Roots-Enhanced Preferential Flows in Deciduous and Coniferous Forest Soils Revealed by Dual-Tracer Experiments.

abstract：:We examined constraints on soil CO2 respiration in natural oak woodlands, and adjacent vineyards that were converted approximately 30 yr ago from oak woodlands, in the Oakville Region of Napa Valley, California. All sites were located on the same soil type, a Bale (variant) gravelly loam (fine-loamy, mixed, superactiv...

journal_title：Journal of environmental quality

authors： Carlisle EA,Steenwerth KL,Smart DR

更新日期：2006-07-06 00:00:00

abstract：:Endosulfan (6,7,8,9,10,10-hexachloro-1,5,5a,6,9,9a-hexahydro-6,9methano-2,4,3-benzodioxathiepin 3-oxide), a pesticide that is highly toxic to aquatic organisms, is widely used in the cotton (Gossypium hirsutum L.) industry in Australia and is a risk to the downstream riverine environment. We used the GLEAMS model to e...

journal_title：Journal of environmental quality

authors： Connolly RD,Kennedy IR,Silburn DM,Simpson BW,Freebairn DM

更新日期：2001-05-01 00:00:00

abstract：:The stabilization of Pb on additions of P to contaminated soils and mine spoil materials has been well documented. It is clear from the literature that different P sources result in different efficacies of Pb stabilization in the same contaminated material. We hypothesized that the differences in the efficacy of Pb st...

journal_title：Journal of environmental quality

authors： Baker LR,Pierzynski GM,Hettiarachchi GM,Scheckel KG,Newville M

更新日期：2014-03-01 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：: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：: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 increasing number of polluted watersheds and water bodies with total maximum daily loads (TMDLs) has resulted in increased research to find methods that effectively and universally identify fecal pollution sources. A fundamental requirement to identify such methods is understanding the microbial and chemical proce...

journal_title：Journal of environmental quality

authors： Hall KK,Evanshen BG,Maier KJ,Scheuerman PR

更新日期：2014-01-01 00:00:00

abstract：:Metal contaminants in soils can persist for millennia, causing lasting negative impacts on local ecosystems. Long-term contaminant bioavailability is related to soil pH and to the strength and stability of solid-phase associations. We combined physical density separation with synchrotron-based microspectroscopy to red...

journal_title：Journal of environmental quality

authors： Rosenfeld CE,Chaney RL,Tappero RV,Martínez CE

更新日期：2017-03-01 00:00:00

abstract：:Control methods are needed to abate NH losses from swine anaerobic lagoons to reduce the contribution of confined swine operations to air pollution. In a 15-mo meso-scale column study, we evaluated the effect of manure pretreatment on water quality, reduction of N losses, and sludge accumulation in swine lagoons using...

journal_title：Journal of environmental quality

authors： Szogi AA,Vanotti MB

更新日期：2014-07-01 00:00:00

abstract：:Environmental regulations on greenhouse gas (GHG) emissions from corn (Zea mays L.)-ethanol production require accurate assessment methods to determine emissions savings from coproducts that are fed to livestock. We investigated current use of coproducts in livestock diets and estimated the magnitude and variability i...

journal_title：Journal of environmental quality

authors： Bremer VR,Liska AJ,Klopfenstein TJ,Erickson GE,Yang HS,Walters DT,Cassman KG

更新日期：2010-02-19 00:00:00

abstract：:The use of marginal lands for biofuel production has been proposed as a promising solution for meeting biofuel demands while avoiding food-feed-fuel conflicts. However, uncertainty surrounds whether marginal lands can be reliably located, as well as their inherent biofuel potential and the possible environmental impac...

journal_title：Journal of environmental quality

authors： Bandaru V,Izaurralde RC,Manowitz D,Link R,Zhang X,Post WM

更新日期：2013-11-01 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：:Placement strategies for P fertilizer can affect P availability to crops and influence the amounts and forms of P removed from soil in runoff, contributing to eutrophication. On the Canadian prairies, most runoff occurs during snowmelt. Two adjacent farm fields in Saskatchewan, Canada, were used to assess the effects ...

journal_title：Journal of environmental quality

authors： Wiens JT,Cade-Menun BJ,Weiseth B,Schoenau JJ

更新日期：2019-05-01 00:00:00

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：:Bacterial contamination of karst aquifers is a global concern as water quality deteriorates in the face of decreasing water security. Traditional abiotic groundwater tracers, which do not exhibit surface properties similar to bacteria, may not be good proxies for risk assessment of bacterial transport in karst environ...

journal_title：Journal of environmental quality

authors： Bandy A,Cook K,Fryar AE,Polk J

更新日期：2018-01-01 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：:Increased application of nitrogen (N) fertilizers in agricultural systems contributes to significant environmental impacts, including eutrophication of fresh and coastal waters. Rice cutgrass [ (L.) Sw.] can significantly enhance denitrification potential in agricultural ditch sediments and potentially reduce N export...

journal_title：Journal of environmental quality

authors： Speir SL,Taylor JM,Scott JT

更新日期：2017-11-01 00:00:00

abstract：:When wetlands are disturbed by cattle, pulses of contaminants may be released. We studied nitrogen exports from a small pastoral wetland (1725 m) in the Lake Taupo Catchment, New Zealand, to which cattle and sheep had periodic access. Flow, turbidity, and water quality samples were collected at the wetland outlet over...

journal_title：Journal of environmental quality

authors： McKergow LA,Rutherford JC,Timpany GC

更新日期：2012-09-01 00:00:00

abstract：:In this study, we develop and apply a methodology to reduce an existing monitoring network to find an optimal configuration of a smaller network. We use a criterion based on locally weighted regression with two different weight functions. The methodology is applied to the Dutch national SO2 network and offers the poss...

journal_title：Journal of environmental quality

authors： Boer EP,Dekkers AL,Stein A

更新日期：2002-01-01 00:00:00

abstract：:Tile drained land with phosphorus (P)-rich topsoil is prone to P loss, which can impair surface water quality via eutrophication. We used by-products from steel and energy industries to mitigate P loss from tile drains. For each by-product, P sorption maximum (P(max)) and strength (k) were determined, while a fluvariu...

journal_title：Journal of environmental quality

authors： McDowell RW,Sharpley AN,Bourke W

更新日期：2008-06-23 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：: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：:Laboratory incubations of four broiler litter (BL) samples at 30°C were performed to investigate the effect of water content on the decay of uric acid nitrogen (UAN) and xanthine nitrogen (XN). UAN and XN concentrations increased in all samples during a period of 1 to 8 d before declining for the remaining 30 d. The i...

journal_title：Journal of environmental quality

authors： Mowrer J,Cabrera M,Rasmussen T,Cassity-Duffey K

更新日期：2014-11-01 00:00:00

abstract：:Gypsum has a long history as a soil amendment. Information on how flue gas desulfurization (FGD) gypsum affects soil, water, and plant properties across a range of climates and soils is lacking. We conducted a meta-analysis using data from 10 field sites in the United States (Alabama, Arkansas, Indiana, New Mexico, No...

journal_title：Journal of environmental quality

authors： Kost D,Ladwig KJ,Chen L,DeSutter TM,Espinoza L,Norton LD,Smeal D,Torbert HA,Watts DB,Wolkowski RP,Dick WA

更新日期：2018-09-01 00:00:00

abstract：:Chloride contamination of rivers due to nonpoint sources is increasing throughout developed temperate regions due to road salt application in winter. We developed a river-network model of chloride loading to watersheds to estimate road salt application rates and investigated the meteorological factors that control riv...

journal_title：Journal of environmental quality

authors： Zuidema S,Wollheim WM,Mineau MM,Green MB,Stewart RJ

更新日期：2018-07-01 00:00:00

abstract：:Increased phosphorus (P) availability under flooded, anaerobic conditions may accelerate P loss from soils to water bodies. Existing knowledge on P release to floodwater from flooded soils is limited to summer conditions and/or room temperatures. Spring snowmelt runoff, which occurs under cold temperatures with freque...

journal_title：Journal of environmental quality

authors： Kumaragamage D,Concepcion A,Gregory C,Goltz D,Indraratne S,Amarawansha G

更新日期：2020-05-01 00:00:00

abstract：:There are growing concerns regarding the fate of nutrients, especially phosphorus (P), from land application of animal waste. One approach being studied to reduce runoff losses of P is to treat manure or the soil receiving manure with chemical amendments such as gypsum. This study used rainfall simulations to examine ...

journal_title：Journal of environmental quality

authors： Torbert HA,Watts DB

更新日期：2014-01-01 00:00:00

abstract：:Phosphorus (P) runoff from manure can lead to eutrophication of surface water and algae growth. This study evaluates the impacts of alternative P reduction practices on dairy farm net returns and on potential P runoff. The P control practices include dairy herd nutrient management, crop nutrient management, and runoff...

journal_title：Journal of environmental quality

authors： Bosch DJ,Wolfe ML,Knowlton KF

更新日期：2006-04-26 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：:Current vegetable production systems use polyethylene (plastic) mulch and require multiple applications of agrochemicals. During rain events, runoff from vegetable production is enhanced because 50 to 75% of the field is covered with an impervious surface. This study was conducted to quantify off-site movement of soil...

journal_title：Journal of environmental quality

authors： Rice PJ,McConnell LL,Heighton LP,Sadeghi AM,Isensee AR,Teasdale JR,Abdul-Baki AA,Harman-Fetcho JA,Hapeman CJ

更新日期：2001-09-01 00:00:00