| Summary: | 碩士 === 國立中興大學 === 土木工程學系 === 84 === Because developments of agriculture tend to cultivate economic
crop, furthermore, methods of cultivation and habitude of
crop are different,so peakflow of rotational paddy basin will be
more than all paddy basin. Understanding change of
drainage in rotational paddy basin is important. On the
other hand, dif f usive tank model is simpler than unsteady flow
model,moreover, its simulation computer time can reduce. When
simulate the drainage of low-lying basin, it shows a good
coincidence. In this paper using the model account for above
adv antages. This
paper, first, explores the situation of drain age in rotational
paddy farm; second, introduce the compendium of diffusive tank
model.Finally, givingdesign storm then using the diffusive tank
model simulatethe change of runoff according to rotational
paddyfarm in basin and analyzesensitivity of parameterin model.
Because the cases of farm are complicate,so in this paper just
consider large-scale rotational farm for simplifying case.
According to the resul ts of study can evaluate area of dry-land
and planning discharge in basin, farther, support the
reference of project and design of defensive construction and
drainage system.
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