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Sekarsari Wibowo
Politeknik Perkapalan Negeri Surabaya
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Engineering Public Health Social Sciences

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Biodiversity’s Impact on Greenhouse Gas Emission Reduction at PT Pabrik Kertas Tjiwi Kimia Tbk: Pengaruh Keanekaragaman Hayati terhadap Penurunan Emisi Gas Rumah Kaca di PT Pabrik Kertas Tjiwi Kimia Tbk Niken Kartika Nahdya Rokhimanillah; R. Mohammad Alghaf Dienullah; Sekarsari Wibowo; Abdillah Akmal Karami
JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Vol. 10 No. 3 (2026): Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Publisher : DPD Jatim Perkumpulan Dosen Indonesia Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36339/je.v10i3.547

Abstract

Increasing greenhouse gas (GHG) emissions from industrial activities have become a serious environmental concern, making carbon sequestration through vegetation an important mitigation strategy, particularly in industrial areas where green open spaces serve as natural carbon sinks. This applied study analyzed the influence of biodiversity on GHG emission reduction through vegetation carbon stock estimation across four strata, namely trees, poles, saplings, and undergrowth, in the Mill area (estimated 10 Ha) and Conservation area (3.52 Ha), using an allometric approach from literature converted into tCO₂e, with statistical analysis conducted using the Spearman correlation test and Kruskal-Wallis test due to non-normal data distribution and small sample size. The highest carbon sequestration was recorded in the tree strata at 147.996 tCO₂e (90.7% of total), while the lowest was recorded in the undergrowth strata at 2.190 tCO₂e in the Mill area, with total sequestration of 163.032 tCO₂e in the Mill area and 20,233 tCO₂e in the Conservation area. The results of this applied study concluded that vegetation effectiveness in reducing GHG emissions is more determined by biomass accumulation rather than species diversity, as evidenced by the dominance of a single species (trembesi) contributing significantly to carbon stocks. Greening strategies should prioritize planting high-biomass vegetation such as trembesi (Samanea saman), mahogany (Swietenia mahagoni), and acacia (Acacia mangium), and be integrated with other emission reduction efforts such as energy efficiency and carbon capture technology.
Waste Segregation Program Evaluation in Improving Domestic Waste Management Effectiveness at PT Pabrik Kertas Tjiwi Kimia Tbk: Evaluasi Program Pemilahan Sampah dalam Meningkatkan Efektivitas Pengelolaan Sampah Domestik Di PT Pabrik Kertas Tjiwi Kimia Tbk Tiara Salsabilla Prabasari; R. Mohammad Alghaf Dienullah; Sekarsari Wibowo; Abdillah Akmal Karami
JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Vol. 10 No. 3 (2026): Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Publisher : DPD Jatim Perkumpulan Dosen Indonesia Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36339/je.v10i3.548

Abstract

Domestic waste management in the industrial sector requires an effective system, one of which begins with waste sorting at source. This applied study aims to evaluate the compliance of the waste sorting program in the paper industry with existing regulations. The method used is descriptive qualitative through field observations, waste inventory data and literature studies, and refers to applicable regulations. The study results indicate that the waste generated consists of organic, inorganic, and residual waste that has been sorted and managed according to its characteristics. Waste utilization is carried out through processing in the RDF (Refuse Derived Fuel) boiler, maggot feed, and internal and external recycling. This program contributes to increasing management efficiency and reducing waste to the Final Processing Site. Optimization is still needed through increasing consistency of sorting and participation of all parties to support sustainable waste management.
Co-Authors Abdillah Akmal Karami Niken Kartika Nahdya Rokhimanillah R. Mohammad Alghaf Dienullah Tiara Salsabilla Prabasari