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Volume 81 Issue 4, July-August 2017



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  • REVIEW & ANALYSIS–SOIL PHYSICS & HYDROLOGY up

    • Humberto Blanco-Canqui
      Biochar and Soil Physical Properties
      Core Ideas
      • Biochar generally improves the soil physical environment
      • Sandy soils appear to respond more to biochar than clayey soils
      • Long-term studies are needed to conclusively discern the extent of biochar effects
      doi:10.2136/sssaj2017.01.0017
      Soil Science Society of America Journal 2017 81:687-711
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  • SOIL PHYSICS & HYDROLOGY up

    • Mingrui Yuan, Zhi Ping Xu, Tuan Nguyen, Thomas Baumgartl and Longbin Huang
      Interaction of Humic Acid with Cu/Pb-Zn Tailings of Different Degrees of Weathering
      Core Ideas
      • Cu-Pb-Zn tailings have different humic acid adsorption capacity.
      • Fresh tailings contain more Fe/Al-oxyhydroxides and adsorbed more humic acids.
      • Carboxylic and phenolic groups of HA preferentially interacted with mineral particles in tailings.
      • Acidic pH conditions favor humic acid adsorption in the tailings.
      doi:10.2136/sssaj2016.04.0110
      Soil Science Society of America Journal 2017 81:712-722
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    • Xiufu Shuai, Timothy R. Green and Sally Logsdon
      Improved Theory of Time Domain Reflectometry with Variable Coaxial Cable Length for Electrical Conductivity Measurements
      Core Ideas
      • A new multisection transmission line model estimates soil bulk electrical conductivity.
      • The new model depends on known impedances and lengths of TDR instrument components.
      • Cable effects were corrected with lab measured steady-state reflection coefficients.
      • The model can be applied without fitting any empirical parameters.
      doi:10.2136/sssaj2016.09.0297
      Soil Science Society of America Journal 2017 81:723-733
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    • Chi Xu, Wenzhi Zeng, Hongya Zhang, Jiesheng Huang, Yonggen Zhang, Jingwei Wu and Marcel G. Schaap
      Inversion of Root Zone Soil Hydraulic Parameters with Limited Calibration Data
      Core Ideas
      • A new model inversion strategy for limited data was proposed and evaluated.
      • The method is robust and can easily be interfaced with other vadose zone models.
      • Parameter sensitivity to uncertainties in the root water uptake mechanism was evaluated.
      doi:10.2136/sssaj2016.09.0308
      Soil Science Society of America Journal 2017 81:734-746
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    • Colin P.R. McCarter, Scott Ketcheson, Tobias K.D. Weber, Peter Whittington, Sarah Scarlett and Jonathan Price
      Modified Technique for Measuring Unsaturated Hydraulic Conductivity in Sphagnum Moss and Peat
      Core Ideas
      • Determining unsaturated hydraulic conductivity in highly compressible porous media.
      • Method comparison between uniform and non-uniform soil water pressure gradients.
      • Hydrophysical parameter measurement in living and undecomposed Sphagnum moss.
      • Update on Price et al 2008 (DOI: 10.2136/sssaj2007.0111N) and improvements to method.
      doi:10.2136/sssaj2017.01.0006
      Soil Science Society of America Journal 2017 81:747-757
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    • Cecilie Hermansen, Maria Knadel, Per Moldrup, Mogens H. Greve, Dan Karup and Lis W. de Jonge
      Complete Soil Texture is Accurately Predicted by Visible Near-Infrared Spectroscopy
      Core Ideas
      • Two PSC models are fitted to detailed measurements of clay, silt, and sand fractions.
      • Both models well describe the PSCs of a broad soil data base.
      • Within and between field variations in PSC and OM are well predicted by vis-NIRS.
      • The Fredlund model performs slightly better in data-fitting and vis-NIRS predicted PSCs.
      • New vis-NIRS concept enables soil type classification in any texture system worldwide.
      doi:10.2136/sssaj2017.02.0066
      Soil Science Society of America Journal 2017 81:758-769
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  • SOIL PHYSICS & HYDROLOGY NOTES up

    • T. Laemmel, M. Mohr, H. Schack-Kirchner, D. Schindler and M. Maier
      Direct Observation of Wind-Induced Pressure-Pumping on Gas Transport in Soil
      Core Ideas
      • We directly observed the effect of wind-induced pressure-pumping on gas transport in soil.
      • Mean above-canopy wind speeds >3 m s−1 increase the soil gas transport rate by about 10%.
      • We generally recommend considering the pressure-pumping effect in gas flux measurements.
      doi:10.2136/sssaj2017.01.0034n
      Soil Science Society of America Journal 2017 81:770-774
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  • SOIL CHEMISTRY up

    • Meysam Rahbari, Mehran Kianirad, Seyed Mohammad Heydarian and Seyed Saeed Mirdamadi
      Effects of pH and Fe(III) Concentrations in Xanthan Gum Treatments on Soil Penetrability Resistance
      Core Ideas
      • Soil penetration resistance is a technique for evaluating the effects of field management on soils.
      • Improving the soil penetration resistance with xanthan and Fe(III) proposed.
      • The highest soil penetration resistance was occurred at pH 9 and 10 mmol L−1 Fe(III).
      doi:10.2136/sssaj2016.11.0366
      Soil Science Society of America Journal 2017 81:775-780
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  • SOIL BIOLOGY & BIOCHEMISTRY up

    • H.P. Collins, P.A. Fay, E. Kimura, S. Fransen and A. Himes
      Intercropping with Switchgrass Improves Net Greenhouse Gas Balance in Hybrid Poplar Plantations on a Sand Soil
      Core Ideas
      • A critical issue in the production of biofuels has been the competition with food crops
      • Intercropping switchgrass and hybrid poplar was found to be a viable bioenergy production strategy
      • Intercropped biomass production offset increases in GHGs and GWP
      • N2O emissions factors averaged 1% of the applied N over the study
      doi:10.2136/sssaj2016.09.0294
      Soil Science Society of America Journal 2017 81:781-795
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    • Mary E. Stromberger, Ibrahem Abduelafez, Patrick Byrne, Marc Moragues Canela (deceased), Asma A. Elamari, Daniel K. Manter and Tiffany Weir
      Genotype-Specific Enrichment of 1-Aminocyclopropane-1-Carboxylic Acid Deaminase-Positive Bacteria in Winter Wheat Rhizospheres
      Core Ideas
      • • 1-Aminocyclopropane-1-carboxylic acid (ACC) deaminase-positive (ACC+) bacteria were studied in field soils planted to winter wheat.
      • • The relative abundance of ACC+ bacteria increased in wheat rhizospheres as soil water availability decreased.
      • • ACC+ bacterial abundance, composition, and deaminase activity were influenced by wheat genotype.
      • • The ability of ACC+ bacteria to promote drought resistance may be dependent on wheat genotype.
      doi:10.2136/sssaj2016.12.0437
      Soil Science Society of America Journal 2017 81:796-805
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  • SOIL FERTILITY & PLANT NUTRITION up

    • Chester E. Greub, Trenton L. Roberts, Nathan A. Slaton and Jason P. Kelley
      Early Season Nitrogen Fertilizer Recovery by Corn within a Furrow-Irrigated Production System
      Core Ideas
      • At-planting fertilizer-N recovery was influenced by rate and application method.
      • Large amounts of at-planting fertilizer-N was not recovered by the corn crop prior to the V6 growth stage.
      • At-planting fertilizer-N recovery efficiency ranged from 0.8 to 18.4% at the V6 growth stage.
      doi:10.2136/sssaj2016.08.0245
      Soil Science Society of America Journal 2017 81:806-813
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    • Yanlong Chen, Zhou Jia, Ke Liu, Xiaohong Tian, Song Wang, Shaoxia Wang, Xiushuang Li, Huili Zhao and Abdul Ghaffar Shar
      Response of Exogenous Zinc Availability and Transformation to Maize Straw as Affected by Soil Organic Matter
      Core Ideas
      • Calcination procedure reduces SOM while maintaining other properties in calcareous soil.
      • Exogenous Zn increases DTPA-Zn concentration, especially in calcareous soil with high SOM.
      • Straw amendment ephemerally reinforces the increase of soil Zn availability with adding Zn.
      • Fixation of exogenous Zn mainly produces calcite and montmorillonite in calcareous soil.
      doi:10.2136/sssaj2016.11.0374
      Soil Science Society of America Journal 2017 81:814-827
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    • Wayne R. Roper, Deanna L. Osmond, Joshua L. Heitman, Michael G. Wagger and S. Chris Reberg-Horton
      Soil Health Indicators Do Not Differentiate among Agronomic Management Systems in North Carolina Soils
      Core Ideas
      • Soil health metrics were not differentiated in long-term agronomic trials.
      • Soil health tests produced different results and were not consistent with management.
      • Soil health indicators should be tested in different agroecological regions.
      doi:10.2136/sssaj2016.12.0400
      Soil Science Society of America Journal 2017 81:828-843
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  • PEDOLOGY up

    • Somsubhra Chakraborty, David C. Weindorf, Camille A. Weindorf, Bhabani S. Das, Bin Li, Bogdan Duda, Sarah Pennington and Rebekah Ortiz
      Semiquantitative Evaluation of Secondary Carbonates via Portable X-ray Fluorescence Spectrometry
      Core Ideas
      • PXRF found differences in Ca content related to secondary carbonate development stage.
      • Strong correlation was found between intact aggregates and ground soil for Ca content.
      • Support vector classification successfully classified carbonate development stage.
      doi:10.2136/sssaj2017.01.0019
      Soil Science Society of America Journal 2017 81:844-852
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  • PEDOLOGY NOTES up

    • Anthony O’Geen, Mike Walkinshaw and Dylan Beaudette
      SoilWeb: A Multifaceted Interface to Soil Survey Information
      Core Ideas
      • SoilWeb has evolved into new soil data visualization tools.
      • SoilWeb tools are interactive maps that work with smartphones, tablets and desktops.
      doi:10.2136/sssaj2016.11.0386n
      Soil Science Society of America Journal 2017 81:853-862
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    • Daniel Hirmas and Daniel Giménez
      A Geometric Equation for Representing Morphological Field Information in Horizons with Compound Structure
      Core Ideas
      • An equation is proposed to combine properties of multiple peds into a single value.
      • Field descriptions of structure size, grade, and/or shape are inputs in the equation.
      • The equation can be applied to horizons with single, multiple, and compound peds.
      doi:10.2136/sssaj2016.12.0396n
      Soil Science Society of America Journal 2017 81:863-867
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  • SOIL & WATER MANAGEMENT & CONSERVATION up

    • Abdullah Alhameid, Mostafa Ibrahim, Sandeep Kumar, Peter Sexton and T.E. Schumacher
      Soil Organic Carbon Changes Impacted by Crop Rotational Diversity under No-Till Farming in South Dakota, USA
      Core Ideas
      • Diverse cropping with no-till systems were compared with less diverse cropping systems.
      • No-till system with 4-yr rotation improved soil organic carbon and soil physical properties.
      • Long-term application of 4-yr rotation under no-till system increased light fraction of carbon and nitrogen.
      doi:10.2136/sssaj2016.04.0121
      Soil Science Society of America Journal 2017 81:868-877
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    • Douglas Adams Weiler, Carlos Gustavo Tornquist, William Parton, Henrique Pereira dos Santos, Anderson Santi and Cimelio Bayer
      Crop Biomass, Soil Carbon, and Nitrous Oxide as Affected by Management and Climate: A DayCent Application in Brazil
      Core Ideas
      • DayCent was calibrated and validated using 30-yr-old experiments in southern Brazil.
      • We simulated current and alternative management practices to 2100 using IPCC scenarios A2 and B1.
      • Model predicted crop biomass increases from 5 to 65% depending on cropping system and scenario.
      • Climate change would lead to larger relative increases in soil N2O emissions from no-tillage (27% in B1 to 41% in A2).
      • N2O fluxes under no till would still be 25% lower than under tillage.
      doi:10.2136/sssaj2017.01.0024
      Soil Science Society of America Journal 2017 81:945-955
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      [ Supplement 1 ]
    • Saroop S. Sandhu and Sandeep Kumar
      Impact of Three Types of Biochar on the Hydrological Properties of Eroded and Depositional Landscape Positions
      Core Ideas
      • Biochar impacted soil physical properties.
      • Biochar improved soil water retention.
      • A lower rate of biochar was effective in improving water infiltration and water retention.
      doi:10.2136/sssaj2016.07.0230
      Soil Science Society of America Journal 2017 81:878-888
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      [ Supplement 1 ]
    • Jian Yu, J. G. Shi, Xin Ma, P. F. Dang, Y. L. Yan, Amrakh I. Mamedov, Isaac Shainberg and Guy J. Levy
      Superabsorbent Polymer Properties and Concentration Effects on Water Retention under Drying Conditions
      Core Ideas
      • SAP amount for optimal water absorption is influenced by soil properties, SAP type and concentration.
      • Soil–SAP mixtures had significantly greater water holding capacity compared with soil alone.
      • Improvement in water holding capacity increased with an increase in SAP concentration.
      • Improved retention is from reduced evaporation and from SAP absorption of water from soil during drying.
      • Efficiency of SAP application depended on soil type, SAP type, SAP concentration, and their interactions.
      doi:10.2136/sssaj2016.07.0231
      Soil Science Society of America Journal 2017 81:889-901
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    • Guoce Xu, Zhanbin Li, Peng Li, Tiegang Zhang, Enhao Chang, Feichao Wang, Wengang Yang, Yuting Cheng and Rongrong Li
      The Spatial Pattern and Temporal Stability of the Soil Water Content of Sloped Forestland on the Loess Plateau, China
      Core Ideas
      • We examined the temporal stability of soil water content (SWC) in forestland.
      • We studied the effect of roots on the temporal stability of SWC.
      • The factors acting on MRD and SDRD were studied separately.
      • We compared differences in temporal stability of SWC for a full year vs. the rainy season.
      • We studied whole-profile SWC temporal stability at small sampling intervals.Biochar improved soil water retention.
      • A lower rate of biochar was effective in improving water infiltration and water retention.
      doi:10.2136/sssaj2016.10.0331
      Soil Science Society of America Journal 2017 81:902-914
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    • Wang Shanshan, Liu Guijian, Yuan Zijiao and Da Chunnian
      Distribution, Origin, and Characteristics of n-Alkanes in Surface Soils from the Yellow River Delta Natural Reserve, China
      Core Ideas
      • This is the first and systematic study on n-alkanes in soils from the YRDNR.
      • The soils in the YRDNR have been contaminated by oil production.
      • The Chinese government should pay more attention to the protection of the YRDNR.
      doi:10.2136/sssaj2016.11.0362
      Soil Science Society of America Journal 2017 81:915-922
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    • Jason Kelley, Chad W. Higgins, Markus Pahlow and Jay Noller
      Mapping Soil Texture by Electromagnetic Induction: A Case for Regional Data Coordination
      Core Ideas
      • High-resolution soil texture maps can improve efficiencies in precision irrigation.
      • Noncontact EMI methods can generate high-resolution maps quickly and at low cost.
      • Mapping with EMI requires robust correlations between soil ECa and soil texture.
      • Accuracy of high-resolution maps may be reduced by nontarget soil characteristics.
      • Neural networks can predict soil properties accurately by combining measurements.
      doi:10.2136/sssaj2016.12.0432
      Soil Science Society of America Journal 2017 81:923-931
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    • Jane M.-F. Johnson, Jeffrey S. Strock, Nancy W. Barbour, Joel E. Tallaksen and Michael Reese
      Stover Harvest Impacts Soil and Hydrologic Properties on Three Minnesota Farms
      Core Ideas
      • Harvesting stover even at a low rate can reduces benefits realized from minimal tillage.
      • Stover harvest rate may accelerate erosion jeopardizing soil fertility.
      • Negative impacts from stover removal occur in a relatively short period of time
      doi:10.2136/sssaj2017.01.0007
      Soil Science Society of America Journal 2017 81:932-944
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  • FOREST, RANGE & WILDLAND SOILS up

    • Rachel E. Danielson, Megan L. McGinnis, Scott M. Holub and David D. Myrold
      Harvesting Douglas-fir Stands Shifts Soil Microbial Activity and Biogeochemical Cycling
      Core Ideas
      • Managed PNW forests show similar short-term post-harvest biogeochemical shifts.
      • Harvest is a better predictor of microbial activity than geographic location.
      • Microbial biomass increases post-harvest despite disturbance of C and N cycles.
      • Microbial community activity becomes more C-limited after harvest.
      doi:10.2136/sssaj2016.09.0303
      Soil Science Society of America Journal 2017 81:956-969
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      [ Supplement 1 ]
    • Christiana A. Dietzen, Eduardo R.G. Marques, Jason N. James, Rodolpho H.A. Bernardi, Scott M. Holub and Robert B. Harrison
      Response of Deep Soil Carbon Pools to Forest Management in a Highly Productive Andisol
      Core Ideas
      • Deep soils are rarely included in studies of management effects on soil carbon.
      • The majority of soil carbon at this site was stored in subsurface (>30 cm) horizons.
      • Forest management did not significantly affect total carbon pools to a depth of 3 m.
      • Control of competing vegetation increased carbon storage deep in the soil profile.
      doi:10.2136/sssaj2016.09.0305
      Soil Science Society of America Journal 2017 81:970-978
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  • NUTRIENT MANAGEMENT & SOIL & PLANT ANALYSIS up

    • Denis Curtin, Michael H. Beare, Kathryn Lehto, Craig Tregurtha, Weiwen Qiu, Rebekah Tregurtha and Michelle Peterson
      Rapid Assays to Predict Nitrogen Mineralization Capacity of Agricultural Soils
      Core Ideas
      • Mineralized soil N is an important source of N for crops, but difficult to predict.
      • A reliable, “laboratory-friendly” test for mineralizable N is not yet available.
      • Chemical and bioassays were assessed to identify a “quick-test” for mineralizable N.
      • Assays were evaluated against N mineralized in 14-week incubation (130 soils).
      • Best tests: hot water-extractable N or CO2 evolved after re-wetting air-dry soil.
      doi:10.2136/sssaj2016.08.0265
      Soil Science Society of America Journal 2017 81:979-991
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  • ERRATUM up

    • Sandra F. Yanni, H. Henry Janzen, Edward G. Gregorich, Ben H. Ellert, Francis J. Larney, Barry M. Olson and Francis Zvomuya
      Erratum: Organic Carbon Convergence in Diverse Soils toward Steady State: A 21-Year Field Bioassay
      doi:10.2136/sssaj2016.07.0214er
      Soil Science Society of America Journal 2017 81:992-992
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