The development of gliricidia plantation (Gliricidia sepium) in Indonesia can be considered as a climate change mitigation action to reduce greenhouse gases emission. This paper investigates the yield regulation and potential above-ground carbon storage of gliricidia at Perhutani Forest Management Unit Semarang. The biomass production of gliricidia at various age (1, 2, 3, 4, 5 years) can be utilized to determine the biological cycle and estimating the potential above-ground carbon storage. The result showed that gliricidia could be harvested after 2-years to produce optimum biomass. Above-ground carbon storage in gliricidia plantation distributed in the tree (94.73%), litter (2.98%), and understorey plants (2.29%). Total above-ground carbon storage in gliricidia plantation at age 1-5 years are 6.285,45 Mg C, 8.052,58 Mg C, 9.161,93 Mg C, 14.238,63 Mg C, and 25.474,79 Mg C, respectively.