Study on wood durability and capacity of retain water under the ground

关于地下木材的生物降解，还有许多未知的问题。当你在地面下使用木材时，有必要澄清这些问题。为此，我们已经进行了文献研究和使用大型容器的加速劣化试验。除这些数据外，为了阐明土壤特性与生物退化之间的关系，并阐明蓄水能力和地下水变化对生物退化的影响，还进行了一些加速退化试验。结果，显示了用于评估地下木材生物劣化可能性的图表，并开发了防止地下木材生物劣化的对策。

About the biodeterioration of wood under the ground, there are many unknown issues. When you use wood under the ground, it is necessary to clarify these issues. For this reason, we have already carried out literature research and an accelerated deterioration test using large-scale container. In addition to these data, to clarify a relationship between soil characteristics and biodeterioration, and to clarify an impact of the retain water capacity and ground water changes against biodeterioration, some accelerated deterioration tests were carried out. As a result, a chart for evaluating biodeterioration possibility of wood under the ground was shown, and a countermeasure against biodeterioration of wood under the ground was developed.