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All Journal Jurnal Teknologi Perikanan dan Kelautan ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua
Woda, Marianus Raymond Roky
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Agriculture, Biological Sciences & Forestry Education Library & Information Science

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Estimasi Stok Biomassa Karbon Mangrove Menggunakan Citra Satelit Sentinel-2A di Teluk Maumere Bagian Barat Vincentius, Angelinus; Parera, Guido Roberto Jerun; Woda, Marianus Raymond Roky
ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua Vol 7 No 2 (2024): ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua
Publisher : Cenderawasih University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31957/acr.v7i2.4282

Abstract

Ekosistem mangrove di wilayah pesisir memiliki kemampuan menyimpan karbon dalam jumlah besar pada biomassa tegakan. Teluk Maumere bagian barat di Kabupaten Sikka Provinsi NTT memiliki 2 lokasi sentra mangrove yaitu Magepanda dan Kampung Garam. Ekosistem mangrove perlu dijaga dan dipertahankan karena bernilai ekonomis dan ekologis. Namun cadangan karbon yang saat ini tersimpan pada mangrove tersebut belum diketahui jumlahnya karena tidak adanya data inventarisasi mengenai hal tersebut. Penelitian ini bertujuan untuk mengestimasi cadangan karbon di atas permukaan pada hutan mangrove di Teluk Maumere bagian barat dengan menggunakan citra Sentinel-2A. Penelitian dimulai bulan Juni 2024 sampai September 2024. Nilai cadangan karbon diperoleh dari persamaan regresi berdasarkan data indeks vegetasi NDVI (Normalized Difference Vegetation Index) dan cadangan karbon aktual berdasarkan persamaan alometrik (above ground biomass). Penentuan titik sampel menggunakan teknik stratified sampling. Jumlah titik sampel sebanyak 16 titik, berupa plot berukuran 10x10 m2. Analisis data pada penelitian ini menggunakan analisis regresi linear, polinomial, eksponensial, dan uji akurasi. Hasil analisis regresi menunjukkan bahwa persamaan regresi polinomial menghasilkan nilai koefisien determinasi (R2) yang paling tinggi yaitu sebesar 0,8574 sehingga dipilih sebagai model penduga atau estimasi stok karbon permukaan. Persamaan regresi polinomial y = -255,61x2 + 494,84x – 154,45 dimana y adalah karbon dan x adalah nilai NDVI. Indeks vegetasi NDVI mempunyai korelasi yang erat dengan cadangan karbon sebesar 85,74% (R² = 0,8574). Luas hamparan mangrove sebesar 100,82 ha. Total cadangan karbon di atas permukaan pada tegakan mangrove di Teluk Maumere bagian barat mencapai 5.860,59 ton C dengan nilai rata-rata sebesar 58,13 ton C/ha.
MANGROVE CARBON BIOMASS POTENCY THROUGH SATELLITE IMAGE ANALYSIS IN THE EASTERN AREA OF MAUMERE BAY: POTENSI BIOMASSA KARBON EKOSISTEM MANGROVE MELALUI ANALISIS CITRA SATELIT DI KAWASAN TIMUR TELUK MAUMERE Vincentius, Angelinus; Parera, Guido Roberto Jerun; Woda, Marianus Raymond Roky
Jurnal Teknologi Perikanan dan Kelautan Vol 16 No 4 (2025): NOVEMBER 2025
Publisher : Fakultas Perikanan dan Ilmu Kelautan, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24319/jtpk.16.370-383

Abstract

Mangrove ecosystems can store significant amounts of carbon in their standing biomass. The eastern part of Maumere Bay contains mangrove areas that are important because of their economic and ecological value. The amount of carbon stored in the mangroves is unknown due to the lack of inventory data. The objective of this study is to obtain estimated surface carbon biomass stocks in the mangrove forests in the eastern part of Maumere Bay using Sentinel-2A imagery. The study was conducted from June to September 2024. Carbon stock values ​​were obtained using the Normalized Difference Vegetation Index (NDVI) analysis method. Actual carbon stocks in surface biomass were obtained from the allometric equation. A stratified sampling method was applied to determine 18 sample spots, each with a size of 10×10 m2. Data was analyzed using accuracy tests and linear, polynomial, and exponential regression. The results of the regression analysis show that the exponential regression equation has the highest coefficient of determination (R2) value, namely 0.8373, with the highest accuracy. Therefore, the exponential regression equation was accepted as a model for estimating surface carbon stocks. The NDVI vegetation index has a strong correlation with carbon stocks of 83.73% (R2 = 0.8373). The exponential equation is y = 13.637e2.0499x, which reflects natural growth patterns where y is the carbon value and x is the NDVI value. The mangrove area covers 527.93 ha. The total aboveground carbon stock amounts to 29,760.52 tons of carbon, with an average value of 56.34 tons of carbon per hectare.
Co-Authors Guido Roberto Jerun Parera Vincentius, Angelinus