The state of greenhouse gas emissions in some fields of the agricultural sector in Hanoi

Abstract

Greenhouse gas emission estimates were carried out from rice production, which includes: direct N₂O and indirect N₂O emissions, CH₄ emissions from rice cultivation and open burning of rice straw in Hanoi. The results show that total greenhouse gas emissions in these sources are estimated at 2,776.32 MtCO_2-eq in 2021. Wherein, greenhouse gas emissions from rice cultivation account for the largest share with 1,680 MtCO_2-eq (equivalent to 70.0%); direct N₂O emissions from the rice soils are estimated at 605.80 MtCO_2-eq (equivalent to 25.3%); rice straw open burning
emissions is about 108.84 MtCO_2-eq (equivalent to 4.5%); and indirect N₂O emissions from the rice soils is estimated at 5.13 MtCO_2-eq (equivalent to 0.2%) for rice straw open burning. The research results can be seen as a basis for establishing and implementing Hanoi's objectives and programs aimed at reducing greenhouse gas emissions from rice production and participating in clean development mechanism (CDM) initiatives. These activities may include transitioning to rice cultivation practices that reduce greenhouse gas emissions, such as alternate wetting and drying (AWD) and the system of rice intensification (SRI), etc.