Carbon sequestration potential of trees from urban green spaces of Kolhapur city, Maharashtra, India

Abstract

This study was an investigation into the carbon storage and sequestration of trees grown in the green spaces of Kolhapur city, Maharashtra. Urban gardens and green spaces, mainly considering big trees, have a great potential to sequester carbon from the atmosphere and to mitigate the impacts of climate change in cities. Total ten green pockets (gardens) were selected from Kolhapur city. This study was a sustainability initiative to inventory tree species from the green pockets and to assess their carbon sequestration potential for improved urban planning in the future. The above ground biomass (AGB) and below ground biomass (BGB) were estimated by a non destructive method. This included the measurement of tree height and diameter. A total of 29 species of trees were recorded during the study with a storage potential of 688.77 tons of carbon dioxide. Polyalthia longifolia was found to sequester maximum carbon dioxide (CO2) followed by Albizia saman and Mangifera indica. This research highlights the role of urban forests or green spaces and gardens, not only as ornamental and aesthetic plantations but also for mitigating the impacts of climate change at a local level. Well planned urban spaces and urban trees have a major role as green vegetation cover which can act as a carbon sink with high potential which will help in policy making and decision making in the future.

Keywords

• above ground biomass
• below ground biomass
• urban green spaces
• urban trees
• carbon restoration