Abstract
Anthropogenic emissions of carbon dioxide (CO2) have reached critical thresholds, necessitating robust terrestrial carbon sinks to mitigate climate change. Phytosequestration-the biologically mediated capture and storage of atmospheric CO2 by plants-has emerged as a cornerstone strategy in ecosystem-based carbon management. Urban and peri-urban landscapes, particularly institutional campuses, offer a controlled environment to evaluate the carbon sequestration potential of various tree species while simultaneously addressing their landscape functionality. This study presents a detailed, data-intensive comparative analysis of major indigenous and exotic avenue tree species based on their carbon sequestration potential and landscape utility, conducted within the Annamalai University campus, Tamil Nadu, in the year 2022. Using biometric and allometric parameters such as diameter at breast height (DBH), total tree height, fresh and dry biomass, and CO2 conversion coefficients, this research quantifies the phytosequestration rates of five replicates per species. The selected taxa include indigenous species-Ficus religiosa (Peepal), Peltophorum pterocarpum (Rusty Copper Shield), Azadirachta indica (Neem), and Millettia pinnata (Pungam)-and exotic species-Albizia saman (Rain Tree) and Acacia auriculiformis. Results indicate that Ficus religiosa demonstrated the highest average carbon sequestration rate (0.46 kg/day/tree), significantly outperforming its exotic counterparts. Peltophorum pterocarpum and Azadirachta indica followed closely, with sequestration potentials of 0.42 and 0.25 kg/day/tree, respectively. Among exotics, Albizia saman ranked highest (0.44 kg/day/tree), while Acacia auriculiformis showed minimal sequestration capacity. Furthermore, indigenous species exhibited superior adaptability, canopy architecture, and socio-cultural value, reinforcing their preference in sustainable urban forestry programs.
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Claims 7
Claim · model-written summary
Ficus religiosa had the highest average carbon sequestration rate, significantly outperforming its exotic counterparts
- Taxon
- Ficus religiosa
.jpg?width=60)
Ficus religiosae1 - Outcome
- carbon sequestration ratee1
- Direction
- outperforminge1
- Value
- 0.46 kg/day/treee1
- Comparator
- exotic counterpartse1
- Setting
- Annamalai University campus, Tamil Nadue2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e1“Ficus religiosa demonstrated the highest average carbon sequestration rate (0.46 kg/day/tree), significantly outperforming its exotic counterparts”
e2“conducted within the Annamalai University campus, Tamil Nadu, in the year 2022”
Claim · model-written summary
Peltophorum pterocarpum had a sequestration potential of 0.42 kg/day/tree and followed the top species closely
- Taxon
- Peltophorum pterocarpum
Peltophorum pterocarpume3 - Outcome
- sequestration potentialse3
- Value
- 0.42e3
- Setting
- Annamalai University campus, Tamil Nadue2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Peltophorum pterocarpum and Azadirachta indica followed closely, with sequestration potentials of 0.42 and 0.25 kg/day/tree, respectively”
e2“conducted within the Annamalai University campus, Tamil Nadu, in the year 2022”
Claim · model-written summary
Azadirachta indica had a sequestration potential of 0.25 kg/day/tree and followed the top species closely
- Taxon
- Azadirachta indica
.jpg?width=60)
Azadirachta indicae3 - Outcome
- sequestration potentialse3
- Value
- 0.25e3
- Setting
- Annamalai University campus, Tamil Nadue2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e3“Peltophorum pterocarpum and Azadirachta indica followed closely, with sequestration potentials of 0.42 and 0.25 kg/day/tree, respectively”
e2“conducted within the Annamalai University campus, Tamil Nadu, in the year 2022”
Claim · model-written summary
Albizia saman ranked highest among the exotic species, at 0.44 kg/day/tree
- Taxon
- Albizia saman
Samanea samane4 - Outcome
- carbon sequestration ratee1
- Direction
- ranked higheste4
- Value
- 0.44 kg/day/treee4
- Setting
- Annamalai University campus, Tamil Nadue2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Among exotics, Albizia saman ranked highest (0.44 kg/day/tree)”
e1“Ficus religiosa demonstrated the highest average carbon sequestration rate (0.46 kg/day/tree), significantly outperforming its exotic counterparts”
e2“conducted within the Annamalai University campus, Tamil Nadu, in the year 2022”
Claim · model-written summary
Acacia auriculiformis showed minimal carbon sequestration capacity
- Taxon
- Acacia auriculiformis
Acacia auriculiformise5 - Outcome
- sequestration capacitye5
- Direction
- minimale5
- Setting
- Annamalai University campus, Tamil Nadue2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“while Acacia auriculiformis showed minimal sequestration capacity”
e2“conducted within the Annamalai University campus, Tamil Nadu, in the year 2022”
Claim · model-written summary
Indigenous species showed superior adaptability, canopy architecture and socio-cultural value
Verbatim
e6“indigenous species exhibited superior adaptability, canopy architecture, and socio-cultural value, reinforcing their preference in sustainable urban forestry programs”
e2“conducted within the Annamalai University campus, Tamil Nadu, in the year 2022”
Claim · model-written summary
The authors recommend preferring indigenous species in sustainable urban forestry programs
Verbatim
e6“indigenous species exhibited superior adaptability, canopy architecture, and socio-cultural value, reinforcing their preference in sustainable urban forestry programs”