IDEAS home Printed from https://ideas.repec.org/a/gam/jlands/v13y2024i7p952-d1425091.html
   My bibliography  Save this article

Characteristics of an Inorganic Carbon Sink Influenced by Agricultural Activities in the Karst Peak Cluster Depression of Southern China (Guancun)

Author

Listed:
  • Ning Zhang

    (Key Laboratory of Karst Dynamics, Ministry of Natural Resources & Guangxi, International Research Center on Karst under the Auspices of UNESCO, National Center for International Research on Karst Dynamic System and Global Change, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China)

  • Qiong Xiao

    (Key Laboratory of Karst Dynamics, Ministry of Natural Resources & Guangxi, International Research Center on Karst under the Auspices of UNESCO, National Center for International Research on Karst Dynamic System and Global Change, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
    Karst Ecosystem, National Observation and Research Station, Pingguo 531406, China)

  • Yongli Guo

    (Key Laboratory of Karst Dynamics, Ministry of Natural Resources & Guangxi, International Research Center on Karst under the Auspices of UNESCO, National Center for International Research on Karst Dynamic System and Global Change, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
    Karst Ecosystem, National Observation and Research Station, Pingguo 531406, China)

  • Pingan Sun

    (Key Laboratory of Karst Dynamics, Ministry of Natural Resources & Guangxi, International Research Center on Karst under the Auspices of UNESCO, National Center for International Research on Karst Dynamic System and Global Change, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
    Karst Ecosystem, National Observation and Research Station, Pingguo 531406, China)

  • Ying Miao

    (Key Laboratory of Karst Dynamics, Ministry of Natural Resources & Guangxi, International Research Center on Karst under the Auspices of UNESCO, National Center for International Research on Karst Dynamic System and Global Change, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
    Karst Ecosystem, National Observation and Research Station, Pingguo 531406, China)

  • Fajia Chen

    (Key Laboratory of Karst Dynamics, Ministry of Natural Resources & Guangxi, International Research Center on Karst under the Auspices of UNESCO, National Center for International Research on Karst Dynamic System and Global Change, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
    Karst Ecosystem, National Observation and Research Station, Pingguo 531406, China)

  • Cheng Zhang

    (Key Laboratory of Karst Dynamics, Ministry of Natural Resources & Guangxi, International Research Center on Karst under the Auspices of UNESCO, National Center for International Research on Karst Dynamic System and Global Change, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
    Karst Ecosystem, National Observation and Research Station, Pingguo 531406, China)

Abstract

Land use in karst areas affects soil properties, impacting carbon sinks. Accurate estimation of carbon sink flux in karst areas through zoning and classification is crucial for understanding global carbon cycling and climate change. The peak cluster depression is the largest continuous karst landform region in southern China, with the depressions primarily covered by farmland and influenced by agricultural activities. This study focused on the Guancun Underground River Basin, a typical peak cluster depression basin, where sampling and analysis were conducted during the agricultural period of 2021–2022. Using hydrochemical analysis and isotopic methods, the results indicated that: (1) The primary hydrochemical type in the Guancun Underground River Basin is HCO 3 -Ca, with hydrochemical composition mainly controlled by carbonate rock weathering. (2) The primary sources of Cl − , SO 4 2− , and NO 3 − are agricultural activities, with agriculture contributing 0.68 mmol/L to dissolved inorganic carbon (DIC), accounting for about 13.86%, as confirmed by ion concentration analysis and isotope verification. (3) The size of the depression area is proportional to the contribution of agricultural activities to DIC, while also being influenced by dilution effects. A comparison was made regarding the contribution of other land use types to DIC. The impact of land use on DIC in karst processes should not be overlooked, and zoning and classification assessments of carbon sink flux under different influencing factors contribute to carbon peaking and carbon neutrality goals.

Suggested Citation

  • Ning Zhang & Qiong Xiao & Yongli Guo & Pingan Sun & Ying Miao & Fajia Chen & Cheng Zhang, 2024. "Characteristics of an Inorganic Carbon Sink Influenced by Agricultural Activities in the Karst Peak Cluster Depression of Southern China (Guancun)," Land, MDPI, vol. 13(7), pages 1-20, June.
  • Handle: RePEc:gam:jlands:v:13:y:2024:i:7:p:952-:d:1425091
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2073-445X/13/7/952/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/2073-445X/13/7/952/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Peter A. Raymond & Neung-Hwan Oh & R. Eugene Turner & Whitney Broussard, 2008. "Anthropogenically enhanced fluxes of water and carbon from the Mississippi River," Nature, Nature, vol. 451(7177), pages 449-452, January.
    2. Xiaodie Liu & Xiangqian Wang & Xiangrui Meng, 2023. "Carbon Emission Scenario Prediction and Peak Path Selection in China," Energies, MDPI, vol. 16(5), pages 1-17, 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. Lyu Jun & Shuang Lu & Xiang Li & Zeng Li & Chenglong Cao, 2023. "Spatio-Temporal Characteristics of Industrial Carbon Emission Efficiency and Their Impacts from Digital Economy at Chinese Prefecture-Level Cities," Sustainability, MDPI, vol. 15(18), pages 1-17, September.
    2. Kun Liu & Binrong Zhou & Zijie Yang & Yusheng Zhang & Dianyuan Ding, 2024. "Carbon Footprint Quantification and Reduction Potential of Ecological Revetment in Water Net Region of China: Case Study in Yancheng, Jiangsu Province," Sustainability, MDPI, vol. 16(16), pages 1-20, August.
    3. Nathan C. Healey & Jennifer A. Rover, 2022. "Analyzing the Effects of Land Cover Change on the Water Balance for Case Study Watersheds in Different Forested Ecosystems in the USA," Land, MDPI, vol. 11(2), pages 1-43, February.
    4. Zhongfa Zhou & Jie Kong & Fuqiang Zhang & Yan Zou & Jiangting Xie & Chaocheng Wen, 2023. "Study on the Carbon and Nitrogen Isotope Characteristics and Sources and Their Influence on Carbon Sinks in Karst Reservoirs," Land, MDPI, vol. 12(2), pages 1-16, February.
    5. Oleg A. Kolenchukov & Kirill A. Bashmur & Sergei O. Kurashkin & Elena V. Tsygankova & Natalia A. Shepeta & Roman B. Sergienko & Praskovya L. Pavlova & Roman A. Vaganov, 2023. "Numerical and Experimental Study of Heat Transfer in Pyrolysis Reactor Heat Exchange Channels with Different Hemispherical Protrusion Geometries," Energies, MDPI, vol. 16(16), pages 1-27, August.
    6. Ankur Srivastava & Nikul Kumari & Minotshing Maza, 2020. "Hydrological Response to Agricultural Land Use Heterogeneity Using Variable Infiltration Capacity Model," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 34(12), pages 3779-3794, September.
    7. Jones, Christopher S. & Schilling, Keith E. & Seeman, Anthony, 2019. "Relating carbon and nitrogen transport from constructed farm drainage," Agricultural Water Management, Elsevier, vol. 213(C), pages 12-23.
    8. Chaonan Han & Hao Wu & Ningning Sun & Yu Tang & Yan Dai & Tianhao Dai, 2022. "Differences in Carbon and Nitrogen Migration and Transformation Driven by Cyanobacteria and Macrophyte Activities in Taihu Lake," IJERPH, MDPI, vol. 20(1), pages 1-14, December.
    9. Weijia Li & Yuejiao Wang, 2023. "Optimization of Urban Road Green Belts under the Background of Carbon Peak Policy," Sustainability, MDPI, vol. 15(17), pages 1-17, August.
    10. Meixiu Yu & Qiongfang Li & Xiaolong Liu & Jianyun Zhang, 2016. "Quantifying the effect on flood regime of land-use pattern changes via hydrological simulation in the upper Huaihe River basin, China," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 84(3), pages 2279-2297, December.

    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:jlands:v:13:y:2024:i:7:p:952-:d:1425091. 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.