Denitrification at a long-term forested land treatment system in the Piedmont of Georgia.

abstract：:Accurately capturing dynamic soil response to disturbance effects in agroecosystem models remains elusive, thereby limiting projections of climate change mitigation potential. Perennial grasses cultivated in zero-tillage management systems hold promise as sustainable agroecosystems. High-yielding tropical C grasses of...

journal_title：Journal of environmental quality

authors： Crow SE,Sierra CA

更新日期：2018-07-01 00:00:00

abstract：:Phosphate treatments can reduce metal dissolution and transport from contaminated soils. However, diammonium phosphate (DAP) has not been extensively tested as a chemical immobilization treatment. This study was conducted to evaluate DAP as a chemical immobilization treatment and to investigate potential solids contro...

journal_title：Journal of environmental quality

authors： McGowen SL,Basta NT,Brown GO

更新日期：2001-03-01 00:00:00

abstract：:Wildfire has been shown to increase the short-term (1-3 yr) mobilization of mineral N and P in forest ecosystems of the Sierra Nevada Mountains and Lake Tahoe Basin. The ensuing effects on tributary and lake water quality are uncertain. The purpose of this investigation was to assess the impacts on runoff water qualit...

journal_title：Journal of environmental quality

authors： Miller WW,Johnson DW,Gergans N,Carroll-Moore EM,Walker RF,Cody TL,Wone B

更新日期：2013-07-01 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：:Natural fluctuations in light intensity may significantly affect the amount of CO assimilated by plants and ecosystems. Little is known, however, about the interactive effect of dynamic light conditions and atmospheric CO concentrations. The hypothesis that elevated CO concentration (EC; 700 μmol CO mol) increases pho...

journal_title：Journal of environmental quality

authors： Holišová P,Zitová M,Klem K,Urban O

更新日期：2012-11-01 00:00:00

abstract：:Knowledge of pesticide distribution and persistence in nursery recycling pond water and sediment is critical for preventing phytotoxicity of pesticides during water reuse and to assess their impacts to the environment. In this study, sorption and degradation of four commonly used pesticides (diazinon, chlorpyrifos, ch...

journal_title：Journal of environmental quality

authors： Lu J,Wu L,Newman J,Faber B,Merhaut DJ,Gan J

更新日期：2006-08-09 00:00:00

abstract：:In the relatively pristine ecosystem in Kejimkujik Park, Nova Scotia, methylmercury (MeHg) concentrations in loons, Gavia immer, are among the highest recorded anywhere in the world. This study investigated the influence of bedrock lithology on MeHg concentrations in wetlands. Twenty-five different wetland field sites...

journal_title：Journal of environmental quality

authors： Siciliano SD,Sangster A,Daughney CJ,Loseto L,Germida JJ,Rencz AN,O'Driscoll NJ,Lean DR

更新日期：2003-11-01 00:00:00

abstract：:Cadmium (Cd) is a nonessential element that occurs at above-background concentrations in many New Zealand (NZ) soils. Most of this Cd is due to the historical application of single superphosphate that was made from Nauru phosphate rock containing between 400 and 600 mg Cd kg P. Pasture Cd uptake exacerbates the entry ...

journal_title：Journal of environmental quality

authors： Reiser R,Simmler M,Portmann D,Clucas L,Schulin R,Robinson B

更新日期：2014-05-01 00:00:00

abstract：:Corn stover harvesting is a common practice in the western U.S. Corn Belt. This 5-yr study used isotopic source tracking to quantify the influence of two tillage systems, two corn ( L.) surface residue removal rates, and two yield zones on soil organic C (SOC) gains and losses at three soil depths. Soil samples collec...

journal_title：Journal of environmental quality

authors： Clay DE,Reicks G,Carlson CG,Moriles-Miller J,Stone JJ,Clay SA

更新日期：2015-05-01 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：:Surface application of manure in reduced tillage systems generates nuisance odors, but their management is hindered by a lack of standardized field quantification methods. An investigation was undertaken to evaluate odor emissions associated with various technologies that incorporate manure with minimal soil disturban...

journal_title：Journal of environmental quality

authors： Brandt RC,Elliott HA,Adviento-Borbe MA,Wheeler EF,Kleinman PJ,Beegle DB

更新日期：2011-03-01 00:00:00

abstract：:Fish are commonly used for monitoring the quality of waters receiving pulp mill effluents (PMEs). Isotopic assays of fish tissues have the potential to provide empirical evidence to link an effluent source to exposure. We show in a 45-d factorial laboratory experiment that different exposure pathways lead to isotopic ...

journal_title：Journal of environmental quality

authors： Dubé MG,Benoy GA,Wassenaar LI

更新日期：2006-09-13 00:00:00

abstract：:Maryland will impose restrictions on poultry litter application to soils with excessive P by the year 2005. Alternative uses for poultry litter are being considered, including burning as a fuel to generate electricity. The resulting ash contains high levels of total P, but the availability for crop uptake has not been...

journal_title：Journal of environmental quality

authors： Codling EE,Chaney RL,Sherwell J

更新日期：2002-05-01 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：: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：: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：:Efficient use of manure nutrients by crops is necessary to minimize losses to the environment. This field study examined the possibility of replacing side-banded mineral P with precision-placed high-P sludge (6.2-11.0% dry matter) obtained after settling dairy manure slurry. The sludge was injected at about 30 kg P ha...

journal_title：Journal of environmental quality

authors： Bittman S,Liu A,Hunt DE,Forge TA,Kowalenko CG,Chantigny MH,Buckley K

更新日期：2012-03-01 00:00:00

abstract：:Imidacloprid is a systemic insecticide effective in controlling the exotic pest (hemlock woolly adelgid) in eastern hemlock () trees. Concerns over imidacloprid impacts on nontarget species have limited its application in southern Appalachian ecosystems. We quantified the movement and adsorption of imidacloprid in fo...

journal_title：Journal of environmental quality

authors： Knoepp JD,Vose JM,Michael JL,Reynolds BC

更新日期：2012-03-01 00:00:00

abstract：:Successful remediation of oil-contaminated agricultural land may include the goal of returning the land to prespill levels of agricultural productivity. This productivity may be measured by crop yield, quality, and safety, all of which are influenced by soil characteristics. This research was conducted to determine if...

journal_title：Journal of environmental quality

authors： O'Brien PL,DeSutter TM,Casey FXM,Wick AF,Khan E

更新日期：2017-07-01 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：: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：:Terrestrial ecosystems, both natural ecosystems and agroecosystems, generate greenhouse gases (GHGs). The chamber method is the most common method to quantify GHG fluxes from soil-plant systems and to better understand factors affecting their generation and mitigation. The objective of this study was to review and syn...

journal_title：Journal of environmental quality

authors： Clough TJ,Rochette P,Thomas SM,Pihlatie M,Christiansen JR,Thorman RE

更新日期：2020-09-01 00:00:00

abstract：:Use of organic by-products as soil amendments in agricultural production exemplifies a strategy for converting wastes to resources. The overall objective of this research was to evaluate the short- and intermediate-term effects of repeatedly amending sandy soil with paper mill residuals (PMR) and composted PMR in a ve...

journal_title：Journal of environmental quality

authors： Foley BJ,Cooperband LR

更新日期：2002-11-01 00:00:00

abstract：:The water quality response to implementation of conservation measures across watersheds has been slower and smaller than expected. This has led many to question the efficacy of these measures and to call for stricter land and nutrient management strategies. In many cases, this limited response has been due to the lega...

journal_title：Journal of environmental quality

authors： Sharpley A,Jarvie HP,Buda A,May L,Spears B,Kleinman P

更新日期：2013-09-01 00:00:00

abstract：:Recent strategies to reduce elevated nitrate concentrations employ metallic Fe0 as a reductant. Secondary products of Fe0 corrosion include magnetite (Fe3O4), green rust [Fe6(OH)12SO4], and wüstite [FeO(s)]. To our knowledge, no studies have been reported on the reactivity of NO3- with FeO(s). This project was initiat...

journal_title：Journal of environmental quality

authors： Rakshit S,Matocha CJ,Haszler GR

更新日期：2005-07-05 00:00:00

abstract：:Limited information is available on streams in the Adirondack region of New York, although streams are more prone to acidification than the more studied Adirondack lakes. A stream assessment was therefore undertaken in the Oswegatchie and Black River drainages; an area of 4585 km(2) in the western part of the Adironda...

journal_title：Journal of environmental quality

authors： Lawrence GB,Roy KM,Baldigo BP,Simonin HA,Capone SB,Sutherland JW,Nierzwicki-Bauer SA,Boylen CW

更新日期：2008-10-23 00:00:00

abstract：:The loss of phosphorus (P) from land to water is detrimental to surface water quality in many parts of New Zealand and Australia. Farming, especially pasture-based dairying, can be a source of P loss, but preventing it requires a range of fully costed strategies because little or no subsidies are available and the eff...

journal_title：Journal of environmental quality

authors： McDowell RW,Nash D

更新日期：2012-05-01 00:00:00

abstract：:Heavy manure-derived contamination of soils can make animal congregating areas nonpoint sources for environmental pollution. In situ soil stabilization is a cost-effective management strategy with a focus on lowering contaminant availability and limiting release to the environment. Soil stabilizing amendments can help...

journal_title：Journal of environmental quality

authors： Netthisinghe AMP,Cook KL,Gilfillen RA,Woosley PB,Kingery T,Sistani KR

更新日期：2018-09-01 00:00:00

abstract：:Although the reduction of nutrient loading between uplands and streams is sometimes considered evidence of the effect of wetlands acting as buffer zones, the influence of valley bottom wetlands (VBWs) on NO(3)(-) loading has seldom been assessed at the catchment scale. The objective of this study was to quantify the i...

journal_title：Journal of environmental quality

authors： Montreuil O,Merot P

更新日期：2006-10-27 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