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Estimation of above ground biomass for oil palm plantations using allometric equations.

Malaysia is the second largest world producer of palm oil (Elaeis guineensis) with current planted area of plantations around 4.69 million ha. Oil palm contributes of about 75 percent of total planted area as compared to other agricultural tree crops. Since the oil palm plantations play an important roles in the economic and sources of income to Malaysia, accurate and reliable information is needed for its management efforts and planning. In Malaysia, there is lack of data and information regarding the aboveground biomass (AGB) for oil palm plantation. Therefore, the need for current inventory on resource availability has leads this research into ground field survey using existing allometric equations. The objectives of this study are (1) to estimate the AGB of oil palm plantations using different allometric equations and (2) to determine the relationships of AGB with oil palm stand variables. This study was conducted in 60 oil palm plantations in Selangor, Malaysia. The AGB of oil palm measured in the field using Corley and Tinker’s equation (2003) estimates an average of 40.77 tonnes per hectare while using Khalid’s equation (1999) estimates an average of 47.19 tonnes per hectare.