Evaluating the effects of trenching on growth, physiology and uprooting resistance of two urban tree species over 51-months

Fini, Alessio; Frangi, P.; Mori, Jacopo; Sani, L.; Vigevani, Irene; Ferrini, F.

doi:10.1016/j.ufug.2020.126734

Cited by 7 publications

(3 citation statements)

References 51 publications

(93 reference statements)

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“…More recent findings by Fini et al (2020) showed that Aesculus hippocastanum L. and Tilia × europaea L. trees experienced long-term losses (e.g., nearly 5 years) in rooting strength when trenched 4.5 times the DBH away from the tree base. These results are supported by post-storm field observations conducted by Johnson et al in 2019. In their study, researchers determined that street trees located adjacent to sidewalks that were replaced in the years prior were more than twice as likely to fail following a wind event compared to trees without construction damage.…”

Section: Introductionmentioning

confidence: 99%

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Fini et al 2020), with the extent of impact dependent on factors such as proximity to the tree, tree species, age, and condition (Matheny et al 2023).In industry best management practices (BMPs) and local tree preservation policies, proximity is often scaled relative to the diameter at breast height (DBH) of a tree. For example, trenching occurring 30 cm away from the base of a tree with a stem diameter of 30 cm would be considered as one times the DBH.

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confidence: 99%

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Quercus virginianaMill. Root Regrowth Following Linear Trenching

Koeser,

Grabosky,

Benson

et al. 2024

isa

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BackgroundAs long-lived organisms, urban trees often encounter development and redevelopment activities during their lifespans. These activities can damage tree roots, often through methods like root severing during trenching or excavation.MethodsIn 2017, we simulated trenching damage on matureQuercus virginianaMill. trees at 3 different distances from the base (3, 6, or 12 times the stem diameter). After 5 years, we revisited these trees to assess root regrowth based on the cut root’s cross-sectional area (CSA) and distance from the base.ResultsWe observed regrowth in all but 38 (6.7%) of the 557 cut roots revisited. The lack of regrowth in some roots was not associated with our original treatments, the CSA of the roots at the time of trenching, or distance between the cut root end and the trunk (minimumP-value = 0.841). On average, the observed CSA of the regrowth was 22.2% of the original root’s CSA. Only our initial trenching treatments (P-value = 0.024) and the distance between the trunk and the cut root end (P-value = 0.002) significantly predicted the level of regrowth observed 5 years after pruning.ConclusionsIn summary, our findings indicate that root systems require many years to recover from trenching damage. Increasing the distance between trenching activities and trees may have a minor effect on root regrowth.

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Section: Introductionmentioning

confidence: 99%

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Quercus virginianaMill. Root Regrowth Following Linear Trenching

Koeser,

Grabosky,

Benson

et al. 2024

isa

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“…For the sake of simplicity, we will refer to these collectively as "trenching" in this article. Trenching damage can diminish both tree health (Watson 1998, Benson et al 2019b) and stability (Smiley et al 2014, Fini et al 2020, with the extent of impact dependent on factors such as proximity to the tree, tree species, age, and condition (Matheny et al 2023).…”

Section: Introductionmentioning

confidence: 99%

Root Regrowth and Discoloration in <em>Quercus virginiana</em> Mill. Following Linear Trenching

Koeser,

Grabosky,

Benson

et al. 2023

Preprint

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Background: As long-lived organisms, urban trees often encounter development and redevelopment activities in close proximity during their lifespans. These activities can damage tree roots, often through methods like root severing during trenching or excavation. Methods: In 2017, we simulated trenching damage on mature Quercus virginiana Mill. trees at three different distances from the base (3x, 6x, and 12x the stem diameter). After five years, we revisited these trees to assess root regrowth based on the cut root's cross-sectional area (CSA) and distance from the base. Results: We observed regrowth in all but 38 (6.7%) of the 557 cut roots revisited. The lack of regrowth in some roots was not associated with our original treatments, the CSA of the roots at the time of trenching, or distance between the cut root end and the trunk (minimum P-value = 0.841). On average, the observed CSA of the regrowth was 22.2% of the original root's CSA. Only our original trenching treatments significantly predicted the level of regrowth observed five years after pruning (P-value = 0.024). Discoloration due to root pruning was minimal. Conclusion: In summary, our findings indicate that root systems require many years to recover from trenching damage. Increasing the distance between trenching activities and trees may have a minor effect on root regrowth but primarily helps reduce initial stress on the tree.

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Rootability confinement and soil-husbandry solutions for urban trees in sealed and insular sites

Jim

2022

Plant Soil

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Evaluating the effects of trenching on growth, physiology and uprooting resistance of two urban tree species over 51-months

Cited by 7 publications

References 51 publications

Quercus virginianaMill. Root Regrowth Following Linear Trenching

Quercus virginianaMill. Root Regrowth Following Linear Trenching

Root Regrowth and Discoloration in <em>Quercus virginiana</em> Mill. Following Linear Trenching

Rootability confinement and soil-husbandry solutions for urban trees in sealed and insular sites

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