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

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....

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Main Authors: Yupeng Lu, Zhu Gao, Jipeng Mao, Mengfei Lin, Xuchen Gong, Xiaoling Wang
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:Agriculture
Subjects:
Online Access:https://www.mdpi.com/2077-0472/13/10/1968
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author Yupeng Lu
Zhu Gao
Jipeng Mao
Mengfei Lin
Xuchen Gong
Xiaoling Wang
author_facet Yupeng Lu
Zhu Gao
Jipeng Mao
Mengfei Lin
Xuchen Gong
Xiaoling Wang
author_sort Yupeng Lu
collection DOAJ
description 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.
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spelling doaj.art-73166f2723d241dcbd11532e18e4730f2023-11-19T15:19:17ZengMDPI AGAgriculture2077-04722023-10-011310196810.3390/agriculture13101968Litter Decomposition of Two Kiwifruit Cultivars (‘Jinkui’ and ‘Hort-16A’) with Different Litter Qualities in the Orchard EcosystemYupeng Lu0Zhu Gao1Jipeng Mao2Mengfei Lin3Xuchen Gong4Xiaoling Wang5Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang 330096, ChinaInstitute of Biological Resources, Jiangxi Academy of Sciences, Nanchang 330096, ChinaInstitute of Biological Resources, Jiangxi Academy of Sciences, Nanchang 330096, ChinaInstitute of Biological Resources, Jiangxi Academy of Sciences, Nanchang 330096, ChinaInstitute of Biological Resources, Jiangxi Academy of Sciences, Nanchang 330096, ChinaInstitute of Biological Resources, Jiangxi Academy of Sciences, Nanchang 330096, ChinaThe 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.https://www.mdpi.com/2077-0472/13/10/1968litter qualitykiwifruitdecomposition processnutrientssoil enzymes
spellingShingle Yupeng Lu
Zhu Gao
Jipeng Mao
Mengfei Lin
Xuchen Gong
Xiaoling Wang
Litter Decomposition of Two Kiwifruit Cultivars (‘Jinkui’ and ‘Hort-16A’) with Different Litter Qualities in the Orchard Ecosystem
Agriculture
litter quality
kiwifruit
decomposition process
nutrients
soil enzymes
title Litter Decomposition of Two Kiwifruit Cultivars (‘Jinkui’ and ‘Hort-16A’) with Different Litter Qualities in the Orchard Ecosystem
title_full Litter Decomposition of Two Kiwifruit Cultivars (‘Jinkui’ and ‘Hort-16A’) with Different Litter Qualities in the Orchard Ecosystem
title_fullStr Litter Decomposition of Two Kiwifruit Cultivars (‘Jinkui’ and ‘Hort-16A’) with Different Litter Qualities in the Orchard Ecosystem
title_full_unstemmed Litter Decomposition of Two Kiwifruit Cultivars (‘Jinkui’ and ‘Hort-16A’) with Different Litter Qualities in the Orchard Ecosystem
title_short Litter Decomposition of Two Kiwifruit Cultivars (‘Jinkui’ and ‘Hort-16A’) with Different Litter Qualities in the Orchard Ecosystem
title_sort litter decomposition of two kiwifruit cultivars jinkui and hort 16a with different litter qualities in the orchard ecosystem
topic litter quality
kiwifruit
decomposition process
nutrients
soil enzymes
url https://www.mdpi.com/2077-0472/13/10/1968
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