Open AccessCarbon Sequestration Potential of Urban Green Spaces (PMC Gardens) in Pune City, India
Author(s) -
R. Shinde Vijayalaxmi,
M. Mahajan Dnyanesh
Publication year - 2021
Publication title -
journal of geography, environment and earth science international
Language(s) - English
Resource type - Journals
ISSN - 2454-7352
DOI - 10.9734/jgeesi/2021/v25i630291
Subject(s) - environmental science , biomass (ecology) , carbon sequestration , forestry , litter , diameter at breast height , latitude , carbon fibers , sampling (signal processing) , mathematics , geography , agronomy , ecology , carbon dioxide , engineering , biology , geodesy , electrical engineering , filter (signal processing) , algorithm , composite number
Aim: To estimate the Carbon sequestration potential of trees in Urban green spaces of Pune city.
Study Design: The methods suggested by Ravindranath and Ostwald were used for measuring the above and belowground biomass and estimation of carbon pool. Random sampling technique was used to collect soil samples. As the study area were one acre and above, each and every tree was sampled for various parameters. The GPS instrument was used for measuring latitude and longitude of each and every tree.
Place and Duration of Study: The gardens developed by Pune Municipal Corporation (total 66 having an area one acre and above) Pune, Three years( from January 2015 to December 2015, January 2016 to December 2016, January 2017 to December 2017)
Methodology: The gardens having an area one acre and above were selected for the work. Each and every tree is sampled along with its position on ground by using GPS instrument. Sampling of tree includes measuring Height and Girth at breast height (GBH). Later, the parameters like Volume, Mass, Wood density, Above and Below ground biomass, Total biomass and Total carbon were calculated as per the standard methods given by Ravindranath and Ostwald [1] Soil samples were collected randomly from a depth of 30 cm as it is a zone of highest microbial activity. Walkley‐Black Wet Oxidation method was used to find out soil organic carbon.
Results: Total amount of above and belowground carbon sequestered was estimated to be 7,00,507.83 tonnes; litter and deadwood 24,904.05, and soil organic carbon 1879.905; and the sum of all were 7,27,291.785 tonnes. The exotic species sequester 2,69,287.4 tonnes and native sequester 80,966.55 tonnes of carbon. The rates of carbon in active markets are US$ 30 (Thirty dollars) per tonne.
Conclusion: Putting a conservative value of US$ 30 per tonne of CO2 locked in these sampled gardens, this carbon sink of about 7,27,291.785 tonnes of CO2 is worth of US $ 21818753.55 or Indian Rs. 1606733011.422/-It will help in Climate mitigation and reducing the carbon footprints of Pune city.