Economic valuation on carbon sequestration and carbon stocks at green open space based on cost of illness

Abstract

Green open space is an open area to grow plants that functions as a balancer to urban ecosystems. Unfortunately, the condition of the green open space has declined and impact on human health at a certain level. This study aims to measure the value of ecosystem services for carbon sequestration and stock based on Cost of Illness (COI). The study was conducted at Tegalega, sub area of Bandung City, which is the most populous area in Bandung. Data collection was carried out in two activites. The tree data collection was done by sampling as much as 15%. On the other hand, the health problem data collection was done through interviews with COI method. The results showed that the potential of green open space in absorbing carbon was 126,321.96 kg CO2.hectare-1.year-1 and carbon stocks in current green open space were 47,319 kg.hectare-1. The value of COI from the availability of curent green open space is IDR 288,777,324,987 per year. This value shows the high costs of health that caused by carbon pollution to human in a certain area. The average value of one tree with the service of absorbing and storing carbon is IDR 1,236,566,136.