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Soil Structure Stability under Different Land Uses in Association with Polyacrylamide Effects

Author

Listed:
  • Amrakh I. Mamedov

    (Arid Land Research Center, Faculty of Agriculture, Tottori University, Tottori 668-0001, Japan)

  • Atsushi Tsunekawa

    (Arid Land Research Center, Faculty of Agriculture, Tottori University, Tottori 668-0001, Japan)

  • Nigussie Haregeweyn

    (International Platform for Dryland Research and Education, Tottori University, Tottori 668-0001, Japan)

  • Mitsuru Tsubo

    (Arid Land Research Center, Faculty of Agriculture, Tottori University, Tottori 668-0001, Japan)

  • Haruyuki Fujimaki

    (Arid Land Research Center, Faculty of Agriculture, Tottori University, Tottori 668-0001, Japan)

  • Takayuki Kawai

    (Arid Land Research Center, Faculty of Agriculture, Tottori University, Tottori 668-0001, Japan)

  • Birhanu Kebede

    (The United Graduate School of Agricultural Sciences, Tottori University, Tottori 680-8553, Japan)

  • Temesgen Mulualem

    (College of Agriculture & Environmental Sciences, Bahir Dar University, Bahir Dar P.O. Box 1289, Ethiopia)

  • Getu Abebe

    (The United Graduate School of Agricultural Sciences, Tottori University, Tottori 680-8553, Japan)

  • Anteneh Wubet

    (College of Agriculture & Environmental Sciences, Bahir Dar University, Bahir Dar P.O. Box 1289, Ethiopia)

  • Guy J. Levy

    (Institute of Soil, Water and Environmental Sciences, ARO, Rishon LeZion 7505101, Israel)

Abstract

Soil structural stability is a vital aspect of soil quality and functions, and of maintaining sustainable land management. The objective of this study was to compare the contribution of four long-term land-use systems (crop, bush, grass, and forest) coupled with anionic polyacrylamide (PAM = 0, 25, and 200 mg L −1 ) application on the structural stability of soils in three watersheds of Ethiopia varying in elevation. Effect of treatments on soil structural stability indices were assessed using the high energy moisture characteristic (HEMC, 0–50 hPa) method, which provides (i) water retention model parameters α and n , and (ii) soil structure index (SI). Soil (watershed), land use and PAM treatments had significant effects on the shape of the water retention curves (α, n ) and SI, with diverse changes in the macropore sizes (60–250; >250 μm). Soil organic carbon (SOC) content and SI were strongly related to soil pH, CaCO 3 soil type-clay mineralogy, exchangeable Ca 2+ , and Na + (negatively). The order of soil SI (0.013–0.064 hPa −1 ) and SOC (1.4–8.1%) by land use was similar (forest > grass > bush > cropland). PAM effect on increasing soil SI (1.2–2.0 times), was inversely related to SOC content, being also pronounced in soils from watersheds of low (Vertisol) and medium (Luvisol) elevation, and the cropland soil from high (Acrisol) elevation. Treating cropland soils with a high PAM rate yielded greater SI (0.028–0.042 hPa −1 ) than untreated bush- and grassland soils (0.021–0.033 hPa −1 ). For sustainable management and faster improvement in soil physical quality, soil properties, and land-use history should be considered together with PAM application.

Suggested Citation

  • Amrakh I. Mamedov & Atsushi Tsunekawa & Nigussie Haregeweyn & Mitsuru Tsubo & Haruyuki Fujimaki & Takayuki Kawai & Birhanu Kebede & Temesgen Mulualem & Getu Abebe & Anteneh Wubet & Guy J. Levy, 2021. "Soil Structure Stability under Different Land Uses in Association with Polyacrylamide Effects," Sustainability, MDPI, vol. 13(3), pages 1-17, January.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:3:p:1407-:d:489373
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    References listed on IDEAS

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    1. Getu Abebe & Atsushi Tsunekawa & Nigussie Haregeweyn & Taniguchi Takeshi & Menale Wondie & Enyew Adgo & Tsugiyuki Masunaga & Mitsuru Tsubo & Kindiye Ebabu & Mulatu Liyew Berihun & Asaminew Tassew, 2020. "Effects of Land Use and Topographic Position on Soil Organic Carbon and Total Nitrogen Stocks in Different Agro-Ecosystems of the Upper Blue Nile Basin," Sustainability, MDPI, vol. 12(6), pages 1-18, March.
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    Cited by:

    1. Elton Mammadov & Michael Denk & Amrakh I. Mamedov & Cornelia Glaesser, 2024. "Predicting Soil Properties for Agricultural Land in the Caucasus Mountains Using Mid-Infrared Spectroscopy," Land, MDPI, vol. 13(2), pages 1-25, January.
    2. Elton Mammadov & Michael Denk & Frank Riedel & Cezary Kaźmierowski & Karolina Lewinska & Remigiusz Łukowiak & Witold Grzebisz & Amrakh I. Mamedov & Cornelia Glaesser, 2022. "Determination of Mehlich 3 Extractable Elements with Visible and Near Infrared Spectroscopy in a Mountainous Agricultural Land, the Caucasus Mountains," Land, MDPI, vol. 11(3), pages 1-24, March.
    3. Yingcan Zhu & Aram Ali & John McLean Bennett & Chris Guppy & David McKenzie, 2022. "Targeting Subsoil Constraints in Southern Queensland: Concept Proof of Spraying Polyacrylamide for Subsoil Stabilisation during Tillage," Sustainability, MDPI, vol. 14(20), pages 1-16, October.

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