Journal of environmental quality最新文献_第10页

Response of soil microbial glycoside hydrolase family 6 cellulolytic population to lignocellulosic biochar reveals biochar stability toward microbial degradation 土壤微生物糖苷水解酶家族 6 纤维素分解种群对木质纤维素生物碳的反应揭示了生物碳对微生物降解的稳定性。

IF 2.2 4区环境科学与生态学

Journal of environmental quality Pub Date : 2024-06-05 DOI: 10.1002/jeq2.20588

Muhammad Farid Azlan Halmi, Khanom Simarani

{"title":"Response of soil microbial glycoside hydrolase family 6 cellulolytic population to lignocellulosic biochar reveals biochar stability toward microbial degradation","authors":"Muhammad Farid Azlan Halmi, Khanom Simarani","doi":"10.1002/jeq2.20588","DOIUrl":"10.1002/jeq2.20588","url":null,"abstract":"Biochar produced from lignocellulosic biomass offers an opportunity to recycle waste into a valuable soil amendment. The application of biochar has been proposed to mitigate climate change by sequestering carbon in the soil. However, the field impact of biochar treatment on the cellulolytic microbial populations involved in the earlier steps of cellulose degradation is poorly understood. A field trial spanning three consecutive crop cycles of Zea mays was conducted in a degraded tropical Ultisol of Peninsular Malaysia. The soil was amended with two contrasting biochar made from oil palm kernel shells (pyrolyzed at 400°C) and rice husks (gasified at 800°C) with or without fertilizer supplementation. Soil samples were taken at each harvesting stage and analyzed for total organic carbon, labile active organic carbon, total cellulase, and β-glucosidase. Microbial glycoside hydrolase family 6 (GH6) cellulase genes and transcripts, involved in the early steps of cellulose degradation, were quantified from the extracted soil deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), respectively. Total organic carbon, labile active organic carbon, and β-glucosidase activity were significantly increased, while no effect on total cellulase activity was found. Both biochars stimulated the total population (DNA-derived) abundance of soil microorganisms harboring the GH6 cellulase genes. The biochar amendment did not affect the active population (RNA-derived) of the GH6 cellulolytic community, showing no significant changes in transcript expression. This indirectly corroborates the role of biochar as a potential carbon sequester in the soil.","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"53 4","pages":"546-551"},"PeriodicalIF":2.2,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141261696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 0

Complex hydrology and variability of nitrogen sources in a karst watershed 岩溶流域的复杂水文和氮源变化。

IF 2.2 4区环境科学与生态学

Journal of environmental quality Pub Date : 2024-06-02 DOI: 10.1002/jeq2.20578

John W. Clune, Charles A. Cravotta III, Admin Husic, Hilary J. Dozier, Kurt E. Schimdt

{"title":"Complex hydrology and variability of nitrogen sources in a karst watershed","authors":"John W. Clune, Charles A. Cravotta III, Admin Husic, Hilary J. Dozier, Kurt E. Schimdt","doi":"10.1002/jeq2.20578","DOIUrl":"10.1002/jeq2.20578","url":null,"abstract":"Streams draining karst areas with rapid groundwater transit times may respond relatively quickly to nitrogen reduction strategies, but the complex hydrologic network of interconnected sinkholes and springs is challenging for determining the placement and effectiveness of management practices. This study aims to inform nitrogen reduction strategies in a representative agricultural karst setting of the Chesapeake Bay watershed (Fishing Creek watershed, Pennsylvania) with known elevated nitrate contamination and a previous documented groundwater residence time of less than a decade. During baseflow conditions, streamflow did not increase with drainage area. Headwaters and the main stem lost substantial flow to sinkholes until eventually discharging along large springs downstream. Seasonal hydrologic conditions shift the flow and nitrogen load spatially among losing and gaining stream sections. A compilation of nitrogen source inputs with the geochemistry and the pattern of enrichment of δ15N and δ18O suggest that the nitrogen in streams and springs during baseflow represents a mixture of manure, fertilizer, and wastewater sources with low potential for denitrification. The pH and calcite saturation index increased along generalized flow paths from headwaters to springs and indicate shorter groundwater residence times in baseflow during the spring versus summer. Given the substantial investment in management practices, fixed monitoring sites could incorporate synoptic water sampling to properly monitor long-term progress and help inform management actions in karst watersheds. Although karst watersheds have the potential to respond to nitrogen reduction strategies due to shorter groundwater residence times, high nitrogen inputs, effectiveness of conservation practices, and release of legacy nutrients within the karst cavities could confound progress of water quality goals.","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"53 4","pages":"492-507"},"PeriodicalIF":2.2,"publicationDate":"2024-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeq2.20578","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141199365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 0

The LTAR Cropland Common Experiment in the Lower Mississippi River Basin 密西西比河下游流域 LTAR 耕地共同试验。

IF 2.2 4区环境科学与生态学

Journal of environmental quality Pub Date : 2024-05-30 DOI: 10.1002/jeq2.20577

Martin A. Locke, Lindsey M. Witthaus, Richard E. Lizotte, Lucas J. Heintzman, Matthew T. Moore, Andrew O'Reilly, Robert R. Wells, Eddy J. Langendoen, Ronald L. Bingner, Drew M. Gholson, Jason M. Taylor, Frank E. Johnson II

{"title":"The LTAR Cropland Common Experiment in the Lower Mississippi River Basin","authors":"Martin A. Locke, Lindsey M. Witthaus, Richard E. Lizotte, Lucas J. Heintzman, Matthew T. Moore, Andrew O'Reilly, Robert R. Wells, Eddy J. Langendoen, Ronald L. Bingner, Drew M. Gholson, Jason M. Taylor, Frank E. Johnson II","doi":"10.1002/jeq2.20577","DOIUrl":"10.1002/jeq2.20577","url":null,"abstract":"The Lower Mississippi River Basin Long-Term Agroecosystem Research Site (LMRB-LTAR) encompasses six states from Missouri to the Gulf of Mexico and is coordinated by the USDA-ARS National Sedimentation Laboratory, Oxford, MS. The overarching goal of LTAR is to assess regionally diverse and geographically scalable farming practices for enhanced sustainability of agroecosystem goods and services under changing environment and resource-use conditions. The LMRB-LTAR overall goal is to assess sustainable row crop agricultural production systems that integrate regional environmental and socioeconomic needs. Primary row crops in the region include soybeans, corn, cotton, rice, and sugarcane with crop rotations influenced by commodity crop price and other factors. The field-scale common experiment (CE) includes four row crop farms (26–101 ha) established in 2021 and 2023. Three fields are managed with alternative practices, including reduced tillage, cover crops, and automated prescription irrigation, and three fields are managed with prevailing farming practices, consisting of conventional tillage, no cover crop, and nonprescription irrigation. Treatment effects on crop productivity, soil quality, water use efficiency, water quality, and carbon storage are assessed. Research from the LMRB CE will deliver outcomes linked to overarching LTAR network goals, including innovative agricultural systems, strengthened partnerships, data management technologies, and precision environmental tools.","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"53 6","pages":"957-967"},"PeriodicalIF":2.2,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeq2.20577","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141179757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 0

Organic amendments temporarily change arsenic speciation and bioaccessibility in a lead and arsenic co-contaminated urban soil 有机添加剂暂时改变了铅和砷共同污染的城市土壤中砷的种类和生物可及性。

IF 2.2 4区环境科学与生态学

Journal of environmental quality Pub Date : 2024-05-30 DOI: 10.1002/jeq2.20575

Chammi P. Attanayake, Ganga M. Hettiarachchi, Aishika I. Dissanayake, Qing Ma

{"title":"Organic amendments temporarily change arsenic speciation and bioaccessibility in a lead and arsenic co-contaminated urban soil","authors":"Chammi P. Attanayake, Ganga M. Hettiarachchi, Aishika I. Dissanayake, Qing Ma","doi":"10.1002/jeq2.20575","DOIUrl":"10.1002/jeq2.20575","url":null,"abstract":"Organic amendments often reduce the bioaccessibility of soil lead (Pb) but not that of soil arsenic (As). The effect of Pb on As bioaccessibility is rarely studied in co-contaminated soils. In a field study, we assessed the effect of mushroom compost, leaf compost, noncomposted biosolids, and composted biosolids amendments on As speciation in a co-contaminated (As and Pb) soil at 7, 349, and 642 days after amending soils and the change of As speciation during an in vitro bioaccessibility extraction (gastric solution, pH 2.5) using bulk X-ray absorption near-edge structure spectroscopy. Soil was contaminated by coal combustion and other diffuse sources and had low As bioaccessibility (7%–12%). Unamended soil had As(III) sorbed onto pyrite (As(III)-pyrite; ∼60%) and As(V) adsorbed onto Fe oxy(hydr)oxides (As(V)-Fh; ∼40%). In amended soils, except in composted biosolids-amended soils, at 7 days, As(V)-Fh decreased to 15%–26% and redistributed into As(III)-Fh and/or As(III)-pyrite. This transformation was most pronounced in mushroom compost amended soil resulting in a significant (46%) increase of As bioaccessibility compared to the unamended soil. Composted biosolids-amended soils had relatively stable As(V)-Fh. Lead arsenate formed during the in vitro extraction in amended soils, except in composted biosolids-amended soils. Arsenic speciation and bioaccessibility were similar in 349- and 642-day in all the amended and unamended soils. Reduction of As(V)-Fh to As(III) forms in the short term in three of the amended soils showed the potential to increase As bioaccessibility. The formation of stable lead arsenate during the in vitro extraction would counteract the short-term increase of As bioaccessibility in those amended soils.","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"53 4","pages":"535-545"},"PeriodicalIF":2.2,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141179754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 0

PFAS fate using lysimeters during degraded soil reclamation using biosolids 在使用生物固体进行降解土壤改良的过程中，使用溶胞仪测定 PFAS 的归宿。

IF 2.2 4区环境科学与生态学

Journal of environmental quality Pub Date : 2024-05-30 DOI: 10.1002/jeq2.20576

Lynda Peter, Mahsa Modiri-Gharehveran, Odiney Alvarez-Campos, Gregory K. Evanylo, Linda S. Lee

{"title":"PFAS fate using lysimeters during degraded soil reclamation using biosolids","authors":"Lynda Peter, Mahsa Modiri-Gharehveran, Odiney Alvarez-Campos, Gregory K. Evanylo, Linda S. Lee","doi":"10.1002/jeq2.20576","DOIUrl":"10.1002/jeq2.20576","url":null,"abstract":"Carbon- and nutrient-rich biosolids are used in agriculture and land reclamation. However, per- and polyfluoroalkyl substances (PFAS) typically present in biosolids raise concerns of PFAS leaching to groundwater and plant uptake. Here, we investigated PFAS persistence and leaching from biosolids applied to a site constructed artificially to mimic degraded soils. Treatments included biosolids and biosolids blended with mulch applied at different rates to attain either one and five times the agronomic N rate for vegetable crops and a control treatment with synthetic urea and triple superphosphate fertilizer. Leachates were collected for a 2-year period from 15-cm depth zero-tension drainage lysimeters. Soils were analyzed post biosolids application. PFAS were quantified using isotope-dilution, solid-phase extraction and liquid chromatography tandem mass spectrometry. Leachate profiles exemplified an initial high total PFAS concentration, followed by a sharp decline and subsequent small fluctuations attributed to pre-existing soil conditions and rainfall patterns. Quantifiable PFAS in leachate were proportional to biosolids application rates. Short-chain perfluoroalkyl acids (CF2 < 6) were dominant in leachate, while the percentage of longer chains homologues was higher in soils. A 43% biosolids blend with mulch resulted in 21% lower PFAS leachate concentrations even with the blend application rate being 1.5 times higher than biosolids due to the blend's lower N-content. The blending effect was more pronounced for long-chain perfluoroalkyl sulfonic acids that have a greater retention by soils and the air–water interface. Biosolids blending as a pragmatic strategy for reducing PFAS leachate concentrations may aid in the sustainable beneficial reuse of biosolids.","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"54 1","pages":"41-53"},"PeriodicalIF":2.2,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11718147/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141179755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 0

Forecasting fish mortality from water and air quality data using deep learning models 利用深度学习模型从水质和空气质量数据中预测鱼类死亡率。

IF 2.2 4区环境科学与生态学

Journal of environmental quality Pub Date : 2024-05-29 DOI: 10.1002/jeq2.20574

Chia-Ching Ting, Ying-Chu Chen

{"title":"Forecasting fish mortality from water and air quality data using deep learning models","authors":"Chia-Ching Ting, Ying-Chu Chen","doi":"10.1002/jeq2.20574","DOIUrl":"10.1002/jeq2.20574","url":null,"abstract":"The high rate of aquatic mortality incidents recorded in Taiwan and worldwide is creating an urgent demand for more accurate fish mortality prediction. Present study innovatively integrated air and water quality data to measure water quality degradation, and utilized deep learning methods to predict accidental fish mortality from the data. Keras library was used to build multilayer perceptron and long short-term memory models for training purposes, and the models’ accuracies in fish mortality prediction were compared with that of the naïve Bayesian classifier. Environmental data from the 5 days before a fish mortality event proved to be the most important data for effective model training. Multilayer perceptron model reached an accuracy of 93.4%, with a loss function of 0.01, when meteorological and water quality data were jointly considered. It was found that meteorological conditions were not the sole contributors to fish mortality. Predicted fish mortality rate of 4.7% closely corresponded to the true number of fish mortality events during the study period, that is, four. A significant surge in fish mortality, from 20% to 50%, was noted when the river pollution index increased from 5.36 to 6.5. Moreover, the probability of fish mortality increased when the concentration of dissolved oxygen dropped below 2 mg/L. To mitigate fish mortality, ammonia nitrogen concentrations should be capped at 5 mg/L. Dissolved oxygen concentration was found to be the paramount factor influencing fish mortality, followed by the river pollution index and meteorological data. Results of the present study are expected to aid progress toward achieving the Sustainable Development Goals and to increase the profitability of water resources.","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"53 4","pages":"482-491"},"PeriodicalIF":2.2,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141161668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 0

The LTAR Integrated Grazing Land Common Experiment at the Texas Gulf 德克萨斯湾的 LTAR 综合牧场共同实验。

IF 2.2 4区环境科学与生态学

Journal of environmental quality Pub Date : 2024-05-26 DOI: 10.1002/jeq2.20573

Merilynn C. Schantz, Douglas R. Smith, Daren Harmel, Douglas J. Goodwin, Doug R. Tolleson, Javier M. Osorio Leyton, K. Colton Flynn, Jenifer L. Yost, Kelly R. Thorp, Jeffrey G. Arnold, Michael J. White, Kabindra Adhikari, Chad Hajda

{"title":"The LTAR Integrated Grazing Land Common Experiment at the Texas Gulf","authors":"Merilynn C. Schantz, Douglas R. Smith, Daren Harmel, Douglas J. Goodwin, Doug R. Tolleson, Javier M. Osorio Leyton, K. Colton Flynn, Jenifer L. Yost, Kelly R. Thorp, Jeffrey G. Arnold, Michael J. White, Kabindra Adhikari, Chad Hajda","doi":"10.1002/jeq2.20573","DOIUrl":"10.1002/jeq2.20573","url":null,"abstract":"Extreme weather and climate events have become more frequent and directly affect the ecological structure and function of integrated grazing lands. While the Great Plains have experienced a long history of regular disturbances from drought and floods, grazing, and fires, the increased frequency and magnitude of these disturbances can reduce ecological resilience, largely depending on management practices. Alternative strategies designed to adaptively manage grazing land resources based on the ecology of the system should increase the resistance and resilience to disturbances when compared to prevailing practices. Determining the ecologic and economic value of alternative strategies will require long-term evaluations across large spatial scales. The Long-Term Agroecosystem Research network has been established to evaluate the differences between alternative and prevailing practices among 18 strategically located sites and across decadal time scales throughout the continental United States. A key integrated grazing land site within this network is the Texas Gulf located at the Riesel Watersheds in the Blackland Prairie of Central Texas. At this study site, the differences between alternative and prevailing grazing management strategies are now being evaluated. The alternative strategy was designed using a combination of knowledge of the site and species ecology with modern-day tools and technologies. Alternatively, the prevailing practice implements a conventional year-round continuous grazing system with heavy reliance on hay and supplemental protein during winter. Results will provide grazing land managers with economically viable adaptive management choices for increasing ecological resilience following extreme and frequent disturbance events.","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"53 6","pages":"1025-1036"},"PeriodicalIF":2.2,"publicationDate":"2024-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeq2.20573","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141154918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 0

Nitrous oxide emissions from soybean in response to drained and undrained soils and previous corn nitrogen management 大豆的氧化亚氮排放量对排水土壤和未排水土壤以及以前的玉米氮肥管理的响应。

IF 2.2 4区环境科学与生态学

Journal of environmental quality Pub Date : 2024-05-24 DOI: 10.1002/jeq2.20566

Karina P. Fabrizzi, Fabián G. Fernández, Rodney T. Venterea, Seth L. Naeve

{"title":"Nitrous oxide emissions from soybean in response to drained and undrained soils and previous corn nitrogen management","authors":"Karina P. Fabrizzi, Fabián G. Fernández, Rodney T. Venterea, Seth L. Naeve","doi":"10.1002/jeq2.20566","DOIUrl":"10.1002/jeq2.20566","url":null,"abstract":"While corn (Zea mays L.)-soybean (Glycine max. Merr. L) is a predominant rotation system in the US Midwest the residual effect of nitrogen (N) fertilization to corn on the following year's soybean and N2O emissions under different soil drainage conditions has not been studied. Our objective was to quantify agronomic parameters and season-long N2O emissions from soybean as affected by N management (0-N and optimum N rate of 135 kg N ha−1 as single or split application) during the previous corn crop under drained and undrained systems. Urea was applied to corn, and residual N effects were measured on soybean the following year in a poorly drained soil with and without subsurface tile drainage. Drainage reduced N2O emissions in one of three growing seasons but had no effect on soybean yield or N removal in grain. Nitrogen management in the previous corn crop had no effect on soybean grain yield, N removal, or N2O emissions during the soybean phase. Even though soybean symbiotically fixes N and removes more N in grain than corn, N2O emissions were more than two times greater during the corn phase (mean = 1.83 kg N ha−1) due to N fertilization than during the soybean phase (mean = 0.80 kg N ha−1). Also, N2O emissions in the corn years were increased possibly due to decomposition of the previous year's soybean crop residue compared to corn residue decomposition in the soybean years. Tile drainage, especially where wet soil conditions are prevalent, is a viable option to mitigate agricultural N2O emissions.","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"53 4","pages":"407-417"},"PeriodicalIF":2.2,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeq2.20566","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141087499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 0

Effects of Lake Erie dredged material on microbiomes in a farm soil of northwestern Ohio 伊利湖疏浚物对俄亥俄州西北部农场土壤中微生物群的影响。

IF 2.2 4区环境科学与生态学

Journal of environmental quality Pub Date : 2024-05-24 DOI: 10.1002/jeq2.20570

Jyotshana Gautam, Wolfgang Ebersole, Russell Brigham, Junfeng Shang, Angélica Vázquez-Ortega, Zhaohui Xu

{"title":"Effects of Lake Erie dredged material on microbiomes in a farm soil of northwestern Ohio","authors":"Jyotshana Gautam, Wolfgang Ebersole, Russell Brigham, Junfeng Shang, Angélica Vázquez-Ortega, Zhaohui Xu","doi":"10.1002/jeq2.20570","DOIUrl":"10.1002/jeq2.20570","url":null,"abstract":"Dredged materials are often considered as candidates for replenishing lost topsoils in the watersheds of rivers and lakes. This study aimed to investigate the impacts of Lake Erie dredged material on the microbial community in a farm soil of northwestern Ohio. Dredged material from the Toledo Harbor, OH was mixed with a local farm soil at ratios of 0:100, 10:90, 20:80, and 100:0 for soybean growth in a greenhouse for 123 days and was subject to 16S rRNA gene sequencing. α-Diversity analysis revealed that although the original dredged material hosted a highly diverse microbiome, soils blended with the dredged material had similar levels of bacterial diversity to 100% farm soil throughout the experiment. β-Diversity analysis demonstrated that, given the same plant status, that is, with or without soybean, blended soils had similar bacterial communities to 100% farm soil during the experiment. Furthermore, by the end of the experiment, all soils with soybeans merged into one cluster distinctive from those without the plants, indicating that the growth of plants played a dominating role in defining the structure of soil microbiomes. The majority (73.8%) of the operational taxonomy units that were unique to the original dredged material were not detected by the end of the experiment. This study demonstrates that up to 20% of the dredged material can be safely blended into the farm soil without distorting the microbial communities of the latter, implying a potential beneficial use of the dredged material for topsoil restoration.","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"53 4","pages":"430-440"},"PeriodicalIF":2.2,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeq2.20570","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141087492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 0

Erratum to: Neonicotinoid pesticide and nitrate mixture removal and persistence in floating treatment wetlands 勘误：新烟碱类杀虫剂和硝酸盐混合物在漂浮处理湿地中的去除和持久性。

IF 2.2 4区环境科学与生态学

Journal of environmental quality Pub Date : 2024-05-24 DOI: 10.1002/jeq2.20571

引用次数: 0