Harnessing Biomass and Blue Carbon Potential: Estimating Carbon Stocks in the Vital Wetlands of Eastern Sumatra, Indonesia

Mohammad Basyuni (), Andi Aznan Aznawi, Muhammad Rafli, Jeli Manogu Tua Tinumbunan, Erika Trinita Gultom, Revani Dwi Arisindy Lubis, Hegi Alfarado Sianturi, Elham Sumarga, Erizal Mukhtar, Bejo Slamet, Erni Jumilawaty, Rudhi Pribadi, Rama Riana Sitinjak and Shigeyuki Baba
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Mohammad Basyuni: Center of Excellence for Mangrove, Universitas Sumatera Utara, Medan 20155, Indonesia
Andi Aznan Aznawi: Center of Excellence for Mangrove, Universitas Sumatera Utara, Medan 20155, Indonesia
Muhammad Rafli: Department of Forestry, Faculty of Forestry, Universitas Sumatera Utara, Medan 20155, Indonesia
Jeli Manogu Tua Tinumbunan: Department of Forestry, Faculty of Forestry, Universitas Sumatera Utara, Medan 20155, Indonesia
Erika Trinita Gultom: Department of Forestry, Faculty of Forestry, Universitas Sumatera Utara, Medan 20155, Indonesia
Revani Dwi Arisindy Lubis: Department of Forestry, Faculty of Forestry, Universitas Sumatera Utara, Medan 20155, Indonesia
Hegi Alfarado Sianturi: Department of Forestry, Faculty of Forestry, Universitas Sumatera Utara, Medan 20155, Indonesia
Elham Sumarga: School of Life Sciences and Technology, Institut Teknologi Bandung, Bandung 40132, Indonesia
Erizal Mukhtar: Department of Biology, Faculty of Mathematics and Sciences, Universitas Andalas, Padang 25163, Indonesia
Bejo Slamet: Center of Excellence for Mangrove, Universitas Sumatera Utara, Medan 20155, Indonesia
Erni Jumilawaty: Center of Excellence for Mangrove, Universitas Sumatera Utara, Medan 20155, Indonesia
Rudhi Pribadi: Center for Coastal Rehabilitation and Disaster Mitigation Studies, Universitas Diponegoro, Semarang 50275, Indonesia
Rama Riana Sitinjak: Agro Sustainable Centre, Universitas Prima Indonesia, Medan 20117, Indonesia
Shigeyuki Baba: International Society for Mangrove Ecosystems, University of the Ryukyus, Senbaru 1, Nishihara, Okinawa 903-0129, Japan

Land, 2024, vol. 13, issue 11, 1-13

Abstract: Global warming is a critical factor driving climate change, impacting every aspect of life on Earth. The escalating concentration of greenhouse gasses in the atmosphere, the primary contributor to global warming, necessitates immediate action through effective climate mitigation strategies. This study aimed to quantify the biomass and blue carbon stocks in the eastern coastal mangrove forests of North Sumatra and Aceh Provinces in Indonesia, focusing on key sites in Langkat, Deli Serdang, Batu Bara, Tanjung Balai, and Aceh Tamiang Regencies. We measured carbon stock in three carbon pools: biomass (above and below ground), necromass, and soil. By analyzing tree stands using parameters such as tree height and diameter at breast height within circular plots (7 m in radius, 125 m apart), we gathered fundamental data on forest structure, species composition, and above- and below-ground biomass. Additionally, we collected soil samples at various points and depths, measuring the amount of wood, stems, or branches (necromass) that fell to or died on the forest floor. Data were collected in plots along a line transect, comprising three transects and six circular plots each. Sixteen diverse mangrove species were found, demonstrating rich mangrove biodiversity. The mangrove forests in the five regencies exhibited significant carbon storage potential, with estimated average above-ground carbon ranging from 96 to 356 MgC/ha and average below-ground carbon from 28 to 153 MgC/ha. The estimated average deadwood carbon varied between 50 and 91 MgC/ha, while soil carbon ranged from 1200 to 2500 MgC/ha. These findings underscore the significant carbon storage potential of these mangrove forests, highlighting their importance to global carbon cycling and climate change mitigation. This research contributes to a broader understanding of mangroves as vital blue carbon ecosystems, emphasizing the necessity of conservation efforts such as forest restoration and rehabilitation to enhance their role in stabilizing coastal areas and improving global climate resilience.

Keywords: carbon stock; mangrove; global warming; CO 2; restoration; carbon sequestration (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2024
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