[This dataset is embargoed until December 31, 2026]. The data shows 13 different carbon pool sources identified in two mangrove shrimp ponds, collected in Kien Giang province in 2023. The carbon content in the reservoir includes total carbon above ground, carbon below ground, and carbon in the bottom of the pond; from which the total amount of carbon that the shrimp pond has absorbed was calculated. Total carbon above ground is equal to the total amount of carbon of the trunk, branches, leaves, and roots above ground. The underground carbon reservoir is the sum of the biomass carbon of the underground plant and the carbon accumulated in the soil. The carbon reservoir at the bottom is quite complex, including the amount of carbon from fallen debris into the water which will decompose as the main food source for aquatic species such as shrimp, crabs, clams, fish, etc. in the pond. However, the amount of decomposed debris still has some unused material which will sink to the bottom of the pond and accumulate in the sediment. The research objective was to simulate the carbon cycle in mangrove shrimp farming ponds. Mangrove forest runs through the middle and along the length of the ponds, accounting for 50% and 70% of the area, while the remaining area is water where local farmers release shrimp.