| Project/Area Number |
25892004
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Agricultural environmental engineering/Agricultural information engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
YOSHIDA RYUHEI 東北大学, 理学(系)研究科(研究院), 助教 (70701308)
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| Project Period (FY) |
2013-08-30 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 温暖化 / 土地利用変化 / コメ収量 / 気候 / 東日本 / 気候変動影響評価 / 農業気象 |
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| Outline of Final Research Achievements |
We estimated climate change impacts on rice production with high-resolution climate data by downscaling global scenario and composing regional climate data by land-use change, taking eastern Japan as an example. Downscaled scenario showed that surface temperature increased approximately 3 degree throughout the analysed area in future climate (2081-2100), relative to that in present climate (1981-2000). Although yields of currently cropped cultivars were expected to increase approximately 20 % in the future climate, several high-temperature stress became evident. Low temperature stress reduced in the future climate. However, low-temperature stress was still major concern than high-temperatute stress. Considering expected yield and temperature stresses, followings would be possible options for stable rice production in future climate: 1) by keeping current leading cultivars and 2) by indroducing cultivars such as low senstitivity to temperature for phenology.
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