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All Journal Jurnal Pembelajaran dan Biologi Nukleus
Bambang Hendra Siswoyo
Faculty of Fisheries, Dharmawangsa University, Jalan. KL. Yos Sudarso No.224, Medan, North Sumatra, 20115, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media

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Carbon Estimation in Mangrove Forests of The East Coast of North Sumatra Bambang Hendra Siswoyo; Siti Mardiana; Raja Sabrina
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i1.6405

Abstract

Mangrove forests are important ecosystems, providing various ecological, economic, and social benefits. They serve as habitats for a wide range of species, act as natural barriers against coastal erosion, and play a key role in carbon sequestration, which helps to reduce the impacts of climate change. This study used surveys to tree biomass growth and quantify the carbon stocks trapped in this ecosystem. The methodology applied in measuring carbon in mangrove forests is similar to that used in primary forests, although some unique aspects need to be considered, such as the accumulation of non-biodegradable debris. Aspects that need to be considered, such as litter accumulation cannot be included in technical carbon calculations. included in technical carbon calculations. The condition of mangrove forests in North Sumatra shows a significant decline, with a 61.21% significant decline, with a in primary mangrove area between 1990 to 2015, mainly due to land conversion for aquaculture and agriculture. Carbon sequestration in mangrove forests is crucial to mitigating climate change, with their capacity to store carbon in biomass and sediment. Rehabilitation efforts, such as propagation planting and seedlings, showed expected survival rates and large carbon storage potential, with total carbon stocks reaching 558.07 mgC ha-1. It is important to understand carbon storage dynamics and influencing factors, such as duration and nutrient inputs, for effective management and conservation strategies
Mangrove Ecosystem Condition at Three Regency on The East Coast of North Sumatra: A Review Bambang Hendra Siswoyo; Siti Mardiana; Raja Sabrina
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i2.5679

Abstract

This study aims to analyze the condition of mangrove ecosystems in the three districts on the east coast of North Sumatra. Data collection was carried out from June to December 2023 in the Deli Serdang, Serdang Bedagai, and Langkat districts. The sampling location was determined by purposive sampling, and the target location was a mangrove area that had aquaculture activities. There were 9 sampling points, 3 points each in each district. Observations were made using a 10 x 10 m quadratic transect method with 20 replications. Density, relative density, frequency, relative frequency, dominance, and relative dominance were calculated to obtain the importance index value of each species. The calculation results showed that Rhizopohora apiculata with a density of 2359-4208 ind/ha with a relative density between 43.7-48.8%. The highest frequency and relative frequency values are also in R. apiculata, and R. mucronata species between 0.67 - 1 with a relative frequency between 25 - 44.4%. The highest species dominance and relative dominance of R.apiculata was 0.000010272 - 0.00001105, with a relative dominance of 23.07 - 40.25%. Therefore, these two species are the species with the highest importance index >65%.
Co-Authors Raja Sabrina Raja Sabrina Siti Mardiana Siti Mardiana