Upper washita river experimental watersheds: multiyear stability of soil water content profiles.

abstract：:This study compares the performance of three bioretention media blends for N and P removal from simulated urban runoff in experimental mesocosms. TerraSolve, Biofilter, and "VT Mix" (Virginia Tech) were compared with and without vegetation at varying hydraulic residence times (HRTs). Adsorption isotherm experiments we...

journal_title：Journal of environmental quality

authors： Liu J,Sample DJ,Owen JS,Li J,Evanylo G

更新日期：2014-09-01 00:00:00

abstract：:Adding phytase and 25- hydroxycholecalciferol (25-OH D(3)) to broiler diets has been shown effective at reducing total P concentrations in broiler litter. This study was conducted to determine the impact of field application of broiler litter from modified diets on P solubility in litter-amended soils and P losses in ...

journal_title：Journal of environmental quality

authors： McGrath JM,Sims JT,Maguire RO,Saylor WW,Angel R

更新日期：2009-12-30 00:00:00

abstract：:Agriculture in the midwestern United States is a major anthropogenic source of nitrous oxide (NO) and is both a source and sink for methane (CH), but the degree to which cropping systems differ in emissions of these gases is not well understood. Our objectives were to determine if fluxes of NO and CH varied among crop...

journal_title：Journal of environmental quality

authors： Osterholz WR,Kucharik CJ,Hedtcke JL,Posner JL

更新日期：2014-11-01 00:00:00

abstract：:From 1974 to 1984, 543 Mg ha(-1) of biosolids were applied to portions of a land-reclamation site in Fulton County, IL. Soil organic C increased to 5.1% then decreased significantly (p < 0.01) to 3.8% following cessation of biosolids applications (1985-1997). Metal concentrations in amended soils (1995-1997) were not ...

journal_title：Journal of environmental quality

authors： Granato TC,Pietz RI,Knafl GJ,Carlson CR Jr,Tata P,Lue-Hing C

更新日期：2004-11-01 00:00:00

abstract：:Batch sequential extraction techniques for fractionating metals or metalloids in soils are time consuming and subject to several potential errors. The development of a continuous-flow sequential extraction method for soil As is described and assessed, having the benefits of simplicity, rapidity, less risk of contamina...

journal_title：Journal of environmental quality

authors： Shiowatana J,McLaren RG,Chanmekha N,Samphao A

更新日期：2001-11-01 00:00:00

abstract：:Manure from beef cattle feedyards is a valuable source of nutrients and assists with maintaining soil quality. However, humification and decomposition processes occurring during feedyard manure's on-farm life cycle influence the forms, concentrations, and availability of carbon (C) and nutrients such as nitrogen (N) a...

journal_title：Journal of environmental quality

authors： Waldrip HM,He Z,Todd RW,Hunt JF,Rhoades MB,Cole NA

更新日期：2014-03-01 00:00:00

abstract：:Estimation of pesticide volatilization from plants is difficult because of our poor understanding of foliar penetration by pesticides, which governs the amount of pesticide available for volatilization from the leaf surface. The description of foliar penetration is still incomplete because experimental measurements of...

journal_title：Journal of environmental quality

authors： Lichiheb N,Bedos C,Personne E,Benoit P,Bergheaud V,Fanucci O,Bouhlel J,Barriuso E

更新日期：2015-11-01 00:00:00

abstract：:Chesapeake Bay has been the subject of intensive research on cultural eutrophication and extensive efforts to reduce nutrient inputs. In 1987 a commitment was made to reduce controllable sources of nitrogen (N) and phosphorous (P) by 40% by the year 2000, although the causes and effects of eutrophication were incomple...

journal_title：Journal of environmental quality

authors： Boesch DF,Brinsfield RB,Magnien RE

更新日期：2001-03-01 00:00:00

abstract：:Three promising phytoextracting perennial weed species [ L. (ox-eye daisy), L. (curly dock), and L. (Canada goldenrod)] were planted in monoculture plots at two polychlorinated biphenyl (PCB)-contaminated sites in southern Ontario and followed over 2 yr to investigate the effects of plant age, contaminant characteri...

journal_title：Journal of environmental quality

authors： Ficko SA,Rutter A,Zeeb BA

更新日期：2011-11-01 00:00:00

abstract：:Livestock manure applications on fields can be a source of contamination in water resources, including groundwater. Although fecal indicators like have often been detected in tile drainage systems, few studies have monitored groundwater at depth after manure treatments, especially at sites with a deep, heterogeneous v...

journal_title：Journal of environmental quality

authors： Arnaud E,Best A,Parker BL,Aravena R,Dunfield K

更新日期：2015-09-01 00:00:00

abstract：:The Universal Soil Loss Equation (USLE) and its derivatives are widely used for identifying watersheds with a high potential for degrading stream water quality. We compared sediment yields estimated from regional application of the USLE, the automated revised RUSLE2, and five sediment delivery ratio algorithms to meas...

journal_title：Journal of environmental quality

authors： Boomer KB,Weller DE,Jordan TE

更新日期：2008-01-04 00:00:00

abstract：:Municipal programs for turfgrass establishment recommend large volume-based application rates of composted municipal biosolids (CMB). This study compared runoff water quality among combinations of two common turfgrass establishment practices and two CMB sources. Bryan- or Austin-CMB were incorporated into 5 cm of soil...

journal_title：Journal of environmental quality

authors： Hansen NE,Vietor DM,Munster CL,White RH,Provin TL

更新日期：2007-05-25 00:00:00

abstract：:Although the importance of vascular plant-derived dissolved organic carbon (DOC) in freshwater systems has been studied, the role of leached DOC as precursors of disinfection byproducts (DBPs) during drinking water treatment is not well known. Here we measured the propensity of leachates from four crops and four aquat...

journal_title：Journal of environmental quality

authors： Pellerin BA,Hernes PJ,Saraceno J,Spencer RG,Bergamaschi BA

更新日期：2010-04-13 00:00:00

abstract：:Decay rates are central parameters in modeling pesticide fate and transport in the environment. Pesticide decay is usually modeled as a first-order process, and variations in half-life can have significant impacts on model predictions. Decay rates for the foliage and thatch components of turf are scarce, and most simu...

journal_title：Journal of environmental quality

authors： Magri A,Haith DA

更新日期：2009-01-13 00:00:00

abstract：:Soil spatial variability has a profound influence on most agronomic and environmental processes at field and landscape scales, including site-specific management, vadose zone hydrology and transport, and soil quality. Mobile sensors are a practical means of mapping spatial variability because their measurements serve ...

journal_title：Journal of environmental quality

authors： Scudiero E,Lesch SM,Corwin DL

更新日期：2016-07-01 00:00:00

abstract：:Concentrated animal feeding operations are major sources of ammonia to the atmosphere. Control methods to reduce emissions include acidifying amendments, urease inhibitors, and absorbents. For beef cattle, decreasing crude protein (CP) in diets may be the most practical and cost-effective method to reduce ammonia emis...

journal_title：Journal of environmental quality

authors： Todd RW,Cole NA,Clark RN

更新日期：2006-02-02 00:00:00

abstract：:Greenhouse gas (GHG) emission measurements from livestock excreta in Africa are limited. We measured CH and NO emissions from excreta of six Boran () and six Friesian () steers near Nairobi, Kenya. The steers were fed one of three diets (T1 [chaffed wheat straw], T2 [T1 + Meissner - 0.2% live weight per day], and T3 [...

journal_title：Journal of environmental quality

authors： Pelster DE,Gisore B,Goopy J,Korir D,Koske JK,Rufino MC,Butterbach-Bahl K

更新日期：2016-09-01 00:00:00

abstract：:Manure application supplies plant nutrients, but also leads to trace element accumulation in soil. This study investigated total and EDTA-extractable B, Cd, Co, Cu and Zn in soil after 25 annual manure applications. The residual effect of 14 annual manure applications followed by 11 yr with no applications was also in...

journal_title：Journal of environmental quality

authors： Benke MB,Indraratne SP,Hao X,Chang C,Goh TB

更新日期：2008-05-02 00:00:00

abstract：:Fertilizer leaching affects farm profitability and contributes to nonpoint-source pollution of receiving waters. This work aimed to establish nitrate nitrogen export from La Violada Gully in relation to nitrogen fertilization practices in its basin (La Violada Gully watershed, VGW, 19,637 ha) and especially in La Viol...

journal_title：Journal of environmental quality

authors： Isidoro D,Quílez D,Aragüés R

更新日期：2006-04-03 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：: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：:Theories suggest that rapid microbial growth rates lead to quicker development of metal resistance. We tested these theories by adding hexavalent chromium [Cr(VI)] to soil, sowing Indian mustard (Brassica juncea), and comparing rhizosphere and bulk soil microbial community responses. Four weeks after the initial Cr(VI...

journal_title：Journal of environmental quality

authors： Ipsilantis I,Coyne MS

更新日期：2007-04-05 00:00:00

abstract：:With increasing concern over potential polltion from farm wastes, there is a need for rapid and robust methods that can analyze livestock manure nutrient content. The near infrared spectroscopy (NIRS) method was used to determine nutrient content in diverse poultry manure samples (n=91). Various standard preprocessing...

journal_title：Journal of environmental quality

authors： Chen LJ,Xing L,Han LJ

更新日期：2010-09-01 00:00:00

abstract：:There is interest in understanding effects of amending soil with manure in a cultivation setting and if composting can provide benefits. Raw or composted manure from cattle administered with and without sulfamethazine, chlortetracycline, and tylosin was amended to loamy sand and silty clay loam soils, where lettuce ( ...

journal_title：Journal of environmental quality

authors： Chen C,Guron GK,Pruden A,Ponder M,Du P,Xia K

更新日期：2018-11-01 00:00:00

abstract：:Proper management of shallow coastal systems, which are vulnerable to nutrient enrichment, requires knowledge of land use impacts on nutrient discharges. This study quantified base flow nutrient concentrations and yields for 1 yr (May 2001-April 2002) from 14 first-order streams on the Virginia Eastern Shore (VaES) on...

journal_title：Journal of environmental quality

authors： Stanhope JW,Anderson IC,Reay WG

更新日期：2009-08-24 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：:Land application of co-produced waters from coalbed natural gas (CBNG) wells is one management option used in the Powder River Basin (PRB) of Wyoming and Montana. Unfortunately, the co-produced CBNG waters may be saline and/or sodic. The objective of this study was to examine the effects of irrigation with CBNG waters...

journal_title：Journal of environmental quality

authors： Vance GF,King LA,Ganjegunte GK

更新日期：2008-09-01 00:00:00

abstract：:Is nitrate harmful to humans? Are the current limits for nitrate concentration in drinking water justified by science? There is substantial disagreement among scientists over the interpretation of evidence on the issue. There are two main health issues: the linkage between nitrate and (i) infant methaemoglobinaemia, a...

journal_title：Journal of environmental quality

authors： Powlson DS,Addiscott TM,Benjamin N,Cassman KG,de Kok TM,van Grinsven H,L'Hirondel JL,Avery AA,van Kessel C

更新日期：2008-02-11 00:00:00

abstract：:Ammonia is an important air and water pollutant, but the spatial variation in its concentrations presents technical difficulties in accurate determination of ammonia emissions from animal feeding operations. The objectives of this study were to investigate the relationship between ammonia volatilization and delta15N o...

journal_title：Journal of environmental quality

authors： Hristov AN,Zaman S,Vander Pol M,Ndegwa P,Campbell L,Silva S

更新日期：2009-10-29 00:00:00

abstract：:Although many studies have measured denitrification in stream sediments, few have utilized these data with local water column and sediment measurements to develop a predictive model for NO uptake. In this study, sediment denitrification was measured from cores in five streams under various land uses in south-central M...

journal_title：Journal of environmental quality

authors： Guentzel KS,Hondzo M,Badgley BD,Finlay JC,Sadowsky MJ,Kozarek JL

更新日期：2014-05-01 00:00:00