样式: 排序: IF: - GO 导出 标记为已读
-
The presence of radiotoxic 210Po and 210Pb in Ukrainian wild medicinal plants and the assessment of related dose and cancer risk J. Environ. Qual. (IF 2.4) Pub Date : 2024-03-14 A. Moniakowska, P. Konieczyński, K. Block, R. Lysiuk, N. Shapovalova, D. Strumińska‐Parulska
Herbal plants are considered natural pharmaceuticals but also accumulate chemical elements and compounds at high levels. 210Po and 210Pb are highly radiotoxic and may cause carcinogenesis due to ionizing radiation. Thirteen of the most popular wild‐growing herbaceous plant species, mostly included in the European Pharmacopoeia, were collected across Ukraine. 210Po and 210Pb were determined in the medicinal
-
Influence of irrigation water and soil on annual mercury dynamics in Sacramento Valley rice fields J. Environ. Qual. (IF 2.4) Pub Date : 2024-03-12 Luke A. Salvato, Mark Marvin‐DiPasquale, Jacob A. Fleck, Stephen A. McCord, Bruce A. Linquist
Methylmercury (MeHg) is a human and environmental toxin produced in flooded soils. Little is known about MeHg in rice (Oryza Sativa L.) fields in Sacramento Valley, California. The objectives of this study were to quantify mercury fractions in irrigation water and within rice fields and to determine their mercury pools in surface water, soil, and grain. Soil, grain, and surface water (dissolved and
-
Phosphorus speciation in manure and fertilizer impacted Mid‐Atlantic coastal plain soils J. Environ. Qual. (IF 2.4) Pub Date : 2024-03-12 Lauren R. Mosesso, Mark S. Reiter, Kirk G. Scheckel, Nicole M. Fiorellino, Gurpal S. Toor, Amy L. Shober
Historical applications of manures and fertilizers at rates exceeding crop P removal in the Mid‐Atlantic region (United States) have resulted in decades of increased water quality degradation from P losses in agricultural runoff. As such, many growers in this region face restrictions on future P applications. An improved understanding of the fate, transformations, and availability of P is needed to
-
-
Phosphorus fractions and speciation in an alkaline, manured soil amended with alum, gypsum, and Epsom salt J. Environ. Qual. (IF 2.4) Pub Date : 2024-03-08 Darshani Kumaragamage, Ganga M. Hettiarachchi, Inoka Amarakoon, Doug Goltz, Srimathie Indraratne
Snowmelt runoff is a dominant pathway of phosphorus (P) losses from agricultural lands in cold climatic regions. Soil amendments effectively reduce P losses from soils by converting P to less soluble forms; however, changes in P speciation in cold climatic regions with fall‐applied amendments have not been investigated. This study evaluated P composition in soils from a manured field with fall‐amended
-
Evaluating novel biodegradable polymer matrix fertilizers for nitrogen‐efficient agriculture J. Environ. Qual. (IF 2.4) Pub Date : 2024-03-08 Torsten Witt, Nicole Robinson, Ana C. Palma, Lucas A. Cernusak, Steven Pratt, Matthew Redding, Damien J. Batstone, Susanne Schmidt, Bronwyn Laycock
Enhanced efficiency fertilizers (EEFs) can reduce nitrogen (N) losses in temperate agriculture but are less effective in the tropics. We aimed to design a new EEF and evaluate their performance in simple‐to‐complex tests with tropical soils and crops. We melt‐extruded urea at different loadings into biodegradable polymer matrix composites using biodegradable polyhydroxyalkanoate (PHA) or polybutylene
-
A review of the development and implementation of the critical source area concept: A reflection of Andrew Sharpley's role in improving water quality J. Environ. Qual. (IF 2.4) Pub Date : 2024-02-29 Richard McDowell, Peter J. A. Kleinman, Philip Haygarth, Joshua M. McGrath, Douglas Smith, Louise Heathwaite, Antti Iho, Oscar Schoumans, David Nash
Critical source areas (CSAs) are small areas of a field, farm, or catchment that account for most contaminant loss by having both a high contaminant availability and transport potential. Most work on CSAs has focused on phosphorus (P), largely through the work in the 1990s initiated by Dr. Sharpley and colleagues who recognized the value in targeting mitigation efforts. The CSA concept has been readily
-
Diurnal variation in methane emission from a rice paddy due to ebullition J. Environ. Qual. (IF 2.4) Pub Date : 2024-02-28 Masako Kajiura, Takeshi Tokida
Diurnal fluctuations in methane (CH4) emission are frequently observed in rice paddy fields, yet the driving mechanisms behind these variations are not fully understood. We posited that the observed diurnal patterns are predominantly due to temperature-dependent bubbling emissions (ebullition). To investigate this hypothesis, we conducted measurements of CH4 emission in a Japanese rice paddy using
-
New phosphorus losses via tile drainage depend on fertilizer form, placement, and timing J. Environ. Qual. (IF 2.4) Pub Date : 2024-02-26 William Osterholz, Zach Simpson, Mark Williams, Vinayak Shedekar, Chad Penn, Kevin King
Agricultural phosphorus (P) losses are harmful to water quality, but knowledge gaps about the importance of fertilizer management practices on new (recently applied) sources of P may limit P loss mitigation efforts. Weighted regression models applied to subsurface tile drainage water quality data enabled estimating the new P losses associated with 155 P applications in Ohio and Indiana, USA. Daily
-
Water quality trends of streams in Puerto Rico: Evaluating 50 years of the Clean Water Act J. Environ. Qual. (IF 2.4) Pub Date : 2024-02-21 Gustavo A. Martínez-Rodríguez, Miguel A. Vázquez-Cartagena, Cristian R. Perdomo-García, Raul E. Macchiavelli, David Sotomayor-Ramírez, Juan R. Rosa
Water quality regulations entail a substantial commitment of resources from governments and private entities. It is important to continually evaluate the effectiveness of these regulations to ensure they are having the intended impact. In this paper, we evaluated nutrient data as indicators of primary productivity and dissolved oxygen (DO) concentrations and pH as response variables to assess historical
-
Saturated buffers: Improvements and issues J. Environ. Qual. (IF 2.4) Pub Date : 2024-02-13 Emma E. Eldridge, Jon E. Schoonover, Karl W. J. Williard, Amir Sadeghpour, Jackie C. Gillespie
Saturated buffers are a newly developed agricultural best management practice used to redirect tile flow away from waterways, thereby mitigating nutrient losses and downstream eutrophication. This study evaluated the potential benefits of a novel saturated buffer design, which included pitchfork-shaped (PF) dispersion lines and a backflow check valve, that was installed alongside a traditional or standard
-
The importance of consensus science to managing phosphorus in the environment: SERA-17 and the legacy of Andrew Sharpley J. Environ. Qual. (IF 2.4) Pub Date : 2024-02-10 Merrin L. Macrae, Peter J. A. Kleinman, Deanna Osmond, Amy Shober, Nathan Nelson
Phosphorus (P) loss from agricultural systems to surface waters, and ultimately, eutrophication, presents a wicked problem requiring transdisciplinary solutions. The mission of SERA-17 (Southern Extension and Research Advisory Information Exchange Group-17) has been to address this problem by developing “Innovative Solutions to Minimize Phosphorus Losses from Agriculture.” Over the course of his career
-
Manure nutrient cycling in US animal agriculture basins—North Carolina case study J. Environ. Qual. (IF 2.4) Pub Date : 2024-02-10 Luis Huezo, Daniela Jones, Eric Edwards, Mahmoud Sharara
Nutrient cycling in crop–animal production is impacted by changes in both systems, with imbalance hotspots in concentrated animal production regions severely impacting water quality. This study assesses manure–crop nutrient balances in five river basins in North Carolina and demonstrates a new approach for partial nutrient balances along hydrological boundaries. County-level crop production data were
-
Assessment of salt tolerance in phytodesalination candidates: Two varieties of Fimbristylis—F. ferruginea and F. tenuicula J. Environ. Qual. (IF 2.4) Pub Date : 2024-02-07 Jinnawat Manasathien, Piyanut Khanema
Phytodesalination, an environmentally sustainable solution for saline soil challenges, involves identifying salt-tolerant plants. This study meticulously examined Fimbristylis ferruginea and Fimbristylis tenuicula near the underground salt dome in Khon Kaen, Thailand, revealing unique physicochemical soil properties, morphology, metabolomic responses, and ionic sequestration mechanisms. Despite F.
-
Analysis of nighttime aerosols and relation to covariates over a highly polluted sub-Saharan site using Mann–Kendall and wavelet coherence approach J. Environ. Qual. (IF 2.4) Pub Date : 2024-01-31 Ali Köse, Salman Tariq, Banu Numan Uyal, Muhammad Khan, Husam Rjoub, Usman Mehmood
High emissions of aerosols and trace gases during nighttime can cause serious air quality, climate, and health issues, particularly in extremely polluted cities. In this paper, an effort has been made to examine the variations in aerosols and trace gases over a sub-Saharan city of Ilorin (Nigeria) during nighttime. We have used Aerosol Robotic Network data of aerosol optical depth (AOD) at 500 nm,
-
Improving crop growing conditions with water treatment residual and compost co-amendments: Soil–water dynamics J. Environ. Qual. (IF 2.4) Pub Date : 2024-01-31 Wendy Stone, Jan Steytler, Lurika de Jager, Ailsa Hardie, Catherine E. Clarke
Land application of water treatment residual (WTR) in combination with phosphate-rich organic wastes, like compost or sewage sludge, in nutrient-poor soils was previously shown to promote crop growth. This WTR diversion from landfill to agriculture supports local and international mandates for waste circularity. Although soil–water dynamics—like saturated hydraulic conductivity, water retention, and
-
Soil organic carbon data comparison after 85 years and new 13C/12C compositions: The case study of the Ferrara province (Northeastern Italy) J. Environ. Qual. (IF 2.4) Pub Date : 2024-01-23 Gian Marco Salani, Gianluca Bianchini, Valentina Brombin, Claudio Natali
The main causes of soil organic matter (SOM) loss are land use (e.g., conventional agriculture) and land-use change (e.g., conversion of wetlands into croplands). Before World War II and until 1960s, the Ferrara province in the Emilia-Romagna region (Northeast Italy) enlarged its agricultural production area through drainage of wetlands. After that, the newly drained area was put into intensive agricultural
-
Potential for managing pool levels in a flood-control reservoir to increase nitrate-nitrogen load reductions J. Environ. Qual. (IF 2.4) Pub Date : 2024-01-23 Keith E. Schilling, Matthew T. Streeter, Elliot Anderson, Jennifer Merryman, Thomas Isenhart, Antonio Arenas-Amado, Chuck Theiling
Few strategies are available to reduce nitrate-nitrogen (NO3-N) loads at larger landscape scales, but flood control reservoirs are known to reduce riverine loads. In this study, we evaluated the potential to increase nitrogen (N) loss at Lake Red Rock, a large reservoir located in central Iowa, by evaluating the inundation of sediments deposited at the reservoir inflow. Sediment samples were collected
-
Benefitting productivity and the environment: Current and future maize cropping systems improve yield while reducing nitrate load J. Environ. Qual. (IF 2.4) Pub Date : 2024-01-23 Frank G. Dohleman, Ty J. Barten, Nicholas Helland, Subash Dahal, Juan Lopez Arrizia, Sarah Gehlhar, Charles Foresman, David Mack, Kelly Gillespie, Sotirios Archontoulis, Michael J. Castellano
Increases in cereal crop yield per area have increased global food security. “Era” studies compare historical and modern crop varieties in controlled experimental settings and are routinely used to understand how advances in crop genetics and management affect crop yield. However, to date, no era study has explored how advances in maize (Zea mays L.) genetics and management (i.e., cropping systems)
-
Phosphorus removal from agricultural tile drainage effluent with activated alumina in novel adsorption reactors J. Environ. Qual. (IF 2.4) Pub Date : 2024-01-20 Barry Husk, Gordon Balch, Juan Sebastian Sanchez, Leanne Ejack, Joann K. Whalen
Subsurface tile drains under agricultural field crops are a major source of phosphorus (P) discharge to aquatic ecosystems, contributing to the eutrophication of surface waters. Adsorption reactors for P removal from drainage water (P-reactors) could reduce P outflow from agricultural land but were rarely studied in cold, temperate climates. In our study, four low-cost P-reactors were installed in
-
-
A short history of the phosphorus index and Andrew Sharpley's contributions from inception through development and implementation J. Environ. Qual. (IF 2.4) Pub Date : 2023-12-21 Deanna L. Osmond, Peter J. A. Kleinman, Frank Coale, Nathan O. Nelson, Carl H. Bolster, Josh McGrath
In the 1980s, growing recognition of agricultural phosphorus (P) sources to surface water eutrophication led to scrutiny of animal feeding operations. In 1990, the USDA-Natural Resources Conservation Service (NRCS) invited prominent scientists to find a solution. It was at an initial meeting that Dr. Andrew Sharpley suggested that P assessment could be modeled after the Universal Soil Loss Equation
-
Nitrous oxide emissions are driven by environmental conditions rather than nitrogen application methods in a perennial hayfield J. Environ. Qual. (IF 2.4) Pub Date : 2023-12-21 Sarah Brickman, Heather Darby, Lindsey Ruhl, E. Carol Adair
Agricultural best management practices (BMPs) intended to solve one environmental challenge may have unintended climate impacts. For example, manure injection is often promoted for its potential to reduce runoff and nitrogen (N) loss as NH3, but the practice has been shown to increase N2O, a powerful greenhouse gas, compared to surface application. Urease inhibitor application with N fertilizer is
-
Soil greenhouse gas flux and nitrogen mineralization following manure application from tannin-fed dairy cows J. Environ. Qual. (IF 2.4) Pub Date : 2023-12-06 Claire A. Romanko, Justin D. Gay, J. Mark Powell, Michel Wattiaux, Carol Barford, Rebecca A. Larson, Matthew D. Ruark
Growing concerns about environmental impacts of dairy farms have driven producers to address greenhouse gas (GHG) emissions and nitrogen (N) losses from soil following land application of dairy manure. Tannin dietary additives have proved to be a successful intervention for mitigating GHG and ammonia (NH3) emissions at the barn scale. However, it is unknown how land application of dairy manure from
-
Ammonia and greenhouse gas emissions from beef feedlot surface material treated with aluminum sulfate (alum) or microbial amendments J. Environ. Qual. (IF 2.4) Pub Date : 2023-12-01 Mindy J. Spiehs, Bryan L. Woodbury
A lab-scale study evaluated ammonia (NH3) and greenhouse gases, emissions when aluminum sulfate (alum) or a microbial product were added to beef feedlot surface material (FSM). Three kilograms of FSM and 1.5 kg of water were added to stainless steel pans (50 cm × 30 cm × 6.5 cm). Treatments included a control (no amendment), 450 g alum, or 0.5 g microbial product. The pans were placed in an environmental
-
-
Multiscale spatiotemporal variability of fecal indicator bacteria and associated particle size distributions in the sandy bottom sediments of a Pennsylvania creek J. Environ. Qual. (IF 2.4) Pub Date : 2023-11-10 Yakov Pachepsky, M. D. Harriger, Christina Panko Graff, Lauren Wyatt-Brown, Matthew Daniel Stocker, Jaclyn Elizabeth Smith
Concentrations of the fecal indicator bacteria (FIB) Escherichia coli and enterococci are used to assess microbial impairment in irrigation and recreation water sources. Although the FIB concentrations’ variability at large temporal scales, such as seasons, and large spatial scales encompassing different land use has been studied, the knowledge about smaller scale variability remains sparse. This work
-
Crop bromide concentrations following methyl bromide fumigation for pale cyst nematode in southeastern Idaho J. Environ. Qual. (IF 2.4) Pub Date : 2023-11-08 Christopher W. Rogers, Juliet M. Marshall, Margaret Moll, Cynthia Curl
Methyl bromide (MeBr) is a sterilizing fumigant used to control quarantine pests that is restricted due to its detrimental atmospheric effects. The degradation of injected MeBr produces crop-available Br−. Up to five applications of MeBr were used in southeastern Idaho fields to combat the pale cyst nematode (Globodera pallida). Data regarding the uptake and partitioning of Br− in crops following MeBr
-
Split fertilizer nitrogen application with a cereal rye cover crop reduces tile nitrate loads in a corn–soybean rotation J. Environ. Qual. (IF 2.4) Pub Date : 2023-11-08 Lowell E. Gentry, John M. Green, Corey A. Mitchell, Luis F. Andino, Michelle K. Rolf, D. Schaefer, Emerson D. Nafziger
Splitting fertilizer nitrogen (N) applications and using cover crops are management strategies to reduce nitrate in tile drainage water. We investigated split fertilizer N applications to corn (Zea mays L.) on crop yields and tile nitrate loss in both corn and soybean (Glycine max L.) in rotation from 2016 through 2019. We evaluated the inclusion of cover crops in a split-N treatment. Fertilizer N
-
Assessment of phosphorus status in a calcareous soil receiving long-term application of chemical fertilizer and different forms of swine manures J. Environ. Qual. (IF 2.4) Pub Date : 2023-11-01 Busayo Kodaolu, Ibrahim Mohammed, Yutao Wang, Tiequan Zhang, Yuki Audette, James Longstaffe
The continuous use of organic inputs in crop production calls for an improved understanding of how these inputs might alter soil phosphorus (P). This study assessed how the continuous application of different forms of swine manure influences the mechanism of P transformation and release potential. Soil samples were collected from a clay loam soil receiving no P or 100 kg P ha−1 applied as either chemical
-
Escherichia coli efflux from rangeland ecosystems in the southcentral Great Plains of the United States J. Environ. Qual. (IF 2.4) Pub Date : 2023-10-30 Austin J. Phillippe, Kevin L. Wagner, Rodney E. Will, Chris B. Zou
Bacterial contamination of surface water is a public health concern. To quantify the efflux of Escherichia coli into ephemeral and intermittent streams and assess its numbers in relation to secondary body contact standards, we monitored runoff and measured E. coli numbers from 10 experimental watersheds that differed in vegetation cover and cattle access in north-central Oklahoma. Escherichia coli
-
Is it raining PFAS in France? An analysis of 52 PFAS at nanogram per liter levels in French rainwaters during autumn season J. Environ. Qual. (IF 2.4) Pub Date : 2023-10-27 Margaux Berthou, Violaine Gérard, Matthieu Pélingre, Alexandra Bagard, Thibault Le Batteux, Guillaume Losfeld
Per- and polyfluoroalkyl substances (PFAS) are of increasing concern due to their pervasive nature, high persistence, and their impacts on human health and the environment. Many studies have attempted to assess the presence of PFAS along the water cycle, but few have analyzed rainwater PFAS content and its contribution to water contamination. The present study aims to improve knowledge by providing
-
Cover crop performance under a changing climate in continuous corn system over Nebraska J. Environ. Qual. (IF 2.4) Pub Date : 2023-10-27 Girma Birru, Andualem Shiferaw, Tsegaye Tadesse, Brian Wardlow, Virginia L. Jin, Marty R. Schmer, Tala Awada, Tulsi Kharel, Javad Iqbal
Fall-planted cover crop (CC) within a continuous corn (Zea mays L.) system offers potential agroecosystem benefits, including mitigating the impacts of increased temperature and variability in precipitation patterns. A long-term simulation using the Decision Support System for Agrotechnology Transfer model was made to assess the effects of cereal rye (Secale cereale L.) on no-till continuous corn yield
-
Carbon and nitrogen dynamics in agricultural soil after application of cattle manure and eastern redcedar wood chips J. Environ. Qual. (IF 2.4) Pub Date : 2023-10-17 Agustin J. Olivo, Eric Henning, Linda Schott, Amy Millmier Schmidt
Uncontrolled proliferation of eastern redcedar tree (Juniperus virginiana) in the Midwest United States requires new alternatives for utilization of waste wood, such as mulching, that promotes efficient tree management by landowners. Similarly, efficient use of manure from animal feeding operations in cropping systems can reduce negative environmental impacts and increase cropland productivity. The
-
Structural and compositional diversity of biosurfactants produced by a novel strain of Sporosarcina luteola ME44 from oil reservoir J. Environ. Qual. (IF 2.4) Pub Date : 2023-10-13 Jia-Yi Li, Yi-Fan Liu, Lei Zhou, Hong-Ze Gang, Jin-Feng Liu, Gang-Zheng Sun, Wei-Dong Wang, Shi-Zhong Yang, Bo-Zhong Mu
The urealytically active microorganism Sporosarcina luteola induces the precipitation of metals, which has attracted attention in biomineralization, bioremediation, and industrial waste recycling. Herein, we report a novel biosurfactant-producing strain of S. luteola ME44 isolated from Chinese Oilfield. The structure, composition, and surface activity of the biosurfactants produced by S. luteola ME44
-
Quantifying the spatiotemporal variability of nitrate in irrigation water across the Wisconsin Central Sands J. Environ. Qual. (IF 2.4) Pub Date : 2023-10-07 Tracy A. Campbell, Kevin C. Masarik, Emily Marrs Heineman, Christopher J. Kucharik
The Wisconsin Central Sands is home to large scale vegetable production on sandy soils and managed with frequent irrigation, fertigation, and widespread nitrogen fertilizer application, all of which make the region highly susceptible to nitrate loss to groundwater. While the groundwater is used as the primary source of drinking water for many communities and rural residences across the region, it is
-
Field-scale evaluation of struvite phosphorus and nitrogen leaching relative to monoammonium phosphate J. Environ. Qual. (IF 2.4) Pub Date : 2023-10-06 Patricia Leon, Yuhei Nakayama, Andrew J. Margenot
Struvite (MgNH4PO4·6H2O) is a wastewater-derived phosphorus (P) fertilizer with potential to reduce P as well as nitrogen (N) losses due to its low water solubility. To test hypothesized lower P and N losses from struvite relative to monoammonium phosphate (MAP), field experiments with a randomized-complete block design were conducted in central (Urbana) Illinois on an Endoaquoll-Argiudoll complex
-
Reply to "Biochar and greenhouse gas emissions: Comment on 'Biochar as a negative emission technology: A synthesis of field research on greenhouse gas emissions'". J. Environ. Qual. (IF 2.4) Pub Date : 2023-10-05 Raj K Shrestha,Pierre-Andre Jacinthe,Rattan Lal,Klaus Lorenz,Maninder P Singh,Scott M Demyan,Wei Ren,Laura E Lindsey
-
Per- and polyfluoroalkyl substances in water treatment residuals: Occurrence and desorption J. Environ. Qual. (IF 2.4) Pub Date : 2023-09-29 Caleb R. Gravesen, Linda S. Lee, Caroline R. Alukkal, Elijah O. Openiyi, Jonathan D. Judy
Per- and polyfluoroalkyl substances (PFAS) in surface and ground waters supplying municipal drinking water are a growing concern. However, PFAS concentrations in water treatment residuals (WTRs)—a solid by-product of water treatment—have yet to be explored. In a first of its kind assessment, we examine PFAS occurrence in seven calcium (Ca)-, iron-, and aluminum-based drinking water treatment residuals
-
Greenhouse gas emissions from soils in corn-based cropping systems J. Environ. Qual. (IF 2.4) Pub Date : 2023-09-23 Maciej J. Kazula, Joseph G. Lauer
Crop rotation is a management practice with high greenhouse gas (GHG) mitigating potential that is often neglected due to economic influences. Three long-term rotation studies in Wisconsin were selected to assess the potential opportunities for mitigating GHG emissions by comparing the temporal and spatial variability of N2O, CO2, and CH4 emissions in continuous corn (CC) (Zea mays L.), corn–soybean
-
Occurrence and persistence of antibiotics administered to cattle in a newly established feedlot J. Environ. Qual. (IF 2.4) Pub Date : 2023-09-22 Brittany Trejo, Matthew Russell, Shannon Bartelt-Hunt, Nasrin Naderi Beni, Daniel D. Snow, Tiffany L. Messer
The practice of using therapeutic and prophylactic veterinary antibiotics in livestock farming is a worldwide phenomenon. Over the last decade, there has been a growing concern of antibiotic residues entering the environment via animal manure. Similar studies have focused on the occurrence and biological effects of antibiotics in land-applied animal feedlots; however, limited research has been conducted
-
Composting post-anaerobic digestion for emerging contaminant biodegradation: Impacts of operating conditions J. Environ. Qual. (IF 2.4) Pub Date : 2023-09-20 Victoria J. Larson, Jorge L. Rico, Lisa M. Wolfe, Sybil Sharvelle, Jessica Prenni, Susan K. De Long
Sustainable manure management technologies are needed, and combining anaerobic digestion (AD) for energy generation and aerobic composting (AC) to stabilize digestate and remove emerging contaminants (ECs), including veterinary pharmaceuticals and steroid hormones, is promising. This study identified post-AD, AC operating conditions that maximized degradation of study ECs, expected to be present in
-
Streambank erosion and phosphorus loading to surface waters: Knowns, unknowns, and implications for nutrient loss reduction research and policy J. Environ. Qual. (IF 2.4) Pub Date : 2023-09-19 Andrew J. Margenot, Shengnan Zhou, Richard McDowell, Thomas Hebert, Garey Fox, Keith Schilling, Shawn Richmond, John L. Kovar, Niranga Wickramarathne, Dean Lemke, Kathy Boomer, Shani Golovay
To monitor and meet water quality objectives, it is necessary to understand and quantify the contribution of nonpoint sources to total phosphorus (P) loading to surface waters. However, the contribution of streambank erosion to surface water P loads remains unclear and is typically unaccounted for in many nutrient loading assessments and policies. As a result, agricultural contributions of P are overestimated
-
Pig slurry organic matter transformation and methanogenesis at ambient storage temperatures J. Environ. Qual. (IF 2.4) Pub Date : 2023-09-13 Frederik Rask Dalby, Herald Wilson Ambrose, Jan Struckmann Poulsen, Jeppe Lund Nielsen, Anders Peter S. Adamsen
Manure management is a significant source of global methane emissions, and there is an increased interest in understanding and predicting emissions. The hydrolysis rate of manure organic matter is critical for understanding and predicting methane emissions. We estimated hydrolysis rate constants of crude protein, fibers, and lipids and used the Arrhenius equation to describe its dependency on temperature
-
Insights on biotic and abiotic 2,4-dichlorophenoxyacetic acid degradation by anaerobic iron-cycling bacteria J. Environ. Qual. (IF 2.4) Pub Date : 2023-09-10 Zackry Stevenson, Hui Tong, Elizabeth D. Swanner
The use of the phenoxy herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) has been steadily increasing in recent years due to its selectivity against broad-leafed weeds and use on genetically modified crops resistant to 2,4-D. This increases the likelihood of 2,4-D persisting in agriculturally impacted soils, sediments, and aquatic systems. Aerobic microorganisms are capable of degrading 2,4-D enzymatically
-
Effect of organic carbon structures on the degradation of nonylphenol by hydrogen peroxide in sediment–water system J. Environ. Qual. (IF 2.4) Pub Date : 2023-09-08 Yongli Zhang, Xianglan Kong, Yu Yang, Yong Ran
A laboratory experiment is conducted to investigate the effects of organic carbon (OC) from riverine and marine sediments on the degradation of ring-14C-labeled nonylphenol (14C-NP) by hydrogen peroxide (H2O2). Researchers have isolated demineralized OC (DM) before and after oxidation, namely, DM and resistant OC (ROC) fractions, respectively. The structures of DM and ROC are characterized using solid-state
-
Effects of drinking water treatment residual amendments to biosolids on plant uptake of per- and polyfluoroalkyl substances J. Environ. Qual. (IF 2.4) Pub Date : 2023-09-08 Emma Broadbent, Caleb Gravesen, Youn Jeong Choi, Linda Lee, Patrick C. Wilson, Jonathan D. Judy
Drinking water treatment residuals (DWTRs), solid by-products of drinking water treatment, are dominated by calcium (Ca), iron (Fe), or aluminum (Al), depending on the coagulant used. DWTRs are often landfilled, but current research is exploring options for beneficial reuse. Previous studies have shown that Al- and Fe-rich materials have potential to reduce the mobility of per- and polyfluoroalkyl
-
Issue Information J. Environ. Qual. (IF 2.4) Pub Date : 2023-09-03
On the cover: A study field in southern Ontario, Canada, during winter after a rainfall event in February. A subsequent re-freeze the following day caused the remaining ponded water on the surface to freeze in place, as is typical in this near-level region. This winter photo highlights a critical time for nutrient movement from fields into tributaries. See M. Macrae et al., “Trade-offs in nutrient
-
Simulating fate and transport of non-steroidal anti-inflammatory drugs using Root Zone Water Quality Model 2 J. Environ. Qual. (IF 2.4) Pub Date : 2023-09-03 Weixi Shu, Gordon W. Price, Rob Jamieson, Craig Lake
The fate and transport of non-steroidal anti-inflammatory drugs (NSAIDs) in soil are determined by various processes, and the complexity of the system lends itself to the use of computer simulation models to help understand it. This study demonstrated the first attempt to use empirical data from lab incubation and field studies to parameterize and test a process-based agricultural systems model, Root
-
Evaluation of nutrient assimilative capacity in waterfowl impoundments: The role of environmental stressors J. Environ. Qual. (IF 2.4) Pub Date : 2023-08-13 Rachel L. Wood, John M. Stark, Zachary T. Aanderud, Michelle A. Baker
The effectiveness of wetlands in sequestering nutrients and improving water quality relies on a suite of abiotic and biotic conditions. To more fully understand the restraints on nutrient removal, especially salinity and plant cover, we created field-scale mesocosms and monitored nutrient sequestration with nutrient additions and isotopic pool dilutions over 2 years in two wetlands near the Great Salt
-
Nitrogen removal performance in roadside stormwater bioretention cells amended with drinking water treatment residuals J. Environ. Qual. (IF 2.4) Pub Date : 2023-08-12 Carl Betz, Michael R. Ament, Stephanie E. Hurley, Eric D. Roy
Bioretention cells, a type of green stormwater infrastructure, have been shown to reduce runoff volumes and remove a variety of pollutants. The ability of bioretention cells to remove nitrogen and phosphorus, however, is variable, and bioretention soil media can act as a net exporter of nutrients. This is concerning as excess loading of nitrogen and phosphorus can lead to eutrophication of surface
-
Enhancing dissolved inorganic phosphorous capture by gypsum-incorporated biochar: Synergic performance and mechanisms J. Environ. Qual. (IF 2.4) Pub Date : 2023-08-09 Sarmila Katuwal, Sophie Circenis, Linduo Zhao, Wei Zheng
Excess nutrients, such as phosphorus (P), in watersheds jeopardize water quality and trigger harmful algal blooms. Using phosphorus sorption material (PSM) to capture P from wastewater and agricultural runoff can help recover nutrients and prevent their water pollution. In this study, a novel designer biochar was generated by pyrolyzing woody biomass pretreated with a flue gas desulfurization gypsum
-
Biochar impacts on soil nitrogen and carbon dynamics in a Spodosol amended with biosolids and inorganic fertilizer J. Environ. Qual. (IF 2.4) Pub Date : 2023-07-21 Yanyan Lu, Maria Lucia Silveira, Joao M. B. Vendramini, Yuncong Li
Despite evidence suggesting that biochar can retain nutrients, particularly nitrogen (N), and reduce the risks of transport, research on the co-application of biochar with organic and inorganic fertilizer sources is limited. Three laboratory studies (herein referred to as static incubation, column leaching, and batch sorption) were conducted to evaluate the impacts of two biochar materials (pine and
-
Phytoremediation of Cu-contaminated vineyard soils in Brazil: A compendium of Brazilian pot studies J. Environ. Qual. (IF 2.4) Pub Date : 2023-07-19 Anderson Cesar Ramos Marques, Tadeu Luis Tiecher, Gustavo Brunetto, Diogo Vendruscolo, Lessandro De Conti, Vitor Gabriel Ambrosini, Alcione Miotto, Daniel José Rosa, Isley Cristiellem Bicalho da Silva, Edicarla Trentin, Paulo Ademar Avelar Ferreira, Rodrigo Josemar Seminoti Jacques, Rosete Pescador, Jucinei José Comin, Carlos Alberto Ceretta, George Wellington Bastos de Melo, Léon-Étienne Parent
Vineyard soils can be contaminated by copper (Cu) due to successive applications of fungicides and organic fertilizers. Soil remediation can be addressed by altering soil properties or selecting efficient Cu-extracting cover crops tolerant to Cu toxicity. Our objectives were to synthesize the Cu-extracting efficiency by plant species tested in Brazil, classify them according to Cu resistance to toxicity
-
Trade-offs in nutrient and sediment losses in tile drainage from no-till versus conventional conservation-till cropping systems J. Environ. Qual. (IF 2.4) Pub Date : 2023-07-14 M. L. Macrae, J. M. Plach, R. Carlow, C. Little, H. P. Jarvie, K. McKague, W. T. Pluer, P. Joosse
Nutrient and soil loss from agricultural areas impairs surface water quality globally. In the Great Lakes region, increases in the frequency and magnitude of harmful and nuisance algal blooms in freshwater lakes have been linked to elevated phosphorus (P) losses from agricultural fields, some of which are transported via tile drainage. This study examined whether concentrations and loads of P fractions
-
Intended and unintended impacts of nitrogen-fixing microorganisms and microbial inhibitors on nitrogen losses in contrasting maize cropping systems J. Environ. Qual. (IF 2.4) Pub Date : 2023-06-30 Emerson F. C. Souza, Carl J. Rosen, Rodney T. Venterea, Muhammad Tahir
Efforts to mitigate the nitrogen (N) footprint of maize production include using N-fixing microbes (NFM) and/or microbial inhibitors. We quantified the effects of NFM, the nitrification inhibitor (NI) 2-(N-3,4-dimethyl-1H-pyrazol-1-yl) succinic acid isomeric mixture, and the urease inhibitor (UI) N-(n-butyl) thiophosphoric triamide, each applied by itself or paired with another additive, on nitrous
-
Potential of biochar for hydrocarbon degradation of crude oil–contaminated soils J. Environ. Qual. (IF 2.4) Pub Date : 2023-06-10 Abiola O. Saliu, Babalola E. Akinpelumi, Bolaji A. Najeemdeen
A greenhouse experiment was conducted to assess the effect of phytoremediation and biochar application on hydrocarbon degradation in crude oil–contaminated soils. The experiment consisted of four levels of biochar application (0, 5, 10, and 15 t/ha) and the presence or absence of Vigna unguiculata (cowpea; +C, −C) replicated thrice and arranged in a 4 × 2 × 3 factorial completely randomized design
-
Natural sources and controlling factors of urea–nitrogen concentrations in agricultural drainage ditches J. Environ. Qual. (IF 2.4) Pub Date : 2023-06-09 Sabrina A. Klick, Joseph S. Pitula, Ray B. Bryant, Amy S. Collick, Eric B. May, Oliva Pisani
Agricultural drainage ditches accumulate high urea–nitrogen (N) concentrations even in the absence of urea fertilizer applications to adjacent crop fields. The accumulated urea, and other bioavailable forms of dissolved organic nitrogen (DON), can be flushed downstream during substantial rainfall events altering downstream water quality and phytoplankton communities. Sources of urea–N supporting its
-
How many microplastic particles are present in Canadian biosolids? J. Environ. Qual. (IF 2.4) Pub Date : 2023-06-09 Branaavan Sivarajah, David R. Lapen, Sarah B. Gewurtz, Shirley Anne Smyth, Jennifer F. Provencher, Jesse C. Vermaire
Application of treated sewage sludge (biosolids) from wastewater treatment plants (WWTPs) to farmlands is an important pathway through which microplastic particles (MPs) enter terrestrial ecosystems. Yet, microplastic concentrations in Canadian biosolids have only been estimated in samples from four WWTPs previously. We aimed to fill this knowledge gap by quantifying microplastics in biosolids from
-
Erratum to: Improving nitrogen retention of cattle slurry with oxidized biochar: An incubation study with three different soils J. Environ. Qual. (IF 2.4) Pub Date : 2023-06-08
Xinyue Cao,* Rüdiger Reichel, Holger Wissel, Nicolas Brüggemann Correspondence Email: x.cao@fz-juelich.de The authors noted an error in the original article, section 2.2, first sentence of paragraph 3. The phrase “The total C content of untreated and oxidized biochar was 30 and 48%” should read as follows: “The total C content of untreated and oxidized biochar was 72 and 62” (corrections in bold).