PJB-2021-677
Performance of different sized urban trees for aboveground carbon sequestration in semi arid environment
Afsheen Khan, S. Shahid Shaukat, Toqeer Ahmed Rao and Bushreen Jahan
Abstract
The study primarily focuses on the evaluation of carbon sequestration capability of seven tree species (Conocarpus erectus, Azadirachta indica, Vachellia nilotica, Delonix regia, Parkinsonia aculeate, Cassia fistula and Guaiacum officinale) commonly growing on roadsides and off-roadsides in Karachi city. The DBH (diameter at breast height) and height of trees of each species were recorded from two habitats (off-roads i.e., inner streets, including Karachi University Campus) and main roadsides in Gulshan-e-Iqbal area. The former habitat is only slightly polluted while the later is amply polluted. Soil samples were collected (from 0-30 cm depth) and analysed physically and chemically. The DBH distribution was examined using histograms. Using tree DBH and height data simple but authentic equations put forward by earlier workers were applied to estimate total biomass and carbon stocks accumulated by the tree species. The highest carbon stock was accumulated by Azadirachta indica because of its greater size and mostly older trees with high DBH.
To Cite this article:
Khan, A., S.S. Shaukat, T.A. Rao and B. Jahan. 2023. Performance of different sized urban trees for aboveground carbon sequestration in semi arid environment. Pak. J. Bot., 55(2): DOI: http://dx.doi.org/10.30848/PJB2023-2(6)
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