• Issue
    Volume 86, Issue 3
    May/June 2022


Free Access

Cover Image, Volume 86, Issue 3

  • First Published: 20 May 2022
Description unavailable

On the cover: Ashley Becker, Environment and Resources PhD student, traveled throughout southern and central Wisconsin collecting soil samples from paired pasture and row-crop sites for soil carbon analyses. See Becker et al., “Surface-soil carbon stocks greater under well-managed grazed pasture than row crops,” https://doi.org/10.1002/saj2.20388. Photo by Ashley E. Becker.


Cover crops and carbon sequestration: Lessons from U.S. studies

  • Pages: 501-519
  • First Published: 18 February 2022
Core Ideas

  • Cover crops increase soil C in only 29% of comparisons of cover crop vs. no cover crop.
  • Cover crops may not increase soil C if they produce <2 Mg ha−1 of biomass.
  • Cover crops increase soil C the most in low C soils (<1% C) and after 5 yr.
  • Early planting and late termination can boost biomass C input from cover crops.
  • Overall, cover crops may accumulate soil C only in one-third of cases based on U.S. studies.


Open Access

Time in a bottle: Use of soil archives for understanding long-term soil change

  • Pages: 520-527
  • First Published: 10 January 2022
Core Ideas

  • Archived soil samples facilitate an improved understanding of long-term soil change.
  • A literature review was conducted to compile metadata documenting soil archive use.
  • Since 1980, there has been an accelerating use of soil archives in research.
  • Research is primarily focused on soil organic matter change in agroecosystems.
  • Resources are needed to support soil archives, especially in developing countries.


Aggregate stability in rainfall-induced soil physical crusts on the Loess Plateau, Northwest China

  • Pages: 528-539
  • First Published: 18 February 2022
Core Ideas

  • Aggregate stability in rainfall-induced soil physical crusts was assessed.
  • Soil physical crusts conferred increased resistance to external erosive forces.
  • Aggregate stability in structural crust was lower than in sedimentary crust.
  • Aggregate stability index obtained by transition matrix method is feasible.


Long-term rice cultivation promoted microbial mineralization of organic P in a black soil

  • Pages: 540-551
  • First Published: 30 January 2022
Core Ideas

  • Long-term (35-yr) rice cultivation increased soil inorganic P and organic P pools.
  • Decrease of microbial biomass C/P ratio enhanced mineralization of Po.
  • Stronger interaction of the phoD-harboring bacteria was shown in 35-yr soil.
  • Streptomyces and Cupriavidus might be the main biomarkers affecting Po mineralization.

Variation of soil silicon fractions and bioavailability during centennial-scale evolution of ecosystem after glacier retreat

  • Pages: 552-565
  • First Published: 04 February 2022
Core Ideas

  • Plant-available Si decreased significantly with the time of glacier retreat.
  • Within the labile Si fractions, the largest fraction was Na2CO3–Si, followed by Oxalate–Si, Acetic–Si, and CaCl2–Si.
  • Amorphous Si was the main source of dissolved Si in soil.
  • Si can alleviate the biotic and abiotic stresses of plants, which may reduce soil erosion after glacier retreat.

Distribution and migration of polycyclic aromatic hydrocarbons in sediment and water of the Three Gorges Reservoir

  • Pages: 566-578
  • First Published: 22 February 2022
Core Ideas

  • The temporal distribution of PAHs in water and sediment fluctuated with water level.
  • The PAHs in sediment showed more sensitive response to the water level fluctuation than water.
  • PAHs in sediment showed a potential release risk under the effect of water level fluctuation.
  • There was moderate ecological risk of PAHs in sediment.
  • There was low to moderate ecological risk of PAHs in water.

Enriching organic carbon bioavailability can mitigate soil acidification induced by nitrogen fertilization in croplands through microbial nitrogen immobilization

  • Pages: 579-592
  • First Published: 04 March 2022
Core Ideas

  • Glucose stimulated microbial N immobilization for temporary storing fertilizer N in croplands.
  • Glucose inhibited soil nitrification and acidification through microbial N immobilization.
  • Intensifying microbial N immobilization had a buffering effect to regulate soil inorganic N supply.
  • Improving organic C availability has potential to mitigate soil acidification due to N fertilization.


Open Access

Heuristics-enhanced geospatial machine learning (SaaS) of an ancient Mediterranean environment

  • Pages: 604-611
  • First Published: 03 February 2022
Core Ideas

  • High-resolution spatial analysis gives deep soil insights about an ancient Mediterranean soil.
  • We discuss a new soil machine learning engineering prediction method and corresponding software platform.
  • Eliminating misconceptions about machine learning through sound statistics consolidates Atterberg values used to determine “ground movement” in the context of Australian (and international) standards.

Open Access

Carbon-sensitive pedotransfer functions for plant available water

Dianna K. Bagnall Cristine L. S. Morgan Michael Cope Gregory M. Bean Shannon Cappellazzi Kelsey Greub Daniel Liptzin Charlotte L. Norris Elizabeth Rieke Paul Tracy Ezra Aberle Amanda Ashworth Oscar Bañuelos Tavarez Andy Bary R. Louis Baumhardt Alberto Borbón Gracia Daniel Brainard Jameson Brennan Dolores Briones Reyes Darren Bruhjell Cameron Carlyle James Crawford Cody Creech Steven Culman William Deen Curtis Dell Justin Derner Thomas Ducey Sjoerd Willem Duiker Miles Dyck Benjamin Ellert Martin Entz Avelino Espinosa Solorio Steven J. Fonte Simon Fonteyne Ann-Marie Fortuna Jamie Foster Lisa Fultz Audrey V. Gamble Charles Geddes Deirdre Griffin-LaHue John Grove Stephen K. Hamilton Xiying Hao Z. D. Hayden Julie Howe James Ippolito Gregg Johnson Mark Kautz Newell Kitchen Sandeep Kumar Kirsten Kurtz Francis Larney Katie Lewis Matt Liebman Antonio Lopez Ramirez Stephen Machado Bijesh Maharjan Miguel Angel Martinez Gamiño William May Mitchel McClaran Marshall McDaniel Neville Millar Jeffrey P. Mitchell Philip A. Moore Amber Moore Manuel Mora Gutiérrez Kelly A. Nelson Emmanuel Omondi Shannon Osborne Leodegario Osorio Alcalá Philip Owens Eugenia M. Pena-Yewtukhiw Hanna Poffenbarger Brenda Ponce Lira Jennifer Reeve Timothy Reinbott Mark Reiter Edwin Ritchey Kraig L. Roozeboom Ichao Rui Amir Sadeghpour Upendra M. Sainju Gregg Sanford William Schillinger Robert R. Schindelbeck Meagan Schipanski Alan Schlegel Kate Scow Lucretia Sherrod Sudeep Sidhu Ernesto Solís Moya Mervin St. Luce Jeffrey Strock Andrew Suyker Virginia Sykes Haiying Tao Alberto Trujillo Campos Laura L. Van Eerd Nele Verhulst Tony John Vyn Yutao Wang Dexter Watts David Wright Tiequan Zhang Charles Wayne Honeycutt
  • Pages: 612-629
  • First Published: 23 February 2022
Core Ideas

  • New pedotransfer functions show organic C increases plant available water.
  • Noncalcareous soils show greater effects of organic C on plant available water.
  • Increase in plant available water from organic C is more than double previous estimates.
  • These pedotransfer functions can easily be used in hydrologic models.
  • A gap is bridged for modeling the effect of increased soil organic C on plant available water.

Quantification of physical soil crust thickness and its effects on runoff and sediment yield

  • Pages: 630-642
  • First Published: 20 February 2022
Core Ideas

  • An X-ray computed tomography-based method was used to quantify the thickness of physical soil crusts.
  • The average thicknesses of structural and depositional crusts were 1.16 and 1.46 mm, respectively.
  • Generally, thickness of structural crust increased and depositional crust decreased with slope gradient.
  • Physical soil crust had a nonnegligible contribution to runoff and sediment yield increment.

Open Access

Water repellency prediction in high-organic Greenlandic soils: Comparing vis–NIRS to pedotransfer functions

  • Pages: 643-657
  • First Published: 17 March 2022
Core Ideas

  • Soil water repellency (SWR) vs. w curves were measured for 143 South Greenlandic soil samples.
  • The area under the SWR–w curve and the critical w were determined.
  • PTFs based on basic soil properties predicted SWRarea and wnon accurately.
  • Rapid spectral measurements (vis–NIRS) predicted SWR indices with similar accuracy.
  • Variable selection within the vis–NIR spectrum (iPLS-R) improved vis–NIRS model performance.


soilphysics: A suite of tools to fit and compare water retention curves

  • Pages: 658-663
  • First Published: 28 February 2022
Core Ideas

  • A computational tool for fitting water retention curves is presented.
  • The tool is developed in shiny R environment.
  • Five water retention curves are available.
  • The interactive approaches can also serve as a didactic tool.
  • This tool is freely available in the R package soilphysics.


A Freundlich-type multi-component approach for modeling the sorption of nickel and phosphate in soil

  • Pages: 664-677
  • First Published: 19 February 2022
Core Ideas

  • Phosphate increased the sorption of Ni by Mahan soil, and vice versa.
  • Phosphate increased the rate of Ni sorption.
  • A Freundlich-type multi-component isotherm described sorption data well.
  • A Freundlich-type multi-component kinetic model described stirred-flow data well.
  • Both models described a range of experimental conditions with a single set of parameters.


Open Access

Evaluation of indirect and direct scoring methods to relate biochemical soil quality indicators to ecosystem services

  • Pages: 678-702
  • First Published: 31 December 2021
Core Ideas

  • Soil quality indicators (SQIs) are sometimes indirectly assessed using C as surrogate.
  • Ideally SQIs should be assessed directly against measures of ecosystem services (ESSs).
  • Indirectly assessed β-glucosidase can document responses to management.
  • Indirect assessment of permanganate oxidizable C using C may be inappropriate.
  • Large datasets are needed for direct covariate-based scaling of SQI–ESS functions.

Toxicity of antimony in 18 soils of China evaluated by soil dehydrogenase activity

  • Pages: 703-713
  • First Published: 20 February 2022
Core Ideas

  • Acidic soils adsorb Sb more easily than alkaline soils, and adsorption tends to be irreversible.
  • Water-soluble Sb is the main fraction that inhibits dehydrogenase activity.
  • Soil pH, total P, amorphous Fe, and clay content play a crucial role in Sb toxicity to dehydrogenase activity.
  • Dehydrogenase activity could be used as an index for Sb contamination in soils.


Open Access

Biosolids processing effect on sulfur plant availability

  • Pages: 714-727
  • First Published: 24 January 2022
Core Ideas

  • Biosolids processing method significantly affected S availability.
  • Biosolids C/S, Ca, and pH were correlated to biosolids S availability.
  • Gypsum dissolution, S mineralization, and S oxidation may be driving S availability.


Integration of pelleted biosolids with cover crops for improving soil properties

  • Pages: 728-741
  • First Published: 04 October 2021
Core Ideas

  • Using pelleted biosolids as a soil amendment increases soil total C.
  • The application of pelleted biosolids enhances soil fertility.
  • The integration of cover crop with pelleted biosolids improves soil physical properties.

Effects of traditional field retting of hemp on soil organic carbon and the soil microbial community

  • Pages: 742-757
  • First Published: 18 February 2022
Core Ideas

  • There is a need for contemporary agronomic information on hemp production.
  • Field retting of hemp promotes a soil microbial community with greater fungal abundance.
  • Field retting of hemp may mitigate harvest associated soil C losses.
  • Field retting may help maintain soil C levels when used with soil C building practices.
  • Field retting may be a more sustainable practice for separating hemp fibers from stalks.

Open Access

Surface-soil carbon stocks greater under well-managed grazed pasture than row crops

  • Pages: 758-768
  • First Published: 10 February 2022
Core Ideas

  • Well-managed pasture is more likely to build soil C than row crops.
  • Shorter rest periods weakly correlated with higher soil C stocks.
  • Soil C stocks, especially particulate organic matter C, increased with pasture age.

Open Access

In situ water infiltration: Influence of cover crops after growth termination

  • Pages: 769-780
  • First Published: 16 February 2022
Core Ideas

  • Cover crop reduced antecedent water content before and after termination.
  • Parlange and Green-Ampt models provided good fits for measured infiltration data.
  • Cover crop increased quasi-steady infiltration rate 2 mo after termination.
  • Cover crop increased in situ measured saturated hydraulic conductivity.
  • Cover crop management can improve water infiltration 2 mo after termination.

Gypsum and cereal rye cover crops affect soil chemistry: Trace metals and plant nutrients

  • Pages: 781-794
  • First Published: 23 February 2022
Core Ideas

  • Flue-gas desulfurization gypsum amendments do not increase extractability of trace metals in soil.
  • Flue-gas desulfurization gypsum increased S and decreased K, P, Mn, Na, and Cr in the 15-to-30-cm soil depth (p < .10).
  • Cereal rye as a cover crop decreased extractable P in both the 0-to-15- and 15-to-30-cm soil depths.

How soil carbon fractions relate to soil properties and crop yields in dryland cropping systems?

  • Pages: 795-809
  • First Published: 01 March 2022
Core Ideas

  • Carbon fractions were related to 62 soil properties and mean long-term dryland crop yields at two sites.
  • Carbon fractions were greater with no-till continuous cropping than till crop–fallow.
  • Nitrogen fertilization had no effect on C fractions.
  • Carbon mineralization was strongly related to most soil properties and crop yields than other C fractions.
  • Carbon mineralization can be used as a potential soil indicator in dryland cropping systems.


Slash pine growth and nitrogen leaching potential following fertilization and pinestraw removal

  • Pages: 810-830
  • First Published: 24 January 2022
Core Ideas

  • Four years of pinestraw removal did not affect slash pine growth regardless of fertilization.
  • No fertilization treatment enhanced pine growth due to high baseline fertility and selected June timing.
  • Highest PCU rate increased pine mortality but did not decrease any growth variable.
  • Soil solution NOx–N concentrations increased up to 200-fold with increasing N application rate.
  • PCU did not provide superior pine growth or consistently reduce leaching potential relative to urea.


Partial recovery of microbial function in restored coastal marshes of Oregon, USA

  • Pages: 831-846
  • First Published: 02 February 2022
Core Ideas

  • Diking and draining coastal marshes affects sediment microbial function and C storage.
  • Tidal restoration partially returned soil physical characteristics and C cycling metrics.
  • Current rates of sediment accretion suggest that this will take decades to millennia to fully recover.
  • Restoring elevation and historic tidal channels may expedite recovery of microbial functions.


SSSA Yearly Reports

  • Pages: 847-848
  • First Published: 17 March 2022

2021 SSSA Award Recipients

  • Pages: 859-864
  • First Published: 14 March 2022

2021 SSSA Fellows

  • Pages: 865-866
  • First Published: 17 March 2022


Open Access

SSSAJ 2021 Publisher's Report

  • Pages: 868-878
  • First Published: 08 April 2022