SIMULATION OF CARBON DYNAMICS OF Acacia mangium FOREST AT PARUNGPANJANG, BOGOR USING CENTURY MODEL

• Main Author: Nuraziza M, Isni
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/34679
• Institution: Institut Teknologi Bandung

Forest ecosystems play an important role in regulating atmospheric carbon through the process of photosynthesis. Many studies have measured the carbon stocks of Acacia mangium but those studies only captured a static view of without taking into account the role of other components of the ecosystem. Century is one of ecological models that can be used to simulate the carbon dynamics and the effects of changing in other components in the cosystems. This research has simulated the carbon dynamics of Acacia mangium stand in Parungpanjang, Bogor using Century model. The research stages consisted of model parameterization and validation, and analysis of the simulated dynamics of carbon in Acacia mangium stand grown in reforestation setting. The parameterization was done by adjusting the model parameters to the characteristics of Acacia mangium and the environment condition of the planting area. The validation was conducted by comparing simulation results to the empirical data, i.e. carbon stocks of the Acacia mangium stands aged 2, 4, 6, and 8 years old. The validation test showed that the output of simulation approaches the empirical data particularly on the carbon trees. When the model was run for 50 years, the results showed that the carbon accumulation in the forest system (soil organic matter, trees, dead wood, and forest litter) increases as the age of Acacia mangium stand increases. However, the carbon in soil initially decreases until reaching at a constants value and then remains at that level until the end of simulation.