THE ECOLOGICAL ROLE ANALYSIS OF URBAN PARKS VEGETATION IN REMOVAL AIR POLLUTION

• Main Author: Rahmi, Yunfika
• Format: Theses
• Language: Indonesia
• Subjects: Teknik saniter dan perkotaan; teknik perlindungan lingkungan
• Online Access: https://digilib.itb.ac.id/gdl/view/54403
• Institution: Institut Teknologi Bandung

Air pollution is an eminent global issue that affects to human health. One of mitigation actions to overcome air pollution problem is by planting some vegetation in area that has probability become source of pollution. An assessment is requiring to know the suitability of vegetation that has a function on air pollution removal. To conducting the assessment, various types of plants are needed so that urban park become a selected area as research place. The aim of this research was to determine structure and composition of vegetation in urban parks, determine best morphological characters that suitable in absorbing air pollutant, and determine vegetation in reduce temperature in around of the park. The result of important value index shows that there are ten species who has the largest index value as in Swietenia macrophylla, Swietenia mahagoni, Tabebuia aurea, Cassia fistula, Pinus merkusii, Terminalia mantaly, Albizia saman, Filicium decipiens, Ficus bejamina, and Pithecellobium dulce. This index related to the dominant composition in urban parks. Based on the key performance index, the morphological characters that support on absorb air pollution are the presence of trichomes, needle-shape leaves, rough stem, canopy shade, leaf thinness, spacing, and number of leaves. Morphological characters are support vegetation to absorb air pollution. The i-Tree Eco result shows that vegetation in urban parks can absorb NO2 around 1417,9 kg/year, O3 around 108,6 kg/year, PM2,5 around 1,301 kg/year, SO2 around 8,865 kg/year, and CO around 11,85 kg/year. In addition, the ENVI-met result shows that the presence of vegetation can reduce temperature around 0,84-2,14oC in the morning, 0,4-1,52oC during the day, and 0,4-4,88oC in the afternoon. The simulation of ENVI-met has good accuracy. It showed in MAPE value around 1,3-7,8%, MSE value range 0,3-6,9 and MAD value range 0,36-2,32%. From the research, it was found that vegetation can help air pollution removal and reduce temperature to comfortable temperature in one area.