ORIGINAL RESEARCH
Sustainable Options for Reducing Open Burning
of Corn Residues: Case Study of Mae Chaem
District, Thailand
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Department of Energy, Environment and Climate Change, School of Environment, Resources and Development,
Asian Institute of Technology, Pathumthani, 12120, Thailand
Submission date: 2022-02-08
Final revision date: 2022-06-27
Acceptance date: 2022-07-12
Online publication date: 2022-10-12
Publication date: 2022-12-08
Corresponding author
Jirapat Thola
Department of Energy, Environment and Climate Change, School of Environment, Resources and Development, Asian Institute of Technology, Paholyothin Highway, 12120, Pathumthani, Thailand
Pol. J. Environ. Stud. 2022;31(6):5851-5861
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ABSTRACT
Mae Chaem is the biggest corn plantation district in Chiang Mai, Thailand. Corn farmers in Mae
Chaem use open burning to manage corn residues which has led to environmental problems, i.e.,
greenhouse gas emissions, air pollution, and soil degradation. Corn monocultures produce a large
amount of corn residues annually. After harvesting, corn residues are left in the field without utilization
and have caused severe pollution problems stemming from open burning for over a decade. Although
there are many technologies for corn residue utilization, the highest rejection of the technologies for
reducing open burning is found in corn farmers. The goal of this research was to identify sustainable
options for reducing open burning of corn residues, which in turn would reduce environmental problems
and enhance economic and social benefits. The research method employed was an Analytical Hierarchy
Process-based multi-criteria decision-making approach with three main criteria, nine sub-criteria and
nine alternatives. Questionnaires with pair-wise comparison matrices were used for interviewing and
weighting by experts. The results show that sustainable options for reducing open burning should be
prioritized to achieve environmental benefits in reducing air pollution, economic benefits, and social
acceptance by corn farmers. The most suitable technological and non-technological alternatives were
biomass electricity and mixed cropping. This study identified and ranked the technological and nontechnological
options for mitigating open burning.