Search Results 1-20 of 180

  • Impact of Agricultural Investments on World Wheat Market under Climate Change: Effects of Agricultural Knowledge and Innovation System, and Development and Maintenance of Infrastructure

    KOIZUMI Tatsuji

    … <p>The role of agricultural investment growth in alleviating climate risks for wheat production systems and markets was examined using a partial equilibrium model, the Wheat Economy Climate Change (WECC) model, which covers the wheat markets of 10 countries and two regions. … The volatility of international wheat prices at baseline is expected to increase in 2014-2016 and until 2040 because of climate change. …

    Japan Agricultural Research Quarterly: JARQ 53(2), 109-125, 2019

    J-STAGE

  • Collapse of Antarctic ice sheet and sea level rise in the Last Interglacial  [in Japanese]

    関 宰

    近年,極域氷床の融解が急速なペースで進行中であることが明らかになり,温暖化によって海水準が大きく上昇する懸念が高まっている.産業革命前よりも僅かに温暖な最終間氷期(13万~11.5万年前)には,6~9mもの急激な海水準上昇があったとされる.これが事実なら,現在と似た気候状態で,南極氷床の大規模な崩壊を誘発する臨界点が存在することになる.現在の平均的な気候状態はすでに最終間氷期のレベルに達しており, …

    低温科学 (76), 135-144, 2018-03-31

    IR DOI

  • Recent Trends of Rural Out-migration and its Socio-economic and Environmental Impacts in Uttarakhand Himalaya <Article>

    Joshi Bhagwati

    … Moreover, the steady depletion of natural resources and climate change have further accelerated the trends of outmigration which have enhanced women's roles and responsibilities, and increased their workload both in farm as well as non-farm sectors rendering them more vulnerable to environmental changes, particularly climate change. …

    Journal of Urban and Regional Studies on Contemporary India 4(2), 1-14, 2018-03

    IR DOI

  • CLIMATE STABILITY OF IN AN ENERGY BALANCE MODEL ASSOCIATED WITH OCEAN AND LAND PROCESSES  [in Japanese]

    細井 遵敬 , 山田 朋人

    水工学論文集 Annual journal of Hydraulic Engineering, JSCE 63, I_55-60, 2018

  • AN INFLUENCE OF ATMOSPHERIC STABILIZATION AND VAPOR INVASION ON OCCURRENCE FREQUENCY OF GUERRILLA-HEAVY RAINFALL  [in Japanese]

    中北 英一 , 橋本 郷志 , 森元 啓太朗 , 小坂田 ゆかり

    水工学論文集 Annual journal of Hydraulic Engineering, JSCE 63, I_25-30, 2018

  • An influence of environmental stabilization and vapor invasion on future change of frequency of occurence of Guerrilla-heavy rainfall  [in Japanese]

    HASHIMOTO Goshi , NAKAKITA Eiichi , MORIMOTO Keitaro , OSAKADA Yukari

    近年ゲリラ豪雨による水難事故などの災害が多発している。また、地球温暖化に伴う気候変動により、降雨の特性が変化するとも言われている。気候変動がゲリラ豪雨に及ぼす研究として、中北ら(2017)は5km解像度領域気候モデルRCM05を用いて、気候変動下の将来気候8月においてゲリラ豪雨の発生頻度が増加することを示している。本研究では、この中北ら(2017)の結果を踏まえて、なぜ8月にゲリラ豪雨の発生頻度が …

    Proceeding of Annual Conference 31(0), 14, 2018

    J-STAGE

  • FUTURE PROJECTION OF STORM SURGE HEIGHT AT THREE MAJOR BAYS IN JAPAN USING MAXIMUM POTENTIAL INTENSITY OF TYPHOON IN WESTERN NORTH PACIFIC  [in Japanese]

    ARIYOSHI Nozomi , MORI Nobuhito

    台風の最大潜在強度(MPI)の理論に基づき,気候値から高潮偏差までをシームレスに推定する手法を開発し,気候的最大高潮偏差(MPSSH)の将来変化予測を行った.本手法をCMIP5および大規模アンサンブル気候実験d4PDFの2種類の気候予測結果に適用した結果,高潮偏差予測に対する大気の安定性の影響が明らかになった.特に,SST 変化に対するMPSSH変化の感度は,三大湾の台風シーズン平均で約0.12 …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 74(2), I_619-I_624, 2018

    J-STAGE

  • Improvement of the Sterol and Triacylglycerol Compositions of Chemlali Virgin Olive Oils through Controlled Crossing with Mediterranean Cultivars

    Manai-Djebali Hédia , Oueslati Imen , Martínez-Cañas Manuel A. , Zarrouk Mokhtar , Sánchez-Casas Jacinto

    … <p>The chemical composition of extra virgin olive oils (EVOOs) from six new progenies, obtained through controlled crossings between the main Tunisian variety Chemlali and autochthonous (Chemcheli) and foreign cultivars (Sigoise, Coratina, Koroneiki, and Arbequina) used as pollen acceptor or pollinator, were compared with the EVOO of Chemlali cultivar known to be the main one cultivated in Tunisia as it is the most adapted to the arid climate. …

    Journal of Oleo Science 67(4), 379-388, 2018

    J-STAGE Ichushi Web

  • Improving the interpretability of climate landscape metrics: An ecological risk analysis of Japan's Marine Protected Areas

    Molinos Jorge Garcia , Takao Shintaro , Kumagai Naoki H. , Poloczanska Elvira S. , Burrows Michael T. , Fujii Masahiko , Yamano Hiroya

    … As climate change becomes an increasing concern, these efforts must take into account how resilient-protected spaces will be in the face of future drivers of change such as warming temperatures. … Climate landscape metrics, which signal the spatial magnitude and direction of climate change, support a convenient initial assessment of potential threats to and opportunities within ecosystems to inform conservation and policy efforts where biological data are not available. …

    Global change biology 23(10), 4440-4452, 2017-10

    IR

  • Holocene dynamics in the Bering Strait inflow to the Arctic and the Beaufort Gyre circulation based on sedimentary records from the Chukchi Sea

    Yamamoto Masanobu , Nam Seung-Il , Polyak Leonid , Kobayashi Daisuke , Suzuki Kenta , Irino Tomohisa , Shimada Koji

    … We propose that the BG rotation weakened as a result of the increasing stability of sea-ice cover at the margins of the Canada Basin, driven by decreasing insolation. …

    Climate of the Past 13(9), 1111-1127, 2017-09-08

    IR DOI

  • Understanding and monitoring the consequences of human impacts on intraspecific variation

    Mimura Makiko , Yahara Tetsukazu , Faith Daniel P. , Vázquez-Domínguez Ella , Colautti Robert I. , Araki Hitoshi , Javadi Firouzeh , Núñez-Farfán Juan , Mori Akira S. , Zhou Shiliang , Hollingsworth Peter M. , Neaves Linda E. , Fukano Yuya , Smith Gideon F. , Sato Yo-Ichiro , Tachida Hidenori , Hendry Andrew P.

    … This omission is ill-advised because phenotypic and genetic variations within and among populations can have dramatic effects on ecological and evolutionary processes, including responses to environmental change, the maintenance of species diversity, and ecological stability and resilience. … At the same time, environmental changes associated with many human activities, such as land use and climate change, have dramatic and often negative impacts on intraspecific variation. …

    Evolutionary Applications 10(2), 121-139, 2017-01-23

    IR DOI

  • Next-generation Surface Sizing Agent  [in Japanese]

    Umeuchi Shiro

    <p>近年,中性紙化に伴う紙中硫酸バンド量の減少は,広く使用されているアニオン性表面サイズ剤のサイズ効果の低下を招くばかりか,内添で使用されるロジンサイズ剤のサイズ効果も発揮し難くなり,トータルのサイズ剤使用量の増加を引き起こしている。さらには紙中炭酸カルシウム量の増加に伴い紙表面から塗工液に脱落した炭酸カルシウムやそれに由来するカルシウムイオンの増加による表面サイズ剤の不安定化やサイ …

    JAPAN TAPPI JOURNAL 71(4), 388-393, 2017

    J-STAGE

  • Climate Effect on Supply and Market Price Stability of Rice in Bangladesh: Assessment of Climate and Socioeconomic Scenarios

    Salam Md. Abdus , Furuya Jun , Kobayashi Shintaro

    … <p>This study aimed to predict stability of rice supply and market price in facing food security challenges. …

    Japanese Journal of Agricultural Economics 19(0), 60-65, 2017

    J-STAGE

  • STUDY ON APPLICABILITY OF GRAVEL BEACH NOURISHMENT IN TUVALU  [in Japanese]

    ONAKA Susumu , ICHIKAWA Shingo , IZUMI Masatoshi , UDA Takaaki , HIRANO Junichi , SAWADA Hideki

    南大洋州の小島嶼国であるツバル国で顕在化しつつある海岸侵食や高波浸水被害に対し,礫と砂を用いた礫養浜を実証事業として実施するとともに,工事完了から1年以上にわたり,形成された浜での継続的な海岸モニタリングを実施した.また,同時期に隣接海岸にて実施された埋立て事業としての大規模砂投入後の海岸モニタリングも合わせて実施し,両者の海浜挙動の比較より南大洋州の小島嶼国での本工法の適用性,有効性を検討した. …

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 73(2), I_528-I_533, 2017

    J-STAGE

  • Analysis of the Reproduction Features of the Guerrilla-heavy Rainfall and Estimation of Future Changes of the Occurrence Frequency in Multi-resolution RCMs  [in Japanese]

    中北 英一 , 森元 啓太朗 , 野坂 真也

    … Then, we analyzed the atmospheric stability of the events that was picked up, using a parameter SSI (Showalter Stability Index). …

    京都大学防災研究所年報 (61), 479-499, 2017

    IR

  • An Influence of Future Change of Atmospheric Stability and Vapor Inflow on Occurrence Frequency of Guerrilla-heavy Rainfall under Climate Change  [in Japanese]

    中北 英一 , 橋本 郷志 , 森元 啓太朗 , 小坂田 ゆかり

    … In this study, we analyze the mechanism of the future change of a occurrence frequency of Guerrilla-heavy rainfall in the Kinki region in August by focusing on the future change of lapse rate and water vapor inflow using a 5km-mesh regional climate model (RCM05). … From the analysis, we show the frequency of days will increase when Showalter Stability Index (SSI), which expresses atmospheric stability, becomes lower in the Kinki region in late August although lapse rate will decrease. …

    京都大学防災研究所年報 (61), 429-447, 2017

    IR

  • 〈Articles〉Prospects of Nation Building in Malaysia: Limitations of Government-led National Integration Policies  [in Japanese]

    畝川 憲之

    … Malaysia's economic growth strategies dependent on FDI also induce the government to implement vague and shifting policies since these policies result in stable political and social climate. … Stability has been the most important comparative advantage for attracting FDI to Malaysia during its period of modern economic growth. …

    Journal of International Studies (1), 33-48, 2016-11

    IR

  • The temporal stability and developmental differences in the environmental impacts of militarism : the treadmill of destruction and consumption-based carbon emissions

    Jorgenson Andrew K. , Clark Brett

    Sustainability science : official journal of the Integrated Research System for Sustainability Science 11(3), 505-514, 2016-05

  • DEFORMATION AND COUNTER MEASURE OF REINFORCED SOIL RETAINING WALLS AND EMBANKMENTS  [in Japanese]

    SHINODA Masahiro , HAYASHI Taketo , HIRONAKA Junichi , KUBO Tetsuya

    地球温暖化に伴う気候変動や地震の多発により,我が国の社会資本の自然災害による被災リスクが増加している.補強土壁・補強盛土は高い耐震性と耐降雨性を有しており,国内外において施工実績が多い.しかしながら,昨今の豪雨や地震の多発により変状が生じた補強土壁・補強盛土も存在する.本論文では,変状が生じた補強土壁・補強盛土に着目し,発生した変状,変状発生原因,変状に対する措置について取りまとめた.最後にこれま …

    Geosynthetics Engineering Journal 31(0), 269, 2016

    J-STAGE

  • Rice production model based on the water circulation properties at the rain-fed paddy region toward to refinement of rice yield distribution  [in Japanese]

    Tanaka Kenji , Yoshida Koshi , Maeda Shigeya , Kuroda Hisao

    本研究が対象とするメコン川流域は,天水田稲作により発展してきた地域である.しかし近年では気候変動により米生産量の低下と急激な人口増加により需要量の増大が予測され,食糧自給バランスの不安定化が懸念されている.米生産量に関する全球・大陸スケールを対象とした研究は多く行われているが,生産潜在量を評価したものが主であり,農業水利用に関して現地の営農体系を反映していない点に課題がある.一方で圃場群スケールで …

    Proceeding of Annual Conference 29(0), 117, 2016

    J-STAGE

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