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Carbon sequestration Potential assessment of urban landscape and characterization of urban trees for dust accumulation and wax content: A case study in Bengaluru city, India

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Author Affiliations

  • 1Dept. Forestry and Environmental science, UAS, GKVK, Bengaluru, Karnataka, 560065, India
  • 2Dept. Forestry and Environmental science, UAS, GKVK, Bengaluru, Karnataka, 560065, India

Int. Res. J. Environment Sci., Volume 12, Issue (1), Pages 24-32, April,22 (2023)

Abstract

Urban trees provide many ecosystem services, such as climate stabilization through carbon sequestration, air quality improvement and biodiversity conservation. As a result, trees store a considerable amount of carbon in their structures, and annual growth increases the carbon stored in the structure. This study investigates the diversity and carbon sequestration in tree that are grown in different landscapes of cities such as residential areas, avenue trees, parks, industrial areas and around the lake in one of the wards of Bengaluru city. In the present study, 44 tree species belonging to 23 families were found. The total carbon content accumulated by the trees in the study area is 505 tons and total CO2 sequestered is 1852 tons which is equal to removal of CO2 emission from 5,60,000 bikes on average runs per day. Out of the six species studied, the highest carbon sequestration was found in Peltophorum pterocarpum and the lowest was found in Michelia champaca. This study also analysed the variation in pattern of dust accumulation and wax content on leaves of different tree species in different seasons. Dust is an air contaminant in urban areas that often exceeds limit values, creating serious problems due to its harmful effects on health. Planting trees and shrubs as air filters is one way to enhance air quality in these regions. Among plant species, the highest dust accumulation, irrespective of seasons was noticed in Tabebuia rosea and the highest wax content was seen in Peltophorum pterocarpum. Thus, maintaining trees in urban areas help in conserving biodiversity and ameliorating climate.

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