Phosphorus in Hawaiian kikuyugrass pastures and potential phosphorus release to water.

abstract：:Man has land-applied societal nonhazardous wastes for centuries as a means of disposal and to improve the soil via the recycling of nutrients and the addition of organic matter. Nonhazardous wastes include a vast array of materials, including manures, biosolids, composts, wastewater effluents, food-processing wastes, ...

journal_title：Journal of environmental quality

authors： O'Connor GA,Elliott HA,Basta NT,Bastian RK,Pierzynski GM,Sims RC,Smith JE Jr

更新日期：2005-01-01 00:00:00

abstract：:Riparian zones are recognized as landscape features that buffer streams from pollutants, particularly nitrogen. The objectives of this experiment were to (i) assess denitrification activity within a riparian zone and (ii) determine the influence of physical, chemical, and landscape features on denitrification. This ex...

journal_title：Journal of environmental quality

authors： Hunt PG,Matheny TA,Stone KC

更新日期：2004-11-01 00:00:00

abstract：:Metal-thiol complexes can enhance metal uptake by plant roots and microorganisms, therefore it is important to determine whether thiols effectively solubilize these metals from the soil matrix. Extractions were conducted by combining 1 g contaminated soil and 10 mL of 10 mmol L(-1) thiol solution and shaking for 1 h. ...

journal_title：Journal of environmental quality

authors： Vadas TM,Ahner BA

更新日期：2009-10-29 00:00:00

abstract：:Vertical distributions of (36)Cl and (99)Tc are presented from deep and shallow lysimeters above artificially controlled water tables for a 4-yr experiment from 1990 to 1993. Activity concentration profiles were all measured in late summer when a winter wheat (Triticum aestivum L. cv. Pastiche) crop was harvested. Aft...

journal_title：Journal of environmental quality

authors： Shaw G,Wadey P,Bell JN

更新日期：2004-11-01 00:00:00

abstract：:Manure from beef cattle feedyards is a valuable source of nutrients and assists with maintaining soil quality. However, humification and decomposition processes occurring during feedyard manure's on-farm life cycle influence the forms, concentrations, and availability of carbon (C) and nutrients such as nitrogen (N) a...

journal_title：Journal of environmental quality

authors： Waldrip HM,He Z,Todd RW,Hunt JF,Rhoades MB,Cole NA

更新日期：2014-03-01 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：:Bacterial extracellular polymers (BEP) affect the translocation and fate of organic and inorganic pollutants in terrestrial and aquatic ecosystems. In this study, BEP from activated sludge was compared with sludge dissolved organic matter (DOM) in terms of behavior and effects on the mobilization and bioavailability o...

journal_title：Journal of environmental quality

authors： Zhou LX,Zhou SG,Zhan XH

更新日期：2004-01-01 00:00:00

abstract：:High levels of fecal bacteria are a concern for recreational waters; however, the source of contamination is often unknown. This study investigated whether direct sequencing of a bacterial gene could be utilized for detecting genetic differences between bacterial strains for microbial source tracking. A 525-nucleotide...

journal_title：Journal of environmental quality

authors： Ram JL,Ritchie RP,Fang J,Gonzales FS,Selegean JP

更新日期：2004-05-01 00:00:00

abstract：:Scaling in situ soil water content time series data to a large spatial domain is a key element of watershed environmental monitoring and modeling. The primary method of estimating and monitoring large-scale soil water content distributions is via in situ networks. It is critical to establish the stability of in situ n...

journal_title：Journal of environmental quality

authors： Cosh MH,Starks PJ,Guzman JA,Moriasi DN

更新日期：2014-07-01 00:00:00

abstract：:Intensive livestock operations can release odorous gases from stored or land-applied manure. We measured concentrations of dust and 14 odor-causing gases at increasing distances from four feedlots near Lethbridge, southern Alberta, Canada. Concentration was determined from the amount of total dust or gas accumulated i...

journal_title：Journal of environmental quality

authors： McGinn SM,Janzen HH,Coates T

更新日期：2003-07-01 00:00:00

abstract：:State and federal regulatory agencies depend on quality field data for determining the effects of agricultural management practices on fumigant emissions to develop sound, science-based policies and regulations on preplant soil fumigants. Field plot tests, using growers' standard field operation procedures, were used ...

journal_title：Journal of environmental quality

authors： Gao S,Hanson BD,Qin R,Wang D,Yates SR

更新日期：2011-09-01 00:00:00

abstract：:Previous studies have suggested that phenolic acids from legume green manures may contribute to weed control through allelopathy. The objectives of this study were to investigate the oxidation reactions of phenolic acids in soil and to determine the subsequent effects of oxidation upon phytotoxicity. Soils were reacte...

journal_title：Journal of environmental quality

authors： Ohno T

更新日期：2001-09-01 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：:In a semiarid environment, climate is a critical factor in the decomposition of surface-applied biosolids. This study examined the effect of 2- to 7-yr exposure times on the composition of single applications of New York, NY biosolids in western Texas. Exposure time effects on organic matter, N, P, S, Cu, Cr, Pb, Hg, ...

journal_title：Journal of environmental quality

authors： Jaynes WF,Zartman RE,Sosebee RE,Wester DB

更新日期：2003-09-01 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：:Coastal aquatic ecosystems are increasingly affected by diffuse source nutrient water pollution from agricultural activities in coastal catchments, even though these ecosystems are important from a social, environmental and economic perspective. To warrant sustainable economic development of coastal regions, we need t...

journal_title：Journal of environmental quality

authors： Roebeling PC,Rocha J,Nunes JP,Fidélis T,Alves H,Fonseca S

更新日期：2014-01-01 00:00:00

abstract：:Phosphorous (P) and nitrogen (N) in runoff from agricultural fields are key components of nonpoint-source pollution and can accelerate eutrophication of surface waters. A laboratory study was designed to evaluate effects of near-surface hydraulic gradients on P and N losses in surface runoff from soil pans at 5% slope...

journal_title：Journal of environmental quality

authors： Zheng FL,Huang CH,Norton LD

更新日期：2004-11-01 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：:Manure application supplies plant nutrients, but also leads to trace element accumulation in soil. This study investigated total and EDTA-extractable B, Cd, Co, Cu and Zn in soil after 25 annual manure applications. The residual effect of 14 annual manure applications followed by 11 yr with no applications was also in...

journal_title：Journal of environmental quality

authors： Benke MB,Indraratne SP,Hao X,Chang C,Goh TB

更新日期：2008-05-02 00:00:00

abstract：:Buffer strips between land and waters are widely applied measures in diffuse pollution management, with desired outcomes across other factors. There remains a need for evidence of pollution mitigation and wider habitat and societal benefits across scales. This paper synthesizes a collection of 16 new primary studies a...

journal_title：Journal of environmental quality

authors： Stutter M,Kronvang B,Ó hUallacháin D,Rozemeijer J

更新日期：2019-03-01 00:00:00

abstract：:The rapid economic and industrial growth of China, exemplified by a 10-fold increase in its gross domestic product in the past 15 years, has lifted millions of its citizens out of poverty but has simultaneously led to severe environmental problems. The World Health Organization estimates that approximately 2.4 million...

journal_title：Journal of environmental quality

authors： Zhang M,Xu J

更新日期：2011-11-01 00:00:00

abstract：:This study used manual full cross-sectional flow discrete sampling and suspended sediment concentration (SSC) methods to gravimetrically characterize noncolloidal hetero-disperse particulate matter (PM). This PM was examined as suspended, settleable, and sediment fractions to assess the distinct transport behavior of ...

journal_title：Journal of environmental quality

authors： Sansalone JJ,Kim JY

更新日期：2008-08-08 00:00:00

abstract：:The effect of irrigation with reclaimed effluent (RE) (after secondary treatment) on the mechanisms and rates of nitrite formation, N2O emissions, and N mineralization is not well known. Grumosol (Chromoxerert) soil was incubated for 10 to 14 d with fresh water (FW) and RE treated with 15NO3- and 15NH4+ to provide a b...

journal_title：Journal of environmental quality

authors： Master Y,Laughlin RJ,Stevens RJ,Shaviv A

更新日期：2004-05-01 00:00:00

abstract：:Annual and multiyear records of trace element deposition are difficult to develop using monitoring systems but have proven feasible using plant material in several settings. Here, we used material from several tree species (Populus deltoides W. Bartram ex Marshall, Platanus occidentalis L., and Ginkgo biloba L.) to de...

journal_title：Journal of environmental quality

authors： Mazari K,Filippelli GM

更新日期：2020-01-01 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：:Conversions of Mollisols from prairie to cropland and subsequent changes in crop production practices in the Midwestern USA have resulted in changes in soil organic matter. Few studies have used archived samples, long-term resampling of soils to a depth of 1 m, and space for time studies to document these changes. We ...

journal_title：Journal of environmental quality

authors： David MB,McIsaac GF,Darmody RG,Omonode RA

更新日期：2009-01-13 00:00:00

abstract：:Atmospheric deposition samples were collected over 15 mo at several locations near an operating smelter and an abandoned Pb smelter to investigate the contribution of Pb smelting to depositional fluxes and potential local air quality degradation. Samples were analyzed for As, Cd, Cu, Pb, and Zn and subjected to scanni...

journal_title：Journal of environmental quality

authors： Xing W,Yang H,Ippolito JA,Zhao Q,Zhang Y,Scheckel KG,Li L

更新日期：2020-11-01 00:00:00

abstract：:Biosolids can be a source of metals and metal nanoparticles. The objective of this study was to quantify and characterize the accumulation and transport of silver (Ag) in a natural soil that has received agronomically recommended rates of biosolids as fertilizer from 1994 to 2017. Total Ag concentrations were measured...

journal_title：Journal of environmental quality

authors： Taylor SE,Pearce CI,Chowdhury I,Kovarik L,Leavy I,Baum S,Bary AI,Flury M

更新日期：2020-11-01 00:00:00

abstract：:Water resource managers seeking to optimize stream ecosystem services and abstractions of water from watersheds need an understanding of the importance of land use, physical and climatic characteristics, and hydrography on different low flow components of stream hydrographs. Within 33 USGS gaged watersheds of southern...

journal_title：Journal of environmental quality

authors： Morrison AC,Gold AJ,Pelletier MC

更新日期：2016-05-01 00:00:00

abstract：:Increasing chloride (Cl) concentration in soil solution has been shown to increase cadmium (Cd) concentration in soil solution and Cd uptake by plants, when grown in phosphate fertilizer- or biosolid-amended soils. However, previous experiments did not distinguish between the effect of Cl on biosolid-borne Cd compared...

journal_title：Journal of environmental quality

authors： Weggler K,McLaughlin MJ,Graham RD

更新日期：2004-03-01 00:00:00