Use of Molecular Markers to Compare Escherichia coli Transport with Traditional Groundwater Tracers in Epikarst.

abstract：:Experiments to document the long-term effects of clipping management on N requirements, soil organic carbon (SOC), and soil organic nitrogen (SON) are difficult and costly and therefore few. The CENTURY ecosystem model offers an opportunity to study long-term effects of turfgrass clipping management on biomass product...

journal_title：Journal of environmental quality

authors： Qian YL,Bandaranayake W,Parton WJ,Mecham B,Harivandi MA,Mosier AR

更新日期：2003-09-01 00:00:00

abstract：:Broiler litter contains 17β-estradiol, estrone, and testosterone, which can contaminate surface waters when surface applied to grasslands and no-till fields. The objective of this study was to evaluate the effects of litter type (full or cake cleanout), litter treatment (none or sodium bisulfate), and number of flocks...

journal_title：Journal of environmental quality

authors： Cabrera ML,Kissel DE,Hassan S,Rema JA,Cassity-Duffey K

更新日期：2018-01-01 00:00:00

abstract：:Nitrate-nitrogen (NO₃-N) loading to surface water bodies from subsurface drainage is an environmental concern in the midwestern United States. The objective of this study was to investigate the effect of various land covers on NO₃-N loss through subsurface drainage. Land-cover treatments included (i) conventional corn...

journal_title：Journal of environmental quality

authors： Qi Z,Helmers MJ,Christianson RD,Pederson CH

更新日期：2011-09-01 00:00:00

abstract：:Subsurface tile drains in agricultural systems of the midwestern United States are a major contributor of nitrate-N (NO-N) loadings to hypoxic conditions in the Gulf of Mexico. Hydrologic and water quality models, such as the Soil and Water Assessment Tool, are widely used to simulate tile drainage systems. The Hoogho...

journal_title：Journal of environmental quality

authors： Moriasi DN,Gowda PH,Arnold JG,Mulla DJ,Ale S,Steiner JL,Tomer MD

更新日期：2013-11-01 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：:Quantification of soil carbon (C) cycling as influenced by management practices is needed for C sequestration and soil quality improvement. We evaluated the 10-yr effects of tillage, cropping system, and N source on crop residue and soil C fractions at 0- to 20-cm depth in Decatur silt loam (clayey, kaolinitic, thermi...

journal_title：Journal of environmental quality

authors： Sainju UM,Senwo ZN,Nyakatawa EZ,Tazisong IA,Reddy KC

更新日期：2008-05-02 00:00:00

abstract：:The variations in the quality of floodwaters from the upper Leichhardt River catchment (1113 km), Mount Isa, in northwest Queensland, Australia, were examined to better understand the impact of urban, mining, and industrial activity on receiving waters. Water sampling was conducted during the 2006-2007 wet season and ...

journal_title：Journal of environmental quality

authors： Mackay AK,Taylor MP

更新日期：2013-03-01 00:00:00

abstract：:High intensity wildfire due to long-term fire suppression and heavy fuels buildup can render watersheds highly susceptible to wind and water erosion. The 2002 "Gondola" wildfire, located just southeast of Lake Tahoe, NV-CA, was followed 2 wk later by a severe hail and rainfall event that deposited 7.6 to 15.2 mm of pr...

journal_title：Journal of environmental quality

authors： Carroll EM,Miller WW,Johnson DW,Saito L,Qualls RG,Walker RF

更新日期：2007-05-25 00:00:00

abstract：:This study examined the long-term fate of the fungicide triticonazole (TTZ; 5-[(4-chlorophenyl)methylene]-2,2-dimethyl-1-(1H-1,2,4-triazol-1-ylmethyl)cydopentanol) applied at a normal field dose (8.9 g ha(-1)) via seed treatment, which is the normal alternative in practice. The TTZ was applied to wheat (Triticum aesti...

journal_title：Journal of environmental quality

authors： Börjesson E,Stenström J,Johnsson L,Torstensson L

更新日期：2003-07-01 00:00:00

abstract：:Riparian wetlands have been shown to be effective "sinks" for nitrate N (NO3-), minimizing the downstream export of N to streams and coastal water bodies. However, the vast majority of riparian denitrification research has been in agricultural and forested watersheds, with relatively little work on riparian wetland fu...

journal_title：Journal of environmental quality

authors： Harrison MD,Groffman PM,Mayer PM,Kaushal SS,Newcomer TA

更新日期：2011-03-01 00:00:00

abstract：:Two novel solid-state 13C nuclear magnetic resonance (NMR) spectroscopic techniques, PSRE (proton spin relaxation editing) and RESTORE [Restoration of Spectra via T(CH) and T(1rho)H (T One Rho H) Editing], were used to provide detailed chemical characterization of the organic matter from six Australian sewage sludges....

journal_title：Journal of environmental quality

authors： Smernik RJ,Oliver IW,Merrington G

更新日期：2003-07-01 00:00:00

abstract：:Erosion and runoff from pastures may lead to degradation of surface water. A 2-yr grazing study was conducted to quantify the effects of grazing management on sediment, phosphorus (P), and pathogen loading of streams in cool-season grass pastures. Six adjoining 12.1-ha pastures bisected by a stream in central Iowa wer...

journal_title：Journal of environmental quality

authors： Schwarte KA,Russell JR,Kovar JL,Morrical DG,Ensley SM,Yoon KJ,Cornick NA,Cho YI

更新日期：2011-07-01 00:00:00

abstract：:Closed chambers used to measure soil-atmosphere exchange of trace gases including nitrous oxide (N(2)O) and carbon dioxide (CO(2)) generate errors due to suppression of the gas concentration gradient at the soil-atmosphere interface. A method is described here for estimating the magnitude of flux underestimation arisi...

journal_title：Journal of environmental quality

authors： Venterea RT

更新日期：2009-12-30 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：:Passage of agricultural runoff through vegetated drainage ditches has been shown to reduce the amount of pesticides, such as atrazine, exiting out of agricultural watersheds. Previous studies have found that microbial communities in soil from fields treated with atrazine display enhanced rates of atrazine degradation....

journal_title：Journal of environmental quality

authors： Tyler HL,Khalid S,Jackson CR,Moore MT

更新日期：2013-05-01 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：:The frequency and intensities of dust exposures in and near farm fields, which potentially contribute to high intensity human exposure events, are undocumented due to the transient nature of local dust plumes and the difficulties of making accurate concentration measurements. The objective of this study is to measure ...

journal_title：Journal of environmental quality

authors： Hiscox AL,Miller DR,Holmén BA,Yang W,Wang J

更新日期：2008-03-01 00:00:00

abstract：:Eco-environmental quality assessment (EQA) is an intricate and challenging task that must take into account numerous natural, economic, political, and social factors, which are subject to multiple conflicting criteria. In this paper, a methodological reference framework is developed for EQA that combines the fuzzy Del...

journal_title：Journal of environmental quality

authors： Wang X,Cao Y,Zhong X,Gao P

更新日期：2012-09-01 00:00:00

abstract：:Denitrifying bioreactors are dependent on organic matter supply as a substrate for effective NO removal. In this study, the difference in removal efficiency and side effects when using different organic matter sources and dosing strategies was tested in two field experiments. The organic matter sources tested were woo...

journal_title：Journal of environmental quality

authors： Jansen S,Stuurman R,Chardon W,Ball S,Rozemeijer J,Gerritse J

更新日期：2019-03-01 00:00:00

abstract：:Place-based resource management, such as watershed or ecosystem management, is being promoted to replace the media-focused approach for achieving water quality protection. We monitored the agricultural area of a 740-ha watershed to determine the nature and scale of farm material transfers, N and P balances, and farmer...

journal_title：Journal of environmental quality

authors： Nord EA,Lanyon LE

更新日期：2003-03-01 00:00:00

abstract：:Land application of biosolids is an effective means of recycling plant nutrients and is the primary method of biosolids reuse endorsed by the USEPA. One issue concerning biosolids application is the extent of the contribution of biosolids-borne plant nutrients to the overall crop concentration and uptake or removal of...

journal_title：Journal of environmental quality

authors： Barbarick KA,Ippolito JA,McDaniel JP

更新日期：2016-07-01 00:00:00

abstract：:Isotopically exchangeable metals in soil, also termed labile metals, are reversibly bound to soil surface and are a better index of the environmental risk of the metals than are their total concentrations. In this study, labile fractions of potentially toxic elements were surveyed in metal mining-impacted soils of Mex...

journal_title：Journal of environmental quality

authors： Guzman-Rangel G,Martínez-Villegas N,Smolders E

更新日期：2020-03-01 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：:Anthropogenic nitrate (NO3-) within the Mississippi-Atchafalaya River basin and discharge to the Gulf of Mexico has been linked to serious environmental problems. The sources of this NO3- have been estimated by others using mass balance methods; however, there is considerable uncertainty in these estimates. Part of th...

journal_title：Journal of environmental quality

authors： Panno SV,Hackley KC,Kelly WR,Hwang HH

更新日期：2006-02-02 00:00:00

abstract：:Antibiotic resistance analysis (ARA) was used to determine if enterococci of human origin were present in a stream (Spout Run) that passes through a rural nonsewered community (Millwood, VA). Millwood consists of 82 homes, all served by individual septic systems, and Spout Run drains a 5,800-ha karst topography waters...

journal_title：Journal of environmental quality

authors： Graves AK,Hagedorn C,Teetor A,Mahal M,Booth AM,Reneau RB Jr

更新日期：2002-07-01 00:00:00

abstract：:Microbial mineralization of urea and uric acid in poultry litter results in the production of ammonia, which can lead to decreased poultry performance, malodorous emissions, and loss of poultry litter value as a fertilizer. Despite the fact that this is a microbial process, little is known about how the microbial popu...

journal_title：Journal of environmental quality

authors： Cook KL,Rothrock MJ Jr,Warren JG,Sistani KR,Moore PA Jr

更新日期：2008-10-23 00:00:00

abstract：:The impact of litter decomposition on chemical substrate properties and element leaching during early soil formation in afforested post-mine sites and the influence of different tree species are key issues in new ecosystem development. Scots pine ( L.) and common birch ( Roth) are important pioneering species used in ...

journal_title：Journal of environmental quality

authors： Woś B,Pietrzykowski M

更新日期：2015-07-01 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：: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：:An outdoor, solar illuminated growth chamber with modulated UV-B enhancement, is described and its performance characterized. The chamber was clad with Teflon film that transmitted both UV-A and UV-B with little absorption and whose transmission did not change significantly over 1 yr. An array of UV-B emitting fluor...

journal_title：Journal of environmental quality

authors： Ryan KG,Ireland W

更新日期：1997-05-01 00:00:00