ESTIMATION OF SHOOT DENSITY AND SOIL-ORGANIC CARBON STOCK OF SEAGRASS MEADOWS AT LEMBEH STRAIT AND SORROUNDINGS

• Main Author: Satrio Widanto, Dzaki
• Format: Final Project
• Language: Indonesia
• Subjects: Geologi, hidrologi & meteorologi
• Online Access: https://digilib.itb.ac.id/gdl/view/71070
• Institution: Institut Teknologi Bandung

Seagrass sediment is a potential carbon storage media for climate change mitigation. A research was conducted in seagrass meadows at Lembeh Strait region and its sorroundings to explore their Blue Carbon capacity. This study’s purposes are to profiling seagrass species and their estimated shoot densities, quantifying seagrass soil-organic carbon stock, and also adressing factors that affect the soil carbon stock. Transect line method is used as data collection method. Sampling of seagrass shoot density and sediment is done by coring method. Species identification and shoot density counting is processed with seagrass survey guide, while soil-organic carbon stock is calculated by Loss on Ignition method. Dry Bulk Density and water depth are also processed by statistic or qualitative method to uncover each of their relationship on soil-organic carbon stock. The seagrass meadows of Lembeh Strait and sorroundings have 3 species: E. acoroides, T. hemprichii, and C. rotundata, with total shoot density of 1.296 ind/m2. The seagrass’ soil-organic carbon stock has ascending trend on their vertical sediment profile, whilst estimated to an average of 181,38 Mg Corg ha-1 and a total of 362,76 ± 63,61 Mg Corg ha-1. With statistic method, Pearson correlation reveals a positive relation (medium to strong) between dry bulk density and soil-organic carbon stock.