Carbon Sinks of Morphologic Tree Stands in Bandung City Green Space: Case Study Taman Balai Kota, KebunBinatang, and Taman LaluLintas Ade Irma Suryani

Abstract

One of the greenhouse gases which have a big contribution at global warming issues is carbon dioxide gas (CO2). Open green spaces in Bandung city are urban forest that can sequester carbon dioxide gases and store it into biomass at stems, branches, or roots. The research was conducted from June to July 2015 at green spaces that the carbon sinks haven not been examined. The purpose of this research was to count the tree stands (DBH >5 cm) ability at Bandung green spaces in sequestrating carbon with quantitative approached. The carbon sequestration was estimated by allometric equations at RaCSA (Rapid Carbon Assessment) [1]. The research has been conducted in Kebun Binatang (KB), we found 35 families with 95 species. Taman Lalu Lintas (TLL) with 22 familiesand 47 species. Taman Balai Kota (TBK) has 19 families and 35 species. From the examined green spaces, there was structure differences which shown by the ISs of KB-TLL and TBK-TLL in the amount of 52.11% and 51.22%. It’s different with KB-TBK’s ISs index is 43.08 %. Based on the stands structure (amount of individual, DBH size, and height average), it shows the difference among KB (745 individual, DBH 60 cm, and 11.3 m height), TLL (321 individual, DBH 14.97 cm, and 6.76 m height), while TBK (145 individual, DBH 25 cm, and 6.74 m height). Those stands structure also made different biomass density at KB (85.63 ton/Ha), TBK (36.64 ton/Ha), and TLL (33.04 ton/Ha). From the biomass density, the green space’s carbon and CO2 sequestration can be estimated at KB (41.81 tonC/Ha and 309.42 tonCO2/Ha), TBK (18.32 tonC/Ha and 135.57 tonCO2/Ha), and TLL (16.52 tonC/Ha with 122.24 tonCO2/Ha). The analysis shows that the carbon sequestration difference caused by the variance of stands ages, size of tree (DBH), and stands structure value (amount of species and individual).