抄録
In order to research the limit of area ratio of the Shijoka to the flow-down type salt field, we measured the distribution of the humidity and the wind velocity, because of the tendency of setting more shijoka.
(1) Beyond the Shijoka, the humidity and the wind velocity recovered generally 65-90%, of course, the numerals changed with the velocity.
(2) It is better that Shijoka is set perpendicularly to the direction of the wind, mostly through a year and zigzag.
(3) From the technical and economical points of views, the area limit of Shijoka to salt field is about 15%.
