Base flow nutrient discharges from lower delmarva peninsula watersheds of virginia, USA.

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：:Gaseous emissions from animal manure storage facilities can contribute to global greenhouse gas inventories. Biogas fluxes were measured for one year from a 2-ha anaerobic lagoon that received waste from a 10500-head swine (Sus scrofa) finishing operation in southwestern Kansas. During 2001, ebullition of biogas was m...

journal_title：Journal of environmental quality

authors： DeSutter TM,Ham JM

更新日期：2005-01-01 00:00:00

abstract：:Soil concentrations and degradation rates of methyl isothio-cyanate (MITC), chloropicrin (CP), 1,3-dichloropropene (1,3-D), and dimethyl disulfide (DMDS) were determined under fumigant application scenarios representative of commercial raised bed, plastic mulched vegetable production systems. Five days after applicati...

journal_title：Journal of environmental quality

authors： Chellemi DO,Ajwa HA,Sullivan DA,Alessandro R,Gilreath JP,Yates SR

更新日期：2011-07-01 00:00:00

abstract：:Farmers in eastern Colorado have commented that atrazine does not provide the length of weed control that they expected in fields that have received multiple applications of the herbicide. Multiple laboratory studies suggest that atrazine dissipates more rapidly in soils with a history of atrazine use compared with so...

journal_title：Journal of environmental quality

authors： Shaner DL,Henry WB

更新日期：2007-01-09 00:00:00

abstract：:The Abbotsford-Sumas Aquifer is a shallow, predominantly unconfined aquifer that spans regions in southwestern British Columbia, Canada and northwestern Washington, USA. The aquifer is prone to nitrate contamination because of extensive regional agricultural practices. A 22-month ground water nitrate assessment was pe...

journal_title：Journal of environmental quality

authors： Mitchell RJ,Babcock RS,Gelinas S,Nanus L,Stasney DE

更新日期：2003-05-01 00:00:00

abstract：:High levels of fecal bacteria are a concern for recreational waters; however, the source of contamination is often unknown. This study investigated whether direct sequencing of a bacterial gene could be utilized for detecting genetic differences between bacterial strains for microbial source tracking. A 525-nucleotide...

journal_title：Journal of environmental quality

authors： Ram JL,Ritchie RP,Fang J,Gonzales FS,Selegean JP

更新日期：2004-05-01 00:00:00

abstract：:There is growing interest in the role that urban forests can play as urban microclimate modifiers. Tree shade and evapotranspiration affect energy fluxes and mitigate microclimate conditions, with beneficial effects on human health and outdoor comfort. The aim of this study was to investigate surface temperature () va...

journal_title：Journal of environmental quality

authors： Napoli M,Massetti L,Brandani G,Petralli M,Orlandini S

更新日期：2016-01-01 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：: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：:Gypsum has a long history as a soil amendment. Information on how flue gas desulfurization (FGD) gypsum affects soil, water, and plant properties across a range of climates and soils is lacking. We conducted a meta-analysis using data from 10 field sites in the United States (Alabama, Arkansas, Indiana, New Mexico, No...

journal_title：Journal of environmental quality

authors： Kost D,Ladwig KJ,Chen L,DeSutter TM,Espinoza L,Norton LD,Smeal D,Torbert HA,Watts DB,Wolkowski RP,Dick WA

更新日期：2018-09-01 00:00:00

abstract：:Phosphorus losses from arable soils contribute to eutrophication of freshwater systems. In addition to losses through surface runoff, leaching has lately gained increased attention as an important P transport pathway. Increased P levels in arable soils have highlighted the necessity of establishing a relationship betw...

journal_title：Journal of environmental quality

authors： Djodjic F,Börling K,Bergström L

更新日期：2004-03-01 00:00:00

abstract：:In northern Florida, year-round forage systems are used in dairy effluent sprayfields to reduce nitrate leaching. Our purpose was to quantify forage N removal and monitor nitrate N (NO3(-)-N) concentration below the rooting zone for two perennial, sod-based, triple-cropping systems over four 12-mo cycles (1996-2000). ...

journal_title：Journal of environmental quality

authors： Woodard KR,French EC,Sweat LA,Graetz DA,Sollenberger LE,Macoon B,Portier KM,Rymph SJ,Wade BL,Prine GM,Van Horn HH

更新日期：2003-05-01 00:00:00

abstract：:To control ammonia (NH(3)) volatilization from the dairy cattle (Bos taurus) manure composting process, a compost pile was covered with mature compost and the gas emissions evaluated using the dynamic chamber system. The peak of NH(3) volatilization observed immediately after piling up of the compost was reduced from ...

journal_title：Journal of environmental quality

authors： Maeda K,Morioka R,Osada T

更新日期：2009-02-06 00:00:00

abstract：:Chemical immobilization is a relatively inexpensive in situ remediation method that reduces soil contaminant solubility, but the ability of this remediation treatment to reduce heavy metal bioavailability and ecotoxicity to soil invertebrates has not been evaluated. Our objectives were to (i) assess the ability of che...

journal_title：Journal of environmental quality

authors： Conder JM,Lanno RP,Basta NT

更新日期：2001-07-01 00:00:00

abstract：:Lake Allatoona is a large reservoir north of Atlanta, GA, that drains an area of about 2870 km2 scheduled for a phosphorus (P) total maximum daily load (TMDL). The Soil and Water Assessment Tool (SWAT) model has been widely used for watershed-scale modeling of P, but there is little guidance on how to estimate P-relat...

journal_title：Journal of environmental quality

authors： Radcliffe DE,Lin Z,Risse LM,Romeis JJ,Jackson CR

更新日期：2009-01-13 00:00:00

abstract：:Complex variation in gas emissions from animal facilities has been shown in recent research reports. Uncertainties in these emission estimates are driving research activities concerning different animal species across the globe. Greenhouse gas (NO and CO) and NH concentrations were measured in a modern, tunnel-ventila...

journal_title：Journal of environmental quality

authors： Miles DM,Moore PA,Burns RT,Brooks JP

更新日期：2014-07-01 00:00:00

abstract：:The use of alternative N sources relative to conventional ones could mitigate soil-surface NO emissions. Our objective was to evaluate the effect of anhydrous ammonia (AA), urea, and polymer-coated urea (ESN) on NO emissions for continuous corn ( L.) production. Corn received 110 kg N ha in 2009 and 180 kg N ha in 201...

journal_title：Journal of environmental quality

authors： Fernández FG,Terry RE,Coronel EG

更新日期：2015-03-01 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：:Long-term application of phosphorus (P) with animal manure in amounts exceeding removal with crops leads to buildup of P in soil and to increasing risk of P loss to surface water and eutrophication. In most manures, the majority of P is held within inorganic forms, but in soil leachates organic P forms often dominate....

journal_title：Journal of environmental quality

authors： Koopmans GF,Chardon WJ,McDowell RW

更新日期：2007-01-09 00:00:00

abstract：:Copper sulfate (CuSO4) is applied periodically to commercial channel catfish (Ictalurus panctatus) ponds as an algicide or parasiticide. Current understanding of the chemistry of copper in soil-water systems suggests that copper may accumulate in pond sediments, although the forms and potential bioavailability of copp...

journal_title：Journal of environmental quality

authors： Han FX,Hargreaves JA,Kingery WL,Huggett DB,Schlenk DK

更新日期：2001-05-01 00:00:00

abstract：:The adsorption of chromate on mineral surfaces has received much attention due to its toxicity in natural systems. Spectroscopic studies have demonstrated that chromate forms inner-sphere complexes on variable-charge surfaces. However, in natural systems chromate has been observed to be fairly mobile, which has been e...

journal_title：Journal of environmental quality

authors： Garman SM,Luxton TP,Eick MJ

更新日期：2004-09-01 00:00:00

abstract：:A field study was initiated in 1992 to investigate the long-term impacts of beef feedlot manure application (composted and uncomposted) on nutrient accumulation and movement in soil, corn silage yield, and nutrient uptake. Two application strategies were compared: providing the annual crop nitrogen (N) requirement (N-...

journal_title：Journal of environmental quality

authors： Ferguson RB,Nienaber JA,Eigenberg RA,Woodbury BL

更新日期：2005-08-09 00:00:00

abstract：:Heavy metal pollution of soil has been recognized as a major factor impeding soil microbial processes. From this perspective, we studied responses of the soil biological activities to metal stress simulated by soil amendment with Zn, Pb, and Cd chlorides. The amounts of heavy metal salts added to five metal-polluted s...

journal_title：Journal of environmental quality

authors： Stuczynski TI,McCarty GW,Siebielec G

更新日期：2003-07-01 00:00:00

abstract：:Control methods are needed to abate NH losses from swine anaerobic lagoons to reduce the contribution of confined swine operations to air pollution. In a 15-mo meso-scale column study, we evaluated the effect of manure pretreatment on water quality, reduction of N losses, and sludge accumulation in swine lagoons using...

journal_title：Journal of environmental quality

authors： Szogi AA,Vanotti MB

更新日期：2014-07-01 00:00:00

abstract：:A shallow-depth ground water area was investigated to identify the dominant processes governing the distribution of hydrocarbon contaminants and hydrogeochemical parameters. The ground water in the study site has been highly contaminated with petroleum hydrocarbons. A preliminary pump-and-treatment remediation technol...

journal_title：Journal of environmental quality

authors： Lee JY,Cheon JY,Lee KK,Lee SY,Lee MH

更新日期：2001-09-01 00:00:00

abstract：:Creative solutions to manage stormwater include ecologically based designs, such as biofilter structures. A laboratory experiment was established to study the ability of biofilters to remove nutrients, metals, total suspended solids (TSS) and total organic carbon originating from roadside stormwater as melted snow. Sp...

journal_title：Journal of environmental quality

authors： Kuoppamäki K,Lima SP,Scopetani C,Setälä H

更新日期：2021-01-22 00:00:00

abstract：:This study was undertaken to determine the fate of As, Mo, and V (trace elements, TEs) in the sediments of a constructed wetland in use for the remediation of potentially toxic trace element-contaminated agricultural drainwater. After three years of wetland operation, sediment cores were collected to determine changes...

journal_title：Journal of environmental quality

authors： Fox PM,Doner HE

更新日期：2003-11-01 00:00:00

abstract：:Due to its resistance to many wastewater treatment processes, the antiepileptic drug carbamazepine (CBZ) is routinely found in wastewater effluent. Wastewater irrigation is an alternative to stream discharge of wastewater effluent, which utilizes the soil as a tertiary filter to remove excess nutrients and has the pot...

journal_title：Journal of environmental quality

authors： Walker CW,Watson JE,Williams C

更新日期：2012-07-01 00:00:00

abstract：:The New Zealand Greenhouse Gas Inventory (the NZ Inventory) uses country-specific data to quantify CH emissions from anaerobic ponds treating dairy farm effluent (315 Gg CO equivalent [CO-e] in 2009). In this study, we used literature data to: (i) evaluate the accuracy of the NZ Inventory's parameters used to quantify...

journal_title：Journal of environmental quality

authors： Chung ML,Shilton AN,Guieysse B,Pratt C

更新日期：2013-05-01 00:00:00

abstract：:Condensed tannins can be found in various parts of many plants. Unlike lignin there has been little study of their fate as they enter the soil organic matter pool and their influence on nutrient cycling, especially through their protein-binding properties. We extracted and characterized tannin-rich fractions from humu...

journal_title：Journal of environmental quality

authors： Lorenz K,Preston CM

更新日期：2002-03-01 00:00:00