研究成果

Evaluating the Effectiveness of Greenhouse Gas Reduction in the Mekong Delta, Vietnam
- Integrated rice and beef production systems reduce GHG emissions by 22% -

Related Research Program
Environment

 

Evaluating the Effectiveness of Greenhouse Gas Reduction in the Mekong Delta, Vietnam

- Integrated rice and beef production systems reduce GHG emissions by 22% -

Key Points

  • An integrated system that combines rice cultivation and beef cattle production with biogas production can reduce greenhouse gas emissions by 22% compared to a conventional system in which each is done independently.
  • This integrated system is also effective in reducing energy consumption and reducing the environmental impact of the region.
  • As an environmentally friendly agricultural system that makes effective use of local resources, this system is expected to be deployed in the Asian monsoon region, where paddy rice cultivation is flourishing.

Overview

JIRCAS, in collaboration with the National Agriculture and Food Research Organization (NARO), the University of Miyazaki, and Can Tho University in Vietnam, has conducted a life-cycle assessment (LCA) to evaluate the effects of reducing greenhouse gas (GHG) emissions, which contribute to global warming, and reducing environmental impact in the rural areas of the Mekong Delta. 

In the rural areas of southern Vietnam, it is common to have specialized farming systems in which rice cultivation and beef cattle production are conducted independently. However, these specialized farming systems do not effectively utilize local resources and may have a negative impact on the environment. The research group found that an integrated system that combines paddy rice cultivation and beef cattle production with biogas production can reduce GHG emissions by 22% compared to a specialized system. It was also found that energy consumption could be reduced by 22% through the use of biogas, and that emissions of ammonia and other substances derived from livestock manure that affect the water quality of rivers and other bodies could be reduced by 14%.

In the Asian monsoon region, including Vietnam, as in the Mekong Delta, agriculture, mainly paddy rice cultivation, is an important industry. In recent years, the demand for livestock products such as meat has been increasing in line with economic development, and it is expected that the combined system of rice farming and beef cattle production will be adopted in the Asian monsoon region in the future, thereby contributing to the achievement of GHG reduction targets.

The results of this research have been published in the electronic edition of the Journal of Environmental Management on June 8, 2021 (Japan time).

Publication

Authors
Ogino, A., Nguyen, V. T., Hosen, Y., Izumi, T., Suzuki, T., Sakai, T., Ando, S., Osada, T. and Kawashima, T.
Title
Environmental impacts of a rice-beef-biogas integrated system in the Mekong Delta, Vietnam evaluated by life cycle assessment
Journal
Journal of Environmental Management,
DOI: https://doi.org/10.1016/j.jenvman.2021.112900

For Inquiries

JIRCAS President
KOYAMA Osamu
Program Director
HAYASHI Keiichi
Principal Investigators
IZUMI Taro (Biological Resources and Post-harvest Division)
OGINO Akifumi (Institute of Livestock and Grassland Science, NARO)
KAWASHIMA Tomoyuki (University of Miyazaki)
Press Coordinators
OMORI Keisuke (Head, Information and Public Relations Office)
E-mail:koho-jircas@ml.affrc.go.jp
Institute of Livestock and Grassland Science, NARO
koho-nilgs@naro.affrc.go.jp
University of Miyazaki
kouhou@of.miyazaki-u.ac.jp