IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v15y2023i14p11417-d1200492.html
   My bibliography  Save this article

Characteristics of Humic Acids in Drained Floodplain Soils in Temperate Climates: A Spectroscopic Study

Author

Listed:
  • Dorota Kawałko

    (Institute of Soil Science, Plant Nutrition and Environmental Protection, Wrocław University of Environmental and Life Sciences, Grunwaldzka 53, 50-357 Wrocław, Poland)

  • Elżbieta Jamroz

    (Institute of Soil Science, Plant Nutrition and Environmental Protection, Wrocław University of Environmental and Life Sciences, Grunwaldzka 53, 50-357 Wrocław, Poland)

  • Maria Jerzykiewicz

    (Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland)

  • Irmina Ćwieląg-Piasecka

    (Institute of Soil Science, Plant Nutrition and Environmental Protection, Wrocław University of Environmental and Life Sciences, Grunwaldzka 53, 50-357 Wrocław, Poland)

Abstract

This study aims to assess the characteristics of humic acids (HAs) in floodplain soils. HAs were isolated from the Fluvisols located out of the embankment in the riparian forest (unflooded riparian forest) and within the embankment (inter-embankment), in the area periodically flooded. HAs from these soils were examined for quantity, structure, and humification degree using extraction methods as well as elemental analysis, UV-Vis, FTIR, EPR, and 1 HNMR spectroscopies. In the soils after drainage, a significant decrease in HAs has been observed compared to the periodically flooded areas. Obtained results showed that organic matter from periodically flooded soils is more humified and contains HAs with a more aromatic, lignin-like structure compared to the humus matter from unflooded Fluvisols. Humic acids from periodically flooded soil contained a lower amount of C and H compared to those isolated from unflooded soils located out of the embankment, which resulted in a less aliphatic or more aromatic character of their molecules. A higher H/C ratio of HAs from the Fluvisols after drainage exhibits more condensed aromatic ring or substituted ring structures in the molecules. Soils with organic matter with a higher humification index contained HAs with lower radical concentration values in comparison to soils with less humified organic matter. Results obtained show that in flooded areas with periodically reductive conditions, humic acids do not lose as many -OCH 3 groups as in better oxidized soils and therefore exhibit a lignin-like aromatic structure. It has been proven that the formation and dynamics of HA transformation may vary due to the water regime in soils.

Suggested Citation

  • Dorota Kawałko & Elżbieta Jamroz & Maria Jerzykiewicz & Irmina Ćwieląg-Piasecka, 2023. "Characteristics of Humic Acids in Drained Floodplain Soils in Temperate Climates: A Spectroscopic Study," Sustainability, MDPI, vol. 15(14), pages 1-17, July.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:14:p:11417-:d:1200492
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/15/14/11417/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2071-1050/15/14/11417/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Andrzej Łachacz & Barbara Kalisz & Paweł Sowiński & Bożena Smreczak & Jacek Niedźwiecki, 2023. "Transformation of Organic Soils Due to Artificial Drainage and Agricultural Use in Poland," Agriculture, MDPI, vol. 13(3), pages 1-20, March.
    2. Dorota Kawałko & Anna Karczewska, 2023. "Profile Distributions of Potentially Toxic Metal(loid)s in Soils of the Middle Odra Floodplain (SW Poland)," IJERPH, MDPI, vol. 20(5), pages 1-14, February.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Jonas Volungevicius & Kristina Amaleviciute-Volunge, 2023. "A Conceptual Approach to the Histosols Profile Morphology as a Risk Indicator in Assessing the Sustainability of Their Use and Impact on Climate Change," Sustainability, MDPI, vol. 15(18), pages 1-14, September.
    2. Marcin Becher & Mirosław Kobierski & Krzysztof Pakuła & Dawid Jaremko, 2023. "Distribution of Mercury in Drained Peatlands as the Effect of Secondary Transformation of Soil Organic Matter," Agriculture, MDPI, vol. 13(5), pages 1-16, April.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jsusta:v:15:y:2023:i:14:p:11417-:d:1200492. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.