POTENSI SEDIMEN PADANG LAMUN UNTUK MENYIMPAN KARBON ORGANIK DI TELUK SALEH, NUSA TENGGARA BARAT

ATIKA CAHYA NINGRUM, . (2023) POTENSI SEDIMEN PADANG LAMUN UNTUK MENYIMPAN KARBON ORGANIK DI TELUK SALEH, NUSA TENGGARA BARAT. Sarjana thesis, UNIVERSITAS NEGERI JAKARTA.

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Abstract

*ABSTRAK* Fenomena perubahan iklim telah banyak terjadi di Indonesia, dikarenakan peningkatan suhu permukaan bumi secara terus menerus. Penelitian ini bertujuan untuk mengetahui karakteristik dan komposisi sedimen padang lamun, mengetahui perbandingan rata-rata kandungan karbon organik, dry bulk density (DBD) dan stok karbon sedimen padang lamun Teluk Saleh, mengetahui hubungan antara kandungan karbon organik, DBD, dan stok karbon dan mengetahui potensi padang lamun untuk menyimpan karbon organik pada sedimen Teluk Saleh. Pengambilan data dilakukan menggunakan metode deskriptif, desain penelitian observasi langsung dan teknik pengambilan sampel adalah purposive sampling dan analisis laboratorium dilakukan di Laboratorium Botani Pusat Riset Oseanografi BRIN pada bulan Mei-Juni 2023. Data dianalisis secara deskriptif untuk melihat rata-rata persentase kandungan karbon organik, DBD dan stok karbon sedimen dan analisis secara statistik menggunakan uji Saphiro-Wilk untuk uji normalitas data dan uji korelasi Pearson untuk melihat hubungan antar parameter. Hasil penelitian menunjukkan bahwa sedimen padang lamun Teluk Saleh bertekstur pasir, lumpur dan pasir berlumpur. Sedimen berkomposisi rimpang, kerang dan karang. Rata-rata kandungan karbon organik sedimen sebesar 1,95%, DBD sebesar dan 0,91 g BK cm-3 dan stok karbon sebesar 8,95 Mg Corg ha-1. Nilai kandungan karbon, DBD dan stok karbon pada kedalaman 15-30 cm lebih tinggi dibandingkan dengan kedalaman 0-15 cm. Terdapat hubungan yang positif antara kandungan karbon, DBD terhadap stok karbon dan hubungan yang negatif antara kandungan karbon terhadap DBD. Adanya potensi sedimen padang lamun untuk menyimpan karbon organik pada sedimen. *ABSTRACT* ATIKA CAHYA NINGRUM. The Potential of Seagrass Beds Sediments as a Organic Carbon Storage in Saleh Bay, West Nusa Tenggara. Under supervised by RATNA KOMALA and SUSI RAHMAWATI. Climate change has occured in Indonesia as an effect of the persistent rise in global surface temperatures. This study aimed to determine the characteristics and composition of seagrass sediments, the average ratio of organic carbon content, dry bulk density and carbon stock of seagrass beds in Saleh Bay, the relationship between organic carbon content, dry bulk density and carbon stock, the potential seagrass beds sediments as carbon storage. Data was collected using a descriptive method, the research design was direct observation, and the sampling technique was purposive sampling. Laboratory analysis was conducted at the Botanical Laboratory of the Oceanographic Research Center of BRIN in May-June 2023. Data were analyzed descriptively to see the average percentage of organic carbon content, DBD, and sediment carbon stock, and statistically using the Shapiro-Wilk test to see data normality and the Pearson correlation test to see the relationship between parameters. The results showed that the sediments of the seagrass beds of Saleh Bay had sand, silt and muddy sand textures. The sediment was composed of rhizomes, shells, and coral. The average sediment organic carbon content was 1.95%, DBD was 0.91 g/cm-3 , and carbon stock was 8.95 Mg Corg ha-1 . The organic carbon content, DBD, and carbon stock at a depth of 15-30 cm showed higher values than those observed at 0-15 cm. A positive correlation has been identified between carbon content, DBD, and carbon stocks, while a negative correlation has been identified between carbon content and DBD. There is potential for seagrass sediments in Saleh Bay to store organic carbon. Keywords: organic carbon, Saleh Bay, seagrass beds, sediment,

Item Type:	Thesis (Sarjana)
Additional Information:	1) Dr. Ratna Komala, M.Si 2) Susi Rahmawati, M.Biol.Sc
Subjects:	Geografi, Antropologi > Oceanografi Sains > Sains, Ilmu Pengetahuan Alam
Divisions:	FMIPA > S1 Biologi
Depositing User:	Users 19695 not found.
Date Deposited:	04 Sep 2023 06:26
Last Modified:	04 Sep 2023 06:26
URI:	http://repository.unj.ac.id/id/eprint/40580

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