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Journal of Environmental Quality : Just Published

 

Accepted, edited articles are published here after author proofing to provide rapid publication and better access to the newest research in the Journal of Environmental Quality. Articles are compiled into bimonthly issues at www.agronomy.org/publications/jeq, www.crops.org/publications/jeq, and www.soils.org/publications/jeq, which include the complete archive. Citation | Articles posted here are considered published and may be cited by the doi.

Maguire, R.O., P.J. A. Kleinman, C.J. Dell, D.B. Beegle, R.C. Brandt, J.M. McGrath, and Q.M. Ketterings. 2011. Manure application technology in reduced tillage and forage systems: A review. J. Environ. Qual. doi: 10.2134/jeq2009.0228

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Current issue: J. Environ. Qual. 44(3)



  • BIOREMEDIATION AND BIODEGRADATION

    • Bartłomiej Woś and Marcin Pietrzykowski
      Simulation of Birch and Pine Litter Influence on Early Stage of Reclaimed Soil Formation Process under Controlled Conditions

      The impact of litter decomposition on chemical substrate properties and element leaching during early soil formation in afforested post-mine sites and the influence of different tree species are key issues in new ecosystem development. Scots pine (Pinus sylvestris L.) and common birch (Betula pendula Roth) are important pioneering species used in afforestation of post-mine sites in central and eastern Europe. The aim of this study was to assess the impact of litter decomposition of these species on the chemical properties of mine soil substrates. The impact of litter decomposition on soil properties was tested on quaternary and neogene substrates with different textures (sands, loams, and mixtures of clays and sands) in a controlled incubation experiment using PVC columns. (continued)


      doi:10.2134/jeq2014.07.0315
      Published: April 24, 2015



  • ENVIRONMENTAL MODELS, MODULES, AND DATASETS

    • W. Ford, K. King, M. Williams, J. Williams and N. Fausey
      Sensitivity Analysis of the Agricultural Policy/Environmental eXtender (APEX) for Phosphorus Loads in Tile-Drained Landscapes

      Numerical modeling is an economical and feasible approach for quantifying the effects of best management practices on dissolved reactive phosphorus (DRP) loadings from agricultural fields. However, tools that simulate both surface and subsurface DRP pathways are limited and have not been robustly evaluated in tile-drained landscapes. The objectives of this study were to test the ability of the Agricultural Policy/Environmental eXtender (APEX), a widely used field-scale model, to simulate surface and tile P loadings over management, hydrologic, biologic, tile, and soil gradients and to better understand the behavior of P delivery at the edge-of-field in tile-drained midwestern landscapes. To do this, a global, variance-based sensitivity analysis was performed, and model outputs were compared with measured P loads obtained from 14 surface and subsurface edge-of-field sites across central and northwestern Ohio. (continued)


      doi:10.2134/jeq2014.12.0527
      Published: April 24, 2015



  • PLANT AND ENVIRONMENT INTERACTIONS

    • B. C. T. Macdonald, J. Gillen, S. Tuomi, J. Newport, P. S. Barton and A. D. Manning
      Can Coarse Woody Debris Be Used for Carbon Storage in Open Grazed Woodlands?

      Carbon dioxide off-setting policy in the agricultural sector is focused on manipulating the terrestrial carbon cycle by reafforestation and increasing the retention of carbon within agricultural soils. We quantified the amount of carbon stored in the living and dead biomass and the surface soils of a previously grazed woodland ecosystem. We demonstrate that modification of coarse woody debris management could potentially store 8 to 15 t C ha−1. (continued)


      doi:10.2134/jeq2014.10.0445
      Published: April 24, 2015



  • SHORT COMMUNICATIONS

    • Daniel G. Strawn, April C. Rigby, Leslie L. Baker, Mark D. Coleman and Iris Koch
      Biochar Soil Amendment Effects on Arsenic Availability to Mountain Brome ( Bromus marginatus )

      Biochar is a renewable energy byproduct that shows promise for remediating contaminated mine sites. A common contaminant at mine sites is arsenic (As). In this study, the effects of biochar amendments to a mine-contaminated soil on As concentrations in mountain brome (Bromus marginatus Nees ex Steud.) were investigated. In the biochar-amended soil, mountain brome had greater root biomass and decreased root and shoot As concentrations. (continued)


      doi:10.2134/jeq2014.11.0477
      Published: April 24, 2015



  • SPECIAL SECTION: SOIL IN THE CITY

    • Arjun K. Venkatesan, Abdul-Hakeem M. Hamdan, Vanessa M. Chavez, Jasmine D. Brown and Rolf U. Halden
      Mass Balance Model for Sustainable Phosphorus Recovery in a US Wastewater Treatment Plant

      In response to limited phosphorus (P) reserves worldwide, several countries have demonstrated the prospect of recovering significant amounts of P from wastewater treatment plants (WWTPs). This technique uses enhanced biological P removal (EBPR) to concentrate P in sludge followed by chemical precipitation of P as struvite, a usable phosphate mineral. The present study models the feasibility of this enhanced removal and recovery technique in a WWTP in Arizona with design parameters typical of infrastructure in the United States. A mass balance was performed for existing treatment processes and modifications proposed to estimate the quantity of P that could be recovered under current and future flow conditions. (continued)


      doi:10.2134/jeq2014.11.0504
      Published: March 27, 2015



  • SURFACE WATER QUALITY

    • T. Darch, A. Carswell, M. S. A. Blackwell, J. M. B. Hawkins, P. M. Haygarth and D. Chadwick
      Dissolved Phosphorus Retention in Buffer Strips: Influence of Slope and Soil Type

      Phosphorus (P) contributes to eutrophication of surface waters and buffer strips may be implemented to reduce its transfer from agricultural sources to watercourses. This study was conducted to test the hypothesis that soil type and slope influence the retention of dissolved organic P and inorganic orthophosphate in agricultural runoff in 2-m-wide buffer strip soils. A solution, comprised of dissolved orthophosphate and the organic P compounds glucose-1-phosphate, RNA, and inositol hexakisphosphate (1.8 mg L−1 total P) and a chloride tracer, was applied as simulated overland flow to grassland soil blocks (2 m long × 0.5 m wide × 0.35 m deep), containing intact clay or loam soils, at slope angles of 2, 5, and 10°. Phosphorus forms were determined in the surface and subsurface flow from the soil blocks. (continued)


      doi:10.2134/jeq2014.10.0440
      Published: April 24, 2015



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