การวิเคราะห์ต้นทุนและผลประโยชน์การปลูกข้าวแบบน้ำขังและแบบเปียกสลับแห้ง

Noramon Thongrit; Adis Israngkura

Authors

Noramon Thongrit คณะพัฒนาการเศรษฐกิจ สถาบันบัณฑิตพัฒนบริหารศาสตร์
Adis Israngkura คณะพัฒนาการเศรษฐกิจ สถาบันบัณฑิตพัฒนบริหารศาสตร์

Keywords:

Continuous Flooding Rice, Alternative Wetting and Drying Rice, Financial and Economic Cost-Benefit Analysis, Greenhouse Gas Mitigation, Climate Change

Abstract

This study aims to analyze the financial and economic costs and benefits of Continuous Flooding (CF) and Alternative Wetting and Drying (AWD) rice cultivation methods in the central region of Thailand. The data were collected from both existing documents of the relevant agencies and directly from rice farmers. The collected data were then analyzed using Cost-Benefit Analysis (CBA). The objectives of this study are to compare the financial and economic feasibility between different rice cultivation systems. The study also aims to provide supporting information for policy formulation and guidelines to promote sustainable rice production in the future under climate change conditions, and greenhouse gas mitigation. The results show that while Continuous Flooding (CF) and Alternative Wetting and Drying (AWD) cultivation are financially viable in all areas of the central region, but most areas are not economically viable. Even though Continuous Flooding (CF) cultivation is financially profitable in most areas, its value is not high. This study suggests Thailand should reduce its rice plantation areas as the benefits accrue to the farmers do not justify the government subsidies. Thailand also needs to transform economically unviable rice plantation areas into smart farming as it will reduce rice subsidies as well as raise income to the farmers. The reduction in rice plantation areas will also enhance Thailand’s greenhouse gas mitigation without the need for AWD investments.

References

Agricultural Land Reform Office. (2020). Annual report 2020. New Thammada Press (Thailand) Co., Ltd. (In Thai).

ASEAN Sustainable Agrifood Systems. (n.d.). Combined measures for farmers (working capital with subsidies) for laser land levelling (LLL) and soil preparation. (In Thai). https://www.asean-agrifood.org/?wpfb_dl=788.

Bank of Thailand. (2014). Key economic issues in 2014. (In Thai).

Bank of Thailand. (2015). Thailand economic report 2015. (In Thai).

Bank of Thailand. (2017). Thailand economic report 2017. (In Thai).

Bank of Thailand. (2018). Thailand economic report 2018. (In Thai).

Bank of Thailand. (2020). Thailand economic report 2020. (In Thai).

Bank of Thailand. (2023). Thailand economic report 2023. (In Thai).

Budget Bureau. (2020). Budget document no. 3: Revised expenditure budget according to the expenditure budget act, fiscal year 2020, volume 4. Office of the Prime Minister. (In Thai).

Budget Bureau. (2020). Budget document no. 3: Revised expenditure budget according to the expenditure budget act, fiscal year 2020, volume 7. Office of the Prime Minister. (In Thai).

Budget Bureau. (2021). Budget document no. 3: Revised expenditure budget according to the expenditure budget act, fiscal year 2021, volume 4. Office of the Prime Minister. (In Thai).

Dahlgreen, J., & Parr, A. (2024). Exploring the impact of alternate wetting and drying and the system of rice intensification on greenhouse gas emissions: A review of rice cultivation practices. Agronomy, 14(2), 378.

Dailynews Online. (2025, November 23). BAAC launches “low-carbon rice” project to reduce methane emissions from rice paddies, with rice selling for 500 baht more per ton. Dailynews. (In Thai). https://www.dailynews.co.th/news/5329294/

Vanichsan, D., & Kwanyuen, B. (2014). Development of water management in paddy fields to reduce methane emission. Engineering Journal of Research and Development, 25(1), 59–69. (In Thai). https://ph02.tci-thaijo.org/index.php/eit-researchjournal/article/view/87227.

Food and Agriculture Organization of the United Nations. (2023). Methane emissions in livestock and rice systems: Sources, quantification, mitigation and metrics. https://doi.org/10.4060/cc7607en

Bumrungbood, J., Hanpattanakit, P., Chidthaisong, A., Saeng-Ngam, S., & Vanitchung, S. (2020). Efficiency of water management by alternative wetting and drying on rice growth and production. Srinakharinwirot University Journal of Sciences and Technology, 12(24), 10–22. (In Thai). https://ejournals.swu.ac.th/index.php/SWUJournal/article/view/13155

Islam, S. M. M., Gaihre, Y. K., Islam, M. R., Akter, M., Al Mahmud, A., Singh, U., & Sander, B. O. (2020). Effects of water management on greenhouse gas emissions from farmers’ rice fields in Bangladesh. Science of the Total Environment, 734, 139382. https://doi.org/10.1016/j.scitotenv.2020.139382

Kasikorn Research Center. (2024, May 28). How to trade carbon credits in Thailand? (In Thai). https://www.kasikornresearch.com/th/analysis/k-social-media/Pages/CarbonCredit-CIS3500-FB-28-05-2024.aspx.

Land Development Department. (2022). Analysis table for dry-season rice crops 2014–2015 (513) [Excel spreadsheet]. Ministry of Agriculture and Cooperatives. (In Thai).

Maneepitak, S., Ullah, H., Datta, A., Shrestha, R. P., Shrestha, S., & Kachenchart, B. (2019). Effects of water and rice straw management practices on water savings and greenhouse gas emissions from a double-rice paddy field in the Central Plain of Thailand. European Journal of Agronomy, 107, 18–29. https://doi.org/10.1016/j.eja.2019.04.002.

Ministerial regulation prescribing irrigation fees, collection or payment of irrigation fees, and exemptions and installment payments of irrigation fees B.E. 2564. (2021, July 9). Royal Gazette, 138(55A), 5–9. (In Thai).

Trade Policy and Strategy Office. (2025). A study on the rice trade situation and opportunities for the development of Thai rice products. Ministry of Commerce. (In Thai). https://www.tpso.go.th/document/2504-0000000006.

Mitigation Action Facility. (2025). Evaluation & learning factsheet series: Key learnings from the Thai Rice Project. https://mitigation-action.org/wp-content/uploads/Mitigation-Action-Facility_Thai-Rice-Factsheet.pdf.

Ruensuk, N., & Poathong, K. (2015). Increasing of farmers’ rice production efficiency by alternative wetting and drying water management model. Thai Rice Research Journal, 6(1), 31–41. (In Thai).

Office of Agricultural Economics. (2020). A study on marginal abatement cost for reducing greenhouse gas emissions from rice fields. Ministry of Agriculture and Cooperatives. (In Thai).

Office of Agricultural Economics. (2021). Agricultural statistics of Thailand 2021. Ministry of Agriculture and Cooperatives. (In Thai).

Office of Agricultural Economics. (2024). Dry-season rice and irrigated dry-season rice, 1989–2024 [Data set]. Ministry of Agriculture and Cooperatives. (In Thai).

Thipbharos, P., Siripanich, P., & Phuangsap, W. (2018). Costs, returns, and household commercialization index of certified organic rice in Thailand. Suthiparithat Journal, 32(104), 128–142. (In Thai).

Rice Department. (n.d.). Water management. Rice Knowledge Bank. (In Thai). https://rkb.ricethailand.go.th/web/content_page.php?code=A-IILHNYHKLU

Rice Department. (2016). Water management. Rice Knowledge Bank. (In Thai). https://rkb.ricethailand.go.th/web/content_page.php?code=A-T6TEEWQP4S

Royal Irrigation Department. (2016). Guide to wet-dry alternating rice cultivation under the wet-dry alternating rice cultivation demonstration plot project, fiscal year 2015. Bureau of Water Management and Hydrology. (In Thai).

Sriphirom, P., Chidthaisong, A., & Towprayoon, S. (2019). Effect of alternate wetting and drying water management on rice cultivation with low emissions and low water used during wet and dry season. Journal of Cleaner Production, 223, 980–988. https://doi.org/10.1016/j.jclepro.2019.03.212.

Suzuki, Y., Kamma, S., Chutteang, C., Chaichana, N., & Pakoktom, T. (2023). Effects of alternate wetting and drying water management and rice straw incorporation on sustainable rice production under rainy season conditions in central Thailand. Agriculture and Natural Resources, 57(5), 777–786.

Bank for Agriculture and Agricultural Cooperatives. (2020). Annual report 2020. (In Thai). https://www.baac.or.th/file-upload/000207-BAAC%20Annual%20Report%2063-TH.pdf.

Bank for Agriculture and Agricultural Cooperatives. (2021). Annual report 2021. (In Thai). https://www.baac.or.th/th/content-report.php?content_group=0002&content_group_sub=0003&inside=1&year_select=2021.

Tirol-Padre, A., Minamikawa, K., Tokida, T., Wassmann, R., & Yagi, K. (2018). Site-specific feasibility of alternate wetting and drying as a greenhouse gas mitigation option in irrigated rice fields in Southeast Asia: A synthesis. Soil Science and Plant Nutrition, 64(1), 2–13.

Uttaruk, Y., Laosuwan, T., Sangpradid, S., Butthep, C., Leammanee, S., Indra, S., & Khunthong, P. (2024). Climate change mitigation using alternate wetting and drying methods to reduce greenhouse gas emissions. The Journal of Spatial Innovation Development, 5(2), 93–104. (In Thai).