Abstract
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.
Highlights
Indonesia has been taking action on climate change mitigation
Temporary plot samples (TPS) of 0.01 ha were made on aged gliricidia plants that were distributed at each age
Determination of biological cycles based on the intersection between current annual increment value (CAI) and the mean annual increment (MAI) [11,12,13,14]
Summary
Indonesia has been taking action on climate change mitigation. The multipurpose forest management paradigm receives serious attention to be developed in sustainable forest management to tackle climate change issues. Multipurpose forest management includes integration between wood production and carbon storage in teak plantations [5], a combination of wood supply, carbon storage and biodiversity [6,7], and production firewood and marginal land rehabilitation [8,9]. The research aims were elaborating optimum biological cycle and potential above-ground carbon storage of gliricidia. Above-ground carbon storage can be integrated on bioenergy forest management planning. The research is important to develop multipurpose forest management on bioenergy plantation in Indonesia, especially for gliricidia species
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