Assessment of the Carbon Stock of Trees in Selected Urban Green Spaces of Davao City, Philippines

The combined impacts of deforestation, tree cover loss, and urbanization in urban and suburban areas significantly reduce the capacity of natural carbon sinks to sequester and store carbon. Hence, this study assessed the aboveground biomass (AGB) and carbon stock of trees in the selected green spac...

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Main Authors: Daiseree Cuabo, Yves P.M. Montero, Daryl S. Salas, John P.M. Viernes
Format: Article
Language:English
Published: Environmental Research Institute, Chulalongkorn University 2025-05-01
Series:Applied Environmental Research
Subjects:
Online Access:https://ph01.tci-thaijo.org/index.php/ecticit/article/view/216323https:/ph01.tci-thaijo.org/index.php/aer/article/view/260572
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author Daiseree Cuabo
Yves P.M. Montero
Daryl S. Salas
John P.M. Viernes
author_facet Daiseree Cuabo
Yves P.M. Montero
Daryl S. Salas
John P.M. Viernes
author_sort Daiseree Cuabo
collection DOAJ
description The combined impacts of deforestation, tree cover loss, and urbanization in urban and suburban areas significantly reduce the capacity of natural carbon sinks to sequester and store carbon. Hence, this study assessed the aboveground biomass (AGB) and carbon stock of trees in the selected green spaces of Davao City. A purposive sampling technique was employed in placing quadrats, with data collected from 27 plots categorized by size. AGB was estimated via an allometric equation, and aboveground carbon (AGC) was derived from the AGB values. A total of 358 individual trees from 25 species, 24 genera, and 13 families were documented. Species contributing more than 2% to the total AGC were identified as major carbon stock contributors, with Samanea saman demonstrating the highest carbon stock, followed by Pterocarpus indicus f. indicus and Acacia auriculiformis, despite Hibiscus tiliaceus being the most abundant. Spearman’s correlation was also used to find significant correlations between stem length, canopy area, and AGC, with a weak positive relationship between stem length and AGC (rs = 0.166) and a strong positive relationship between canopy area and AGC (rs = 0.631).
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spelling doaj-art-b90bb8153d4f4af6af069bc85ac4a86b2025-08-20T03:26:48ZengEnvironmental Research Institute, Chulalongkorn UniversityApplied Environmental Research2287-075X2025-05-0147210.35762/AER.2025014Assessment of the Carbon Stock of Trees in Selected Urban Green Spaces of Davao City, PhilippinesDaiseree Cuabo0Yves P.M. Montero1Daryl S. Salas2John P.M. Viernes3Natural Science Department, College of Arts and Sciences, University of Southeastern Philippines, Davao City, PhilippinesNatural Science Department, College of Arts and Sciences, University of Southeastern Philippines, Davao City, PhilippinesNatural Science Department, College of Arts and Sciences, University of Southeastern Philippines, Davao City, PhilippinesNatural Science Department, College of Arts and Sciences, University of Southeastern Philippines, Davao City, Philippines The combined impacts of deforestation, tree cover loss, and urbanization in urban and suburban areas significantly reduce the capacity of natural carbon sinks to sequester and store carbon. Hence, this study assessed the aboveground biomass (AGB) and carbon stock of trees in the selected green spaces of Davao City. A purposive sampling technique was employed in placing quadrats, with data collected from 27 plots categorized by size. AGB was estimated via an allometric equation, and aboveground carbon (AGC) was derived from the AGB values. A total of 358 individual trees from 25 species, 24 genera, and 13 families were documented. Species contributing more than 2% to the total AGC were identified as major carbon stock contributors, with Samanea saman demonstrating the highest carbon stock, followed by Pterocarpus indicus f. indicus and Acacia auriculiformis, despite Hibiscus tiliaceus being the most abundant. Spearman’s correlation was also used to find significant correlations between stem length, canopy area, and AGC, with a weak positive relationship between stem length and AGC (rs = 0.166) and a strong positive relationship between canopy area and AGC (rs = 0.631). https://ph01.tci-thaijo.org/index.php/ecticit/article/view/216323https:/ph01.tci-thaijo.org/index.php/aer/article/view/260572Urban green spacesAboveground biomassCarbon StockAllometric Equation
spellingShingle Daiseree Cuabo
Yves P.M. Montero
Daryl S. Salas
John P.M. Viernes
Assessment of the Carbon Stock of Trees in Selected Urban Green Spaces of Davao City, Philippines
Applied Environmental Research
Urban green spaces
Aboveground biomass
Carbon Stock
Allometric Equation
title Assessment of the Carbon Stock of Trees in Selected Urban Green Spaces of Davao City, Philippines
title_full Assessment of the Carbon Stock of Trees in Selected Urban Green Spaces of Davao City, Philippines
title_fullStr Assessment of the Carbon Stock of Trees in Selected Urban Green Spaces of Davao City, Philippines
title_full_unstemmed Assessment of the Carbon Stock of Trees in Selected Urban Green Spaces of Davao City, Philippines
title_short Assessment of the Carbon Stock of Trees in Selected Urban Green Spaces of Davao City, Philippines
title_sort assessment of the carbon stock of trees in selected urban green spaces of davao city philippines
topic Urban green spaces
Aboveground biomass
Carbon Stock
Allometric Equation
url https://ph01.tci-thaijo.org/index.php/ecticit/article/view/216323https:/ph01.tci-thaijo.org/index.php/aer/article/view/260572
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