Geosfera Indonesia
Vol 7 No 3 (2022): GEOSFERA INDONESIA

Utilization of Sentinel-2 Imagery in Mapping the Distribution and Estimation of Mangroves' Carbon Stocks in Bengkulu City

Ayub Sugara (Department of Marine Science, Faculty of Agriculture, Bengkulu University, Jl. WR 7 Supratman, Kandang Limun, Bengkulu, 38371, Indonesia)
Agung H. Lukman (Department of Forestry, Faculty of Agriculture, Bengkulu University, Jl. WR 7 Supratman, Kandang Limun, Bengkulu, 38371, Indonesia)
Aninda W. Rudiastuti (Research Center for Geospatial, National Research and Innovation Agency (BRIN), Cibinong Science Center, Jl. Raya Bogor Km. 46 Cibinong, Bogor, 16911, Indonesia)
Ari Anggoro (Department of Marine Science, Faculty of Agriculture, Bengkulu University, Jl. WR 7 Supratman, Kandang Limun, Bengkulu, 38371, Indonesia)
Muhammad F. Hidayat (Department of Forestry, Faculty of Agriculture, Bengkulu University, Jl. WR 7 Supratman, Kandang Limun, Bengkulu, 38371, Indonesia)
Feri Nugroho (Department of Digital Business, Faculty of Economics and Business, Jakarta Global University, Depok, 16412, Indonesia)
Ali M. Muslih (Department of Forestry, Faculty of Agriculture, Universitas Syiah Kuala, Jl. Teuku Nyak Arief Darussalam-Banda Aceh, 23111, Indonesia)
An Nisa N. Suci (Department of Marine Science, Faculty of Agriculture, Bengkulu University, Jl. WR 7 Supratman, Kandang Limun, Bengkulu, 38371, Indonesia)
Rifi Zulhendri (Lembaga Lestari Alam Laut Untuk Negeri (LATUN), Jl. Bencoolen Kebun Keling, Teluk Segara District, Bengkulu, 38116, Indonesia)
Marissa Rahmania (Department of Information Management, Management, National Chin-Yi University of Technology, No. 11, Lane 243, Section 1, Zhongshan Road, Taiping District, Taichung City, 41171, Taiwan)



Article Info

Publish Date
24 Dec 2022

Abstract

The mangroves' aboveground biomass significantly contributes to the global carbon cycle or economic and ecological values. This makes knowledge about the spatial extent of the mangroves indispensable for policymakers. The sequence of mangroves’ condition range also requires remote sensing data to update the geographical information and synthesize carbon stock in Bengkulu. Therefore, this study aims to create a spatial distrribution of mangroves and evaluate their carbon stock in Bengkulu City using Sentinel-2 imagery. The semi-empirical method uses Sentinel-2 imagery through NDVI to appraise and picture the mangroves' aboveground carbon stock. An allometric equation was used to compute the mangroves' aboveground carbon stock from field measurements. Non-linear regression was used to establish a connection between the NDVI calculated from the Sentinel-2 imagery and the mangroves' aboveground biomass measured in the field, which was subsequently used for aboveground carbon estimation. The results showed that mangroves mapping could derive overall accuracy of 89.09%, where the high-density class existed in 135.12 Ha of total area. It was also discovered that Sentinel-2 imagery could estimate mangroves carbon stock up to 61%. The carbon stock estimation based on the imagery has a value of 16.3992 – 115.134 t C/ha, while that of field survey data ranges from 19.69 to 326.06 t C/ha. These results showed that Sentinel-2B spectral data is functional and has a good chance of being able to predict carbon stock. Keywords : Carbon; mangroves; NDVI; remote sensing; sentinel-2B Copyright (c) 2022 Geosfera Indonesia and Department of Geography Education, University of Jember This work is licensed under a Creative Commons Attribution-Share A like 4.0 International License

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Journal Info

Abbrev

GEOSI

Publisher

Subject

Earth & Planetary Sciences Environmental Science Social Sciences

Description

Geosfera Indonesia : | ISSN: 2598-9723 (Print)| ISSN: 2614-8528 (Online) is published by Department of Geography Education, University of Jember, Indonesia. We accept mainly research-based articles related to geography. Geosfera Indonesia welcomes contributions in such areas of current analysis in: ...