Grazing management effects on sediment, phosphorus, and pathogen loading of streams in cool-season grass pastures.

abstract：:Pharmaceuticals used in animal feeding operations have been detected in various environmental settings. There is a growing concern about the impact on terrestrial and aquatic organisms and the development of antibiotic-resistant strains of microorganisms. Pharmaceutical use in milking cows is relatively limited compar...

journal_title：Journal of environmental quality

authors： Watanabe N,Harter TH,Bergamaschi BA

更新日期：2008-09-01 00:00:00

abstract：:Bioalkylation and colloid formation of selenium during selenate removal in upflow anaerobic sludge bed (UASB) bioreactors was investigated. The mesophilic (30 degrees C) UASB reactor (pH = 7.0) was operated for 175 d with lactate as electron donor at an organic loading rate of 2 g COD L(-1) d(-1) and a selenium loadin...

journal_title：Journal of environmental quality

authors： Lenz M,Smit M,Binder P,van Aelst AC,Lens PN

更新日期：2008-08-08 00:00:00

abstract：:Greater demand for corn ( L.) stover for bioenergy use may lead to increased corn production acreage with minimal surface residue cover, resulting in greater risk for soil erosion and phosphorus (P) losses in runoff. A rainfall simulation study was conducted to determine the effects of spring-applied dairy cow () manu...

journal_title：Journal of environmental quality

authors： Yagüe MR,Andraski TW,Laboski CA

更新日期：2011-11-01 00:00:00

abstract：:Soils support ecosystem functions such as plant growth and water quality because of certain physical, chemical, and biological properties. These properties have been studied at different spatial scales, including point scales to satisfy basic research needs, and regional scales to satisfy monitoring needs. Recently, s...

journal_title：Journal of environmental quality

authors： Shirazi MA,Boersma L,Haggerty PK,Johnson CB

更新日期：2001-01-01 00:00:00

abstract：:Triclosan (TCS) and triclocarban (TCC), widely used as antibacterial agents, have been frequently detected in biosolids. Biosolids land application may introduce pharmaceuticals and personal care products (PPCPs) such as TCS and TCC into the environment. Microcosm studies were conducted to investigate TCS and TCC tran...

journal_title：Journal of environmental quality

authors： Kwon JW,Armbrust KL,Xia K

更新日期：2010-07-01 00:00:00

abstract：:The objectives of this study were to determine the effect of bedding material (corn stover, soybean stover, wheat straw, switchgrass, wood chips, wood shavings, corn cobs, and shredded paper) on concentration of odorous volatile organic compounds (VOC) in bedded pack material and to determine the effect of bedding mat...

journal_title：Journal of environmental quality

authors： Spiehs MJ,Brown-Brandl TM,Parker DB,Miller DN,Berry ED,Wells JE

更新日期：2013-01-01 00:00:00

abstract：:Livestock impacts on total suspended solids (TSS) and pathogen (e.g., ) levels in rangeland streams are a serious concern worldwide. Herded stream crossings by domestic sheep () are periodic, necessary managerial events on high-elevation rangelands, but their impacts on stream water quality are largely unknown. We eva...

journal_title：Journal of environmental quality

authors： Clark PE,Moffet CA,Lewis GS,Seyfried MS,Hardegree SP,Pierson FB

更新日期：2012-09-01 00:00:00

abstract：:Alum [Al(SO4) ·14HO] addition to poultry litter has been shown to reduce ammonia (NH) concentrations in poultry houses; however, its effects on greenhouse gas (GHG; NO, CH, and CO) emissions is unknown. The objectives of this study were to determine the effects of alum additions on (i) in-house NH and GHG concentratio...

journal_title：Journal of environmental quality

authors： Eugene B,Moore PA,Li H,Miles D,Trabue S,Burns R,Buser M

更新日期：2015-09-01 00:00:00

abstract：:The Summitville Mine was a high-elevation (3500 m) gold mine in southwestern Colorado. The mine was abandoned in 1992, leaving approximately 200 ha of disturbance comprised partially of an open pit, a cyanide heap leach pad, and two large waste rock piles. Reclamation of these mine facilities is challenging due to ext...

journal_title：Journal of environmental quality

authors： Sydnor ME,Redente EF

更新日期：2002-09-01 00:00:00

abstract：:Bacterial extracellular polymers (BEP) affect the translocation and fate of organic and inorganic pollutants in terrestrial and aquatic ecosystems. In this study, BEP from activated sludge was compared with sludge dissolved organic matter (DOM) in terms of behavior and effects on the mobilization and bioavailability o...

journal_title：Journal of environmental quality

authors： Zhou LX,Zhou SG,Zhan XH

更新日期：2004-01-01 00:00:00

abstract：:Most phosphorus (P) modeling studies of water quality have focused on surface runoff loses. However, a growing number of experimental studies have shown that P losses can occur in drainage water from artificially drained fields. In this review, we assess the applicability of nine models to predict this type of P loss....

journal_title：Journal of environmental quality

authors： Radcliffe DE,Reid DK,Blombäck K,Bolster CH,Collick AS,Easton ZM,Francesconi W,Fuka DR,Johnsson H,King K,Larsbo M,Youssef MA,Mulkey AS,Nelson NO,Persson K,Ramirez-Avila JJ,Schmieder F,Smith DR

更新日期：2015-03-01 00:00:00

abstract：:Nitrogen (N) and phosphorus (P) loading from the Mississippi/Atchafalaya River Basin (MARB) has been linked to hypoxia in the Gulf of Mexico. To describe where and from what sources those loads originate, SPAtially Referenced Regression On Watershed attributes (SPARROW) models were constructed for the MARB using geosp...

journal_title：Journal of environmental quality

authors： Robertson DM,Saad DA

更新日期：2013-09-01 00:00:00

abstract：:The interaction of sulfonamide antimicrobial agents with smectite clay minerals and humic acid (HA)-clay complexes was investigated in batch experiments to assess the influence of adsorbed humic acid on sulfonamide sorption. Soil HA-clay complexes were produced at HA:clay ratios of 1:5, 1:50, and 1:100 (w/w). Vibratio...

journal_title：Journal of environmental quality

authors： Gao J,Pedersen JA

更新日期：2009-12-30 00:00:00

abstract：:Atmospheric deposition samples were collected over 15 mo at several locations near an operating smelter and an abandoned Pb smelter to investigate the contribution of Pb smelting to depositional fluxes and potential local air quality degradation. Samples were analyzed for As, Cd, Cu, Pb, and Zn and subjected to scanni...

journal_title：Journal of environmental quality

authors： Xing W,Yang H,Ippolito JA,Zhao Q,Zhang Y,Scheckel KG,Li L

更新日期：2020-11-01 00:00:00

abstract：:Quantifying and managing diffuse P losses from small catchments or at the farm scale requires detailed knowledge of farming practices and their interaction with catchment processes. However, detailed knowledge may not be available and hence modeling is required. This paper demonstrates two approaches to developing too...

journal_title：Journal of environmental quality

authors： McDowell RW,Nash D,George A,Wang QJ,Duncan R

更新日期：2009-08-24 00:00:00

abstract：:Mechanistic, predictive equations for phosphorus (P) transport in runoff from manure-applied fields constitute a critical knowledge gap for developing nonpoint-source pollution models. We derived two simple equations to describe the P release from animal manure during a rainfall event-one based on first-order P desorp...

journal_title：Journal of environmental quality

authors： Gérard-Marchant P,Walter MT,Steenhuis TS

更新日期：2005-04-20 00:00:00

abstract：:Based on limited data for the removal of radioactive (99)Tc by freshwater phytoplankton, it has been thought that phytoplankton are unsuitable for remediation of (99)Tc-contaminated waters. This work sought to verify the validity of this assumption by studying the removal of (99)TcO(4)(-) by freshwater and brackish wa...

journal_title：Journal of environmental quality

authors： Ishii N,Uchida S

更新日期：2006-10-27 00:00:00

abstract：:Livestock slurry is a major source of atmospheric methane (CH), but surface crusts harboring methane-oxidizing bacteria (MOB) could mediate against CH emissions. This study examined conditions for CH oxidation by in situ measurements of oxygen (O) and nitrous oxide (NO), as a proxy for inorganic N transformations, in ...

journal_title：Journal of environmental quality

authors： Duan YF,Reinsch S,Ambus P,Elsgaard L,Petersen SO

更新日期：2017-07-01 00:00:00

abstract：:Water treatment residuals (WTRs) are a by-product of municipal drinking water treatment plants and can have the capacity to adsorb tremendous amounts of P. Understanding the WTR phosphorus adsorption process is important for discerning the mechanism and tenacity of P retention. We studied P adsorbing mechanism(s) of a...

journal_title：Journal of environmental quality

authors： Ippolito JA,Barbarick KA,Heil DM,Chandler JP,Redente EF

更新日期：2003-09-01 00:00:00

abstract：:Excess NO leaching from the agricultural Midwest via tile drainage water has contributed to both local drinking water and national Gulf of Mexico benthic hypoxia concerns. Both in-field and edge-of-field practices have been designed to help mitigate NO flux to surface waters. Edge-of-field practices focus on maximizin...

journal_title：Journal of environmental quality

authors： Groh TA,Davis MP,Isenhart TM,Jaynes DB,Parkin TB

更新日期：2019-03-01 00:00:00

abstract：:Beneficial and environmentally safe recycling of flue gas desulfurization (FGD) products requires detailed knowledge of their chemical and physical properties. We analyzed 59 dry FGD samples collected from 13 locations representing four major FGD scrubbing technologies. The chemistry of all samples was dominated by Ca...

journal_title：Journal of environmental quality

authors： Kost DA,Bigham JM,Stehouwer RC,Beeghly JH,Fowler R,Traina SJ,Wolfe WE,Dick WA

更新日期：2005-03-01 00:00:00

abstract：:A commonly used method of measuring enteric methane (CH4) emissions from ruminants is the SF6 tracer technique that measures respired and eructated CH4. However, within the animal, a small proportion of CH4 is produced post-ruminally and some of this may escape through the rectum. The comparison of emissions using a c...

journal_title：Journal of environmental quality

authors： McGinn SM,Beauchemin KA,Iwaasa AD,McAllister TA

更新日期：2006-08-09 00:00:00

abstract：:Sources and molecular composition of dissolved organic matter (DOM) in coastal rivers have been tightly linked with its reactivity and fate, thus influencing element and nutrient cycling. The DOM in coastal rivers is usually sourced from both terrestrial and marine inputs, with further complication by anthropogenic ac...

journal_title：Journal of environmental quality

authors： He D,He C,Li P,Zhang X,Shi Q,Sun Y

更新日期：2019-05-01 00:00:00

abstract：:DIMBOA (3,4-dihydro-2,4-dihydroxy-7-methoxy-2H-1,4-benzoxazin-3-one), a major benzoxazinone of Poaceae plants, was isolated and purified from corn seedlings. The effect of isolated and purified DIMBOA on the degradation of atrazine [2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine], and its toxic breakdown produc...

journal_title：Journal of environmental quality

authors： Wenger K,Bigler L,Suter MJ,Schönenberger R,Gupta SK,Schulin R

更新日期：2005-11-07 00:00:00

abstract：:Phosphorus (P) budgets for large watersheds are often used to predict trends in riverine P export. To test such predictions, we calculated annual P budgets for 1975-1995 for soils of the Maumee and Sandusky watersheds of northwestern Ohio and compared them with riverine P export from these watersheds. Phosphorus input...

journal_title：Journal of environmental quality

authors： Baker DB,Richards RP

更新日期：2002-01-01 00:00:00

abstract：:Integrated buffer zones (IBZs) have recently been introduced in the Northwestern Europe temperate zone to improve delivery of ecosystem services compared with the services associated with long-established vegetated buffer zones. A common feature of all the studied IBZ sites is that tile drainage, which previously disc...

journal_title：Journal of environmental quality

authors： Zak D,Stutter M,Jensen HS,Egemose S,Carstensen MV,Audet J,Strand JA,Feuerbach P,Hoffmann CC,Christen B,Hille S,Knudsen M,Stockan J,Watson H,Heckrath G,Kronvang B

更新日期：2019-03-01 00:00:00

abstract：:Acid waste bentonite is a byproduct from vegetable oil bleaching that is acidic (pH < 3.0) and hydrophobic. These materials are currently disposed of in landfills and could potentially have a negative impact on the effective function of microbes that are intolerant of acidic conditions. A study was undertaken using th...

journal_title：Journal of environmental quality

authors： Soda W,Noble AD,Suzuki S,Simmons R,Sindhusen LA,Bhuthorndharaj S

更新日期：2006-10-27 00:00:00

abstract：:Pasture management and broiler litter application rate are critical factors influencing the magnitude of nutrients being transported by runoff from fields. We investigated the impact of pasture management and broiler litter application rate on nutrient runoff from bermudagrass (Cynodon dactylon) pastures. The experime...

journal_title：Journal of environmental quality

authors： Sistani KR,Brink GE,Oldham JL

更新日期：2008-03-01 00:00:00

abstract：:Determination of sorption of hydrophilic, weakly sorbing organic compounds in soil by conventional batch methods using a slurried suspension is often prone to considerable errors because small changes in the solution concentration on equilibration must be accurately determined. This difficulty is exacerbated for compo...

journal_title：Journal of environmental quality

authors： Ahmad R,Katou H,Kookana RS

更新日期：2005-05-11 00:00:00

abstract：:Transport of phosphorus (P) from agricultural fields to water bodies deteriorates water quality and causes eutrophication. To reduce P losses and optimize P use efficiency by crops, better knowledge is needed of P turnover in soil and the efficiency of best management practices (BMPs). In this review, we examined thes...

journal_title：Journal of environmental quality

authors： Bergström L,Kirchmann H,Djodjic F,Kyllmar K,Ulén B,Liu J,Andersson H,Aronsson H,Börjesson G,Kynkäänniemi P,Svanbäck A,Villa A

更新日期：2015-03-01 00:00:00