Risk assessment of unsuitable winter conditions for manure and nutrient application across Ontario.

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：:In this study, seven organic amendments (biosolid compost, farm yard manure, fish manure, horse manure, spent mushroom, pig manure, and poultry manure) were investigated for their effects on the reduction of hexavalent chromium [chromate, Cr(VI)] in a mineral soil (Manawatu sandy soil) low in organic matter content. A...

journal_title：Journal of environmental quality

authors： Bolan NS,Adriano DC,Natesan R,Koo BJ

更新日期：2003-01-01 00:00:00

abstract：:Field-scale relationships between soil test phosphorus (STP) and flow-weighted mean concentrations (FWMCs) of dissolved reactive phosphorus (DRP) and total phosphorus (TP) in runoff are essential for modeling phosphorus losses, but are lacking. The objectives of this study were (i) to determine the relationships betwe...

journal_title：Journal of environmental quality

authors： Little JL,Nolan SC,Casson JP,Olson BM

更新日期：2007-07-17 00:00:00

abstract：:Long-term water quality records for assessing natural variability, impact of management, and that guide regulatory processes to safeguard water resources are rare for California oak woodland rangelands. This study presents a 20-yr record (1981-2000) of nitrate-nitrogen (NO(3)-N) and suspended sediment export from a ty...

journal_title：Journal of environmental quality

authors： Lewis DJ,Singer MJ,Dahlgren RA,Tate KW

更新日期：2006-10-27 00:00:00

abstract：:Nitrogen (N) application to crops generally results in increased nitrous oxide (NO) emissions. Commercially available, enhanced-efficiency N fertilizers were evaluated for their potential to reduce NO emissions from a clay loam soil compared with conventionally used granular urea and urea-ammonium nitrate (UAN) fertil...

journal_title：Journal of environmental quality

authors： Halvorson AD,Del Grosso SJ,Jantalia CP

更新日期：2011-11-01 00:00:00

abstract：:The accumulation of polycyclic aromatic hydrocarbons (PAH) in soil, plants, and water may impart negative effects on ecosystem and human health. We quantified the concentration and distribution of 41 PAH (n = 32), organic C, total N, and S (n = 140) and investigated PAH sources using a chronosequence of floodplain soi...

journal_title：Journal of environmental quality

authors： Sartori F,Wade TL,Sericano JL,Mohanty BP,Smith KA

更新日期：2010-02-19 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：: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：:Environmental monitoring is essential for assessing the impact of human activities on the environment. Monitoring data are used to ascertain that environmental standards are met, to inform policy making, to determine trends, and to provide parameterization data for prediction models. The design of monitoring programs ...

journal_title：Journal of environmental quality

authors： Boye K,Lindström B,Boström G,Kreuger J

更新日期：2019-07-01 00:00:00

abstract：:Agricultural P losses are a global economic and water quality concern. Much of the current understanding of P dynamics in agricultural systems has been obtained from rainfall-driven runoff, and less is known about cold-season processes. An improved understanding of the magnitude, form, and transport flow paths of P lo...

journal_title：Journal of environmental quality

authors： Plach J,Pluer W,Macrae M,Kompanizare M,McKague K,Carlow R,Brunke R

更新日期：2019-07-01 00:00:00

abstract：:Water flow and P dynamics in a low-relief landscape manipulated by extensive canal and ditch drainage systems were modeled utilizing an ontology-based simulation model. In the model, soil water flux and processes between three soil inorganic P pools (labile, active, and stable) and organic P are represented as databas...

journal_title：Journal of environmental quality

authors： Kwon HY,Grunwald S,Beck HW,Jung Y,Daroub SH,Lang TA,Morgan KT

更新日期：2010-09-01 00:00:00

abstract：:Metal-thiol complexes can enhance metal uptake by plant roots and microorganisms, therefore it is important to determine whether thiols effectively solubilize these metals from the soil matrix. Extractions were conducted by combining 1 g contaminated soil and 10 mL of 10 mmol L(-1) thiol solution and shaking for 1 h. ...

journal_title：Journal of environmental quality

authors： Vadas TM,Ahner BA

更新日期：2009-10-29 00:00:00

abstract：:Erythromycin has been widely used in food-producing animals and in humans, and is frequently detected as an organic pollutant in U.S. streams. In batch experiments with homoionic clays, the Freundlich isotherms were determined at 10 and 25 degrees C. The adsorption of erythromycin A was strongly influenced by clay typ...

journal_title：Journal of environmental quality

authors： Kim YH,Heinze TM,Kim SJ,Cerniglia CE

更新日期：2004-01-01 00:00:00

abstract：:We investigated the seasonal patterns of denitrification rates and potentials in soil profiles along the topohydrosequence formed at the upland-wetland interface in three riparian wetlands with different vegetation cover (i.e., forest, understory vegetation, and grass). Denitrification was measured using the acetylene...

journal_title：Journal of environmental quality

authors： Clément JC,Pinay G,Marmonier P

更新日期：2002-05-01 00:00:00

abstract：:Few effective strategies exist for remediating and restoring metal-contaminated soils. We have evaluated the potential of two environmentally compatible, nondestructive, biological soil-washing agents for remediating aged, lead-contaminated soils. Two contaminated soils were washed with 10 mM rhamnolipid biosurfactant...

journal_title：Journal of environmental quality

authors： Neilson JW,Artiola JF,Maier RM

更新日期：2003-05-01 00:00:00

abstract：:Understanding temporal and spatial distributions of naturally occurring total organic carbon (TOC) in sediments is critical because TOC is an important feature of surface water quality. This study investigated temporal and spatial distributions of sediment TOC and its relationships to sediment contaminants in the Ceda...

journal_title：Journal of environmental quality

authors： Ouyang Y,Zhang JE,Ou LT

更新日期：2006-01-03 00:00:00

abstract：:Mobility of dissolved organic matter (DOM) strongly affects the export of nitrogen (N) and phosphorus (P) from soils to surface waters. To study the sorption and mobility of dissolved organic C and P (DOC, DOP) in soil, the pH-dependent sorption of DOM to samples from Ap, EB, and Bt horizons from a Danish agricultural...

journal_title：Journal of environmental quality

authors： Gjettermann B,Styczen M,Hansen S,Borggaard OK,Hansen HC

更新日期：2007-04-05 00:00:00

abstract：:A vegetated filter strip (VFS) is a measure commonly implemented in agricultural landscapes for the purpose of improving water quality. However, much of the evidence to support their effectiveness comes from warm regions dominated by rainfall driven runoff. This study assessed the performance of VFS plots and compared...

journal_title：Journal of environmental quality

authors： Vanrobaeys JA,Owens PN,Lobb DA,Kieta KA,Campbell JM

更新日期：2019-07-01 00:00:00

abstract：:Phosphorous (P) and nitrogen (N) in runoff from agricultural fields are key components of nonpoint-source pollution and can accelerate eutrophication of surface waters. A laboratory study was designed to evaluate effects of near-surface hydraulic gradients on P and N losses in surface runoff from soil pans at 5% slope...

journal_title：Journal of environmental quality

authors： Zheng FL,Huang CH,Norton LD

更新日期：2004-11-01 00:00:00

abstract：:Coastal aquatic ecosystems are increasingly affected by diffuse source nutrient water pollution from agricultural activities in coastal catchments, even though these ecosystems are important from a social, environmental and economic perspective. To warrant sustainable economic development of coastal regions, we need t...

journal_title：Journal of environmental quality

authors： Roebeling PC,Rocha J,Nunes JP,Fidélis T,Alves H,Fonseca S

更新日期：2014-01-01 00:00:00

abstract：:Soils in the Fuyang valley (Zhejiang province, southeast China) have been contaminated by heavy metals. Since rice (Oryza sativa L.) is the dominant crop in the valley and because of its tendency to accumulate Cd in its grains, assessment of the human health risk resulting from consumption of locally produced rice is ...

journal_title：Journal of environmental quality

authors： Brus DJ,Li Z,Song J,Koopmans GF,Temminghoff EJ,Yin X,Yao C,Zhang H,Luo Y,Japenga J

更新日期：2009-04-27 00:00:00

abstract：:Scaling in situ soil water content time series data to a large spatial domain is a key element of watershed environmental monitoring and modeling. The primary method of estimating and monitoring large-scale soil water content distributions is via in situ networks. It is critical to establish the stability of in situ n...

journal_title：Journal of environmental quality

authors： Cosh MH,Starks PJ,Guzman JA,Moriasi DN

更新日期：2014-07-01 00:00:00

abstract：:Sulfonylurea herbicides are applied at relatively low rates (3 to 40 g ha(-1)) to control weeds in a variety of crops across the Canadian prairies. Because of their high phytotoxicity and the likelihood of their transport in surface runoff, there is concern about their possible impact to aquatic ecosystems. Little is ...

journal_title：Journal of environmental quality

authors： Cessna AJ,Donald DB,Bailey J,Waiser M,Headley JV

更新日期：2006-10-27 00:00:00

abstract：:Soil organic phosphorus (SOP) can greatly contribute to plant-available P and P nutrition. The study was conducted to determine the effects of organic amendments on organic P fractions and microbiological activities in paddy soils. Samples were collected at the Changshu Agro-ecological Experiment Station in Tahu Lake ...

journal_title：Journal of environmental quality

authors： Yang C,Yang L,Jianhua L

更新日期：2006-05-31 00:00:00

abstract：:Operator-controlled and computer-controlled scanning electron microscopy (CCSEM) are used extensively to characterize particulate matter in environmental media. Analysis in a scanning electron microscope (SEM) coupled with chemical extraction is a potentially powerful tool that is capable of determining how various sa...

journal_title：Journal of environmental quality

authors： Hunt A,Johnson DL

更新日期：2011-05-01 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：:Research has shown that alum [Al(2)(SO(4))(3).14H(2)O] applications to poultry litter can greatly reduce phosphorus (P) runoff, as well as decrease ammonia (NH(3)) volatilization. However, the long-term effects of fertilizing with alum-treated litter are unknown. The objectives of this study were to evaluate the long-...

journal_title：Journal of environmental quality

authors： Moore PA Jr,Edwards DR

更新日期：2005-11-07 00:00:00

abstract：:Determining the survival of zoonotic pathogens in livestock manure and runoff is critical for understanding the environmental and public health risks associated with these wastes. The occurrence and persistence of the bacterial pathogens Escherichia coli O157:H7 and Campylobacter spp. in a passive beef cattle feedlot ...

journal_title：Journal of environmental quality

authors： Berry ED,Woodbury BL,Nienaber JA,Eigenberg RA,Thurston JA,Wells JE

更新日期：2007-10-24 00:00:00

abstract：:The management of artificially drained organic soils is a very important issue, since the accelerated mineralization and sometimes peat fires alter physical and chemical properties of soils and the availability of plant nutrients. This study was performed to determine relatively short- and long-term effects of peat fi...

journal_title：Journal of environmental quality

authors： Dikici H,Yilmaz CH

更新日期：2006-04-03 00:00:00

abstract：:A lysimeter trench was established at the Gardermoen delta (50 km north of Oslo, Norway) to study the flow of water and transport and degradation of aromatic jet fuel components (toluene and o-xylene) in the undisturbed unsaturated zone. Site investigations with ground-penetrating radar revealed the presence of dippin...

journal_title：Journal of environmental quality

authors： Søvik AK,Alfnes E,Breedveld GD,French HK,Pedersen TS,Aagaard P

更新日期：2002-11-01 00:00:00