IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v16y2024i18p7883-d1474851.html
   My bibliography  Save this article

Influence of Biomass Amendments on Soil CO 2 Concentration and Carbon Emission Flux in a Subtropical Karst Ecosystem

Author

Listed:
  • Zeyan Wu

    (Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
    Pingguo Guangxi, Karst Ecosystem, National Observation and Research Station, Pingguo 531406, China
    Pingguo Baise, Karst Ecosystem, Guangxi Observation and Research Station, Pingguo 531406, China
    Key Laboratory of Karst Dynamics, Ministry of Natural Resources & Guangxi, Guilin 541004, China)

  • Weiqun Luo

    (Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
    Pingguo Guangxi, Karst Ecosystem, National Observation and Research Station, Pingguo 531406, China
    Pingguo Baise, Karst Ecosystem, Guangxi Observation and Research Station, Pingguo 531406, China
    Key Laboratory of Karst Dynamics, Ministry of Natural Resources & Guangxi, Guilin 541004, China)

  • Zhongcheng Jiang

    (Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
    Pingguo Guangxi, Karst Ecosystem, National Observation and Research Station, Pingguo 531406, China
    Pingguo Baise, Karst Ecosystem, Guangxi Observation and Research Station, Pingguo 531406, China
    Key Laboratory of Karst Dynamics, Ministry of Natural Resources & Guangxi, Guilin 541004, China)

  • Zhaoxin Hu

    (Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
    Pingguo Guangxi, Karst Ecosystem, National Observation and Research Station, Pingguo 531406, China
    Pingguo Baise, Karst Ecosystem, Guangxi Observation and Research Station, Pingguo 531406, China
    Key Laboratory of Karst Dynamics, Ministry of Natural Resources & Guangxi, Guilin 541004, China)

Abstract

Soil in karst areas is rare and precious, and karst carbon sinks play an important role in the global carbon cycle. Therefore, the purpose of karst soil improvement is to improve soil productivity and a carbon sink effect. Biomass amendment experiments in this study included three schemes: filter mud (FM), filter mud + straw + biogas slurry (FSB), and filter mud + straw + cow manure (FSC). The characteristics of soil CO 2 production, transport, and the effect on soil respiration carbon emissions in two years were compared and analyzed. The results were as follows: 1. The rate, amount, and depth of CO 2 concentration were affected by the combinations with biogas slurry (easy to leach) or cow manure (difficult to decompose). 2. The diurnal variation curves of soil respiration in the FSB- and FSC-improved soils lagged behind those in the control soil for three hours. While the curves of FM-improved soil and the control soil were nearly the same. 3. Soil–air carbon emissions increased by 35.2 tCO 2 /(km 2 ·a −1 ) under the FM scheme, decreased by 212.9 tCO 2 /(km 2 ·a −1 ) under the FSB scheme, and increased by 279.5 tCO 2 /(km 2 ·a −1 ) under the FSC scheme. The results were related to weather CO 2 accumulation in the deep or surface layers under different schemes.

Suggested Citation

  • Zeyan Wu & Weiqun Luo & Zhongcheng Jiang & Zhaoxin Hu, 2024. "Influence of Biomass Amendments on Soil CO 2 Concentration and Carbon Emission Flux in a Subtropical Karst Ecosystem," Sustainability, MDPI, vol. 16(18), pages 1-12, September.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:18:p:7883-:d:1474851
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/16/18/7883/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2071-1050/16/18/7883/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Katarzyna B. Tokarska & Nathan P. Gillett, 2018. "Cumulative carbon emissions budgets consistent with 1.5 °C global warming," Nature Climate Change, Nature, vol. 8(4), pages 296-299, April.
    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. Yang Ou & Christopher Roney & Jameel Alsalam & Katherine Calvin & Jared Creason & Jae Edmonds & Allen A. Fawcett & Page Kyle & Kanishka Narayan & Patrick O’Rourke & Pralit Patel & Shaun Ragnauth & Ste, 2021. "Deep mitigation of CO2 and non-CO2 greenhouse gases toward 1.5 °C and 2 °C futures," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
    2. Xumin Zhang & Simin Qu & Jijie Shen & Yingbing Chen & Xiaoqiang Yang & Peng Jiang & Peng Shi, 2023. "Effect of Distinct Evaluation Objectives on Different Precipitation Downscaling Methods and the Corresponding Potential Impacts on Catchment Runoff Modelling," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 37(5), pages 1913-1930, March.
    3. Dhamu, Vikas & Mengqi, Xiao & Qureshi, M Fahed & Yin, Zhenyuan & Jana, Amiya K. & Linga, Praveen, 2024. "Evaluating CO2 hydrate kinetics in multi-layered sediments using experimental and machine learning approach: Applicable to CO2 sequestration," Energy, Elsevier, vol. 290(C).

    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:16:y:2024:i:18:p:7883-:d:1474851. 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.