Potensi Serapan Gas Karbondioksida (CO2) Pada Jenis-Jenis Pohon Pelindung Jalan

Abstract

A Study of Potential Absorption of Carbon Dioxide (CO2) in Wayside Trees in Bogor City around was conducted
in April to May 2013 by using a portable LCi ADC Bioscientific Ltd. Photosynthesis System. Inventory of wayside
trees species in the site was done by surveys, and sixty-three samples from twenty-one species of wayside trees have
been measured. This study for determined the ability of CO2 absorption in each species of wayside trees species.
Twenty one species of wayside trees were recorded. Angsana (Pterocarpus indicus), Mahogany (Swietenia
macrophylla), Walnuts (Canarium indicum), and Tanjung (Mimusops elengii) were common wayside trees planted in
Bogor and surrounding areas. The highest rate of CO2 absorption was recorded for Kersen (Muntingia calabura) on
average of 23.92 μmol/m2/s , followed by the Bintaro (Cerbera manghas) 16.42 μmol/m2/s, Dadap (Erythrina cristagalli)
16.38 μmol/m2/s, and Trembesi (Albizia saman) 15.87 μmol/m2/s. A common planted species in the range
between 8 to 13 μmol/m2/s, such as; Angsana (Pterocarpus indicus) 12,79 μmol/m2/s, Walnuts (Canarium
indicum) 9,39 μmol/m2/s, Tanjung (Mimusops elengi) 8,72 μmol/m2/s and Mahogany (Swietenia macrophylla) 8,30
μmol/m2/s. While the lowest CO2 absorption is Burahol (Stelechocarpus burahol) 7.16 μmol/m2/s, Bunga
Saputangan (Maniltoa grandiflora) 7.89 μmol/m2/s and Damar (Agathis alba) 7.86 μmol/m2/s. There were positive
correlation between transpiration rate with CO2 absorption rate and stomatal conductance on all the tree species
were measured.
Keywords: CO2 absorption, wayside trees, Bogor.