Fundamental Studies on the Tile Drainage in Layered Soils (III)
成層土壌における暗キョ排水の基礎的研究 (III)

Yoshikazu FUJIOKA, Tsuyoshi TAKAHASHI
1968 Transactions of The Japanese Society of Irrigation, Drainage and Reclamation Engineering  
In this paper, the drain discharge amount of the paddy fields, where existed a less permeable middle layer such as hard pan, was estimated taking into account the drainage effects of the backfilled trench.
doi:10.11408/jsidre1965.1968.19 fatcat:q5bjfzummnfzzeisspagfetlru