Abstract:
:Contamination of unfenced streams with P, sediments, and pathogenic bacteria from cattle (Bos taurus) activity may be affected by the availability of shade and alternative water sources. The objectives of this study were to evaluate water quality in two streams draining tall fescue (Festuca arundinacea Schreb.)-common bermudagrass (Cynodon dactylon L.) pastures with different shade distribution, and to quantify the effects of alternative water sources on stream water quality. For 3 yr, loads of dissolved reactive phosphorus (DRP), total phosphorus (TP), and total suspended solids (TSS) were measured during storm flow, and loads of DRP, TP, TSS, and Escherichia coli were measured every 14 d during base flow. We also used GPS collars to determine amount of time cattle spent in riparian areas. Our results showed that cattle-grazed pastures with unfenced streams contributed significant loads of DRP, TP, TSS, and E. coli to surface waters (p < 0.01). Time spent by cattle in riparian areas as well as storm flow loads of DRP, TP, and TSS were larger (p < 0.08) in the pasture with the smaller amount of nonriparian shade. Water trough availability decreased base flow loads of TSS and E. coli in both streams, and decreased time cattle spent in riparian areas in the pasture with the smaller amount of nonriparian shade (p < 0.08). Our results indicate that possible BMPs to reduce contamination from cattle-grazed pastures would be to develop or encourage nonriparian shade and to provide cattle with alternative water sources away from the stream.
journal_name
J Environ Qualjournal_title
Journal of environmental qualityauthors
Byers HL,Cabrera ML,Matthews MK,Franklin DH,Andrae JG,Radcliffe DE,McCann MA,Kuykendall HA,Hoveland CS,Calvert VH 2nddoi
10.2134/jeq2004.0335subject
Has Abstractpub_date
2005-11-07 00:00:00pages
2293-300issue
6eissn
0047-2425issn
1537-2537pii
34/6/2293journal_volume
34pub_type
杂志文章abstract::Nitrogen sources in the Mississippi River basin have been linked to degradation of stream ecology and to Gulf of Mexico hypoxia. In 2013, the USGS and the USEPA characterized water quality stressors and ecological conditions in 100 wadeable streams across the midwestern United States. Wet conditions in 2013 followed a...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.2134/jeq2015.12.0591
更新日期:2016-09-01 00:00:00
abstract::Chemical immobilization is a relatively inexpensive in situ remediation method that reduces soil contaminant solubility, but the ability of this remediation treatment to reduce heavy metal bioavailability and ecotoxicity to soil invertebrates has not been evaluated. Our objectives were to (i) assess the ability of che...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.2134/jeq2001.3041231x
更新日期:2001-07-01 00:00:00
abstract::Theories suggest that rapid microbial growth rates lead to quicker development of metal resistance. We tested these theories by adding hexavalent chromium [Cr(VI)] to soil, sowing Indian mustard (Brassica juncea), and comparing rhizosphere and bulk soil microbial community responses. Four weeks after the initial Cr(VI...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.2134/jeq2005.0438
更新日期:2007-04-05 00:00:00
abstract::The influence of biochar on nitrogen (N) transformation processes in soil is not fully understood. This study assessed the influence of four biochars (wood and poultry manure biochars synthesized at 400 degrees C, nonactivated, and at 550 degrees C, activated, abbreviated as: W400, PM400, W550, PM550, respectively) on...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.2134/jeq2009.0138
更新日期:2010-07-01 00:00:00
abstract::Sulfonylurea herbicides are applied at relatively low rates (3 to 40 g ha(-1)) to control weeds in a variety of crops across the Canadian prairies. Because of their high phytotoxicity and the likelihood of their transport in surface runoff, there is concern about their possible impact to aquatic ecosystems. Little is ...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.2134/jeq2005.0462
更新日期:2006-10-27 00:00:00
abstract::Phosphorus (P) budgets for large watersheds are often used to predict trends in riverine P export. To test such predictions, we calculated annual P budgets for 1975-1995 for soils of the Maumee and Sandusky watersheds of northwestern Ohio and compared them with riverine P export from these watersheds. Phosphorus input...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.2134/jeq2002.9600
更新日期:2002-01-01 00:00:00
abstract::Phytoextraction has the potential to remove heavy metals from contaminated soil, and chelants can be used to improve the capabilities of phytoextraction. However, environmentally persistent chelants can cause metal leaching and groundwater pollution. A column experiment was conducted to evaluate the viability of biode...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.2134/jeq2016.01.0020
更新日期:2016-05-01 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
pub_type: 杂志文章
doi:10.2134/jeq2001.303702x
更新日期:2001-05-01 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
pub_type: 杂志文章
doi:10.2134/jeq2005.0470
更新日期:2006-07-06 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
pub_type: 杂志文章
doi:10.2134/jeq2004.6780
更新日期:2004-03-01 00:00:00
abstract::Biochar has been heralded as an amendment to revitalize degraded soils, improve soil carbon sequestration, increase agronomic productivity, and enter into future carbon trading markets. However, scientific and economic technicalties may limit the ability of biochar to consistently deliver on these expectations. Past r...
journal_title:Journal of environmental quality
pub_type: 杂志文章,评审
doi:10.2134/jeq2011.0069
更新日期:2012-07-01 00:00:00
abstract::An emerging poultry manure management practice is in-house windrowing to disinfect the litter. However, this practice is likely to increase emissions of ammonia (NH) and nitrous oxide (NO) from the windrowed litter. The objective of this study was to quantitatively compare NH and NO emissions from broiler houses with ...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.2134/jeq2016.09.0368
更新日期:2017-05-01 00:00:00
abstract::This study compares two methods of dairy manure application-surface broadcast and shallow disk injection-on the fate and transport of natural estrogens in surface runoff from 12 field plots in central Pennsylvania. Ten natural surface runoff events were sampled over a 9-mo period after fall manure application. Results...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.2134/jeq2016.05.0173
更新日期:2016-11-01 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
pub_type: 杂志文章
doi:10.2134/jeq2009.0283
更新日期:2010-02-19 00:00:00
abstract::Urban sewage sludge (USS) is increasingly applied to agricultural soils, but mixed results have been reported because of variations in reuse conditions. Most field trials have been conducted in cropping systems, which conceal intrinsic soil responses to sludge amendments due to the rhizosphere effect and farming pract...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.1002/jeq2.20093
更新日期:2020-07-01 00:00:00
abstract::Soil organic phosphorus (SOP) can greatly contribute to plant-available P and P nutrition. The study was conducted to determine the effects of organic amendments on organic P fractions and microbiological activities in paddy soils. Samples were collected at the Changshu Agro-ecological Experiment Station in Tahu Lake ...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.2134/jeq2005.0194
更新日期:2006-05-31 00:00:00
abstract::There is interest in understanding effects of amending soil with manure in a cultivation setting and if composting can provide benefits. Raw or composted manure from cattle administered with and without sulfamethazine, chlortetracycline, and tylosin was amended to loamy sand and silty clay loam soils, where lettuce ( ...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.2134/jeq2018.02.0078
更新日期:2018-11-01 00:00:00
abstract::Environmental monitoring is essential for assessing the impact of human activities on the environment. Monitoring data are used to ascertain that environmental standards are met, to inform policy making, to determine trends, and to provide parameterization data for prediction models. The design of monitoring programs ...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.2134/jeq2019.02.0056
更新日期:2019-07-01 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
pub_type: 杂志文章
doi:10.2134/jeq2004.0363
更新日期:2005-08-09 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
pub_type: 杂志文章
doi:10.2134/jeq2010.0466
更新日期:2012-01-01 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
pub_type: 杂志文章
doi:10.2134/jeq2004.1024
更新日期:2004-05-01 00:00:00
abstract::Microbial mineralization of urea and uric acid in poultry litter results in the production of ammonia, which can lead to decreased poultry performance, malodorous emissions, and loss of poultry litter value as a fertilizer. Despite the fact that this is a microbial process, little is known about how the microbial popu...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.2134/jeq2008.0024
更新日期:2008-10-23 00:00:00
abstract::Wetland soils are able to exhibit both consumption and production of greenhouse gases, and they play an important role in the regulation of the global carbon (C) cycle. Still, it is challenging to accurately evaluate the actual amount of C stored in wetlands. The incorporation of remote sensing data into digital soil ...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.2134/jeq2016.03.0076
更新日期:2016-11-01 00:00:00
abstract::Prudent interventions for reducing selenium (Se) in groundwater and streams within an irrigated river valley must be guided by a sound understanding of current field conditions. An emerging picture of the nature of Se contamination within the Lower Arkansas River Valley in Colorado is provided by data from a large num...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.2134/jeq2008.0499
更新日期:2009-10-29 00:00:00
abstract::Although many studies have measured denitrification in stream sediments, few have utilized these data with local water column and sediment measurements to develop a predictive model for NO uptake. In this study, sediment denitrification was measured from cores in five streams under various land uses in south-central M...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.2134/jeq2013.06.0249
更新日期:2014-05-01 00:00:00
abstract::Cadmium (Cd) is a nonessential element that occurs at above-background concentrations in many New Zealand (NZ) soils. Most of this Cd is due to the historical application of single superphosphate that was made from Nauru phosphate rock containing between 400 and 600 mg Cd kg P. Pasture Cd uptake exacerbates the entry ...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.2134/jeq2013.09.0367
更新日期:2014-05-01 00:00:00
abstract::Roadside vegetation provides a multitude of ecosystem services, including pollutant remediation, runoff reduction, wildlife habitat, and aesthetic scenery. Establishment of permanent vegetation along paved roads after construction can be challenging, particularly within 1 m of the pavement. Adverse soil conditions cou...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.1002/jeq2.20184
更新日期:2020-12-10 00:00:00
abstract::During recent decades, a change in land use in the mountainous regions of Northern Thailand has been accompanied by an increased input of agrochemicals. We identified lateral water flow and pesticide transport pathways and mechanisms in a Hapludult on a sloped litchi orchard in Northern Thailand. During two rainy seas...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.2134/jeq2006.0241
更新日期:2007-06-27 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
pub_type: 杂志文章
doi:10.2134/jeq2017.11.0418
更新日期:2018-07-01 00:00:00
abstract::We investigated the seasonal patterns of denitrification rates and potentials in soil profiles along the topohydrosequence formed at the upland-wetland interface in three riparian wetlands with different vegetation cover (i.e., forest, understory vegetation, and grass). Denitrification was measured using the acetylene...
journal_title:Journal of environmental quality
pub_type: 杂志文章
doi:10.2134/jeq2002.1025
更新日期:2002-05-01 00:00:00