Geographical Study on Multipurpose Utilization of Irrigation Pond

灌溉池除了具有农业供水功能外，还具有多种功能，这些功能的利用对灌溉池的维护是有效的。本研究通过对多用途利用灌溉池多种功能的案例进行分析，明确其实现多用途利用的因素和利用效果。总之，他们是以下三点。首先，实现灌溉池多用途的最大因素是调整农业水权持有人与新用户之间的利益关系，特别是严格保障水权。二是地方政府的财政权力强制执行整体修复工程的建设和多用途，以确保池塘的安全，因为这成为池塘多用途的大前提。第三，通过对爱知县在东海暴雨灾害中灌溉池的防洪功能的案例分析，指出了灌溉池在洪水调节中的作用。

The irrigation pond has multiple functions besides the agricultural water supply, and the use of these functions is effective to maintain the irrigation pond. In this research, the cases with multipurpose use that used multiple functions of the irrigation pond were analyzed, and the factor that such use was achieved and the effectiveness of the use were clarified.In conclusion, they are the following three points. First, the maximum factor to achieve multipurpose use for the irrigation pond is to adjust the interests between holders of agricultural water rights and new users, especially to guarantee water rights severely. The second is financial power of the local government to be enforceable of the construction for the overall repair work and multipurpose use to secure the safety of the pond because it becomes the major premise of multipurpose use for the pond. Thirdly, the effect of the irrigation ponds of the flood adjustment, was able to be pointed out from the case analysis in Aichi Prefecture about the flood control function of the irrigation ponds at the disaster of Tokai Downpour.