Aulia, Martha Khusnul (2021) Evaluasi Kecukupan Vegetasi Ruang Terbuka Hijau Sebagai Penyerap Emisi CO₂ Di Kawasan IPLT Keputih Surabaya. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
IPLT Keputih dalam mengolah lumpur tinja dapat menghasilkan gas CO₂ pada proses pengolahan biologis dan truk tinja. Gas CO₂ memberikan kontribusi terbesar terhadap pemanasan global. Vegetasi ruang terbuka hijau merupakan bagian dari mitigasi pemanasan global yang dapat mereduksi gas CO₂. Penelitian ini mengukur konsentrasi CO₂ untuk mendapatkan nilai kumulatif konsentrasi CO₂ (Net_CO₂-Con) dan menetapkan persamaan dari pengaruh vegetasi untuk mereduksi CO₂ di kawasan IPLT Keputih.
Pengukuran konsentrasi CO₂ udara ambien dilakukan selama 12 jam dengan metode grab sample setiap 3 jam sekali pada 15 titik lokasi sampling dan dilakuan selama 6 hari. Metode yang digunakan untuk sampling adalah model box. Selanjutnya menentukan nilai kumulatif CO₂ (Net_CO₂-Con) dari data konsentrasi CO₂ dan melakukan uji korelasi regresi antara proporsi vegetasi dengan nilai KCO₂ untuk mengetahui luasan vegetasi terhadap reduksi CO₂ serta perumusan persamaan vegetasi.
Hasil dari penelitian menunjukkan nilai konsentrasi CO₂ tertinggi terjadi pada pagi hari (06.00) sebesar 588 ppm dan terendah pada siang hari (12.00) sebesar 363 ppm. Nilai kumulatif CO₂ (Net_CO₂-Con) terendah terjadi di titik S2 sebesar -214,56. Semakin besar nilai negatif (-) maka semakin besar serapan yang dilakukan oleh vegetasi. Titik S2 mempunyai proporsi vegetasi sebesar 66,15% dan 33,85% jalan, yang menandakan bahwa vegetasi mampu menyerap emisi CO₂ dengan proses fotosintesis. Hasil uji korelasi antara proporsi vegetasi terhadap nilai KCO₂ sebesar -0,891 artinya memiliki hubungan sangat kuat. Nilai korelasi bertanda negatif (berbanding terbalik) menunjukkan bahwa, jika proporsi vegetasi meningkat maka nilai KCO₂ akan menurun yang menandakan adanya reduksi CO₂ oleh vegetasi yang semakin besar. Hasil uji korelasi proporsi unit pengolahan dengan nilai KCO₂ sebesar 0,8768 artinya memiliki hubungan sangat kuat. Nilai korelasi bertanda positif (berbanding lurus) menunjukkan bahwa, apabila proporsi unit semakin meningkat maka nilai KCO₂ akan meningkat yang artinya reduksi CO₂ oleh vegetasi menjadi rendah. Hasil uji regresi vegetasi dan proporsi unit pengolahan mempunyai pengaruh yang signifikan dengan nilai KCO₂ di kawasan IPLT Keputih Surabaya. Persamaan vegetasi untuk mereduksi CO₂ berdasarkan penggunaan luasan vegetasi di kawasan IPLT Keputih yaitu Net-CO₂ = -118,81 – 99,54 (%proporsi vegetasi).
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Septage treatment plant Keputih Surabaya can produce CO₂ gas when processing fecal sludge in the biological treatment process and fecal truck. CO₂ is the biggest contributor to global warming. Green open space vegetation is part of global warming mitigation that can reduce CO₂ gas. This study measures the CO₂ concentration in order to obtain the cumulative value of CO₂ concentration and determines the equation of the effect of vegetation in reducing CO₂ in septage treatment plant Keputih Surabaya.
CO₂ concentration measurement was conducted for 12 hours using the grab sample method every 3 hours at 15 sampling locations and carried out for 6 days. The method used for sampling is the box model. The cumulative value of CO₂ is determined from CO₂ concentration data and a regression correlation test between the proportion of vegetation and the value of KCO₂ is performed to determine the vegetation area to CO₂ reduction and the formulation of the vegetation equation.
The results of the study showed that the highest CO₂ concentration value occurred in the morning (06.00) at 588 ppm and the lowest in the afternoon (12.00) at 363 ppm. The lowest cumulative value of CO₂ occurred at point S2 of -214.56. The greater the negative value (-), the greater the absorption carried out by the vegetation. Point S2 has a vegetation proportion of 66.15% and roads of 33.85%, which indicates that the vegetation is able to absorb CO₂ emissions by photosynthesis. The results of the correlation test between the proportion of vegetation to the KCO₂ value of -0.891 means that it has a very strong relationship. The negative correlation value indicates that if the proportion of vegetation increases, the value of KCO₂ will decrease which indicates that a CO₂ reduction by vegetation is getting bigger. The results of the correlation test of the proportion of processing units with a KCO₂ value of 0.8768 means that it has a very strong relationship. The positive correlation value indicates that if the proportion of units increases, the value of KCO₂ will increase, which means that the reduction of CO₂ by vegetation will be low. The results of the vegetation regression test and the proportion of processing units have a significant effect on the value of KCO₂ in septage treatment plant Keputih Surabaya. The vegetation equation for reducing CO₂ based on proportion of vegetation in septage treatment plant Keputih is Net-CO₂ = -118,81 – 99,54 (%proportion of vegetation).
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | emisi CO₂, IPLT, model box, Net_CO₂-Con, vegetasi, ruang terbuka hijau, CO₂ emission, septage treatment plant, model box, Net_CO₂-Con, vegetation, open green space |
| Subjects: | H Social Sciences > HA Statistics > HA30.3 Time-series analysis H Social Sciences > HA Statistics > HA31.3 Regression. Correlation H Social Sciences > HD Industries. Land use. Labor > HD618 Open spaces |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25201-(S1) Undergraduate Thesis |
| Depositing User: | Martha Khusnul Aulia |
| Date Deposited: | 09 Aug 2021 02:16 |
| Last Modified: | 09 Aug 2021 02:16 |
| URI: | http://repository.its.ac.id/id/eprint/85181 |
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