【作者】 王卫光； 彭世彰； 缴锡云； 徐俊增； 罗玉峰；

【Author】 Wang Weiguang,Peng Shizhang,Jiao Xiyun,Xu Junzeng,Luo Yufeng (State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University,Nanjing 210098,China)

【机构】 河海大学水文水资源与水利工程科学国家重点实验室；

【摘要】 全球气候变化及其可能造成的影响已成为世界各国普遍关注与重视的热点问题。农业是最易遭受气候变化影响的产业之一。近年来,全球气候变化及其引起的极端气候事件(尤其是近几年频发的干旱事件,如2010年西南大旱)对我国农业生产和粮食安全造成显著的影响。保障有效灌溉已经成为全球气候变暖背景下确保全球粮食安全的重要基础。研究气候变化条件下的作物灌溉需水变化规律,揭示作物灌溉需水对气候变化的响应机理,对于更好地评价气候变化对作物生产的影响,制定应对灌溉策略,减少气候变化对作物生产的负面影响,从而保障中国粮食安全具有重要的科学意义。本文对气候变化对作物灌溉需水影响的研究现状进行了综述,主要从气候变化对作物生产的影响、气候变化对作物水分利用的影响以及气候变化影响评价的不确定性三个方面进行了探讨,并对该领域研究工作的薄弱环节和未来发展方向进行了评述。更多还原

【Abstract】 Investigation of global climatic changes and their impacts have received considerable attention around the world.Agriculture is one of the most vulnerable sectors to climate change.In recent years,China s agricultural production and food security have suffered from climate change and extreme weather events significantly.Therefore,effective irrigation has become an important basis to ensure global food security under global warming.The researches on impact of climate change on crop irrigation water requirement are of considerable importance in better assessment of climate change on crop production,development of irrigation strategy, reduction of climate change’s negative effects on crop production and ensuring food security in China.A review of impact of climate change on irrigation water requirement has been presented in this paper,with a discussion on the impact of climate change on crop production and agricultural water use and their uncertainty.In addition,shortcomings and outlook in this field have been also discussed.更多还原