ȯɽÈÖ¹æ 5-52
The underdrainage in which the hydraulic continuation arose in the region in the negative ground
AZAMI Soichi [¡¡Graduate School of Science and Technology, Niigata Univ.]
NAKANO Toshirou [Faculty of Agricuiture,Niigata Univ.]
MASUMO Jyunko [Ministry of land infrastructure and Transport kanto Regional Development Bureau]
INAMURA Takashi [YASHIMA CORPORATION]
AOKI Tomoka [Department of Agricultural Land,Niigata]
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Keyword: ÇÀÃÏÀ°È÷, ÇÀÃϤÎÈÆÍѲ½, ÇÀÃϤÀ®
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