The study evaluates the greenhouse gas (GHG) balance of biodiesel production through three chosen land use
change scenarios in Thailand: rubber plantation to oil palm plantation in Krabi, cassava plantation to oil palm
plantation in Chonburi, and abandoned land to oil palm plantation in Pathumthani. The carbon stock changes
were estimated based on the 2006 IPCC Guidelines for National Greenhouse Gas Inventories and combined
with the life cycle GHG emissions from palm oil and biodiesel production in Thailand. For 1 million liters of
biodiesel production per day, the Krabi, Chonburi and Pathumthani cases resulted in −709 Mg CO2-eq/day,
−748 Mg CO2-eq/day and −600 Mg CO2-eq/day, respectively. The Pathumthani case showed the lowest
negative GHG balance even with least fertilization partly because of larger transportation distances while the
Chonburi case was the highest despite low yield as it would require more land to grow oil palm for the same
amount of biodiesel, resulting in more soil carbon being sequestered. However, the land use change scenarios
chosen for this study all show a negative GHG balance which means that biodiesel helps reduce GHG in the
atmosphere
The study evaluates the greenhouse gas (GHG) balance of biodiesel production through three chosen land use
change scenarios in Thailand: rubber plantation to oil palm plantation in Krabi, cassava plantation to oil palm
plantation in Chonburi, and abandoned land to oil palm plantation in Pathumthani. The carbon stock changes
were estimated based on the 2006 IPCC Guidelines for National Greenhouse Gas Inventories and combined
with the life cycle GHG emissions from palm oil and biodiesel production in Thailand. For 1 million liters of
biodiesel production per day, the Krabi, Chonburi and Pathumthani cases resulted in −709 Mg CO2-eq/day,
−748 Mg CO2-eq/day and −600 Mg CO2-eq/day, respectively. The Pathumthani case showed the lowest
negative GHG balance even with least fertilization partly because of larger transportation distances while the
Chonburi case was the highest despite low yield as it would require more land to grow oil palm for the same
amount of biodiesel, resulting in more soil carbon being sequestered. However, the land use change scenarios
chosen for this study all show a negative GHG balance which means that biodiesel helps reduce GHG in the
atmosphere
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