Impact assessment of climate change on rice production in Khon Kaen province, Thailand

Kawasaki, Jintana and Herath, Srikantha, (2011). Impact assessment of climate change on rice production in Khon Kaen province, Thailand. Journal of ISSAAS, 17 14-28

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    Author Kawasaki, Jintana
    Herath, Srikantha
    Title Impact assessment of climate change on rice production in Khon Kaen province, Thailand
    Appearing in Journal of ISSAAS
    Volume 17
    Publication Date 2011-08
    Start page 14
    End page 28
    Abstract Global climate change can affect crop yield of rice in the future. In the northeast region of Thailand, farmers faced both floods and drought and low soil fertility, leading the low rate of food self-sufficiency. Based on the questionnaire survey conducted in eleven districts of Khon Kaen Province as the Mid-Northeast, this paper aims to analyze the impacts of climate change on rice production, profitability of rice farming, and adaptation practices to climate change for rice farmers. Many rice varieties were grown in different paddy soil series of Khon Kaen Province. Impact assessment of climate change revealed production of major rice varieties in different paddy soil series under levels of N fertilizer application: three types of non-glutinous rice were KDML 105, Suphanburi, and Chainat; and glutinous rice were RD6 and Sanpatong. KDML 105 rice had high yields in Phon Phisai soil during the years 2010-2019, while RD6 could not grow well in Roi Et soil. Other rice varieties (Suphanburi rice, Sanpathong rice, and Chainat rice) could grow very well in Roi Et and Nam Phong as major soil series of Northeast Thailand. Yield of all tested rice varieties appear to decrease during the years 2050-2059 and 2090-2099, which was presumably due to the difficulties in rice cultivation under the unpredictability of climate. Chang rice variety was considered to maintain rice yields under future climatic conditions. For example, KDML 105 will have high yield during the dry season of years 2050-2059 and will increase during the years 2090-2099, if it will be planted on July. RD6 will grow very well during rainy season of the years 2090-2099 with planting done on June and July for both of Re and Pp soil series. Area, solar radiation and temperature were the most important factors in improving rice production. As solar radiation and temperature increased, rice yield would decrease.
    Keyword Adaptation
    Rice farming
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    Created: Mon, 14 Apr 2014, 17:14:04 JST