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Asyifa, Nuraulia
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Engineering Environmental Science Social Sciences

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Nilai Ekonomi Jasa Penyerbukan pada Perkebunan Kopi Robusta Asyifa, Nuraulia; Wijayanti, Pini; Ismail, Ahyar
Jurnal Ilmu Lingkungan Vol 23, No 1 (2025): January 2025
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.23.1.247-257

Abstract

Lebah berkontribusi terhadap pasokan makanan global sebagai penyerbukan berbagai tanaman, termasuk hortikultura, tanaman pangan, dan lainnya. Keberadaan lebah dan fungsinya sebagai penyerbuk menghadapi banyak tantangan seperti perubahan iklim dan teknik budidaya yang belum berkelanjutan. Pentingnya keberadaan serangga penyerbuk dan nilai ekonomi jasa penyerbukan penting diungkap untuk digunakan sebagai instrumen penetapan program oleh pemerintah, yaitu pengembangan strategi produksi kopi berkelanjutan serta promosi dan pemeliharaan ekosistem. Penelitian ini bertujuan untuk mengestimasi nilai ekonomi jasa penyerbukan pada sistem agroforestri dan non agroforestri perkebunan kopi robusta. Nilai ekonomi jasa penyerbukan diungkap dengan metode Contingent Valuation Method (CVM) untuk mengestimasi nilai Willingness to Pay (WTP) petani kopi terhadap program tree island. Nilai ekonomi jasa ekosistem direpresentasikan oleh nilai rata-rata WTP petani kopi robusta sistem agroforestri dan non agroforestri terhadap program tree island secara berturut-turut ialah Rp21.097.686 ha/tahun dan Rp8.978.355 ha/tahun.
Potensi Emisi Gas Rumah Kaca dari TPA Galuga dan Kelayakan Finansial Teknologi RDF Asyifa, Nuraulia; Wijayanti, Pini
Jurnal Sosioteknologi Vol. 24 No. 1 (2025): MARCH 2025
Publisher : Fakultas Seni Rupa dan Desain ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/sostek.itbj.2025.24.1.7

Abstract

Many cities are confronting significant challenges due to the rising volume of waste. This surge in waste generation not only risks overcapacity but also contributes to increased greenhouse gas (GHG) emissions. This study aims to estimate the amount of waste directed to the Galuga landfill, evaluate the potential GHG emissions resulting from the landfill, and analyze the financial viability of implementing Refuse DerivedFuel (RDF) technology, which has the potential to reduce waste volumes. This research employs three key methods: 1) Multiple Linear Regression (MLR) to identify the factors that influence waste generation, 2) the IPCC guidelines for National Greenhouse Gas Inventories Volume 5 to estimate potential greenhouse gas emissions, and 3) a financial feasibility analysis to evaluate the viability of implementing RDF technology.The results show that the volume of waste directed to the Galuga landfill in 2022 was 195,787.10 tons, with a projected increase of 2.43% by 2030, bringing the total to 200,544.26 tons. The potential greenhouse gas (GHG) emissions from waste generated at the Galuga landfill are estimated to be 109 kt CO2e in 2030, reflecting a decrease of 29.48% compared to 2022. Furthermore, the plan to implement RDF technologyis deemed financially viable, as it fulfills the necessary criteria for Net Present Value (NPV), Internal Rate of Return (IRR), Benefit-Cost (B/C) Ratio, and Payback Period. Therefore, the governments may introduce various incentives to promote the adoption of RDF technology, stricter waste segregation is essential for better RDF quality, and attracting private investment through PPPs can enhance RDF infrastructure.
Co-Authors Ahyar Ismail Pini Wijayanti