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Distribution Characteristics and Influencing Factors of Soil Biological Indicators in Typical Farmland Soils

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Listed:
  • Long Kang

    (School of Land Science and Technology, China University of Geosciences, Beijing 100083, China)

  • Rui Zhao

    (School of Land Science and Technology, China University of Geosciences, Beijing 100083, China)

  • Kening Wu

    (School of Land Science and Technology, China University of Geosciences, Beijing 100083, China
    Key Laboratory of Land Consolidation and Rehabilitation, Ministry of Natural Resources, Beijing 100035, China)

  • Zhe Feng

    (School of Land Science and Technology, China University of Geosciences, Beijing 100083, China)

  • Huafu Zhao

    (School of Land Science and Technology, China University of Geosciences, Beijing 100083, China
    Key Laboratory of Land Consolidation and Rehabilitation, Ministry of Natural Resources, Beijing 100035, China)

  • Sicheng Zhang

    (School of Land Science and Technology, China University of Geosciences, Beijing 100083, China)

Abstract

Soil biodiversity drives soil-based ecosystem services and is an important indicator of soil health. To understand the responses of important soil biological indicators to different farmland use contexts, 72 fields in three agricultural regions of China were used as research objects. The distribution characteristics and the factors influencing six indicators (carbon and nitrogen contents of soil microbial biomass (MBC, MBN, respectively), soil respiration (SR), soil catalase activity (CAT), soil acid phosphomonoesterase activity (APA), and soil earthworms) were investigated using field monitoring and indoor analysis. The MBC, SR, CAT, and APA indicators showed significant differences among the regions ( p < 0.05). Correlation and redundancy analyses indicated that the important factors affecting MBC, MBN, and soil respiration were cation exchange capacity, total N, organic matter, hydrolytic N, and soil bulk density, whereas the important factors affecting APA and earthworms were total phosphorus, available phosphorus, and available potassium. None of these factors had a significant effect on CAT. Climatic conditions, soil types, and farmland practices all have complex impacts on soil biodiversity. The results showed that attention should be paid to improving the physical conditions of the soil and to increasing soil fertility levels when establishing sustainable farm management patterns.

Suggested Citation

  • Long Kang & Rui Zhao & Kening Wu & Zhe Feng & Huafu Zhao & Sicheng Zhang, 2023. "Distribution Characteristics and Influencing Factors of Soil Biological Indicators in Typical Farmland Soils," Land, MDPI, vol. 12(4), pages 1-14, March.
    • Handle: RePEc:gam:jlands:v:12:y:2023:i:4:p:755-:d:1108571
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    References listed on IDEAS

    as
    1. Ye, Sijing & Song, Changqing & Shen, Shi & Gao, Peichao & Cheng, Changxiu & Cheng, Feng & Wan, Changjun & Zhu, Dehai, 2020. "Spatial pattern of arable land-use intensity in China," Land Use Policy, Elsevier, vol. 99(C).
    2. Li Ma & Ming’an Shao & Tongchuan Li, 2020. "Characteristics of Soil Moisture and Evaporation under the Activities of Earthworms in Typical Anthrosols in China," Sustainability, MDPI, vol. 12(16), pages 1-11, August.
    3. Carlos A. Guerra & Anna Heintz-Buschart & Johannes Sikorski & Antonis Chatzinotas & Nathaly Guerrero-Ramírez & Simone Cesarz & Léa Beaumelle & Matthias C. Rillig & Fernando T. Maestre & Manuel Delgado, 2020. "Blind spots in global soil biodiversity and ecosystem function research," Nature Communications, Nature, vol. 11(1), pages 1-13, December.
    4. Rui Zhao & Kening Wu, 2021. "Soil Health Evaluation of Farmland Based on Functional Soil Management—A Case Study of Yixing City, Jiangsu Province, China," Agriculture, MDPI, vol. 11(7), pages 1-27, June.
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