Prescribed Keeping, Burning, and Processing of Longan Branches for Income Generation of Longan Farmers in Mae Suai and Wiang Pa Pao Districts, Chiang Rai Province, Thailand

Abstract

Longan farmers in Mae Suai and Wiang Pa Pao Districts, Chiang Rai Province of, traditionally disposed of pruning scraps by open burning, contributing to recurring PM 2.5 pollution. This research aimed to address the issue by promoting sustainable management of longan branches through the Burn Check application and enhancing their value by producing wood vinegar and charcoal that meet community product standards. A smokeless, low-pollution furnace was utilized, and community enterprises were established with the participation of 50 longan farmers and network partners. The process involved: 1) participatory problem analysis, 2) technology transfer for proper collection and controlled burning, facilitated by registering for permission through the Burn Check application, 3) creating and developing community innovators for income generation using smokeless furnaces, and 4) establishing community enterprise groups. As a result, longan branches were burned following scientific practices, reducing air pollution. Ten sub-districts, each with 10 communities, engaged in this initiative, and 70% of participants successfully adopted the Burn Check application. The project led to the formation of 10 community enterprises, generating income from the sale of wood vinegar (30 Baht/liter) and charcoal (10 Baht/kilogram), with a total revenue of 103,140 Baht (around 3,025 USD). A Learning Innovation Platform was developed, encompassing five key stages: 1) preparation of agricultural waste, 2) kiln production, 3) wood vinegar and charcoal production, 4) quality inspection, and 5) packaging. This research significantly contributed to improving quality of life, fostering community resilience, and promoting environmental sustainability.