Measurement and Modeling of Denitrification in Sand-Bed Streams under Various Land Uses.

abstract：:A field lysimeter study with bare ground and five different ground covers was established to evaluate the effect of forage grasses on the fate and transport of two herbicides in leachate. The herbicides were atrazine (ATR; 2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine) and isoxaflutole [IXF; 5-cyclopropyl-4-(2...

journal_title：Journal of environmental quality

authors： Lin CH,Lerch RN,Garrett HE,Johnson WG,Jordan D,George MF

更新日期：2003-11-01 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：:Influence of soil properties and aging on Cu partitioning and toxicity was assessed on 10 artificial soils constituted using a statistical design considering pH (5.5 and 7.5), organic matter (1-30% [w/w]), and clay content (5-35% [w/w]). Total Cu as well as water-, CaCl2-, and diethylene triamine pentaacetic acid (DTP...

journal_title：Journal of environmental quality

authors： Daoust CM,Bastien C,Deschênes L

更新日期：2006-03-01 00:00:00

abstract：:The area under no-till (NT) in Brazil reached 22 million ha in 2004-2005, of which approximately 45% was located in the southern states. From the 1970s to the mid-1980s, this region was a source of carbon dioxide to the atmosphere due to decrease of soil carbon (C) stocks and high consumption of fuel by intensive till...

journal_title：Journal of environmental quality

authors： Amado TJ,Bayer C,Conceição PC,Spagnollo E,de Campos BH,da Veiga M

更新日期：2006-07-06 00:00:00

abstract：:The influence of zoonotic pathogens in animal manure on human health and well-being as a direct or indirect cause of human enteric illness is examined. Available international data are considered, but the study is focused on the developing situation in western Canada, where it is certain there will be further rapid gr...

journal_title：Journal of environmental quality

authors： Guan TY,Holley RA

更新日期：2003-03-01 00:00:00

abstract：:Golf courses require extensive use of inputs to meet the needs of playability and aesthetics. The impact of these inputs on soil biological health is largely unknown. Two field trials were conducted at a golf course in Georgia to evaluate short-term effects of wetting agents (Cascade Plus and Duplex [C+D], Revolution ...

journal_title：Journal of environmental quality

authors： Diera AA,Raymer PL,Martinez-Espinoza AD,Bauske E,Habteselassie MY

更新日期：2020-07-01 00:00:00

abstract：:There is increasing recognition of the adverse impacts of agricultural practices on microbial water quality leading to increased expectation on farmers to manage environmental impacts on water quality. Therefore, farmers require a tool to help them prioritize mitigations targeted at reducing fecal contamination of sur...

journal_title：Journal of environmental quality

authors： Muirhead R

更新日期：2015-01-01 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：:Potent estrogenic hormones are consistently detected in the environment at low concentration, yet these chemicals are strongly sorbed to soil and are labile. The objective of this research was to improve the understanding of the processes of sorption, mobility, and transformation for estrogens in natural soils, and th...

journal_title：Journal of environmental quality

authors： Casey FX,Simunek J,Lee J,Larsen GL,Hakk H

更新日期：2005-07-05 00:00:00

abstract：:The southwest of Western Australia is affected by dryland salinity that results in the loss of previously productive agricultural land, damage to buildings, roads, and other infrastructure, decline in pockets of remnant vegetation and biodiversity, and reduction in water quality. Accurate information on the location a...

journal_title：Journal of environmental quality

authors： Furby S,Caccetta P,Wallace J

更新日期：2009-12-30 00:00:00

abstract：:An important aspect for the evaluation of fire effects in slash-and-burn agricultural system, as well as in wildfire, is the soil burn severity. The objective of this study is to estimate the maximum temperature reached in real soil burn events using energy dispersive X-ray fluorescence (EDXRF) as an analytical tool, ...

journal_title：Journal of environmental quality

authors： Melquiades FL,Thomaz EL

更新日期：2016-05-01 00:00:00

abstract：:In Britain, frequent rainfall means that there is a high potential for rapid, direct (incidental) losses of phosphorus (P) to occur after fertilizer or manure application. However, despite the known contribution of P to the eutrophication of water bodies in Britain, such incidental transfers have received little exper...

journal_title：Journal of environmental quality

authors： Preedy N,McTiernan K,Matthews R,Heathwaite L,Haygarth P

更新日期：2001-11-01 00:00:00

abstract：:A commonly used method of measuring enteric methane (CH4) emissions from ruminants is the SF6 tracer technique that measures respired and eructated CH4. However, within the animal, a small proportion of CH4 is produced post-ruminally and some of this may escape through the rectum. The comparison of emissions using a c...

journal_title：Journal of environmental quality

authors： McGinn SM,Beauchemin KA,Iwaasa AD,McAllister TA

更新日期：2006-08-09 00:00:00

abstract：:A significant need exists to improve our understanding of the extent of greenhouse gas emissions from the storage of livestock manure to both improve the reliability of inventory assessments and the impact of beneficial management practice adoption. Factors affecting the extent and variability of greenhouse gas emissi...

journal_title：Journal of environmental quality

authors： Le Riche EL,VanderZaag AC,Wood JD,Wagner-Riddle C,Dunfield K,Ngwabie NM,McCabe J,Gordon RJ

更新日期：2016-11-01 00:00:00

abstract：:The potential excessive nutrient and/or microbial loading from mismanaged land application of organic fertilizers is forcing changes in animal waste management. Currently, it is not clear to what extent different rates of poultry litter impact soil microbial communities, which control nutrient availability, organic ma...

journal_title：Journal of environmental quality

authors： Acosta-Martínez V,Harmel RD

更新日期：2006-07-06 00:00:00

abstract：:Swine manure contains considerable amounts of total (P) and soluble phosphorus (PO(4)-P) which may increase the soil P content when applied in excess to crop requirements and, consequently, risk water eutrophication. The feasibility of using magnesium (Mg) from the by-product of electrolysis and foundries (BPEF) for t...

journal_title：Journal of environmental quality

authors： Parent G,Bélanger G,Ziadi N,Deland JP,Laperrière J

更新日期：2007-03-01 00:00:00

abstract：:A procedure involving alkaline extraction and solution 31P nuclear magnetic resonance (NMR) spectroscopy was developed and optimized for the characterization of P in animal manures (broiler, swine, beef cattle). Inclusion of ethylenediaminetetraacetic acid (EDTA) in the alkaline extraction solution recovered between 8...

journal_title：Journal of environmental quality

authors： Turner BL

更新日期：2004-03-01 00:00:00

abstract：:Increased use of neonicotinoid-coated crop seeds introduces greater amounts of insecticides into the environment, where they are vulnerable to transport. To understand the transport of neonicotinoids from agricultural fields, we planted maize seeds coated with thiamethoxam in lysimeter plots in central Pennsylvania, U...

journal_title：Journal of environmental quality

authors： Frame ST,Pearsons KA,Elkin KR,Saporito LS,Preisendanz HE,Karsten HD,Tooker JF

更新日期：2020-12-23 00:00:00

abstract：:Substantial amounts of self-boiling, Al-rich, hyperalkaline, and saline high-level waste fluids (HLWF) were deposited to the vadose zone at the Hanford Site, in Washington State. The objective of this study was to investigate the effects of similar fluids on the extent of dissolution and precipitation in the sediments...

journal_title：Journal of environmental quality

authors： Qafoku NP,Ainsworth CC,Szecsody JE,Qafoku OS

更新日期：2003-11-01 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：:In the western United States, sugar beet processing for sugar recovery generates a lime-based waste product (∼250,000 Mg yr) that has little liming value in the region's calcareous soils. This area has recently experienced an increase in dairy production, with dairies using copper (Cu)-based hoof baths to prevent hoof...

journal_title：Journal of environmental quality

authors： Ippolito JA,Strawn DG,Scheckel KG

更新日期：2013-05-01 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：:Malodors from pig manure storage pits are a problem lacking a cost-efficient solution particularly for small pig (Sus domestica) farms. The objective of this study was to reduce emissions of noxious odorants by changing the conditions in the pig manure to favor an altered microbial community. Sugars (maltose, lactose,...

journal_title：Journal of environmental quality

authors： Nykänen AM,Hämäläinen N,Kostia S,Mikola J,Romantschuk M

更新日期：2010-02-19 00:00:00

abstract：:A lignocellulosic substrate (LS) obtained from our local agroindustry was used as a low-cost and effective adsorbent for the removal of pesticides from wastewaters. The studied pesticides were terbumeton (N-(1,1-dimethyl)-Nethyl-6-methoxy-1,3,5-triazine-2,4-diamine), desethyl terbumeton (N-(1,1-dimethylethyl)-6-methox...

journal_title：Journal of environmental quality

authors： Boudesocque S,Guillon E,Aplincourt M,Martel F,Noël S

更新日期：2008-03-01 00:00:00

abstract：:Nutrient management plans (NMPs) for application of wastewater from concentrated animal feeding operations are designed to meet crop water and nutrient requirements, but implicitly assume that pathogenic microorganisms in the wastewater will be retained and die-off in the root zone. A NMP was implemented on a field pl...

journal_title：Journal of environmental quality

authors： Bradford SA,Segal E

更新日期：2009-06-23 00:00:00

abstract：:Sand-sized particles (>63 microm) in whole storm water samples collected from urban runoff have the potential to produce data with substantial bias and/or poor precision both during sample splitting and laboratory analysis. New techniques were evaluated in an effort to overcome some of the limitations associated with ...

journal_title：Journal of environmental quality

authors： Selbig WR,Bannerman R,Bowman G

更新日期：2007-01-09 00:00:00

abstract：:Since its discovery in 1669, phosphorus (P) in the form of fertilizer has become an essential input for many agroecosystems. By introducing a concentrated P source, fertilizers increase short-term P export potential soon after their application and longer-term export potential by increasing soil fertility (legacy P). ...

journal_title：Journal of environmental quality

authors： Nash DM,McDowell RW,Condron LM,McLaughlin MJ

更新日期：2019-09-01 00:00:00

abstract：:Agricultural nutrient management is an issue due to P loss from fields and water quality degradation. This is especially true in watersheds where a history of P application in excess of crop needs has resulted in elevated soil P (legacy P). As practices and policy are implemented in such watersheds to reduce P loss, i...

journal_title：Journal of environmental quality

authors： Vadas PA,Fiorellino NM,Coale FJ,Kratochvil R,Mulkey AS,McGrath JM

更新日期：2018-05-01 00:00:00

abstract：:High levels of fecal indicator bacteria (FIB) are the leading cause of surface water quality impairments in the United States. Watershed-scale models are commonly used to identify relative contributions of watershed sources and to evaluate the effectiveness of remediation strategies. However, most existing models simp...

journal_title：Journal of environmental quality

authors： Liao H,Krometis LA,Hession WC,House LL,Kline K,Badgley BD

更新日期：2014-11-01 00:00:00

abstract：:Enzyme catalyzed reactions are generally considered the rate-limiting step in organic matter degradation and may be significantly influenced by the structure and composition of plant communities. Changes in these rates have the potential to effect long-term peat accumulation and influence the topography of a wetland e...

journal_title：Journal of environmental quality

authors： Penton CR,Newman S

更新日期：2008-05-02 00:00:00