ANALYSIS OF CARBON STOCK CONTENT IN MANGROVE ECOSYSTEMS IN JEROWARU, EAST LOMBOK REGENCY
Abstract
Mangrove ecosystems play a crucial role in climate change mitigation due to their ability to absorb and store carbon. The coastal area of Jerowaru, East Lombok Regency, has significant potential for mangrove ecosystem management. However, data on carbon content in mangroves in this region is still limited. Therefore, this study aims to analyze the carbon content in mangroves in the area. The objectives of this study include identifying the carbon content in various mangrove species in Jerowaru, East Lombok Regency, and evaluating the influence of biometric variables such as Diameter at Breast Height (DBH), tree height, and biomass on carbon content. This study uses a quantitative approach through direct field measurements and laboratory analysis. Mangrove samples were taken from several observation plots selected using purposive sampling based on mangrove density and species type. The variables measured include mangrove species, DBH, tree height, and biomass. Carbon content was calculated using scientifically validated allometric methods. Data were analyzed using analysis of covariance (ANCOVA) to assess the impact of biometric variables on carbon content. The results showed that carbon content varied among mangrove species. The species Rhizophora apiculata had a higher carbon content compared to Avicennia, Sonneratia alba, Ceriops tagal, and Avicennia rumphiana. Diameter at Breast Height (DBH) had a significant effect on carbon content (p < 0.05), while tree height and biomass also showed a positive effect, although not all were significant. The R-square (R²) value of the resulting model was 84.3%, indicating that 84.3% of the variation in carbon content can be explained by the variables in the model. This study reveals that mangrove species, DBH, tree height, and biomass contribute to carbon content in mangroves in the Jerowaru area, East Lombok Regency. The highest carbon content was recorded in Rhizophora apiculata. These findings emphasize the importance of sustainable mangrove ecosystem management to support climate change mitigation efforts. The results of this study can serve as a reference for coastal ecosystem management policies and mangrove conservation in the East Lombok area.
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