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Title
Japanese:全球規模での灌漑耕作による 塩類集積の潜在的リスク分布推定 
English:SALINIZATION POTENTIAL RISK DUE TO IRRIGATION ON A GLOBAL SCALE 
Author
Japanese: 東山 晃太, 吉川 沙耶花, 鼎 信次郎.  
English: Kota Higashiyama, Sayaka Yoshikawa, Shinjiro Kanae.  
Language Japanese 
Journal/Book name
Japanese:土木学会論文集B1（水工学） 
English:Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 
Volume, Number, Page Vol. 76    No. 2    I115-I120
Published date Nov. 2020 
Publisher
Japanese:公益社団法人土木学会 
English:Japan Society of Civil Engineers 
Conference name
Japanese:第65回水工学講演会 
English:The 65th Conference on Hydraulic Engineering 
Conference site
Japanese:オンライン 
English:Online 
Abstract World population would generally increase until 2100. To cope with the population growth, it is necessary to build a sustainable agricultural production system. Salinization is one of the factors that threaten sustainable land use in farmlands. In this study, we focused on potential risk of salinization to both irrigated and rainfed farmlands. We selected five factors which were soil type, dryness, groundwater level, groundwater condition and irrigation method on the basis of salinaization mechanism. As a result, we could make distribution map of salinization of potential risk on a global scale, and clarified that a high potential risk areas of salinization are 20% of the irrigated farmland which have some potential risk. In rainfed farmland, we showed potential risk areas of salinization are 65%.

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