Allometric equations for estimating peak uprooting force of riparian vegetation
Uprooting caused by flood events is a significant disturbance factor that affects the establishment, growth, and mortality of riparian vegetation. If the hydraulic drag force acting on riparian plants exceeds the peak uprooting force originate from their below-ground portion, it may result in the up...
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Frontiers Media S.A.
2023-07-01
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Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2023.1192486/full |
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author | Yi Zhang Yi Zhang Wei Liu Wei Liu Siming He Siming He |
author_facet | Yi Zhang Yi Zhang Wei Liu Wei Liu Siming He Siming He |
author_sort | Yi Zhang |
collection | DOAJ |
description | Uprooting caused by flood events is a significant disturbance factor that affects the establishment, growth, and mortality of riparian vegetation. If the hydraulic drag force acting on riparian plants exceeds the peak uprooting force originate from their below-ground portion, it may result in the uprooting of these plants. Despite previous studies have documented and investigated the uprooting processes and factors influencing the peak uprooting force of plants, most of these studies have focused on how the root morphological traits of tree and shrub seedlings affect peak uprooting force or mainly collected data in indoor experiments, which may limit the extrapolation of the results to natural environments. To address these limitations, we assume that the peak uprooting force can be estimated by the morphological traits of the above-ground portion of the vegetation. In this study, we conducted in-situ vertical uprooting tests on three locally dominant species: Conyza canadensis, Daucus carota, and Leonurus sibiricus, in a typical riverine environment. The three species were found to have the highest abundance based on the outcomes of the quadrat method. We measured the peak uprooting force, plant height, stem basal diameter, shoot and root wet biomass, and shoot and root dry biomass of each plant and compared them between species. Furthermore, we quantified the influence of morphology on peak uprooting force. Our results showed significant differences in morphological traits and peak uprooting force among the three species. We found a significant positive correlation between peak uprooting force and the morphological traits of the three species. The peak uprooting force increases with plant size following a power law function which is analogous to allometric equations. The allometric equation provided a convenient and non-destructive method to estimate the peak uprooting force based on the above-ground morphological traits of the plants, which may help to overcome the limitations of measuring root morphological traits. |
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language | English |
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spelling | doaj.art-853c18869d174e0ba591bf76eb0e00b52023-07-03T10:01:57ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2023-07-011410.3389/fpls.2023.11924861192486Allometric equations for estimating peak uprooting force of riparian vegetationYi Zhang0Yi Zhang1Wei Liu2Wei Liu3Siming He4Siming He5Key Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, ChinaSchool of Engineering Science, University of Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, ChinaSchool of Engineering Science, University of Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, ChinaSchool of Engineering Science, University of Chinese Academy of Sciences, Beijing, ChinaUprooting caused by flood events is a significant disturbance factor that affects the establishment, growth, and mortality of riparian vegetation. If the hydraulic drag force acting on riparian plants exceeds the peak uprooting force originate from their below-ground portion, it may result in the uprooting of these plants. Despite previous studies have documented and investigated the uprooting processes and factors influencing the peak uprooting force of plants, most of these studies have focused on how the root morphological traits of tree and shrub seedlings affect peak uprooting force or mainly collected data in indoor experiments, which may limit the extrapolation of the results to natural environments. To address these limitations, we assume that the peak uprooting force can be estimated by the morphological traits of the above-ground portion of the vegetation. In this study, we conducted in-situ vertical uprooting tests on three locally dominant species: Conyza canadensis, Daucus carota, and Leonurus sibiricus, in a typical riverine environment. The three species were found to have the highest abundance based on the outcomes of the quadrat method. We measured the peak uprooting force, plant height, stem basal diameter, shoot and root wet biomass, and shoot and root dry biomass of each plant and compared them between species. Furthermore, we quantified the influence of morphology on peak uprooting force. Our results showed significant differences in morphological traits and peak uprooting force among the three species. We found a significant positive correlation between peak uprooting force and the morphological traits of the three species. The peak uprooting force increases with plant size following a power law function which is analogous to allometric equations. The allometric equation provided a convenient and non-destructive method to estimate the peak uprooting force based on the above-ground morphological traits of the plants, which may help to overcome the limitations of measuring root morphological traits.https://www.frontiersin.org/articles/10.3389/fpls.2023.1192486/fullriparian vegetationuprooting forceuprooting testflow resistanceallometric equationsmorphological traits |
spellingShingle | Yi Zhang Yi Zhang Wei Liu Wei Liu Siming He Siming He Allometric equations for estimating peak uprooting force of riparian vegetation Frontiers in Plant Science riparian vegetation uprooting force uprooting test flow resistance allometric equations morphological traits |
title | Allometric equations for estimating peak uprooting force of riparian vegetation |
title_full | Allometric equations for estimating peak uprooting force of riparian vegetation |
title_fullStr | Allometric equations for estimating peak uprooting force of riparian vegetation |
title_full_unstemmed | Allometric equations for estimating peak uprooting force of riparian vegetation |
title_short | Allometric equations for estimating peak uprooting force of riparian vegetation |
title_sort | allometric equations for estimating peak uprooting force of riparian vegetation |
topic | riparian vegetation uprooting force uprooting test flow resistance allometric equations morphological traits |
url | https://www.frontiersin.org/articles/10.3389/fpls.2023.1192486/full |
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