The Impact of Climate Variability and Change to Cassava Yield and Valuation
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Abstract
The climate variability and change have affected to crop yield all over the world. While, Thailand is one of the world's top cassava exporters with a market share of 79.56 percent. The objectives of this study were to investigate the impact of climate variability and change to cassava yield and its valuation, and to become a guideline for adaptation under climate variability and change. The result showed that the relative humidity (mm/month), wind speed (km/day), and maximum temperature/mean temperature ratio become the influencing factors on the cassava yield (tons ha-1) whereas the coefficient of determination was at 0.519, that is, the relative humidity (mm/month), wind speed (km/day), and maximum temperature/mean temperature ratio could explain the changes in cassava yield for 51.9% while the rest 48.1% was influenced by other variables, which were not considered, at the .000 level of significance. In addition, if the ratio of maximum temperature/mean temperature is increases by 0.01. Cassava yield and cassava valuation will decreases 3.89% and 68.70 US$ ha-1respectively. The regression formula of correlation coefficient between cassava yield with meteorological data and temperature variability ratio was cassava yield = 0.903(relative humidity) + 0.035 (wind speed) – 99.842 (maximum temperature/ mean temperature ratio) + 57.500
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บทความที่ปรากฏในวารสารนี้ เป็นความรับผิดชอบของผู้เขียน ซึ่งสมาคมนักวิจัยไม่จำเป็นต้องเห็นด้วยเสมอไป การนำเสนอผลงานวิจัยและบทความในวารสารนี้ไปเผยแพร่สามารถกระทำได้ โดยระบุแหล่งอ้างอิงจาก "วารสารสมาคมนักวิจัย"
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