著者

藤森 眞理子 山田 和人 原沢 英夫 西岡 秀三

出版者

Japan Society of Civil Engineers

雑誌

地球環境シンポジウム講演集 (ISSN:18848400)

巻号頁・発行日

vol.5, pp.267-272, 1997-07-03 (Released:2010-06-15)

参考文献数

16

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The summer of 1994 and 1995 in Japan were extremely hot and a lot of impact was observed in many fields of Japanese society. Such impact of extreme events will work as indicators to detect longer term changes and impact of global warming. In this paper, information and reports about the impact of hot summers were reviewed to find the characteristics of social impacts, especially in the fields of water resources, nature, agriculture, energy and health. More detailed quantitative research are required to assess future vulnerability and mitigation options for the impact of global warming.

著者

高橋 潔 松岡 譲 原沢 英夫

出版者

Japan Society of Civil Engineers

雑誌

環境システム研究 (ISSN:09150390)

巻号頁・発行日

vol.25, pp.121-131, 1997-10-15 (Released:2010-06-04)

参考文献数

25

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The purpose of this study is to evaluate climate change impacts on crop production, which will be the basic information of analyzing world trade of agricultural commodities, and to help decision makings against potential uncertain problems. In this paper, we calculated change in potential productivity of rice, winter wheat and maize (tropical cultivation) between in 1990 and in 2100 based on the 11 GCM outputs combined with several CO2 emission scenarios and probable range of global temperature increase. Calculation was conducted by using a potential crop productivity model. The results were aggregated into 30 countries/regions. The direct effects of increasing CO2 concentration (CO2 fertilization) as well as the impacts due to global warming are considered. The major outcomes of the model calculations are summarized as follows:1) Considering CO2 fertilization, the potential productivity of rice and maize will increase in 2100 under the changed climate. As for winter wheat, regions at high latitudes gain higher yield and those at low latitudes loses its yield. Especially decrease in the productivity of winter wheat in India region may be serious.2) Comparing results with CO2 fertilization and those without it, it was found that most part of increases in potential productivity of rice and maize are derived from CO2 fertilization, not so much from climate change.

著者

三村 信男 江守 正多 安原 一哉 小峯 秀雄 横木 裕宗 桑原 祐史 林 陽生 中川 光弘 太田 寛行 ANCHA Srinivasan 原沢 英夫 高橋 高橋 大野 栄治 伊藤 哲司 信岡 尚道 村上 哲

出版者

茨城大学

雑誌

基盤研究(A)

巻号頁・発行日

2005

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気候変動への影響が大きいアジア・太平洋の途上国における適応力の形成について多面的に研究した.ベトナム、タイ、南太平洋の島嶼国では海岸侵食が共通の問題であり、その対策には土地利用対策と合わせた技術的対策が必要である.また、インドネシア、中国(内蒙古、雲南省など)の食料生産では、地域固有の自然資源を生かした持続可能な農業経営・農村改革が必要である.また、本研究を通して各国の研究者との国際的ネットワークが形成されたのも成果である.