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Soil Science Society of America Journal : Just Published

 

Accepted, edited articles are published here after author proofing to provide rapid publication and better access to the newest soil science research. Articles are compiled into bimonthly issues at www.soils.org/publications/sssaj, which includes the complete archive. Citation | Articles posted here are considered published and may be cited by the doi.

Nouwakpo, S. K. and C.-H. Huang. 2012. A Fluidized Bed Technique for Estimating Soil Critical Shear Stress Soil Sci. Soc. Am. J. doi:10.2136/sssaj2012.0056

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Current issue: Soil Sci. Soc. Am. J. 79(2)



  • PEDOLOGY

    • Martin E. Brummell, Amanda Guy and Steven D. Siciliano
      Does Diapirism Influence Greenhouse Gas Production on Patterned Ground in the High Arctic?

      There are unusual patterns of greenhouse gas (GHG) net production in soil profiles of Arctic polar deserts. These deserts include frost boils that are symptomatic of permafrost-associated soils. Some frost boils contain diapirs, intrusions of recently thawed, carbon- and water-rich fine material pushed upward into the overlying active layer. Here we identified diapir-associated frost boils in an Arctic polar desert that we had previously found to have highly variable patterns of GHG net production, and compared patterns of GHG net production in soil profiles between diapir and non-diapir frost boils. (continued)


      doi:10.2136/sssaj2015.01.0026
      Published: March 27, 2015



  • SOIL & WATER MANAGEMENT & CONSERVATION

    • L. Wang and Z.H. Shi
      Size Selectivity of Eroded Sediment Associated with Soil Texture on Steep Slopes

      Sediment selectivity during transport may provide basic information for evaluating on-site and off-site impacts of soil erosion. Rainfall simulation experiments were performed to investigate the effects of soil texture and aggregation on sediment particle size distributions (PSDs) in rill and interrill erosion material. Four soils with decreasing clay content were selected and subjected to simulated rainfall with an intensity of 120 mm h−1 on three steep slopes (15, 20, and 25°). A comparison of the sediment effective PSD (undispersed) and ultimate PSD (dispersed) for the four soils revealed that clay-sized particles were prone to transport as aggregates. (continued)


      doi:10.2136/sssaj2014.10.0415
      Published: March 27, 2015



  • SOIL CHEMISTRY

    • Jessica G. Ernakovich, Matthew D. Wallenstein and F.J. Calderón
      Chemical Indicators of Cryoturbation and Microbial Processing throughout an Alaskan Permafrost Soil Depth Profile

      Although permafrost soils contain vast stores of organic C, relatively little is known about the chemical composition of their constituent soil organic matter (SOM). Mineral permafrost and organic (OAL) and mineral active layer (MAL) soils from Sagwon Hills, AK were analyzed for total C and N content and SOM chemical composition using Fourier transformed mid-infrared spectroscopy (MidIR). We also investigated techniques for proper collection of MidIR spectra on high C soils, such as permafrost. Principal Components Analysis (PCA) of the MidIR spectra revealed that the OAL was different from the MAL and permafrost based on absorbance of various organic functional groups, such as hydroxyls, alkyls, carbonyls, amines, amides, and esters. (continued)


      doi:10.2136/sssaj2014.10.0420
      Published: March 27, 2015



    • Ting-Ting Fan, Yu-Jun Wang, Cheng-Bao Li, Dong-Mei Zhou and Shmulik P. Friedman
      Effects of Soil Organic Matter on Sorption of Metal Ions on Soil Clay Particles

      Wien effect measurements were used to study the effect of organic matter on the interactions between divalent cations and soil clay particles of two black soil samples containing organic matter (OM) at 54.4 and 12.3 g kg−1 in the top (0–20-cm) and bottom (100–120-cm) horizons, respectively, and a sample of OM-free black soil, all saturated with Cd2+, Cu2+, Pb2+, and with Ca2+ as a reference cation. The weak-field electrical conductivities of suspensions of the top and bottom horizons and OM-free black soil samples were 0.021 to 0.033, 0.011 to 0.021, and 0.0065 to 0.0082 mS cm−1, respectively. The mean free binding energies of the cations in the same soil sample suspensions were 5.5 to 7.3, 7.3 to 9.3, and 9.6 to 10 kJ mol−1, respectively. The mean free adsorption energies of all cations increased with field strength and were in the order OM-free > bottom horizon > top horizon. (continued)


      doi:10.2136/sssaj2014.06.0245
      Published: March 20, 2015



    • Michael E. Essington and Kalyn A. Vergeer
      Adsorption of Antimonate, Phosphate, and Sulfate by Manganese Dioxide: Competitive Effects and Surface Complexation Modeling

      Antimony is a co-contaminant with Pb in shooting range soils. The in situ immobilization of Pb in these soils may be accomplished through the application of PO4. However, the impact of this treatment on the mobility and bioaccessibility of Sb is unknown. Further, the ability to predict Sb fate and behavior in contaminated soils, or as influenced by treatment technologies, has not been suitably developed. (continued)


      doi:10.2136/sssaj2014.12.0482
      Published: March 20, 2015



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