Defining the allometry of stem and crown diameter of urban trees

Coombes, Andrew; Martin, Jaime H.; Slater, Duncan

doi:10.1016/j.ufug.2019.126421

Cited by 22 publications

(13 citation statements)

References 20 publications

(19 reference statements)

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“…Since there w no specific information with respect to tree age and history of crown pruning treatmen the main criterion for selecting trees for the study was based on diameter at breast heig (dbh) exceeding 30 cm (Figure 2). The tree morphometric characteristics were analyzed based on parameters recommended by [6,[25][26][27][28]. The stem dbh (1.3 m-dbh (d)) was measured with a girth tape.…”

Section: Methodsmentioning

confidence: 99%

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Tree Morphometric Relationships and Dynamic Elasticity Properties in Tropical Rain Tree (Samanea saman Jacq. Merr)

Karlinasari

Adzkia

Puspitasari

et al. 2021

Forests

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Rain tree (Samanea saman) is a dominant species commonly planted as a shade tree in urban landscapes in the tropics, including in Indonesia. This species is also targeted for routine inspection and monitoring within tree management systems. Management should particularly focus on tree health through assessment of tree growth conditions as well as tree stability. However, baseline information on the relationships of many key characteristics for the rain tree (e.g., growth, morphometrics, and biomechanics) is lacking. Therefore, an investigation was carried out to determine the relationship of morphometric parameters to tree growth, which included use of an acoustic tool to assess the elasticity of the tree stem. Fifty rain trees were selected for data collection and evaluated using stress wave velocity tools and visual morphometrics assessment. The results demonstrated that, in general, the trees had good vigor and stability. Statistical analysis showed a strong relationship between tree growth parameters and selected morphometric characteristics. The use of a nondestructive acoustic-based instrument enabled determining the modulus of elasticity, which provided equivalent results with the elasticity value obtained through a common method for determining tree stability. Only live crown ratio and tree slenderness parameters had a relationship with the dynamic modulus of elasticity. These results offer a means of measurement that is simpler, less expensive, and faster than current methods, although further testing is needed for different tree species and growth sites.

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Section: Methodsmentioning

confidence: 99%

“…The horizontal projection of the crown (PCR) or crown projection area was determined by the formula PCR = DCR 2 x π /4. The tree morphometric characteristics were analyzed based on parameters reco mended by [6,[25][26][27][28]. The stem dbh (1.3 m-dbh (𝑑)) was measured with a girth tape.…”

Section: Methodsmentioning

confidence: 99%

Tree Morphometric Relationships and Dynamic Elasticity Properties in Tropical Rain Tree (Samanea saman Jacq. Merr)

Karlinasari

Adzkia

Puspitasari

et al. 2021

Forests

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“…The tree diameter is commonly used in allometries of trees (Dais et al, 2022). In studies conducted in urban areas, a strong relationship between the crown width and breast height diameter has been found (Semenzato, 2011;Troxel et al, 2013;Coombes et al, 2019). Vaz Monteiro et al (2016) referred that a correct estimation of crown width from breast height diameter can be achieved.…”

Section: Introductionmentioning

confidence: 98%

Allometries of Acer negundo for a better space management in two cities of northeastern Greece

2023

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The ability to estimate the space volume that a tree occupies, in various heights, is a crucial factor in designing the street trees schedule in pavements of new urban infrastructures. The dimensions of Acer negundo tree crown in various heights can be the basis for a better space management in the pavements of cities. In this study, the height and the crown width of the A. negundo street trees in the Greek cities of Orestiada and Alexandroupoli and the allometric relations that can be found between them, were investigated. Data from 117 street trees growing in semi-permeable pavements of the two cities were used. In each selected tree, the total height (H), and the maximum and minimum crown diameter (CW) were measured. The selected model (CW-H) for Alexandroupoli exhibits a coefficient of determination (R2) of 0.81. The R2 of the model selected for Orestiada is lower (R2 = 0.66). The R2 of the model selected using the complete dataset is 0.77. A. negundo appears to have greater crown width in Alexandroupoli compared to that of Orestiada. In Orestiada the conditions of growth were variable since in many cases the measured trees were under side shade, while this not the case in the corresponding trees in Alexandroupoli. The better fit of the selected model in Alexandroupoli compared to that of Orestiada is probably due to the more variable growth conditions of Orestiada.

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“…In many large cities of the world, different types of oak are found in parks, forests and local landscaping, for example, in New York (Banzhaf 2020), Berlin (Nickel et al 2019), US cities (Hill andBarone 2005, Earles et al 2018), Nikolaev (Kozlova et al 2019), Krakow (Klamerus-Iwan et al 2018), UK (Coombes et al 2019), Tbilisi and Kutaisi (Abramidze et al 2017) and other.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Urban Environment on the English Oak (Quercus Robur L.) Growth and Development

Popova¹,

Попова²

2021

alinteri

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The morphological parameters of the maternal trees growth, seed progeny and seedlings, and the value of the fluctuating asymmetry (FA) of the leaves of adult plants under urban influence were estimated. Urban oak groves have a low growth rate of shoots. Rural and suburban oak groves are characterized by an increase in the shoot. The coefficients of variation (Cv) in the length and width of leaf blades are generally low; only for 1 territory near urban radius and experiencing the influence of industrial enterprises, the Cv of the length of the leaf blade is 29.3% and the width of the leaf blade - 30.4%. FA for all oak forests, with the exception of Chizhovskoe tract (0.056), not exceed 0.04, thus, they are resistant to the anthropogenic factor. The average growth of seedlings is 13-14 cm. The coefficient of variation for shoot length for most groups of seedlings exceeds 30%. The suburban seedlings have the largest shoot thickness and exceed 0.3 cm. Among urban seedlings, the oak population in the most distant from the city (middle circle), is close to this indicator. The areas of the lowest emission load of pollutants coincide with the forest areas of the city.

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Defining the allometry of stem and crown diameter of urban trees

Cited by 22 publications

References 20 publications

Tree Morphometric Relationships and Dynamic Elasticity Properties in Tropical Rain Tree (Samanea saman Jacq. Merr)

Tree Morphometric Relationships and Dynamic Elasticity Properties in Tropical Rain Tree (Samanea saman Jacq. Merr)

Allometries of Acer negundo for a better space management in two cities of northeastern Greece

Influence of the Urban Environment on the English Oak (Quercus Robur L.) Growth and Development

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