Biomass and carbon stock potential of Gliricidia Sepium as an alternative energy at Timor Tengah Utara Regency, East Nusa Tenggara Province, Indonesia

2nd International Conference on Biomass: Toward Sustainable Biomass Utilization for Industrial and Energy Applications

生物科学;工业技术;能源学

Prima, F.H.^1 ; Hariyadi^2 ; Hartono, A.^3

Bogor Agriculture University, Dramaga, Bogor

16680, Indonesia^1

Department of Agronomy and Horticulture, Faculty of Agriculture, Bogor Agriculture University, IPB Dramaga, Bogor

16680, Indonesia^2

Department Soil Science and Land Resource Management, Faculty of Agriculture, Bogor Agriculture University, IPB Dramaga, Bogor

16680, Indonesia^3

关键词: Allometric equations;    Alternative energy;    Carbon stocks;    Diameter-at-breast heights;    Gliricidia sepium;    Leucaena leucocephala;    Renewable energies;    Renewable energy source;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/141/1/012022/pdf
DOI  :  10.1088/1755-1315/141/1/012022

来源: IOP

【 摘 要 】

The utilization of biomass from plants is one efforts for the fulfillment an availability of alternative energy in indonesia. Gliricidia sepium is a tolerant species that can grow in dry land. However its utilization as renewable energy source is non-optimized. This study aims to analyze the potential carbon stocks and biomass from Gliricidia sepium as a raw material for alternative energy in East Nusa Tenggara. This study was conducted in November 2015 and located in Humusu Sainiup, Timor Tengah Utara Regency, East Nusa Tenggara Province. The method used in collecting data was applied in three different land-use, namely monoculture Gliricidia sepium, polyculture between Gliricidia sepium and Leucaena leucocephala, and polyculture between Gliricidia sepium and Zea mays. We used the allometric equation from Ketterings namely B = 0.11ρD2+0,62and C = 0.5 x B. The results showed that the different land-use will give different value of carbon stocks which is in this study the biggest value of carbon stocks was found in monoculture of Gliricidia sp (35.35 tC ha-1) compared with Gliricidia sp + Leucaena sp (18.83 tC ha-1), and Gliricidia sp + Zea mays (13.79 tC ha-1). The value of biomass and carbon stocks was influenced by wood density, trees density, and diameter at breast height (dbh).