【摘 要】
：
每年随着梅雨期的结束和台风的来临都会发生崩塌和泥石流灾害，夺去了很多人的生命和财产。对此，既不能在日本所有的溪流上建造砂防设施，又没有办法事先对难以预测的泥砂灾害采取
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每年随着梅雨期的结束和台风的来临都会发生崩塌和泥石流灾害，夺去了很多人的生命和财产。对此，既不能在日本所有的溪流上建造砂防设施，又没有办法事先对难以预测的泥砂灾害采取防御措施。若将砂防设施覆盖整个国土，从劳力和财政方面亦是不可能的，所以预防灾害至关重...
Every year, as the end of the Meiyu period and the advent of typhoons collapse and debris flow disasters have taken place, robbing many people of their lives and property. In this regard, neither sand control facilities can be built on all the streams in Japan, nor can preventive measures be taken against unpredictable silt disasters in advance. It is also impossible to cover the entire territory with sand and anti-disaster facilities in terms of labor and financial resources, so disaster prevention is of the utmost importance ...
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