Estimasi Biomassa dan Simpanan Karbon pada Ekosistem Hutan Mangrove di Desa Bagan Asahan Kecamatan Tanjung Balai Kabupaten Asahan

Abstract

This research is underpinned by the critical role of mangrove ecosystems in mitigating global climate change through significant carbon storage. The objective of this study is to quantify both aboveground and belowground biomass and carbon storage. Data collection methods involve transect techniques, including tree diameter measurements, tree height assessments, soil sampling, and woody debris quantification. The results of this study identified eight mangrove tree species: Avicennia alba, Avicennia officinalis, Bruguiera gymnorhiza, Excoecaria agallocha, Rhizophora apiculata, Sonneratia alba, Sonneratia caseolaris, and Xylocarpus granatum. The total biomass was found to be 1018.60 Mg/ha, with a carbon storage of 509.57 MgC/ha. The species Excoecaria agallocha exhibited the highest biomass and carbon storage, at 707.12 Mg/ha and 353.83 MgC/ha, respectively. The carbon value in deadwood was 64.82 Mg/ha. Soil carbon storage at a depth of 0-100 cm was 2437.31 MgC/ha. The total carbon in the natural mangrove forest of Bagan Asahan Village, Tanjung Balai District, was 3011.7 MgC/ha. This research underscores the significant role of mangrove forests as carbon sinks, particularly through vegetation biomass and soil carbon content.