IDEAS home Printed from https://ideas.repec.org/a/gam/jijerp/v20y2023i4p3761-d1074859.html
   My bibliography  Save this article

Unveiling the Role of Dissolved Organic Matter on the Hg Phytoavailability in Biochar-Amended Soils

Author

Listed:
  • Wenhao Chen

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
    These authors contributed equally to this work.)

  • Zhigang Yu

    (Australian Centre for Water and Environmental Biotechnology (Formerly AWMC), The University of Queensland, Brisbane, QLD 4072, Australia
    These authors contributed equally to this work.)

  • Xu Yang

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China)

  • Tantan Wang

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China)

  • Zihao Li

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China)

  • Xin Wen

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China)

  • Yubo He

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China)

  • Chang Zhang

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China)

Abstract

Biochar can effectively reduce the phytoavailability of mercury (Hg) in soil, but the mechanisms are not fully understood. In this study, the dynamic changes in Hg content adsorbed by the biochar (BC-Hg), Hg phytoavailability in the soil (P-Hg), and soil dissolved organic matter (DOM) characteristics were determined over a 60-day treatment period. Biochar obtained at 300 °C, 500 °C and 700 °C reduced the P-Hg concentration assessed by MgCl 2 extraction by 9.4%, 23.5% and 32.7%, respectively. However, biochar showed a very limited adsorption on Hg, with the maximum BC-Hg content only accounting for 1.1% of the total amount. High-resolution scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM-EDS) results showed that the proportion of Hg atoms in biochar after 60 d was barely detectable. Biochar treatment can shift soil DOM toward higher aromatic content and molecular weight. Additionally, the addition of high-temperature biochar increased more humus-like components, but low-temperature biochar increased more protein-like components. Correlation analysis and partial least squares path modeling (PLS-PM) showed that biochar promoted humus-like fractions formation to reduce the Hg phytoavailability. This research has deepened the understanding of the mechanisms by which biochar stabilizes Hg in agricultural soils.

Suggested Citation

  • Wenhao Chen & Zhigang Yu & Xu Yang & Tantan Wang & Zihao Li & Xin Wen & Yubo He & Chang Zhang, 2023. "Unveiling the Role of Dissolved Organic Matter on the Hg Phytoavailability in Biochar-Amended Soils," IJERPH, MDPI, vol. 20(4), pages 1-17, February.
    • Handle: RePEc:gam:jijerp:v:20:y:2023:i:4:p:3761-:d:1074859
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1660-4601/20/4/3761/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1660-4601/20/4/3761/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Johannes Lehmann, 2007. "A handful of carbon," Nature, Nature, vol. 447(7141), pages 143-144, May.
    2. Shanqian Wang & Taiyang Zhong & Dongmei Chen & Xiuying Zhang, 2016. "Spatial Distribution of Mercury (Hg) Concentration in Agricultural Soil and Its Risk Assessment on Food Safety in China," Sustainability, MDPI, vol. 8(8), pages 1-12, August.
    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. Lychuk, Taras E. & Hill, Robert L. & Izaurralde, Roberto C. & Momen, Bahram & Thomson, Allison M., 2021. "Evaluation of climate change impacts and effectiveness of adaptation options on nitrate loss, microbial respiration, and soil organic carbon in the Southeastern USA," Agricultural Systems, Elsevier, vol. 193(C).
    2. Kanbur, Ravi & Bento, Antonio M. & Leard, Benjamin, 2012. "SUPER-ADDITIONALITY: A Neglected Force in Markets for Carbon Offsets," Working Papers 128811, Cornell University, Department of Applied Economics and Management.
    3. Huang, Yawen & Tao, Bo & Lal, Rattan & Lorenz, Klaus & Jacinthe, Pierre-Andre & Shrestha, Raj K. & Bai, Xiongxiong & Singh, Maninder P. & Lindsey, Laura E. & Ren, Wei, 2023. "A global synthesis of biochar's sustainability in climate-smart agriculture - Evidence from field and laboratory experiments," Renewable and Sustainable Energy Reviews, Elsevier, vol. 172(C).
    4. Thakkar, Jignesh & Kumar, Amit & Ghatora, Sonia & Canter, Christina, 2016. "Energy balance and greenhouse gas emissions from the production and sequestration of charcoal from agricultural residues," Renewable Energy, Elsevier, vol. 94(C), pages 558-567.
    5. Zhang, Zhikun & Zhu, Zongyuan & Shen, Boxiong & Liu, Lina, 2019. "Insights into biochar and hydrochar production and applications: A review," Energy, Elsevier, vol. 171(C), pages 581-598.
    6. Qin, Fanzhi & Zhang, Chen & Zeng, Guangming & Huang, Danlian & Tan, Xiaofei & Duan, Abing, 2022. "Lignocellulosic biomass carbonization for biochar production and characterization of biochar reactivity," Renewable and Sustainable Energy Reviews, Elsevier, vol. 157(C).
    7. Kung, Chih-Chun & McCarl, Bruce A. & Cao, Xiaoyong, 2013. "Economics of pyrolysis-based energy production and biochar utilization: A case study in Taiwan," Energy Policy, Elsevier, vol. 60(C), pages 317-323.
    8. Jayanta Layek & Rumi Narzari & Samarendra Hazarika & Anup Das & Krishnappa Rangappa & Shidayaichenbi Devi & Arumugam Balusamy & Saurav Saha & Sandip Mandal & Ramkrushna Gandhiji Idapuganti & Subhash B, 2022. "Prospects of Biochar for Sustainable Agriculture and Carbon Sequestration: An Overview for Eastern Himalayas," Sustainability, MDPI, vol. 14(11), pages 1-19, May.
    9. Ahmad Numery Ashfaqul Haque & Md. Kamal Uddin & Muhammad Firdaus Sulaiman & Adibah Mohd Amin & Mahmud Hossain & Syaharudin Zaibon & Mehnaz Mosharrof, 2021. "Assessing the Increase in Soil Moisture Storage Capacity and Nutrient Enhancement of Different Organic Amendments in Paddy Soil," Agriculture, MDPI, vol. 11(1), pages 1-15, January.
    10. Faubert, Patrick & Barnabé, Simon & Bouchard, Sylvie & Côté, Richard & Villeneuve, Claude, 2016. "Pulp and paper mill sludge management practices: What are the challenges to assess the impacts on greenhouse gas emissions?," Resources, Conservation & Recycling, Elsevier, vol. 108(C), pages 107-133.
    11. Ahmad Numery Ashfaqul Haque & Md. Kamal Uddin & Muhammad Firdaus Sulaiman & Adibah Mohd Amin & Mahmud Hossain & Zakaria M. Solaiman & Azharuddin Abd Aziz & Mehnaz Mosharrof, 2022. "Combined Use of Biochar with 15 Nitrogen Labelled Urea Increases Rice Yield, N Use Efficiency and Fertilizer N Recovery under Water-Saving Irrigation," Sustainability, MDPI, vol. 14(13), pages 1-21, June.
    12. Zouhair Elkhlifi & Jerosha Iftikhar & Mohammad Sarraf & Baber Ali & Muhammad Hamzah Saleem & Irshad Ibranshahib & Mozart Daltro Bispo & Lucas Meili & Sezai Ercisli & Ehlinaz Torun Kayabasi & Naser Ale, 2023. "Potential Role of Biochar on Capturing Soil Nutrients, Carbon Sequestration and Managing Environmental Challenges: A Review," Sustainability, MDPI, vol. 15(3), pages 1-18, January.
    13. Karolina Barčauskaitė & Olga Anne & Ieva Mockevičienė & Regina Repšienė & Gintaras Šiaudinis & Danutė Karčauskienė, 2023. "Determination of Heavy Metals Immobilization by Chemical Fractions in Contaminated Soil Amended with Biochar," Sustainability, MDPI, vol. 15(11), pages 1-15, May.
    14. Mathews, John A., 2008. "Carbon-negative biofuels," Energy Policy, Elsevier, vol. 36(3), pages 940-945, March.
    15. Savvas L. Douvartzides & Nikolaos D. Charisiou & Kyriakos N. Papageridis & Maria A. Goula, 2019. "Green Diesel: Biomass Feedstocks, Production Technologies, Catalytic Research, Fuel Properties and Performance in Compression Ignition Internal Combustion Engines," Energies, MDPI, vol. 12(5), pages 1-41, February.
    16. Sriphirom, Patikorn & Rossopa, Benjamas, 2023. "Assessment of greenhouse gas mitigation from rice cultivation using alternate wetting and drying and rice straw biochar in Thailand," Agricultural Water Management, Elsevier, vol. 290(C).
    17. Feng, Qunjie & Lin, Yunqin, 2017. "Integrated processes of anaerobic digestion and pyrolysis for higher bioenergy recovery from lignocellulosic biomass: A brief review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 77(C), pages 1272-1287.
    18. Ascher, Simon & Watson, Ian & You, Siming, 2022. "Machine learning methods for modelling the gasification and pyrolysis of biomass and waste," Renewable and Sustainable Energy Reviews, Elsevier, vol. 155(C).
    19. Chen, Yang & Wang, Lu & Tong, Ling & Hao, Xinmei & Wu, Xuanyi & Ding, Risheng & Kang, Shaozhong & Li, Sien, 2023. "Effects of biochar addition and deficit irrigation with brackish water on yield-scaled N2O emissions under drip irrigation with mulching," Agricultural Water Management, Elsevier, vol. 277(C).
    20. Chih-Chun Kung & Meng-Shiuh Chang, 2015. "Effect of Agricultural Feedstock to Energy Conversion Rate on Bioenergy and GHG Emissions," Sustainability, MDPI, vol. 7(5), pages 1-15, May.

    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:jijerp:v:20:y:2023:i:4:p:3761-:d:1074859. 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.