ESTIMASI KARBON TERSIMPAN PADA Avicennia marina DI HUTAN MANGROVE DESA SENTEBANG KECAMATAN JAWAI KABUPATEN SAMBAS

Abstract

The increasing content of carbon dioxide (CO₂) and the reduction in forest area as a CO₂ absorber in the atmosphere are the causes of global warming. One solution to reduce the CO₂ content in the atmosphere is through the development or improvement of forest vegetation. Mangrove forests are considered to be able to absorb carbon quite well through the process of photosynthesis. The purpose of this study was to estimate standing carbon storage in mangroves in Sentebang Village, Jawai District, Sambas Regency. This research was conducted using a survey method with a non-destructive sampling approach. Data collection was done by making 55 observation plots. The tree observation plots were made measuring 10 m x 10 m with a distance between plots on a 30 m line. Each plot was measured with a tree diameter of 5 cm. From the results of the study, it was found that one type of mangrove with a diameter of 5 cm was Avicennia marina. From the results of the study, the above ground biomass was 293,31 ton/ha and root biomass was 177,87 tons/ha. As well as the estimated above-ground carbon of 137,56 ton/ha and root carbon of 83,60 ton/ha. As well as obtaining CO2 absorption of 811,69 ton/ha.

Keywords: carbon,  global warming, mangrove, stored carbon

Abstrak

Meningkatnya kandungan karbondioksida (CO₂) serta berkurangnya luas hutan sebagai penyerap CO₂ di atmosfer merupakan penyebab pemanasan global. Salah satu solusi untuk menurunkan kandungan CO₂ di atmosfer adalah melalui pembangunan atau perbaikan vegetasi hutan. Hutan mangrove dianggap dapat menyerap karbon cukup baik melalui proses fotosintesis. Tujuan penelitian ini yaitu mengestimasi simpanan karbon tegakan pada mangrove di Desa Sentebang Kecamatan Jawai Kabupaten Sambas. Penelitian ini dilakukan dengan metode non destructive sampling. Pengambilan data dilakukan dengan membuat 55 petak pengamatan. Petak pengamatan dibuat berukuran 10 m x 10 m dengan jarak antar petak pada jalur 30 m. Setiap petak dilakukan pengukuran diameter pohon ≥ 5 cm. Hasil penelitian ditemukan satu jenis mangrove yang memiliki diameter ≥  5 cm yaitu Avicennia marina. Hasil penelitian diperoleh biomassa di atas permukaan tanah sebesar 293,31 ton/ha dan biomassa akar sebesar 177,87 ton/ha. Serta estimasi karbon di atas permukaan tanah sebesar 137,56 ton/ha dan karbon akar sebesar 83,60 ton/ha. Serta memperoleh serapan CO₂ sebesar 811,69 ton/ha.

Kata Kunci : karbon, pemanasan global, mangrove, karbon tersimpan