Impact of global warming on rice production in Japan based on five coupled atmosphere-ocean GCMs

Toshichika Iizumi, Masatake E. Hori, Masayuki Yokosawa, Hiroshi Nakagawa, Yousay Hayashi, Fujio Kimura

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

This study updates the projection of global warming impact on rice production in Japan using five coupled Atmosphere-Ocean General Circulation Model (AOGCM) products under the SRES A1B scenario. Projection of daily maximum and minimum temperatures and daily total solar radiation for each AOGCM product are fed to a regional-scale rice model by which the rice heading day and yield are simulated. Most climate model results show that while the heading day becomes significantly earlier, the yield mostly remains in the range of interannual variability of the present climate. Projected future yield shows a distinct pattern of increase in the northern Japan and decrease in the southwestern Japan, with exception in parts of Kyushu. Projected yield change in the central Japan differs depending on the location of the prefecture. The trend of change in yield is consistent among simulation years in the northern and central Japan whereas it varies year-to-year in the southwestern Japan. The variance in yield over southwestern Japan possibly becomes larger due to heat stress as a result of global warming.

Original languageEnglish
Pages (from-to)156-159
Number of pages4
JournalScientific Online Letters on the Atmosphere
Volume2
DOIs
Publication statusPublished - 2006 Jan 1
Externally publishedYes

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general circulation model
global warming
rice
atmosphere
ocean
solar radiation
climate modeling
climate
simulation
temperature
product

ASJC Scopus subject areas

  • Atmospheric Science

Cite this

Impact of global warming on rice production in Japan based on five coupled atmosphere-ocean GCMs. / Iizumi, Toshichika; Hori, Masatake E.; Yokosawa, Masayuki; Nakagawa, Hiroshi; Hayashi, Yousay; Kimura, Fujio.

In: Scientific Online Letters on the Atmosphere, Vol. 2, 01.01.2006, p. 156-159.

Research output: Contribution to journalArticle

Iizumi, Toshichika ; Hori, Masatake E. ; Yokosawa, Masayuki ; Nakagawa, Hiroshi ; Hayashi, Yousay ; Kimura, Fujio. / Impact of global warming on rice production in Japan based on five coupled atmosphere-ocean GCMs. In: Scientific Online Letters on the Atmosphere. 2006 ; Vol. 2. pp. 156-159.
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