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Changes in bud bank and their correlation with plant community composition in degraded alpine meadows
Bud banks are considered a crucial factor in regulating the species composition of grassland communities and maintaining the ecological function of alpine grasslands. However, few studies have paid attention to the dynamic changes of bud banks from undisturbed to severely degraded alpine meadows. Th...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10613031/ https://www.ncbi.nlm.nih.gov/pubmed/37900741 http://dx.doi.org/10.3389/fpls.2023.1259340 |
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author | Li, Yuan Bao, Gensheng Zhang, Peng Feng, Xiaoyun Ma, Jingjuan Lu, Hainian Shi, Hongxiao Wei, Xiaoxing Tang, Bingming Liu, Kai |
author_facet | Li, Yuan Bao, Gensheng Zhang, Peng Feng, Xiaoyun Ma, Jingjuan Lu, Hainian Shi, Hongxiao Wei, Xiaoxing Tang, Bingming Liu, Kai |
author_sort | Li, Yuan |
collection | PubMed |
description | Bud banks are considered a crucial factor in regulating the species composition of grassland communities and maintaining the ecological function of alpine grasslands. However, few studies have paid attention to the dynamic changes of bud banks from undisturbed to severely degraded alpine meadows. Therefore, this study examined the correlations between plant diversity and bud bank traits at different stages of alpine meadows degradation. Grass biomasses and plant diversity were found to be highest in moderately degraded meadows, and sedge biomasses were highest in lightly degraded meadows. Lack of disturbance and moderate disturbance by herbivores increased the bud bank density of alpine meadows. Consistent with the changes in bud bank density, bud bank diversity was highest in undisturbed meadows. The structural equation model indicated that the densities of rhizome and the densities and diversities of tiller buds play crucial roles in facilitating the greater diversity of the plant community. Our findings suggest that the diversities and densities of rhizome and tiller buds in the degradation stages are synchronized with changes in plant diversity, and in the regenerative ability of bud banks, which largely determine the outcome of restoration in degraded meadows. These findings could provide a frame of reference for effectively restoring degraded alpine regions by regenerating bud banks. The potential driving force and renewal capacity of bud banks should be taken into account in restoring the Qinghai-Tibet Plateau’s degraded meadow. |
format | Online Article Text |
id | pubmed-10613031 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-106130312023-10-29 Changes in bud bank and their correlation with plant community composition in degraded alpine meadows Li, Yuan Bao, Gensheng Zhang, Peng Feng, Xiaoyun Ma, Jingjuan Lu, Hainian Shi, Hongxiao Wei, Xiaoxing Tang, Bingming Liu, Kai Front Plant Sci Plant Science Bud banks are considered a crucial factor in regulating the species composition of grassland communities and maintaining the ecological function of alpine grasslands. However, few studies have paid attention to the dynamic changes of bud banks from undisturbed to severely degraded alpine meadows. Therefore, this study examined the correlations between plant diversity and bud bank traits at different stages of alpine meadows degradation. Grass biomasses and plant diversity were found to be highest in moderately degraded meadows, and sedge biomasses were highest in lightly degraded meadows. Lack of disturbance and moderate disturbance by herbivores increased the bud bank density of alpine meadows. Consistent with the changes in bud bank density, bud bank diversity was highest in undisturbed meadows. The structural equation model indicated that the densities of rhizome and the densities and diversities of tiller buds play crucial roles in facilitating the greater diversity of the plant community. Our findings suggest that the diversities and densities of rhizome and tiller buds in the degradation stages are synchronized with changes in plant diversity, and in the regenerative ability of bud banks, which largely determine the outcome of restoration in degraded meadows. These findings could provide a frame of reference for effectively restoring degraded alpine regions by regenerating bud banks. The potential driving force and renewal capacity of bud banks should be taken into account in restoring the Qinghai-Tibet Plateau’s degraded meadow. Frontiers Media S.A. 2023-10-13 /pmc/articles/PMC10613031/ /pubmed/37900741 http://dx.doi.org/10.3389/fpls.2023.1259340 Text en Copyright © 2023 Li, Bao, Zhang, Feng, Ma, Lu, Shi, Wei, Tang and Liu https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Plant Science Li, Yuan Bao, Gensheng Zhang, Peng Feng, Xiaoyun Ma, Jingjuan Lu, Hainian Shi, Hongxiao Wei, Xiaoxing Tang, Bingming Liu, Kai Changes in bud bank and their correlation with plant community composition in degraded alpine meadows |
title | Changes in bud bank and their correlation with plant community composition in degraded alpine meadows |
title_full | Changes in bud bank and their correlation with plant community composition in degraded alpine meadows |
title_fullStr | Changes in bud bank and their correlation with plant community composition in degraded alpine meadows |
title_full_unstemmed | Changes in bud bank and their correlation with plant community composition in degraded alpine meadows |
title_short | Changes in bud bank and their correlation with plant community composition in degraded alpine meadows |
title_sort | changes in bud bank and their correlation with plant community composition in degraded alpine meadows |
topic | Plant Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10613031/ https://www.ncbi.nlm.nih.gov/pubmed/37900741 http://dx.doi.org/10.3389/fpls.2023.1259340 |
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