Analysis of impact of city forest utilization to improvement of envirovment qualty in Serang City

Serang city is the capital city of Banten province surrounded by cities and counties nearby. At this time serang city has become center of activities and migration of the counties nearits that cause the past population growth. This of course will affect to the building both physical and non physical ones. At the same time environment problem increases too, such as the height of temperature , the increase of air pollution, trafkic jam, the decrease of water quality. One of the ways of handling the problems is bye keeping and developing green open space, that will become city forest. This research is to find out the potency of the impact of city forest management to envirounment in Serang city, like air quality. CO2 decrease, noise, moisture, and potency of carbon as well as potency of water absorbance. Research methodoly used is using primary data of environmental quality test in fivelocation in Serang city which is placed near the city forest area to colculate the potency of carbon absorbance using formula of biomassa tree calcution which is calculated based on the ability of plantation water absorbance. The research show that the value of physical environment in city forest area is better than the condition of physical environment which is forer from the city forest