Journal of environmental quality最新文献

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The GrassSyn dataset: Soil organic carbon stocks in Brazilian grassy ecosystems GrassSyn数据集:巴西草地生态系统的土壤有机碳储量。
IF 2.2 4区 环境科学与生态学
Journal of environmental quality Pub Date : 2024-12-25 DOI: 10.1002/jeq2.20665
Bianca Ott Andrade, Cristhian Hernandez Gamboa, Gabriel William Dias Ferreira, Martin Wiesmeier, Eduardo Delgado Assad, Carlos Eduardo Pellegrino Cerri, José Márcio Mello, Vinícius Augusto Morais, Gerhard E. Overbeck, Herval Vieira Pinto-Junior, José Roberto Soares Scolforo, Carlos Gustavo Tornquist
{"title":"The GrassSyn dataset: Soil organic carbon stocks in Brazilian grassy ecosystems","authors":"Bianca Ott Andrade,&nbsp;Cristhian Hernandez Gamboa,&nbsp;Gabriel William Dias Ferreira,&nbsp;Martin Wiesmeier,&nbsp;Eduardo Delgado Assad,&nbsp;Carlos Eduardo Pellegrino Cerri,&nbsp;José Márcio Mello,&nbsp;Vinícius Augusto Morais,&nbsp;Gerhard E. Overbeck,&nbsp;Herval Vieira Pinto-Junior,&nbsp;José Roberto Soares Scolforo,&nbsp;Carlos Gustavo Tornquist","doi":"10.1002/jeq2.20665","DOIUrl":"10.1002/jeq2.20665","url":null,"abstract":"<p>Although ecosystem management and restoration are known to enhance carbon storage, limited knowledge of ecosystem-specific soil organic carbon (SOC) stocks and processes hinders the development of climate-ready, biodiversity-focused policies. Baseline SOC stocks data for specific ecosystems is essential. This paper aims to: (i) examine SOC stock variability across major grassy ecosystems in Brazil and (ii) discuss data limitations and applications. We compiled the Grassland Synthesis Working Group dataset, which comprehensively aggregates SOC stocks data from published studies on main Brazil's grassy ecosystems. Our dataset results from systematic literature review and regional soil sampling datasets. The dataset provides spatially explicit SOC stocks, physical soil properties, and ancillary information from 182 studies (1996–2021) across 803 sites, spanning 35° latitude and 28° longitude. The dataset, structured in relational tables, reports soil C stocks and ancillary soil parameters at depths up to 100 cm. SOC stocks vary by grassy ecosystem types and sampling depth, with subtropical grasslands (Campos Gerais, South Brazilian highland grasslands, and Pampa) showing the highest SOC stocks across all depth layers (SOC 0–30 cm: 64.5–162.8 Mg C ha<sup>−1</sup>; SOC 0–100 cm: 137.6–224.7 Mg C ha<sup>−1</sup>). The tropical Cerrado and Amazon grassy ecosystems exhibit high SOC stocks, particularly in subsurface layers (SOC 0–30 cm: 53.6 and 38.3 Mg C ha<sup>−1</sup>; SOC 0–100 cm: 109.8 and 121.4 Mg C ha<sup>−1</sup>, respectively). Our data analysis shows high carbon stocks in natural/seminatural ecosystems, but some ecosystems are undersampled. The dataset on SOC stocks in grassy ecosystems could greatly aid Brazil's national greenhouse gas inventory.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"54 2","pages":"335-348"},"PeriodicalIF":2.2,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeq2.20665","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142894983","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
PFAS in agroecosystems: Sources, impacts, and opportunities for mitigating risks to human and ecosystem health 农业生态系统中的全氟化污染物:来源、影响和减轻人类和生态系统健康风险的机会。
IF 2.2 4区 环境科学与生态学
Journal of environmental quality Pub Date : 2024-12-24 DOI: 10.1002/jeq2.20670
Heather E. Preisendanz, Hui Li, Michael Mashtare, Odette Mina
{"title":"PFAS in agroecosystems: Sources, impacts, and opportunities for mitigating risks to human and ecosystem health","authors":"Heather E. Preisendanz,&nbsp;Hui Li,&nbsp;Michael Mashtare,&nbsp;Odette Mina","doi":"10.1002/jeq2.20670","DOIUrl":"10.1002/jeq2.20670","url":null,"abstract":"<p>Concerns regarding per- and polyfluoroalkyl substances (PFAS) and their precursors have driven increased research into their sources, impacts, and mitigation strategies, aiming to reduce their prevalence in the environment. While much of this research has centered on known large sources of PFAS (e.g., military bases, airports, fire training sites, and some manufacturing facilities), there has been increased interest in evaluating the inadvertent introduction of PFAS into agroecosystems from beneficial reuse of treated domestic wastewater for irrigation and land application of biosolids and composts derived from food waste. Additional sources to agricultural fields include the use of PFAS-containing pesticides. These activities raise questions regarding the potential impacts of PFAS introduced to agricultural systems on rural water supplies, soil health, and food safety. This special section contains papers that fall into three categories: (i) source assessment of PFAS in water and wastewater residuals destined for beneficial reuse in agroecosystems, (ii) improved understanding of PFAS fate and transport in agroecosystems following land application of PFAS-containing materials, and (iii) small-scale assessment of techniques that demonstrate promise for mitigating PFAS mobilization in agroecosystems. The work contained in this special section can be used to help guide future decisions related to PFAS guidelines, policies, and regulations in agroecosystems intended to protect human and ecological health.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"54 1","pages":"1-5"},"PeriodicalIF":2.2,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11718121/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142882088","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
Environmental impacts of land application of biosolids to perennial pastures 在多年生牧场施用生物固体对环境的影响。
IF 2.2 4区 环境科学与生态学
Journal of environmental quality Pub Date : 2024-12-13 DOI: 10.1002/jeq2.20664
Leandro O. Vieira-Filho, Maria L. Silveira, Joao M. D. Sanchez, Marta M. Kohmann, Ester C. Ricken
{"title":"Environmental impacts of land application of biosolids to perennial pastures","authors":"Leandro O. Vieira-Filho,&nbsp;Maria L. Silveira,&nbsp;Joao M. D. Sanchez,&nbsp;Marta M. Kohmann,&nbsp;Ester C. Ricken","doi":"10.1002/jeq2.20664","DOIUrl":"10.1002/jeq2.20664","url":null,"abstract":"<p>Land application of biosolids to pastures confers multiple agronomic and environmental benefits, particularly in coarse-textured soils with low nutrient and organic matter levels. However, concerns over potential water quality have led to more stringent regulations that will limit beneficial reuse of biosolids in Florida. This 3-year field study evaluated the impacts of biosolids application strategies on N and P leaching losses, and soil P availability in an established bahiagrass (<i>Paspalum notatum</i> Flueggé) pasture. Treatments consisted of 2 P sources (biosolids and inorganic fertilizer) applied at 0, 20, 40, and 60 kg total P ha<sup>−1</sup>. Inorganic fertilizer treatments received the same N loads as the corresponding biosolids treatments. Biosolids and inorganic fertilizer increased in situ soil P availability and pore-water P concentrations relative to the control. Pore-water P concentrations increased linearly with P rate with the greatest values generally associated with inorganic fertilizer. Relatively low leachate P concentrations (below the detection limit of 0.025 mg L<sup>−1</sup> in 596 out of 777 samples) observed in the current study indicates minimum P offsite movement risk regardless of the P management strategy. Annual P mass leached was not affected by treatments; however, inorganic fertilizer resulted in modest but significant greater annual NO<sub>3</sub>-N mass leached than the other treatments. Lack of biosolids application rate effect on P and N leaching losses indicates that reduction in biosolids imposed by new state regulation will likely have no positive impact on water quality. Data demonstrated that, when properly managed, biosolids can be an environmentally sound fertilizer source for pastures.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"54 1","pages":"246-256"},"PeriodicalIF":2.2,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142822280","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
A risk index tool to minimize the risk of nitrogen loss from land to water 风险指数工具,以尽量减少从土地到水的氮损失的风险。
IF 2.2 4区 环境科学与生态学
Journal of environmental quality Pub Date : 2024-12-12 DOI: 10.1002/jeq2.20660
R. W. McDowell, V. O. Snow, R. Tamepo, L. Lilburne, R. Cichota, K. Muraoka, E. Soal
{"title":"A risk index tool to minimize the risk of nitrogen loss from land to water","authors":"R. W. McDowell,&nbsp;V. O. Snow,&nbsp;R. Tamepo,&nbsp;L. Lilburne,&nbsp;R. Cichota,&nbsp;K. Muraoka,&nbsp;E. Soal","doi":"10.1002/jeq2.20660","DOIUrl":"10.1002/jeq2.20660","url":null,"abstract":"<p>Simple models can help reduce nitrogen (N) loss from land and protect water quality. However, the complexity of primary production systems may impair the accuracy of simple models. A tool was developed that assessed the risk of N loss as the product of N source inputs and relative transport by leaching and runoff. A dynamic process-based model was used to estimate the long-term monthly N loss risk by leaching and runoff in response to the interaction of static biophysical factors like soil type, slope, and long-term climate. Source inputs included dung and urine (from livestock), fertilizer, crop residues, and soil erosion. Estimates of the rank of N loss risk were related (<i>r</i><sup>2</sup> = 0.69, <i>p </i>&lt; 0.001) to 96 observations of N loss (kg ha<sup>−1</sup> year<sup>−1</sup>) across nine land uses; all but two of the observations fell within 95% prediction intervals. Across land uses, leaching accounted for 84% of N loss risk. Additional observations are needed to determine if N loss risk is representative of short-rotation vegetables and to account for potential lag times between calculated and measured losses. The good performance of the tool suggests that when displayed spatially, the tool can be used to target high-risk areas with actions to reduce the risk of N loss and the likelihood of water quality impairment.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"54 1","pages":"233-245"},"PeriodicalIF":2.2,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11718142/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142818247","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
Long-term changes in riparian connectivity and groundwater chemistry in an urban watershed 城市流域河流连通性和地下水化学的长期变化
IF 2.2 4区 环境科学与生态学
Journal of environmental quality Pub Date : 2024-12-08 DOI: 10.1002/jeq2.20654
Brittany N. Washington, Peter M. Groffman, Jonathan M. Duncan, Lawrence E. Band, Andrew J. Miller
{"title":"Long-term changes in riparian connectivity and groundwater chemistry in an urban watershed","authors":"Brittany N. Washington,&nbsp;Peter M. Groffman,&nbsp;Jonathan M. Duncan,&nbsp;Lawrence E. Band,&nbsp;Andrew J. Miller","doi":"10.1002/jeq2.20654","DOIUrl":"10.1002/jeq2.20654","url":null,"abstract":"<p>Hydrologic alterations associated with urbanization can weaken connections between riparian zones, streams, and uplands, leading to negative effects on the ability of riparian zones to intercept pollutants carried by surface water runoff and groundwater flow such as nitrate (NO<sub>3</sub><sup>−</sup>) and phosphate (PO<sub>4</sub><sup>3−</sup>). We analyzed the monthly water table as an indicator of riparian connectivity, along with groundwater NO<sub>3</sub><sup>−</sup> and PO<sub>4</sub><sup>3−</sup> concentrations, at four riparian sites within and near the Gwynns Falls Watershed in Baltimore, MD, from 1998 to 2018. The sites included one forested reference site (Oregon Ridge), two suburban riparian sites (Glyndon and Gwynnbrook), and one urban riparian site (Cahill) with at least two locations and four monitoring wells, located 5 m from the center of the stream, at each site. Results show an increase in connectivity as indicated by shallower water tables at two of the four sites studied: Glyndon and Cahill. This change in connectivity was associated with decreases in NO<sub>3</sub><sup>−</sup> at Glyndon and increases in PO<sub>4</sub><sup>3−</sup> at Glyndon, Gwynnbrook, and Cahill. These changes are consistent with previous studies showing that shallower water table depths increase anaerobic conditions, which increase NO<sub>3</sub><sup>−</sup> consumption by denitrification and decrease PO<sub>4</sub><sup>3−</sup> retention. The absence of change in the forested reference site, where climate would be expected to be the key driver, suggests that other drivers, including best management practices and stream restoration projects, could be affecting riparian water tables at the two suburban sites and the one urban site. Further research into the mechanisms behind these changes and site-specific dynamics is needed.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"54 1","pages":"257-274"},"PeriodicalIF":2.2,"publicationDate":"2024-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11718151/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142794736","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
Fertilizer management approaches influence nutrient leaching from residential landscapes 肥料管理方法影响住宅景观的养分淋失。
IF 2.2 4区 环境科学与生态学
Journal of environmental quality Pub Date : 2024-12-08 DOI: 10.1002/jeq2.20657
Alexander J. Reisinger, Eban Z. Bean, Mark Clark, Ansley J. Levine, P. Christopher Wilson
{"title":"Fertilizer management approaches influence nutrient leaching from residential landscapes","authors":"Alexander J. Reisinger,&nbsp;Eban Z. Bean,&nbsp;Mark Clark,&nbsp;Ansley J. Levine,&nbsp;P. Christopher Wilson","doi":"10.1002/jeq2.20657","DOIUrl":"10.1002/jeq2.20657","url":null,"abstract":"<p>Residential lawn management often includes fertilizer application to encourage healthy plant growth and support the aesthetic preferences of homeowners and communities. These inputs may negatively impact the environment by increasing nutrient export to aquatic ecosystems via surface runoff or leaching through soil into groundwater. Fertilizer management and nutrient export are of particular concern in karst areas like North-Central Florida, where the underlying karst geology leads to rapid, direct connections between surface and groundwater ecosystems. We quantified nitrogen (N) and phosphorus (P) leaching from residential landscapes in North-Central Florida. We investigated nutrient leaching from landscapes spanning a real estate gradient and across different fertility treatments (no N fertilizer, synthetic mineral fertilizer, biosolids-based organic mineral fertilizer, compost topdressing, natural areas). We measured leachate from these landscapes weekly for 1 year. All residential landscapes, including control yards that received no N fertilizer, leached &gt;10x more nitrate than natural areas, and landscapes treated with synthetic fertilizer exhibited an &gt;80x increase in nitrate leaching. Fertilizer treatments also appeared to alter the N leaching composition, with a greater proportion of total dissolved N leaching coming from nitrate in fertilized treatments (synthetic and organic) compared to natural, control, or compost-treated landscapes. These results show that landscape management and human actions are important drivers of nutrient leaching in residential landscapes. While all residential lawns leached more N than natural areas, less leaching was associated with certain management approaches. When implemented at larger scales, these approaches may reduce the likelihood of negative impacts of residential landscapes on regional water quality.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"54 1","pages":"289-302"},"PeriodicalIF":2.2,"publicationDate":"2024-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142794733","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
Toward a transdisciplinary and unifying definition of legacy phosphorus. 对遗留磷的跨学科和统一定义。
IF 2.2 4区 环境科学与生态学
Journal of environmental quality Pub Date : 2024-12-08 DOI: 10.1002/jeq2.20659
Amy L Shober, Zachary P Simpson, Helen P Jarvie, Merrin L Macrae, Peter J A Kleinman, Philip M Haygarth, Stephanie Kulesza, Luke Gatiboni, Jenny Davies
{"title":"Toward a transdisciplinary and unifying definition of legacy phosphorus.","authors":"Amy L Shober, Zachary P Simpson, Helen P Jarvie, Merrin L Macrae, Peter J A Kleinman, Philip M Haygarth, Stephanie Kulesza, Luke Gatiboni, Jenny Davies","doi":"10.1002/jeq2.20659","DOIUrl":"https://doi.org/10.1002/jeq2.20659","url":null,"abstract":"<p><p>Legacy phosphorus (P) is a concept advanced by Dr. Andrew Sharpley and colleagues that was originally applied to the persistence of anthropogenic signatures in watersheds, and it has since been adopted in a diversity of settings to help guide the science and management of P. Following Sharpley's example to develop consensus-based science, we considered contrasting perspectives on legacy P and defined legacy P as those stores within the environment that arise from historic human activity excluding \"natural\" or \"background\" geogenic sources. Legacy P is not restricted to one system or setting; it may reside in soils, sediments, biota, and water bodies. Legacy P has been estimated by fluxes (inputs minus outputs of P to a system) or, equivalently, by mass stocks (total minus geogenic). Because the origin of P in the environment cannot currently be directly quantified, we recommend that researchers report \"total P\" to track wider watershed P stocks and fluxes of P that include legacy P. We recognize that the definition of legacy P will continue to evolve as we continue to work toward consensus. Ultimately, the final definition of legacy P has consequences for the implementation and success of regulatory and voluntary strategies for legacy P management in agricultural systems. We support continued progress toward a consensus-backed, research-grounded definition for legacy P that is widely applicable yet useful for guiding management and policy.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142794740","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
Evaluating sorbents for reducing per- and polyfluoroalkyl substance mobility in biosolids-amended soil columns 评价吸收剂在生物固体修正土壤柱中降低全氟烷基和多氟烷基物质流动性的作用。
IF 2.2 4区 环境科学与生态学
Journal of environmental quality Pub Date : 2024-12-08 DOI: 10.1002/jeq2.20658
Elijah O. Openiyi, Linda S. Lee, Caroline R. Alukkal
{"title":"Evaluating sorbents for reducing per- and polyfluoroalkyl substance mobility in biosolids-amended soil columns","authors":"Elijah O. Openiyi,&nbsp;Linda S. Lee,&nbsp;Caroline R. Alukkal","doi":"10.1002/jeq2.20658","DOIUrl":"10.1002/jeq2.20658","url":null,"abstract":"<p>Sustainable reuse of biosolids as fertilizers is being threatened by the presence of per- and polyfluoroalkyl substances (PFAS) in our waste stream warranting research on strategies that will minimize PFAS mobility from land-applied biosolids. Here, we evaluated the ability of waste-derived sorbents aluminum chlorohydrate water treatment residuals (ACH-WTRs, 1 wt%) and biosolids-based biochar (1.5 wt%) to reduce mobility of PFAS in columns with 3 wt% biosolids-amended soils with and without sorbent layered on top of soil only and operated under transient unsaturated conditions. Cycles of simulated rain events of approximately three pore volumes distributed over a 4-day period followed by 3 days of drying were imposed for 6 months. Total PFAS concentrations in collected leachates were lower in the sorbent-treated columns compared to the control columns. Biochar outperformed the ACH-WTR with 41% versus 32% lower total PFAS in leachate, respectively, compared to the control. The most significant mitigation effect was observed with PFOS (perfluorooctane sulfonate) with 68% and 62% less PFOS in the leachates from the columns treated with ACH-WTR or biochar compared to the control, respectively. These results provide a first-of-its-kind assessment of the potential benefit of co-applying WTRs or biochar with biosolids to reduce PFAS mobility in biosolids-amended soils.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"54 1","pages":"118-131"},"PeriodicalIF":2.2,"publicationDate":"2024-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11718134/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142794730","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
Using RZWQM2-P to capture tile drainage phosphorus dynamics in Ohio 使用 RZWQM2-P 捕获俄亥俄州瓦片排水磷动态。
IF 2.2 4区 环境科学与生态学
Journal of environmental quality Pub Date : 2024-11-25 DOI: 10.1002/jeq2.20656
Harmanpreet Singh Grewal, Zhiming Qi, Vinayak Shedekar, Kevin King
{"title":"Using RZWQM2-P to capture tile drainage phosphorus dynamics in Ohio","authors":"Harmanpreet Singh Grewal,&nbsp;Zhiming Qi,&nbsp;Vinayak Shedekar,&nbsp;Kevin King","doi":"10.1002/jeq2.20656","DOIUrl":"10.1002/jeq2.20656","url":null,"abstract":"<p>Phosphorus (P) loading from tile-drained agricultural lands is linked to water quality and aquatic ecosystem degradation. The RZWQM2-P model was developed to simulate the fate and transport of P in soil-water-plant systems, especially in tile-drained croplands. Comprehensive evaluation and application of RZWQM2-P, however, remains limited. This study evaluates RZWQM2-P in simulating P dynamics using extensive data and assesses the potential of management practices for mitigating P losses. Subsurface drainage and surface runoff flows were monitored at a tile-drained site from 2017 to 2020 in Ohio, and the water flow and P loss data were summarized on a daily basis. RZWQM2-P was calibrated and validated using those observed data and was subsequently used to assess the effectiveness of controlled drainage (CD) and winter cover crops (CC) in reducing P losses. The model satisfactorily simulated dissolved reactive P (DRP) loss from tile drainage on daily and monthly bases (Nash–Sutcliffe efficiency [NSE] = 0.50, <i>R</i><sup>2 </sup>= 0.52, index of agreement [IoA] = 0.84 for daily; NSE = 0.73, <i>R</i><sup>2 </sup>= 0.78, IoA = 0.94 for monthly) and total P (TP) loss on a monthly basis (NSE = 0.64, <i>R</i><sup>2 </sup>= 0.65, IoA = 0.88), but the daily TP simulation was less accurate (NSE = 0.30, <i>R</i><sup>2 </sup>= 0.30, IoA = 0.59). Simulations showed that winter rye CC reduced DRP by 16% and TP by 4% compared to the base scenario, whereas CD increased DRP (60%–129%) and TP (5%–17%) losses at three tested outlet elevations compared to free drainage. RZWQM2-P can capture P dynamics in tile-drained cropland and is a promising tool for effective P management.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"54 1","pages":"217-232"},"PeriodicalIF":2.2,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11718149/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142716368","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 glyphosate on antibiotic resistance in soil bacteria and its potential significance: A review 草甘膦对土壤细菌抗生素耐药性的影响及其潜在意义:综述。
IF 2.2 4区 环境科学与生态学
Journal of environmental quality Pub Date : 2024-11-25 DOI: 10.1002/jeq2.20655
Bradley L. Bearson, Cameron H. Douglass, Stephen O. Duke, Thomas B. Moorman, Patrick J. Tranel
{"title":"Effects of glyphosate on antibiotic resistance in soil bacteria and its potential significance: A review","authors":"Bradley L. Bearson,&nbsp;Cameron H. Douglass,&nbsp;Stephen O. Duke,&nbsp;Thomas B. Moorman,&nbsp;Patrick J. Tranel","doi":"10.1002/jeq2.20655","DOIUrl":"10.1002/jeq2.20655","url":null,"abstract":"<p>The evolution and spread of antibiotic resistance are problems with important consequences for bacterial disease treatment. Antibiotic use in animal production and the subsequent export of antibiotic resistance elements in animal manure to soil is a concern. Recent reports suggest that exposure of pathogenic bacteria to glyphosate increases antibiotic resistance. We review these reports and identify soil processes likely to affect the persistence of glyphosate, antibiotic resistance elements, and their interactions. The herbicide molecular target of glyphosate is not shared by antibiotics, indicating that target-site cross-resistance cannot account for increased antibiotic resistance. The mechanisms of bacterial resistance to glyphosate and antibiotics differ, and bacterial tolerance or resistance to glyphosate does not coincide with increased resistance to antibiotics. Glyphosate in the presence of antibiotics can increase the activity of efflux pumps, which confer tolerance to glyphosate, allowing for an increased frequency of mutation for antibiotic resistance. Such effects are not unique to glyphosate, as other herbicides and chemical pollutants can have the same effect, although glyphosate is used in much larger quantities on agricultural soils than most other chemicals. Most evidence indicates that glyphosate is not mutagenic in bacteria. Some studies suggest that glyphosate enhances genetic exchange of antibiotic-resistance elements through effects on membrane permeability. Glyphosate and antibiotics are often present together in manure-treated soil for at least part of the crop-growing season, and initial studies indicate that glyphosate may increase abundance of antibiotic resistance genes in soil, but longer term investigations under realistic field conditions are needed. Although there are demonstratable interactions among glyphosate, bacteria, and antibiotic resistance, there is limited evidence that normal use of glyphosate poses a substantial risk for increased occurrence of antibiotic-resistant, bacterial pathogens. Longer term field studies using environmentally relevant concentrations of glyphosate and antibiotics are needed.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"54 1","pages":"160-180"},"PeriodicalIF":2.2,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11718153/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142716367","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}
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