Effect of elevated carbon dioxide concentration on carbon assimilation under fluctuating light.

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：: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 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：:Successful remediation of oil-contaminated agricultural land may include the goal of returning the land to prespill levels of agricultural productivity. This productivity may be measured by crop yield, quality, and safety, all of which are influenced by soil characteristics. This research was conducted to determine if...

journal_title：Journal of environmental quality

authors： O'Brien PL,DeSutter TM,Casey FXM,Wick AF,Khan E

更新日期：2017-07-01 00:00:00

abstract：:Consumption of microbially contaminated ground water can cause adverse health effects and the processes involved in pathogen transport in aquifers need to be understood. The influences of distance, flow velocity, and colloid size on colloid transport were examined in homogenous pea-gravel media using an 8-m column and...

journal_title：Journal of environmental quality

authors： Close ME,Pang L,Flintoft MJ,Sinton LW

更新日期：2006-07-06 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

authors： Singh BP,Hatton BJ,Balwant S,Cowie AL,Kathuria A

更新日期：2010-07-01 00:00:00

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：:Iodine (I) is an essential trace element commonly deficient in agricultural systems. Whereas there is much information on I in food crops, there is a lacuna of knowledge on the environmental factors that affect pasture I concentrations. We aimed to identify the most important environmental factors affecting the concen...

journal_title：Journal of environmental quality

authors： Jensen H,Orth B,Reiser R,Bürge D,Lehto NJ,Almond P,Gaw S,Thomson B,Lilburne L,Robinson B

更新日期：2019-09-01 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：:Conventional wisdom postulates that leaching losses of N from agriculture systems are dominated by NO(3)(-). Although the export of dissolved organic nitrogen (DON) into the groundwater has been recognized for more than 100 yr, it is often ignored when total N budgets are constructed. Leaching of DON into stream and d...

journal_title：Journal of environmental quality

authors： van Kessel C,Clough T,van Groenigen JW

更新日期：2009-02-06 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：:Agricultural ecosystems are of special interest for monitoring the potential for antibiotic resistance to spread through the environment and contribute to human exposure. Molecular methods, which target DNA, RNA, and other molecular components of bacterial cells, present certain advantages for characterizing and quant...

journal_title：Journal of environmental quality

authors： Luby E,Ibekwe AM,Zilles J,Pruden A

更新日期：2016-03-01 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：: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：:Lake Allatoona is a large reservoir north of Atlanta, GA, that drains an area of about 2870 km2 scheduled for a phosphorus (P) total maximum daily load (TMDL). The Soil and Water Assessment Tool (SWAT) model has been widely used for watershed-scale modeling of P, but there is little guidance on how to estimate P-relat...

journal_title：Journal of environmental quality

authors： Radcliffe DE,Lin Z,Risse LM,Romeis JJ,Jackson CR

更新日期：2009-01-13 00:00:00

abstract：:Copper sulfate (CuSO4) is applied periodically to commercial channel catfish (Ictalurus panctatus) ponds as an algicide or parasiticide. Current understanding of the chemistry of copper in soil-water systems suggests that copper may accumulate in pond sediments, although the forms and potential bioavailability of copp...

journal_title：Journal of environmental quality

authors： Han FX,Hargreaves JA,Kingery WL,Huggett DB,Schlenk DK

更新日期：2001-05-01 00:00:00

abstract：:Since its discovery in 1669, phosphorus (P) in the form of fertilizer has become an essential input for many agroecosystems. By introducing a concentrated P source, fertilizers increase short-term P export potential soon after their application and longer-term export potential by increasing soil fertility (legacy P). ...

journal_title：Journal of environmental quality

authors： Nash DM,McDowell RW,Condron LM,McLaughlin MJ

更新日期：2019-09-01 00:00:00

abstract：:Every year, the production of coal-bed natural gas in the Powder River Basin results in the discharge of large amounts of coal-bed methane water (CBMW) in Wyoming; however, no sustainable disposal methods for CBMW are currently available. A greenhouse study was conducted to evaluate the potential to use CBMW as a sour...

journal_title：Journal of environmental quality

authors： Sintim HY,Zheljazkov VD,Foley ME,Evangelista RL

更新日期：2017-05-01 00:00:00

abstract：:Surface seeps can be defined as locations where upwelling ground water saturates the surface for most of the year and excess ground water can be delivered to the stream channel via surface flowpaths. If a stream is predominantly fed by seeps, then ground water added to the stream via these surface flowpaths may result...

journal_title：Journal of environmental quality

authors： O'Driscoll MA,DeWalle DR

更新日期：2009-12-30 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：: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

authors： Chen C,Guron GK,Pruden A,Ponder M,Du P,Xia K

更新日期：2018-11-01 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：:Agricultural P losses are a global economic and water quality concern. Much of the current understanding of P dynamics in agricultural systems has been obtained from rainfall-driven runoff, and less is known about cold-season processes. An improved understanding of the magnitude, form, and transport flow paths of P lo...

journal_title：Journal of environmental quality

authors： Plach J,Pluer W,Macrae M,Kompanizare M,McKague K,Carlow R,Brunke R

更新日期：2019-07-01 00:00:00

abstract：:Poultry litter treatment with alum (Al(2)(SO(4))(3) . 18H(2)O) lowers litter phosphorus (P) solubility and therefore can lower litter P release to runoff after land application. Lower P solubility in litter is generally attributed to aluminum-phosphate complex formation. However, recent studies suggest that alum addit...

journal_title：Journal of environmental quality

authors： Warren JG,Penn CJ,McGrath JM,Sistani K

更新日期：2008-02-11 00:00:00

abstract：:Laboratory microcosm experiments were used to assess the effects of environmental parameters on the persistence of the Bacteroides 16S rRNA genes derived from equine fecal samples in stream water to investigate the utility of Bacteroides spp. as fecal indicator organisms. Quantitative real-time polymerase chain reacti...

journal_title：Journal of environmental quality

authors： Bell A,Layton AC,McKay L,Williams D,Gentry R,Sayler GS

更新日期：2009-04-27 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：:Denitrifying bioreactors (DNBRs) harness the natural capacity of microorganisms to convert bioavailable nitrogen (N) into inert nitrogen gas (N) by providing a suitable anaerobic habitat and an organic carbon energy source. Woodchip systems are reported to remove 2 to 22 g N m d, but the potential to enhance denitrifi...

journal_title：Journal of environmental quality

authors： Bock EM,Coleman B,Easton ZM

更新日期：2016-05-01 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：:Denitrifying bioreactors using woodchips or other slow-release carbon sources can be an effective method for removing nitrate (NO) from wastewater and tile drainage. However, the ability of these systems to remove fecal microbes from wastewater has been largely uninvestigated. In this study, reductions in fecal indica...

journal_title：Journal of environmental quality

authors： Rambags F,Tanner CC,Stott R,Schipper LA

更新日期：2016-05-01 00:00:00

abstract：:Most states in the USA have adopted P Indexing to guide P-based management of agricultural fields by identifying the relative risk of P loss at farm and watershed scales. To a large extent, this risk is based on hydrologic principles that frequently occurring storms can initiate surface runoff from fields. Once initia...

journal_title：Journal of environmental quality

authors： Sharpley AN,Kleinman PJ,Heathwaite AL,Gburek WJ,Weld JL,Folmar GJ

更新日期：2008-06-23 00:00:00