WIDYAKUSUMAH, ILYAS (2023) ANALISIS SIMPANAN KARBON PADA TEGAKAN MANGROVE DAN SEDIMEN MANGROVE DI PULAU KARIMUNJAWA, KABUPATEN JEPARA (23dik378). Undergraduate thesis, Fakultas Perikanan dan Ilmu Kelautan.

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Abstract

ABSTRAK
(Ilyas Widyakusumah. 26040119130070. Analisis Simpanan Karbon pada Tegakan Mangrove dan Sedimen Mangrove di Pulau Karimunjawa, Kabupaten Jepara. Rudhi Pribadi dan Diah Permata Wijayanti).
Ekosistem mangrove mempunyai peran sebagai cadangan paru-paru bumi, karena memiliki daya serap CO2 yang lebih tinggi dibandingkan hutan hujan tropis, rawa gambut, rawa asin, dan padang lamun. Karbon tersebut dapat diserap oleh mangrove melalui beberapa bagian seperti batang, daun, dan sedimen. Penelitian ini dilakukan untuk mengetahui kandungan karbon pada tegakan dan sedimen mangrove. Penelitian ini dilaksanakan pada November 2022 di kawasan Hutan Mangrove Pulau Karimunjawa. Parameter yang dianalisis dalam penelitian ini adalah biomassa tegakan mangrove, karbon tegakan mangrove, dan karbon sedimen mangrove. Data karbon tegakan mangrove diolah menggunakan data diameter pohon yang diambil langsung di lapangan, sedangkan data karbon sedimen mangrove diolah dari hasil uji laboratorium menggunakan metode furnace dengan sampel sedimen yang diambil langsung dari lapangan dengan kedalaman tanah sebesar 5-10 cm. Hasil analisis sampel menunjukan bahwa Hutan Mangrove di Pulau Karimunjawa mempunyai nilai biomassa tegakan di atas permukaan ,dan di bawah permukaan berturut-turut sebesar 68,76 (96,7-28,2) ton/ha dan 21,16 (29,6- 9,51) ton/ha, nilai simpanan karbon tegakan di atas permukaan dan di bawah permukaan berturut-turut sebesar 31,63 (44,5-12,9) ton/ha dan 7 (11,5-3,71) ton/ha, nilai simpanan karbon sedimen sebesar 15,9 (17,1-15,2) ton/ha. Stasiun dengan simpanan karbon tertinggi mempunyai ukuran pohon dan tutupan pohon yang tinggi, stasiun tersebut juga tidak dilalui sungai sehingga proses distribusi sedimen jauh lebih lambat.
Kata Kunci: Simpanan Karbon, Biomassa Tegakan, Sedimen, Mangrove, Karimunjawa

ABSTRACT
(Ilyas Widyakusumah. 26040119130070. Analysis of Carbon Stock of Aboveground Mangrove and Mangrove Sediments in Karimunjawa Island, Jepara Regency. Rudhi Pribadi and Diah Permata Wijayanti).
Mangrove ecosystems have a role as a reserve of the earth’s lungs, because their ability to absorb CO2 is higher than tropical rain forests, peat swamps, salt marshes and seagrass beds. This carbon can be absorbed by mangroves through several parts such as stems, leaves and sediment. This research was conducted to determine the carbon content in mangrove trees and sediment. This research was conducted in November 2022 in the Mangrove Forest area of Karimunjawa Island. The parameters analyzed in this study were mangrove trees biomass, mangrove trees carbon and mangrove sediment carbon. The mangrove trees carbon data is processed using tree trunk’s diameter data taken directly in the field, while the mangrove sediment carbon data is processed from the results of laboratory test using the furnace method with sediment samples taken directly from the field with a soil depth of 5-10 cm. the results of sample analysis showed that Mangrove Forests on Karimunjawa Island had aboveground and belowground trees biomass values of 68,76 (96,7-28,2) tonnes/ha and 21,16 (29,6-9,51) tonnes/ha, the value of aboveground and belowgroung trees carbon stocks is 31,63 (44,5-12,9) and 7 (11,5-3,71) tonnes/ha, the sediment carbon stocks value is 15,9 (17,1-15,2) tonnes/ha. The highest carbon stocks area have a high tree size and tree cover and it also not traversed by the rivers so the sediment distribution process is much slower.
Keywords: Carbon Stock, Tree Biomass, Sediment, Mangrove, Karimunjawa

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