and the carcinogenic and non-carcinogenic health risks of heavy metals for children and adults were evaluated during different months of the year. According to the results, the maximum and minimum amounts of windborne sediments found in northwest (85.66 gm<sup>−2</sup>) and west (29.3 gm<sup>−2</sup>), respectively. Monthly variations in windborne sediments discharge also revealed that the maximum amounts of windborne sediments occurred in September and November 2021 from northeast (125 and 117 mgkg<sup>−1</sup>, respectively). The maximum concentrations of cadmium (0.82 mg/kg) were found in the west of Tabas, while those of lead (192.72 mg/kg), and nickel (227.34 mg/kg) were obtained in the city center. In addition, the highest carcinogenic and non-carcinogenic risks belonged to nickel and the lowest risks were obtained for lead. Also, the carcinogenic risk of cadmium was higher than lead but lower than nickel. In general, the carcinogenic and non-carcinogenic risks of the studied heavy metals were low (less than 1).</p></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"70 ","pages":"Article 100938"},"PeriodicalIF":3.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141595120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Implications of gravel content on aerodynamic parameters, sand flux, erosion and accumulation during deflation processes over Gobi 戈壁上空放气过程中砾石含量对空气动力参数、沙通量、侵蚀和堆积的影响

IF 3.1 3区地球科学

Aeolian Research Pub Date : 2024-12-01 Epub Date: 2024-11-27 DOI: 10.1016/j.aeolia.2024.100946

Hongxue Zhang , Kecun Zhang , Zhishan An , Chengjie Xue , Jiapeng Pan , Lihai Tan

{"title":"Implications of gravel content on aerodynamic parameters, sand flux, erosion and accumulation during deflation processes over Gobi","authors":"Hongxue Zhang , Kecun Zhang , Zhishan An , Chengjie Xue , Jiapeng Pan , Lihai Tan","doi":"10.1016/j.aeolia.2024.100946","DOIUrl":"10.1016/j.aeolia.2024.100946","url":null,"abstract":"<div><div>The deflationary process of the Gobi Desert contributes to the release of atmospheric dust and may lead to sand hazards. This process is influenced by the presence of gravel on the desert surface. While extensive research has been conducted on the impact of gravel coverage on sand transport, there is lack of studies examining the wind-sand characteristics across varying gravel content in mixed beds of sand and gravel. In a series of wind tunnel experiments, aerodynamic parameters, sand flux, and both erosion and accumulation amount were measured across beds with differing gravel contents. The findings revealed that the maximum roughness and friction velocity were observed at a 35 % gravel content. As gravel content increased, both the sand flux density (<em>q</em>) and the total sand flux within 30 cm (<em>q<sub>t30</sub></em>) declined, whereas the saltation height (<em>h<sub>50</sub></em>) increased. Both the deflation rate and the sediment entrainment rate showed a decrease as the gravel content increased from 15 % to 55 %. Although particle flux density exhibited significant fluctuations, no clear correlation with gravel content was found. The deflation process is accompanied by distinct stripes of sand accumulation at 15 % and 25 % gravel contents, owing to the saturated sand flow characterized by a high sand entrainment rate and particle flux density. In contrast, a gravel content of 55 % exhibited stability with only minor deflation, corresponding to a low sand entrainment rate and particle flux density, thus approaching an equilibrium state. This observation indicates that increasing gravel content effectively slows the deflation rate.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"70 ","pages":"Article 100946"},"PeriodicalIF":3.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Aeolian sand cover on a granite peninsula (Hammeren, Bornholm, Baltic Sea) formed in three episodes during the past 11,600 years 花岗岩半岛（波罗的海，博恩霍尔姆岛，哈默伦）上的风化沙覆盖层在过去 11 600 年间分三次形成

IF 3.1 3区地球科学

Aeolian Research Pub Date : 2024-12-01 Epub Date: 2024-10-16 DOI: 10.1016/j.aeolia.2024.100944

Lars B. Clemmensen , Aslaug C. Glad , Giulia Cossu , Vincenzo Pascucci

{"title":"Aeolian sand cover on a granite peninsula (Hammeren, Bornholm, Baltic Sea) formed in three episodes during the past 11,600 years","authors":"Lars B. Clemmensen , Aslaug C. Glad , Giulia Cossu , Vincenzo Pascucci","doi":"10.1016/j.aeolia.2024.100944","DOIUrl":"10.1016/j.aeolia.2024.100944","url":null,"abstract":"<div><div>Aeolian sand covers a significant part of the granite peninsula Hammeren on northernmost Bornholm in the Baltic Sea. The coastline of Hammeren is rocky and apart from one relative wide and sandy pocket beach at the east coast only few, small and gravelly pocket beaches exist. The aeolian deposits form three sand covers that stretch inland from the east and northwestern facing coasts of Hammeren. The largest sand cover forms a rising sand plain that cover the granitic landscape up to 700 m inland and reaches up to 60 m above sea level. Historical sources mention aeolian sand movement around CE 1775 in the middle of the Little Ice Age, but until this study no absolute age control has been available to confirm these observations. Luminescence dating of selected sample sites indicates that aeolian sand movement took place in three episodes. The first episode was in the last part of the Younger Dryas at about 11,500 BP, the second episode was in the Danish Late Bronze Age at about 2700 BP, and the youngest episode was indeed during the Little Ice Age around 200 BP (CE 1750). These episodes with aeolian activity all fall during relatively cold climatic intervals and add support to previous studies indicating a link between cold climates an increased storminess in Northwest Europe including the southern Baltic Sea region.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"70 ","pages":"Article 100944"},"PeriodicalIF":3.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142442291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Automatic identification of saltating tracks driven by strong wind in high-speed video using multiple statistical quantities of instant particle velocity 利用粒子瞬时速度的多个统计量自动识别高速视频中由强风驱动的盐渍化轨迹

IF 3.1 3区地球科学

Aeolian Research Pub Date : 2024-12-01 Epub Date: 2024-09-21 DOI: 10.1016/j.aeolia.2024.100940

Hongji Zhou , Fanmin Mei , Chuan Lin , Mengjie Pu , Aiguo Xi , Jinguang Chen , Jin Su , Zhibao Dong

{"title":"Automatic identification of saltating tracks driven by strong wind in high-speed video using multiple statistical quantities of instant particle velocity","authors":"Hongji Zhou , Fanmin Mei , Chuan Lin , Mengjie Pu , Aiguo Xi , Jinguang Chen , Jin Su , Zhibao Dong","doi":"10.1016/j.aeolia.2024.100940","DOIUrl":"10.1016/j.aeolia.2024.100940","url":null,"abstract":"<div><p>The evolution of saltating tracks driven by strong wind remains unknown due to the low accuracy or recall rates of saltating particle tracking algorithms (SPTs). Manual identification of saltating tracks becomes a primary bottleneck because of low efficiency, restricting the development of new SPTs with high accuracy. Herein, we proposed an optimized tree model for automatically identifying saltating tracks in the high-speed video under strong wind through establishing the dataset with multiple statistical quantities of instant saltating velocity (<em>MSQV</em>) and the workflow embracing the Tree-structured Parzen Estimator (TPE). The optimized Categorical Boosting model by the D3 dataset (CatBoost-D3) could be considered the best classifier among the tree models, owning the higher accuracy (0.9352), precision (0.9348), recall (0.9352), F1-score (0.9350) and area under an receiver operating characteristics curve (AUC, 0.9730), and lower time cost. The best performances were associated with the ensemble effect of critical and secondary features, distinct from the previous finding which revealed only the effect of critical features on enhancing AUC value. Additionally, one observed that the present model was comparable to other optimized tree model by the dataset with double-class and outperformed the other tree model by the dataset with multi-class. The present work offers a new avenue for identifying hop trajectories and tracking sand particle flow via machine learning in the future, and a new channel for reunderstanding the relationship between midair collision and saltation under strong wind through automatic identification of saltating tracks.</p></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"70 ","pages":"Article 100940"},"PeriodicalIF":3.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142271896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Transport and deposition of microplastics and microrubbers during a dust storm (Sarakhs, northeast Iran) 沙尘暴期间微塑料和微橡胶的迁移和沉积（伊朗东北部萨拉赫斯）

IF 3.1 3区地球科学

Aeolian Research Pub Date : 2024-12-01 Epub Date: 2024-09-30 DOI: 10.1016/j.aeolia.2024.100942

Sajjad Abbasi , Neda Hashemi , Nafiseh Khodabakhshloo , Monireh Mina , Mohammad Reza Yousefi , Andrew Turner

{"title":"Transport and deposition of microplastics and microrubbers during a dust storm (Sarakhs, northeast Iran)","authors":"Sajjad Abbasi , Neda Hashemi , Nafiseh Khodabakhshloo , Monireh Mina , Mohammad Reza Yousefi , Andrew Turner","doi":"10.1016/j.aeolia.2024.100942","DOIUrl":"10.1016/j.aeolia.2024.100942","url":null,"abstract":"<div><div>Dust storms are important vehicles for the erosion and translocation of geogenic material in arid and semi-arid climates but little is known about their role in transporting microplastics (MPs). In this study, local soils (<em>n</em> = 20) and dusts deposited from a storm (<em>n</em> = 41) have been sampled from a remote region of northeastern Iran (Sarakhs) and the quantities and characteristics of MPs and microrubbers (MRs) determined using established techniques. In dusts, MPs and MRs were detected in 33 and 17 cases, respectively, with respective median and maximum concentrations of 0.48 and 23.0 MP g<sup>−1</sup> and 0.50 and 6.48 MR g<sup>−1</sup> and depositional fluxes of up to about 12 MP m<sup>−2</sup> h<sup>−1</sup>. In soils, MPs and MRs were detected in ten and eight cases, respectively, with respective median and maximum concentrations of 0.25 and 1.90 MP g<sup>−1</sup> and 3.27 and 14.3 MR g<sup>−1</sup>. Overall, the ratio of MPs in dusts to soils relative to MRs in dusts to soils was about 20, reflecting the greater mobility of the former type of particle. This can be attributed to the ready suspension and more favourable aerodynamic properties of fibrous MPs compared with fragmented MRs. A comparison of MPs in dusts and soils suggests a preferential long-range transport of fibres with certain characteristics (e.g., long, red and constructed of polypropylene), with HYSPLIT back trajectory modelling suggesting secondary (e.g., soil) sources to the south and southwest. Dust storms are important regional transporters of atmospheric MPs and MRs whose role is predicted to increase as desertification and the demands for potable water and plastics rise.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"70 ","pages":"Article 100942"},"PeriodicalIF":3.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142359010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evolution of Weichselian aeolian strata on a coarse-grained substrate in a rugged piedmont topography: A case study from the foothills of the eastern Sudetes Mts., Czechia 崎岖的山麓地形中粗粒基质上的魏希塞尔风化层的演变：捷克苏台德山脉东麓案例研究

IF 3.3 3区地球科学

Aeolian Research Pub Date : 2024-09-01 Epub Date: 2024-05-04 DOI: 10.1016/j.aeolia.2024.100927

Jakub Holuša , Martin Hanáček , Daniel Nývlt , Barbara Woronko , Radim Stuchlík

{"title":"Evolution of Weichselian aeolian strata on a coarse-grained substrate in a rugged piedmont topography: A case study from the foothills of the eastern Sudetes Mts., Czechia","authors":"Jakub Holuša , Martin Hanáček , Daniel Nývlt , Barbara Woronko , Radim Stuchlík","doi":"10.1016/j.aeolia.2024.100927","DOIUrl":"https://doi.org/10.1016/j.aeolia.2024.100927","url":null,"abstract":"<div><p>The southern margins of the northern European loess belt on the foothills of Eastern Sudetes Mountains are less explored sedimentation zones. This study provides new data about the development of aeolian silty-sandy sediments overlying the glaciofluvial succession on the rugged topography near the village of Kolnovice. The Kolnovice sand quarry (360 × 200 m), which lies at the margin of the upland plateau, is the only active-mined outcrop on the foothills of the Eastern Sudetes and is large enough to study Pleistocene (peri-)glacial sediments. To examine the origin of these sediments, we applied lithofacies analysis (both macro-description of outcrop walls and micromorphological study of thin sections) and surface analysis of quartz grains. Periglacial structures have been identified within the sediments, allowing us to further interpret the post-sedimentary evolution of the sedimentary succession. The studied sediments resulted from colluvial redeposition of aeolian sediments, which was controlled particularly by the topography, glaciofluvial substrate, and climatic conditions. The underlying glaciofluvial sediments are the most crucial source of the studied sediments, although the fine-grained material could have been transported from more distant areas.</p></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"67 ","pages":"Article 100927"},"PeriodicalIF":3.3,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140825643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The indicative significance of grain size end-members and quartz surface microtextural features in Beglitsa loess sections at the Sea of Azov 亚速海 Beglitsa 黄土剖面中粒度末级分子和石英表面微纹理特征的指示意义

IF 3.3 3区地球科学

Aeolian Research Pub Date : 2024-09-01 Epub Date: 2024-03-21 DOI: 10.1016/j.aeolia.2024.100921

Ye Liang , Taibao Yang , Lindong Wang , Peihong Shi , G.G. Matishovc , A.A. Velichko , Biao Zeng

{"title":"The indicative significance of grain size end-members and quartz surface microtextural features in Beglitsa loess sections at the Sea of Azov","authors":"Ye Liang , Taibao Yang , Lindong Wang , Peihong Shi , G.G. Matishovc , A.A. Velichko , Biao Zeng","doi":"10.1016/j.aeolia.2024.100921","DOIUrl":"https://doi.org/10.1016/j.aeolia.2024.100921","url":null,"abstract":"<div><p>The loess accumulation processes in the Azov Sea region leaves a record of atmospheric circulation trends in southern Russia, which can be used to explore aeolian dynamics and atmospheric circulation evolution. However, the historical aeolian transportation and accumulation processes of the loess deposits in this region remain controversial, which limits our understanding of aeolian dust dynamics. In the present study, based on grain size analysis and scanning electron microscopy imaging, grain size end-member and microtextural characteristics of loess sediments in the Beglitsa section of the Sea of Azov were studied to reveal their sedimentary environments and processes. According to the results, the Beglitsa section exhibits typical characteristics of aeolian sediment. EM analysis revealed that the Sea of Azov loess is composed of materials from both distant and proximal sources transported by high-altitude westerly and mesoscale regional winds, respectively. Particle shape and morphology indicated that the Azov loess materials have experienced wind and flow action. The application of the two methods revealed that the formation of the Azov loess is a complex process from source to sink. It results from the combined effects of high-altitude westerly winds, low-altitude local wind systems, and near-surface air flow in the course of development, which is also influenced by sea-level rise and fall. The results of the present study lay a foundation for the interpretation of historical aeolian dynamics and environmental significance of the Azov loess.</p></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"67 ","pages":"Article 100921"},"PeriodicalIF":3.3,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140180727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An explainable integrated machine learning model for mapping soil erosion by wind and water in a catchment with three desiccated lakes 用于绘制有三个干涸湖泊的集水区风蚀和水蚀土壤侵蚀图的可解释综合机器学习模型

IF 3.3 3区地球科学

Aeolian Research Pub Date : 2024-09-01 Epub Date: 2024-04-27 DOI: 10.1016/j.aeolia.2024.100924

Hamid Gholami , Mehdi Jalali , Marzieh Rezaei , Aliakbar Mohamadifar , Yougui Song , Yue Li , Yanping Wang , Baicheng Niu , Ebrahim Omidvar , Dimitris G. Kaskaoutis

{"title":"An explainable integrated machine learning model for mapping soil erosion by wind and water in a catchment with three desiccated lakes","authors":"Hamid Gholami , Mehdi Jalali , Marzieh Rezaei , Aliakbar Mohamadifar , Yougui Song , Yue Li , Yanping Wang , Baicheng Niu , Ebrahim Omidvar , Dimitris G. Kaskaoutis","doi":"10.1016/j.aeolia.2024.100924","DOIUrl":"https://doi.org/10.1016/j.aeolia.2024.100924","url":null,"abstract":"<div><p>Soil erosion by water and wind is a critical challenge for sustainable management of catchments in drylands and accurate spatial information can help in mitigation of its destructive consequences. Here, seven machine learning (ML) models were applied to map simultaneously the water and wind erosions in the Bakhtegan catchment, south Iran, with three dried lakes in its southern part and three dams established in upstream parts of the lakes. The analysis identified 10 and 11 effective variables controlling water and wind erosions, among 20 and 17 potential variables, respectively, via the MARS feature selection algorithm. According to the most accurate ML models (artificial neural network for water erosion, and Cubist for wind erosion), an integrated model was developed to map soil erosion by water and wind simultaneously. Permutation feature importance (PFI) and Shapley additive exPlanation (SHAP) interpretation techniques were employed to explain the model outputs, revealing that 19.7 % of the total area belonged to high and very high susceptibility classes to soil erosion by water and wind. The PFI plot revealed that the slope and wind speed were the most influencing factors for water and wind erosion, respectively. According to SHAP decision plot, slope had the highest contribution on the predictive water erosion model’s output, whereas vegetation cover exhibited the highest contribution on the predictive wind erosion model’s output. Due to climate change and intensified drought during the recent years, as well as due to construction of dams upstream of the lakes, the southern part of the study area was converted to a source of sand and dust storms. The hotspots with severe water erosion are distributed all over the study area, rendering it quite vulnerable to adverse climate change projections.</p></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"67 ","pages":"Article 100924"},"PeriodicalIF":3.3,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140807020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dune behavior in the Source Area of the Yellow River under climate changes observed from various remote sensing datasets 各种遥感数据集观测到的气候变化下黄河源区的沙丘行为

IF 3.3 3区地球科学

Aeolian Research Pub Date : 2024-09-01 Epub Date: 2024-05-08 DOI: 10.1016/j.aeolia.2024.100928

Lukas Dörwald , Frank Lehmkuhl , Lucie Delobel , Deguo Zhang , Xiaoping Yang , Georg Stauch

{"title":"Dune behavior in the Source Area of the Yellow River under climate changes observed from various remote sensing datasets","authors":"Lukas Dörwald , Frank Lehmkuhl , Lucie Delobel , Deguo Zhang , Xiaoping Yang , Georg Stauch","doi":"10.1016/j.aeolia.2024.100928","DOIUrl":"https://doi.org/10.1016/j.aeolia.2024.100928","url":null,"abstract":"<div><p>Sand dunes are a landscape feature with a quick response time to climate change and human influences (e.g. grazing, greening projects, and fixation structures). Their migration rates and their development can help to gather information about changing environmental conditions over time. The Source Area of the Yellow River (SAYR), located upon the Tibetan Plateau, is highly complex with topographical, hydrological, and climatological influences on active dunes, making it a good study area for these interactions. Based on remote sensing datasets, spanning the last 54 years, 415 dunes were mapped for migration rate calculations. Further, climate data from ERA-5 reanalysis and a local climate station was used to assess their changes within a changing climate. Generally, dune migration rates are rather slow with an average of 3.62 m y<sup>-1</sup>. In accordance, the averaged resultant drift potential (RDP) values are lower than 10 m3/s<sup>−3</sup>(−|-). Further, we assessed the density development of the main active barchan dune field in direct premise of the Yellow River. Throughout the past 54 years, we observed the emergence of more than 5 new barchans per square kilometer. This increase is likely attributed to higher sand flux from the Yellow River, which has resulted from increased discharge due to declining snowfall and rising precipitation levels.</p></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"67 ","pages":"Article 100928"},"PeriodicalIF":3.3,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1875963724000399/pdfft?md5=b0eb8f186bbcaf6e30d7b3c9e4eb9b24&pid=1-s2.0-S1875963724000399-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140880348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of crop rotation, irrigation, fertilization, and tillage on the aggregate property and soil wind erosion potential in the floodplain of the Yellow River 轮作、灌溉、施肥和耕作对黄河冲积平原集料性质和土壤风蚀潜力的影响

IF 3.3 3区地球科学

Aeolian Research Pub Date : 2024-09-01 Epub Date: 2024-04-25 DOI: 10.1016/j.aeolia.2024.100925

Huawei Pi , Xiuli Zhang , Sisi Li , Nicholas P. Webb

{"title":"Influence of crop rotation, irrigation, fertilization, and tillage on the aggregate property and soil wind erosion potential in the floodplain of the Yellow River","authors":"Huawei Pi , Xiuli Zhang , Sisi Li , Nicholas P. Webb","doi":"10.1016/j.aeolia.2024.100925","DOIUrl":"https://doi.org/10.1016/j.aeolia.2024.100925","url":null,"abstract":"<div><p>The floodplain of the Yellow River (FPYR) is threatened by severe soil erosion. Soils are often susceptible to wind erosion owing to their coarse-textures and weak aggregation, yet studies are yet to describe the ability of soils to resist wind erosion in this region. Accordingly, this study aimed to quantify how soil wind erosion potential is affected by soil aggregate properties, such as dry aggregate geometric mean diameter (GMD), aggregate geometric standard deviation (GSD), aggregate stability, and soil bulk density, and to assess the effects of soil type, crop rotation, irrigation, fertilization, and tillage treatments on these aggregate properties in the main wind erosion area across the FPYR. Significant differences in GMD and aggregate stability were found between crop rotation treatments, whereas crop rotation marginally affected the soil bulk density. Further, the impact of management practices on aggregate properties differed for each soil type. The soil aggregate erodible fraction (EF) in the FPYR ranged from 1.14 to 82.73% across sites, with a mean of 26.14% across soil types and management practices, which was lower than that previously reported in other wind erosion regions. We incorporated these measured EFs into the Revised Wind Erosion Equation (RWEQ) to evaluate the wind erosion risk of the FPYR. The results indicated that the central FPYR was more susceptible to wind erosion than the other regions, although the total wind erosion potential in the FPYR was small. Adoption of soil conservation practices could help minimize wind erosion and improve atmospheric quality in the region.</p></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"67 ","pages":"Article 100925"},"PeriodicalIF":3.3,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140644361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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