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Influence of Organic Amendments Based on Garden Waste for Microbial Community Growth in Coastal Saline Soil

Author

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  • Jingnan Li

    (School of Environmental and Mapping Engineering, Suzhou University, Suzhou 234000, China
    Tianjin College, University of Science & Technology Beijing, Tianjin 301830, China)

  • Haiyang Zhang

    (School of Environmental and Mapping Engineering, Suzhou University, Suzhou 234000, China)

  • Li Zheng

    (School of Environmental and Mapping Engineering, Suzhou University, Suzhou 234000, China)

Abstract

Garden waste compost (GWC) has been applied as an amendment to improve the desalination efficiency, nutrient availability and diversity of the microbial community in coastal saline soil. Understanding the response of the microbial community to garden waste compost application is of great significance in coastal ecological restoration. Four treatments were established: CK, nonamended control; T1, application of 68 kg·m −3 garden waste compost; T2, application of 15 kg·m −3 bentonite; and T3, a mixture of garden waste compost and bentonite. In addition, soil physicochemical properties, soil enzymes, microbial biomass carbon and the soil microbial community were measured. The results show that T3 had a more significant effect on increasing soil enzymes, as well as microbial biomass carbon and nitrogen, urease, sucrase and dehydrogenase activities. Based on the relative abundance, microbial diversity and linear discriminant effect size (LEfSe) analyses, the amendments can be seen to have increased the microbial abundance and alpha diversity of the bacterial structure and also altered the microbial community structure. RDA and Pearson correlation analysis at the phylum level indicated that available nitrogen, total porosity, hydraulic conductivity, bulk density and EC were the primary determinants of microbial communities associated with this amendment. In conclusion, the application of garden waste compost enables more microorganisms to participate in the soil material cycle, indicating that garden waste composting is beneficial to the restoration of coastal soils.

Suggested Citation

  • Jingnan Li & Haiyang Zhang & Li Zheng, 2023. "Influence of Organic Amendments Based on Garden Waste for Microbial Community Growth in Coastal Saline Soil," Sustainability, MDPI, vol. 15(6), pages 1-16, March.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:6:p:5038-:d:1095147
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    References listed on IDEAS

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    1. Zhanjun Liu & Qinlei Rong & Wei Zhou & Guoqing Liang, 2017. "Effects of inorganic and organic amendment on soil chemical properties, enzyme activities, microbial community and soil quality in yellow clayey soil," PLOS ONE, Public Library of Science, vol. 12(3), pages 1-20, March.
    2. Yifei Zhao & Qing Liu & Runqiu Huang & Haichen Pan & Min Xu, 2020. "Recent Evolution of Coastal Tidal Flats and the Impacts of Intensified Human Activities in the Modern Radial Sand Ridges, East China," IJERPH, MDPI, vol. 17(9), pages 1-20, May.
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    4. Runze Tong & Wenchao Sun & Quan Han & Jingshan Yu & Zaifeng Tian, 2020. "Spatial and Temporal Variations in Extreme Precipitation and Temperature Events in the Beijing–Tianjin–Hebei Region of China over the Past Six Decades," Sustainability, MDPI, vol. 12(4), pages 1-19, February.
    5. Jingnan Li & Xiangyang Sun & Suyan Li, 2020. "Effects of Garden Waste Compost and Bentonite on Muddy Coastal Saline Soil," Sustainability, MDPI, vol. 12(9), pages 1-13, April.
    6. Zhang, Tao & Wang, Ting & Liu, KS & Wang, Lixue & Wang, Kun & Zhou, Yan, 2015. "Effects of different amendments for the reclamation of coastal saline soil on soil nutrient dynamics and electrical conductivity responses," Agricultural Water Management, Elsevier, vol. 159(C), pages 115-122.
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    1. Elena Elisabeta Manea & Costel Bumbac & Laurentiu Razvan Dinu & Marius Bumbac & Cristina Mihaela Nicolescu, 2024. "Composting as a Sustainable Solution for Organic Solid Waste Management: Current Practices and Potential Improvements," Sustainability, MDPI, vol. 16(15), pages 1-25, July.

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