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Journal : Jurnal Ilmu Pertanian Indonesia

Efektivitas Jalur Hijau Jalan dalam Mengurangi Polutan Gas CO Anisah Nur Izzah; Nizar Nasrullah; Bambang Sulistyantara
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 4 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (384.576 KB) | DOI: 10.18343/jipi.24.4.337

Abstract

Air pollution is a serious problem that increase in almost all countries, including in developed countries. Increasing in air pollution is generally caused by human activity such as transportation. One of dangerous pollutant substances generated by motor vehicles is CO (carbon monoxide) gas. One effort in controlling air pollution is the utilization of green open space in the roadside area. The purpose of this study is to determine the distribution of CO in road side vegetation area and open area. The research was conducted in roadside green belt of Cikampek Highway. Air sampling was conducted to measure the concentration of CO in the distances of 0, 10, and 30 m from green belt area. Concentration of CO was analyzed using a spectrophotometry method. The result showed that vegetation and distance factors significantly affected the distribution of CO gas concentrations.The existance green belt area reduced the distribution of CO pollutant in the vicinity of Cikampek highway. As a result, the plot of vegetation area can effectively reduce the concentration of CO gas by 8.5% compare to open plot area. In this study, the plot of vegetation area at10 and 30 m distances decreased CO concentrations about 14.5 and 23.55%, respectively. In the open plot area, the 10 and 30 m distances from the open plot area decreased CO concentrations by 7.17 and 15.05%, respectively.
Penilaian AHP Jalur Hijau Koridor Transjakarta 8 DKI Jakarta Berdasarkan Fungsi Ekologis Vegetasi Musfira, Lasta; Nasrullah, Nizar; Sulistyantara, Bambang
Jurnal Ilmu Pertanian Indonesia Vol. 29 No. 1 (2024): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.29.1.21

Abstract

Greenbelt and green infrastructure are still very limited in Jakarta. Transjakarta Corridor 8 Harmoni - Lebak Bulus covers Central Jakarta, West Jakarta, and South Jakarta which are government centers and densely populated settlements. The high activity in the area causes an increase in transportation flows and greenhouse gas emissions. The transportation sector is the highest contributor to CO2e emissions in the capital city, thus reducing environmental quality, especially the greenbelt in Transjakarta Corridor 8. The assessment of ecological functions in this study consists of 7 variables, namely noise reduction, pollution reduction, air humidity, view control, glare control, direction and accident prevention. The research location is divided into 5 segments with the analysis method used, namely the assessment of ecological function aspects and the formulation of recommendations based on Hierarchical Process Analysis. The results of the assessment on ecological functions with noise-canceling variables were (Polyalthia longifolia) Glodongan Tiang, (Casuarina sp.) Spruce, (Acacia auriculiformis) Acacia, and (Archontophoenix alexandrae) Alexander Palm. The results of the pollution reduction assessment of each segment are dominated by vegetation types (Mangifera indica) Mango, (Polyalthia longifolia) Glodongan Tiang, (Carbera odollam) Bintaro. Based on the results of the questionnaire, the AHP assessment weight was obtained. The combined AHP results show the highest priority scale for the evaluation recommendations of this research is Pollution Reduction as the most important variable with a weight of 0.348, the second rank is Accident Reducer with a weight of 0.300, the third rank is Glare Control with a weight of 0.150. The combined results of 3 experts produce a consistency ratio value of 0.05, the consistency ratio value of 0.05 is smaller than 0.10 so it can be said to have met the consistent requirements. Keywords: analytical hierarchy process, emission, roadside greenbelt