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Litter Decomposition of Two Kiwifruit Cultivars (‘Jinkui’ and ‘Hort-16A’) with Different Litter Qualities in the Orchard Ecosystem

Author

Listed:
  • Yupeng Lu

    (Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang 330096, China)

  • Zhu Gao

    (Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang 330096, China)

  • Jipeng Mao

    (Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang 330096, China)

  • Mengfei Lin

    (Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang 330096, China)

  • Xuchen Gong

    (Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang 330096, China)

  • Xiaoling Wang

    (Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang 330096, China
    Jiangxi Kiwifruit Engineering Research Center, Nanchang 330096, China)

Abstract

The aim of this study was to reveal the decomposition differences of kiwifruit litters with different qualities and verify the “Initial Litter Quality Hypothesis”. This study took litters of ‘Jinkui’ and ‘Hort-16A’ kiwifruit as the research objects, and carried out in situ decomposition experiments. The decomposition rate, nutrients release process, and soil enzyme activities were analyzed. In this study, the litter of ‘Hort-16A’ kiwifruit decomposed faster than the litter of ‘Jinkui’ kiwifruit. The decomposition time was positively correlated with the initial concentration of C of the litters, but negatively correlated with the concentrations of N and P. Except for P and Mn, the dynamic trends of the nutrient concentrations were similar during the litter decomposition of ‘Jinkui’ and ‘Hort-16A’ kiwifruit. After 180 days of decomposition, about 85%~95% of the initial concentrations of the macro-elements of the ‘Hort-16A’ kiwifruit litter were released. The dynamic trends of protease activities were similar, but that of sucrase, β-1,4-glucosidase, polyphenol oxidase, and phosphatase were different. In conclusion, the litter quality of kiwifruit affects the decomposition rate, and the difference in decomposition rate in turn affects the dynamic processes of nutrient release and soil enzyme activity. This study provides evidence for the “Initial Litter Quality Hypothesis” in the orchard ecosystem.

Suggested Citation

  • Yupeng Lu & Zhu Gao & Jipeng Mao & Mengfei Lin & Xuchen Gong & Xiaoling Wang, 2023. "Litter Decomposition of Two Kiwifruit Cultivars (‘Jinkui’ and ‘Hort-16A’) with Different Litter Qualities in the Orchard Ecosystem," Agriculture, MDPI, vol. 13(10), pages 1-17, October.
    • Handle: RePEc:gam:jagris:v:13:y:2023:i:10:p:1968-:d:1255772
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    References listed on IDEAS

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    1. Shaqian Liu & Rui Yang & Xudong Peng & Chunlan Hou & Juebing Ma & Jiarui Guo, 2022. "Contributions of Plant Litter Decomposition to Soil Nutrients in Ecological Tea Gardens," Agriculture, MDPI, vol. 12(7), pages 1-19, July.
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