Stimulated rhizodegradation of atrazine by selected plant species.

abstract：:Quantitative polymerase chain reaction (qPCR) was used by the USEPA to establish new recreational water quality criteria in 2012 using the indicator bacteria enterococci. The application of this method has been limited, but resource managers are interested in more timely monitoring results. In this study, we evaluated...

journal_title：Journal of environmental quality

authors： Byappanahalli MN,Nevers MB,Shively DA,Spoljaric A,Otto C

更新日期：2018-09-01 00:00:00

abstract：:Protection of ground water for present and future use requires monitoring and understanding of the mechanisms controlling long-term quality of ground water. In this study, spatial and temporal trends in concentrations of nitrate and pesticides in ground water in the eastern San Joaquin Valley, California, were evaluat...

journal_title：Journal of environmental quality

authors： Burow KR,Shelton JL,Dubrovsky NM

更新日期：2008-09-01 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：:Practical guidelines addressing the timing of manure and nutrient application must consider the concerns of the farm operators while ensuring the protection of the environment. An approach was developed and analyzed through case studies to determine the first recommended day in the spring, and the last in the fall, fo...

journal_title：Journal of environmental quality

authors： Fallow DJ,Brown DM,Lauzon JD,Parkin GW

更新日期：2007-01-09 00:00:00

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：:Water quality concerns and revised regulations are changing how confined animal feeding operations manage manure. Devising acceptable and feasible changes in manure practices requires a full understanding of the forces shaping current manure management decisions. Previous theoretical models have shown that a wide rang...

journal_title：Journal of environmental quality

authors： Lory JA,Massey RE,Zulovich JM,Hoehne JA,Schmidt AM,Carlson MS,Fulhage CD

更新日期：2004-05-01 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：:Two separate laboratory experiment series, surface runoff and steady-state seepage, were performed to determine if dust suppressant products can be applied to soils with an expected minimal to no negative impact on water quality. The experiments were designed to mimic arid field conditions and used two soils (clayey a...

journal_title：Journal of environmental quality

authors： Beighley RE,He Y,Valdes JR

更新日期：2009-02-06 00:00:00

abstract：:The enrichment of P in surface waters has been linked to P runoff from agricultural fields amended with fertilizers. Novel slow-release mineral fertilizers, such as struvite and P-exchanged layered double hydroxides (LDHs), have received increasing attention for P recycling from waste streams, and these fertilizers ma...

journal_title：Journal of environmental quality

authors： Everaert M,da Silva RC,Degryse F,McLaughlin MJ,Smolders E

更新日期：2018-03-01 00:00:00

abstract：:Previous studies have indicated that dissolved-phase metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(methoxy-1-methylethyl) acetamide] transported in surface runoff is retained by vegetative filter strips to a greater degree than either metolachlor oxanilic acid 12-[(2-ethyl-6-methylphenyl) (2-methoxy-1-methylethy...

journal_title：Journal of environmental quality

authors： Krutz LJ,Senseman SA,McInnes KJ,Hoffman DW,Tierney DP

更新日期：2004-05-01 00:00:00

abstract：:Water treatment residuals (WTRs) are a by-product of municipal drinking water treatment plants and can have the capacity to adsorb tremendous amounts of P. Understanding the WTR phosphorus adsorption process is important for discerning the mechanism and tenacity of P retention. We studied P adsorbing mechanism(s) of a...

journal_title：Journal of environmental quality

authors： Ippolito JA,Barbarick KA,Heil DM,Chandler JP,Redente EF

更新日期：2003-09-01 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：:Sediment delivery from hillslopes to rivers is spatially variable and may lead to long-term delays between initial erosion and related sediment yield at the watershed outlet. Consideration of spatial variability is important for developing sound strategies for water quality improvement and soil protection at the water...

journal_title：Journal of environmental quality

authors： Bonumá NB,Rossi CG,Arnold JG,Reichert JM,Minella JP,Allen PM,Volk M

更新日期：2014-01-01 00:00:00

abstract：:The interaction of sulfonamide antimicrobial agents with smectite clay minerals and humic acid (HA)-clay complexes was investigated in batch experiments to assess the influence of adsorbed humic acid on sulfonamide sorption. Soil HA-clay complexes were produced at HA:clay ratios of 1:5, 1:50, and 1:100 (w/w). Vibratio...

journal_title：Journal of environmental quality

authors： Gao J,Pedersen JA

更新日期：2009-12-30 00:00:00

abstract：:Vegetation that develops spontaneously on metal-contaminated soils presents an opportunity to evaluate both metal bioavailability and the risks posed to biota. The behavior of Cd and Zn in the species of a spontaneously developed woodland, colonizing a canal embankment, has been investigated. Nitric-acid-extractable m...

journal_title：Journal of environmental quality

authors： Lepp NW,Madejón P

更新日期：2007-06-27 00:00:00

abstract：:Calcium superphosphate and apple ( Mill.) waste can be used for controlling N loss and improving compost quality during composting, whereas integrated addition of the two additives on composting process remains unexplored. Therefore, this study was conducted to investigate the effects of combined use of calcium superp...

journal_title：Journal of environmental quality

authors： Jiang J,Kang K,Zhang C,Yan G,Lv J,Li Y

更新日期：2019-09-01 00:00:00

abstract：:The nitrates (NO(3)-N) lost through subsurface drainage in the Midwest often exceed concentrations that cause deleterious effects on the receiving streams and lead to hypoxic conditions in the northern Gulf of Mexico. The use of drainage and water quality models along with observed data analysis may provide new insigh...

journal_title：Journal of environmental quality

authors： Ale S,Bowling LC,Youssef MA,Brouder SM

更新日期：2012-01-01 00:00:00

abstract：:Continued inputs of fertilizer and manure in excess of crop requirements have led to a build-up of soil phosphorus (P) levels and increased P runoff from agricultural soils. The objectives of this study were to determine the effects of two tillage practices (no-till and chisel plow) and a range of soil P levels on the...

journal_title：Journal of environmental quality

authors： Daverede IC,Kravchenko AN,Hoeft RG,Nafziger ED,Bullock DG,Warren JJ,Gonzini LC

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：:Macropores formed by roots are crucial channels for preferential flows in forest soils that are largely responsible for water percolation and solute leaching. Using dual-tracer experiments (Brilliant Blue FCF and bromide [Br]), this study investigated the preferential flows of water and solutes in a deciduous forest d...

journal_title：Journal of environmental quality

authors： Luo Z,Niu J,Zhang L,Chen X,Zhang W,Xie B,Du J,Zhu Z,Wu S,Li X

更新日期：2019-01-01 00:00:00

abstract：:Farmed landscapes are engineered for productivity, and research suggests they contribute a disproportionate share of inorganic C to the Mississippi River and Gulf of Mexico. Here we use alkalinity and total organic C (TOC) measurements collected from the Raccoon River of Iowa to (i) evaluate inorganic and organic C co...

journal_title：Journal of environmental quality

authors： Jones CS,Schilling KE

更新日期：2013-01-01 00:00:00

abstract：:Growing nitrogen (N) catch crops can reduce NO(3)-N leaching after cultivating cereals. The objective of this study was to relate NO(3)-N leaching to variation in the uptake of N and the size and distribution of the root systems of different catch crops species. In a 3-yr lysimeter experiment, phacelia (Phacelia tanac...

journal_title：Journal of environmental quality

authors： Herrera JM,Feil B,Stamp P,Liedgens M

更新日期：2010-04-13 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：:Pesticides are responsible for nearly 1900 water quality impairments in the United States. Impacts of pesticide runoff on aquatic ecosystems can be mitigated by implementing management practices such as constructed wetlands, grass buffers, and vegetated ditches. A new practice currently being examined is the use of ri...

journal_title：Journal of environmental quality

authors： Moore MT,Locke MA,Cullum RF

更新日期：2018-11-01 00:00:00

abstract：:Sources and molecular composition of dissolved organic matter (DOM) in coastal rivers have been tightly linked with its reactivity and fate, thus influencing element and nutrient cycling. The DOM in coastal rivers is usually sourced from both terrestrial and marine inputs, with further complication by anthropogenic ac...

journal_title：Journal of environmental quality

authors： He D,He C,Li P,Zhang X,Shi Q,Sun Y

更新日期：2019-05-01 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：:For (134/137)Cs, and many other soil contaminants, research into transfer to plants has focused on particular crops and phytoremediation candidates, producing uptake data for a small proportion of all plant taxa. Despite the significance of differences in uptake between plant taxa, the capacity of soil-to-plant transf...

journal_title：Journal of environmental quality

authors： Willey NJ,Tang S,Watt NR

更新日期：2005-08-09 00:00:00

abstract：:The New York Phosphorus Index (NY-PI) was introduced in 2001 after the release of the state's first Concentrated Animal Feeding Operation (CAFO) Permit that required a nutrient management plan developed in accordance with NRCS standards. The stakeholder-based approach to development of the NY-PI, combined with a requi...

journal_title：Journal of environmental quality

authors： Ketterings QM,Cela S,Collick AS,Crittenden SJ,Czymmek KJ

更新日期：2017-11-01 00:00:00

abstract：:Phosphorus (P) losses from nonpoint sources into surface water resources through surface runoff and tile drainage play a significant role in eutrophication. Accordingly, the number of studies involving the modeling of agricultural P losses, the uncertainties of such models, and the best management practices (BMPs) sup...

journal_title：Journal of environmental quality

authors： Wang Z,Zhang T,Tan CS,Qi Z

更新日期：2020-09-01 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