Radionuclide transport above a near-surface water table: IV. Soil migration and crop uptake of chlorine-36 and technetium-99, 1990 to 1993.

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：:Pig (Sus scrofa domesticus) slurry (PS) is commonly applied as fertilizer to agricultural fields. Knowledge of PS nitrogen content is essential for good management, but PS nitrogen content is highly variable, not only between farms but also within a farm. Laboratory analysis of animal slurries is often expensive and i...

journal_title：Journal of environmental quality

authors： Yagüe MR,Quílez D

更新日期：2012-05-01 00:00:00

abstract：:The pastoral grazing of farmed red deer (Cervus elaphus) is common in New Zealand. However, red deer have a natural instinct to seek out water and wallow in it. Often, in headwater catchments, they will create a wallow in a wet area connected to a waterway. Aesthetically, wallowing areas can be unpleasant and give the...

journal_title：Journal of environmental quality

authors： McDowell RW

更新日期：2007-07-17 00:00:00

abstract：:Perchlorate (ClO4-) contamination of ground water and surface water is a widespread problem, particularly in the western United States. This study examined the effect of biodegradation on perchlorate fate and transport in soils. Solute transport experiments were conducted on two surface soils. Pulses of solution conta...

journal_title：Journal of environmental quality

authors： Tipton DK,Rolston DE,Scow KM

更新日期：2003-01-01 00:00:00

abstract：:To examine whether tree rings can be used to detect or assess local historical 90Sr or 137Cs fallout, such as that resulting from the Hiroshima atomic bomb, radial distribution of 90Sr and 137Cs in trees was examined. We studied a gymnosperm [Japanese cedar, Cryptomeria japonica (L. f.) D. Don] and an angiosperm (Japa...

journal_title：Journal of environmental quality

authors： Kagawa A,Aoki T,Okada N,Katayama Y

更新日期：2002-11-01 00:00:00

abstract：:Urban landscapes contain a mix of land-use types with different patterns of nitrogen (N) cycling and export. We measured nitrate (NO(3)(-)) leaching and soil:atmosphere nitrous oxide (N(2)O) flux in four urban grassland and eight forested long-term study plots in the Baltimore, Maryland metropolitan area. We evaluated...

journal_title：Journal of environmental quality

authors： Groffman PM,Williams CO,Pouyat RV,Band LE,Yesilonis ID

更新日期：2009-07-23 00:00:00

abstract：:Hyperaccumulated Ni can defend plant tissues against herbivores and pathogens. The effectiveness of this defense, however, has not been tested with a viral pathogen. Turnip mosaic virus (TuMV) accumulation was studied in two serpentine species of Streptanthus with different Ni uptake abilities. Plants of a Ni hyperacc...

journal_title：Journal of environmental quality

authors： Davis MA,Murphy JF,Boyd RS

更新日期：2001-01-01 00:00:00

abstract：:Soil chemical constituents influence soil structure and erosion potential. We investigated manure and inorganic fertilizer applications on soil chemistry (carbon [C] quality and exchangeable cations), aggregation, and phosphorus (P) loss in overland flow. Surface samples (0-5 cm) of a Hagerstown (fine, mixed, semiacti...

journal_title：Journal of environmental quality

authors： McDowell RW,Sharpley AN

更新日期：2003-01-01 00:00:00

abstract：:The advent of real-time, short-term farm management tools is motivated by the need to protect water quality above and beyond the general guidance offered by existing nutrient management plans. Advances in high-performance computing and hydrologic or climate modeling have enabled rapid dissemination of real-time inform...

journal_title：Journal of environmental quality

authors： Easton ZM,Kleinman PJA,Buda AR,Goering D,Emberston N,Reed S,Drohan PJ,Walter MT,Guinan P,Lory JA,Sommerlot AR,Sharpley A

更新日期：2017-11-01 00:00:00

abstract：:Groundwater contamination from NO-N leaching in corn ( L.) production with coarse-textured soils poses an environmental concern. Our objectives were to evaluate NO-N leaching in continuous corn (CC), corn after soybean ( L.) (CSb), and soybean after corn (SbC) in irrigated sandy soils in Minnesota related to (i) N rat...

journal_title：Journal of environmental quality

authors： Struffert AM,Rubin JC,Fernández FG,Lamb JA

更新日期：2016-09-01 00:00:00

abstract：:Long-term monitoring data from agricultural watersheds are needed to determine if efforts to reduce nutrient transport from crop and pasture land have been effective. Goodwater Creek Experimental Watershed (GCEW), located in northeastern Missouri, is a high-runoff-potential watershed dominated by claypan soils. The ob...

journal_title：Journal of environmental quality

authors： Lerch RN,Baffaut C,Kitchen NR,Sadler EJ

更新日期：2015-01-01 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：: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：:Chesapeake Bay has been the subject of intensive research on cultural eutrophication and extensive efforts to reduce nutrient inputs. In 1987 a commitment was made to reduce controllable sources of nitrogen (N) and phosphorous (P) by 40% by the year 2000, although the causes and effects of eutrophication were incomple...

journal_title：Journal of environmental quality

authors： Boesch DF,Brinsfield RB,Magnien RE

更新日期：2001-03-01 00:00:00

abstract：:The Langmuir model is commonly used for describing the sorption behavior of reactive solutes to surfaces and is often fit to sorption data using nonlinear least squares regression. An important assumption of least squares regression is that the predictor variable is error free. In the case of sorption data, this assum...

journal_title：Journal of environmental quality

authors： Bolster CH

更新日期：2008-08-08 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：:Transitional ecotones such as vegetated buffer strips, stream banks, and streambeds retain phosphorus (P) in the immediate surroundings of farmland. Yet the fate of P in these ecotones remains unclear. Our objectives were to (i) test the difference in the P pool composition of soil and sediment between sites surrounde...

journal_title：Journal of environmental quality

authors： Neidhardt H,Achten F,Kern S,Schwientek M,Oelmann Y

更新日期：2019-09-01 00:00:00

abstract：:Quantifying and managing diffuse P losses from small catchments or at the farm scale requires detailed knowledge of farming practices and their interaction with catchment processes. However, detailed knowledge may not be available and hence modeling is required. This paper demonstrates two approaches to developing too...

journal_title：Journal of environmental quality

authors： McDowell RW,Nash D,George A,Wang QJ,Duncan R

更新日期：2009-08-24 00:00:00

abstract：:The immobilization of Pb in contaminated soils as pyromorphite [Pb(5)(PO(4))(3)Cl, OH, F] through the addition of various phosphate amendments has gained much attention in the remediation community. However, it is difficult to fully determine the speciation and amount of soil Pb converted to pyromorphite by previously...

journal_title：Journal of environmental quality

authors： Scheckel KG,Ryan JA

更新日期：2004-07-01 00:00:00

abstract：:The nutrient content of sludge produced by municipal water treatment works often far exceeds the requirements of nearby crops. Transporting sludge further afield is not always economically viable. This study reports on the potential to export large volumes of anaerobically digested municipal sewage sludge through turf...

journal_title：Journal of environmental quality

authors： Tesfamariam EH,Annandale JG,Steyn JM,Stirzaker RJ

更新日期：2009-04-27 00:00:00

abstract：:The Water Erosion Prediction Project (WEPP) model has been tested for its ability to predict soil erosion, runoff, and sediment delivery over a wide range of conditions and scales for both hillslopes and watersheds. Since its release in 1995, there has been considerable interest in adding a chemical transport element ...

journal_title：Journal of environmental quality

authors： Perez-Bidegain M,Helmers MJ,Cruse R

更新日期：2010-11-01 00:00:00

abstract：:Intensively managed golf courses are perceived by the public as possibly adding nutrients to surface waters via surface transport. An experiment was designed to determine the transport of nitrate N and phosphate P from simulated golf course fairways of 'Tifway' bermudagrass [Cynodon dactylon (L.) Pers.]. Fertilizer tr...

journal_title：Journal of environmental quality

authors： Shuman LM

更新日期：2002-09-01 00:00:00

abstract：:Shifts in precipitation regimes due to the predicted climate changes can alter the water content in tropical soils and, consequently, may influence the toxicity of pesticides to soil fauna. This study assessed the influence of soil moisture content on the toxicity of the insecticide imidacloprid to the collembolans Fo...

journal_title：Journal of environmental quality

authors： Braúlio Hennig T,Ogliari Bandeira F,Dalpasquale AJ,Cardoso EJBN,Baretta D,Lopes Alves PR

更新日期：2020-11-01 00:00:00

abstract：:Pasture systems in Hawaii are based primarily on kikuyugrass (Pennisetum clandestinum Hochst. ex Chiov.). Relationships among kikuyugrass P concentration, animal P requirements, and various soil P determinations are needed to help identify source areas for implementing pasture management strategies to limit P loss via...

journal_title：Journal of environmental quality

authors： Mathews BW,Carpenter JR,Sollenberger LE,Tsang S

更新日期：2005-06-07 00:00:00

abstract：:This study investigated the ability of a 10-yr-old constructed wetland to treat metal-contaminated leachate emanating from a coal ash pile at the Widows Creek electric utility, Alabama (USA). The two vegetated cells, which were dominated by cattail (Typha latifolia L.) and soft rush (Juncus effusus L.), were very effe...

journal_title：Journal of environmental quality

authors： Ye ZH,Whiting SN,Qian JH,Lytle CM,Lin ZQ,Terry N

更新日期：2001-09-01 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：:We compare subsurface-drainage NO-N and total reactive phosphorus (TRP) concentrations and yields of select bioenergy cropping systems and their rotational phases. Cropping systems evaluated were grain-harvested corn-soybean rotations, grain- and stover-harvested continuous corn systems with and without a cover crop, ...

journal_title：Journal of environmental quality

authors： Daigh AL,Zhou X,Helmers MJ,Pederson CH,Horton R,Jarchow M,Liebman M

更新日期：2015-09-01 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：: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：:Managing biosolids from end-of-life municipal lagoons is a major challenge for many small communities where landfilling or spreading of biosolids on farmland is restricted. Contaminant removal via phytoextraction may be a viable remediation option for end-of-life lagoons in such communities. This study examined the ef...

journal_title：Journal of environmental quality

authors： Jeke N,Zvomuya F

更新日期：2018-11-01 00:00:00