Mapping of mangrove forest and carbon stock estimation of east coast Surabaya, Indonesia

Abstract

Abstract. Hidayah Z, Rachman HA, As-Syakur AR. 2022. Mapping of mangrove forest and carbon stock estimation of east coast Surabaya, Indonesia. Biodiversitas 23: 4826-4837. The mangrove forests on Surabaya's east coast are an important protected area, providing habitat for a variety of marine organisms and water birds. This area is also vital for carbon storage and sequestration. The purpose of this research is to determine the changes in mangrove areas over the last 20 years and to calculate the amount of carbon stored in these mangrove forests. Changes in the area of mangrove forests and Normalized Difference Vegetation Indices (NDVI) were determined using Landsat-7 in 2000 and Landsat-8 in 2020. The vegetative carbon stock of mangrove stands was calculated using allometric measurements. The study results reveal that the mangrove forest area has increased significantly from 257.13 ha in 2000 to 753.48 ha in 2020. The results of regression models also show that NDVI has a significant influence on aboveground biomass (AGB), as indicated by the coefficient of determination (R2) = 0.7 (F test, df = 28, p-value < 0.05). The estimated aboveground and belowground carbon stock is 46.35 ± 13.65 ton C ha-1 and 13.65 ± 6.74 ton C ha-1 respectively. Accordingly, it is observed that the mangrove forest of East Coast Surabaya can sequester at least a total of 192.72 tons CO2 ha-1 in above and belowground biomass.

Mapping mangrove above ground carbon stock of benoa bay bali using sentinel-1 satellite imagery

“…The carbon stock in the mangrove forests of Benoa Bay Bali, however, is significantly lower when compared to natural mangrove forests in relatively undisturbed environments. Figure 4 compares carbon stocks from other locations in Indonesia and other Asian countries [3,20,21,[23][24][25][26][27][28]…”

“…These coastal forests are highly efficient at capturing and storing carbon dioxide from the atmosphere, making them important carbon sinks. Studies have shown that mangrove carbon stocks vary across different regions and countries [3,34]. Global patterns indicate that mangrove carbon stocks are higher in the tropics compared to temperate regions.…”

“…Photosynthesis absorbs CO2 gas from the atmosphere and stores it as organic matter in the form of plant biomass. The amount of organic matter stored in mangrove biomass per unit area and per period of time is the basis of mangrove forests' carbon-storage productivity [3]. Despite accounting for less than 2% of marine environments, mangroves are responsible for 10 to 15% of global carbon burial [4].…”

Distribution and changes in mangrove area using satellite imagery of Landsat 8 OLI TIRS

“…Kondisi ini dapat disebabkan oleh beberapa faktor seperti kegiatan akuakultur, pertanian, pembangunan perkotaan serta kegiatan antropogenik lainnya. Dengan laju deforestasi yang terus meningkat, menunjukkan perlu adanya informasi cepat, akurat dan terkini terkait kondisi mangrove (Anwar et al 2021;Hidayah et al 2022). Salah satunya mengenai sebaran dan perubahan luas vegetasi mangrove (Husnayaen et al 2023).…”

Aboveground Biomass Estimation of Mangrove Ecosystem in the Anambas Islands Using Remote Sensing Data

“…They play a pivotal role in delivering a diverse set of benefits spanning ecological, social and economic benefits [1][2], including coastal protection from surges and waves, water filtration, a food source and nursery for fish and crustaceans, as well as a source of wood fuel, and opportunities for nature-based recreation [3][4][5][6]. Mangroves, being the only woody halophytes [7], have a crucial role in carbon storage within the context of climate change [8][9]. They are capable of storing organic carbon as sediment for extended periods and can also utilize carbon in the form of organic compounds [10][11].…”