Deteksi Perubahan Spatiotemporal Penyimpanan dan Penyerapan Karbon dengan Mengintegrasikan Google Earth Engine dan Model InVEST

Abstract

Perubahan iklim merupakan isu lingkungan yang dihadapi dunia saat ini. Beberapa faktor penyebabnya adalah perubahan tutupan lahan dan pemanasan global. Penelitian bertujuan menganalisis perubahan, proyeksi, estimasi simpanan dan serapan karbon di Kabupaten-Kota Bogor secara spatiotemporal. Metode yang dilakukan meliputi land cover classification, land cover projection, dan post processing. Hasil penelitian didapatkan bahwa tahun 2013?2023 hutan di Kabupaten-Kota Bogor mengalami penurunan sebesar 16.733 ha dan peningkatan tertinggi lahan terbangun sebesar 21.935 ha. Proyeksi tutupan lahan tahun 2034 menggunakan Molusce menunjukkan hutan mengalami penurunan sebesar 15.659 ha. Sementara itu, lahan terbangun bertambah seluas 6.535 ha. Pelepasan karbon terbesar pada saat luas tutupan lahan hutan berkurang 15.659 ha dengan melepaskan 4,4 juta ton karbon. Sebaliknya, serapan karbon tertinggi terjadi ketika luas tutupan lahan kebun campuran bertambah 7.264 ha dengan laju serapan 4,8 ton C/ha/tahun. Perubahan tutupan lahan berpengaruh terhadap simpanan karbon di Kabupaten Kota Bogor tahun 2013?2034 sebesar 8,5 juta ton karbon atau 31,1 juta ton CO2e.

Climate change is an environmental issue facing the world today. Some of the contributing factors are land cover change and global warming. The research aims to analyze changes, predictions, estimation of carbon storage and sequestration in Bogor Regency-City spatiotemporally. The methods used include land cover classification, land cover projection, and post-processing. The results showed that from 2013?2023, forests in Bogor Regency-City decreased by 16.733 ha and the highest increase in built-up land was 21.935 ha. Prediction of land cover in 2034 using Molusce showed that forests decreased by 15.659 ha. Meanwhile, built-up land increased by 6.535 ha. The largest carbon release occurs when forest land cover decreases by 15.659 ha, releasing 4,4 million tons of carbon. Conversely, the highest carbon sequestration occurred when the land cover area of mixed garden increased by 7.264 ha with a sequestration rate of 4,8 tons C/ha/year. Land cover change affects carbon storage in the Bogor Regency-City in 2013-2034 by 8,5 million tons of carbon or 31,1 million tons of CO2eq