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Reutilization of Green Waste as Compost for Soil Improvement in the Afforested Land of the Beijing Plain

Author

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  • Jing Tong

    (College of Forestry, Beijing Forestry University, Beijing 100083, China)

  • Xiangyang Sun

    (College of Forestry, Beijing Forestry University, Beijing 100083, China)

  • Suyan Li

    (College of Forestry, Beijing Forestry University, Beijing 100083, China)

  • Bingpeng Qu

    (College of Forestry, Beijing Forestry University, Beijing 100083, China)

  • Long Wan

    (Jianshui Research Station, School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China)

Abstract

Resource utilization of urban green waste compost for soil improvement in afforested land is an important way of digesting urban green waste. In this study, artificial Sophora japonica Linn. Woodland in the Beijing plain, where the million mu (66,700 ha) afforestation project was carried out, was taken as an experimental area to investigate the influences of urban green waste composting on soil improvement and soil microorganisms. Application amounts of green waste composts for each tree were as follows: CK treatment: no application of fertilizer; T1 treatment: 5 kg/each tree; T2 treatment: 10 kg/each tree; T3 treatment: 15 kg/each tree. Results showed that the application of green waste had a significant effect on soil improvement, such as improving of organic matter, available phosphorus, and available potassium content ( p < 0.05). The high-level application amount (T3 treatment) had a greater effect on soil improvement. Compared with the control treatment (CK), soil pH in T3 treatment decreased to 7.28–7.45, Soil organic matter contents reached more than 35 g·kg −1 , and soil total nitrogen, soil available phosphorus, and soil available potassium increased by 25–28%, 200–400%, and 80–177%, respectively. Soil carbon–nitrogen ratio has increasing to 15.61–24.38 in the three treatments, which would not obviously slow down the decomposition of organic matter by microorganisms in the soil. After the application of green waste compost, the soil microbial structure was changed. From the operational taxonomic unit (OTU) level, bacterial abundance increased by 12–13%, but the change in bacterial diversity was not significant. The influences of pH and contents of organic matter content, available phosphorus, and rapidly available potassium on the bacterial community were greater. This study will provide the necessary scientific basis for the application of green waste compost in the improvement of soil on afforested land in the Beijing plain.

Suggested Citation

  • Jing Tong & Xiangyang Sun & Suyan Li & Bingpeng Qu & Long Wan, 2018. "Reutilization of Green Waste as Compost for Soil Improvement in the Afforested Land of the Beijing Plain," Sustainability, MDPI, vol. 10(7), pages 1-17, July.
    • Handle: RePEc:gam:jsusta:v:10:y:2018:i:7:p:2376-:d:156897
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    References listed on IDEAS

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    1. Meisel, Frank & Thiele, Nicole, 2014. "Where to dispose of urban green waste? Transportation planning for the maintenance of public green spaces," Transportation Research Part A: Policy and Practice, Elsevier, vol. 64(C), pages 147-162.
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    Cited by:

    1. Sergio Cappucci & Serena Nappi & Andrea Cappelli, 2022. "Green Public Areas and Urban Open Spaces Management: New GreenCAL Tool Algorithms and Circular Economy Implications," Land, MDPI, vol. 11(6), pages 1-25, June.
    2. 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.
    3. Latifah Omar & Osumanu Haruna Ahmed & Mohamadu Boyie Jalloh & Nik Muhamad Abdul Majid, 2021. "Rice Husk Compost Production and Use in Mitigating Ammonia Volatilization from Urea," Sustainability, MDPI, vol. 13(4), pages 1-23, February.

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