2020 年 26 巻 p. 455-460
In this study, soil specimens with developed root systems of herbaceous plants were prepared and subjected to a freeze-thaw cycle, followed by erosion resistance tests. The test results show that erosion resistance was increased by the plant root system and the depth of erosion was significantly reduced in the unfrozen specimens. This erosion resistance increased with increasing root system content in the specimen. The stems and leaves were also confirmed to have a significant erosion control effect. In addition, the erosion resistance by the plant root system was reduced by frost heaving and erosion depth was increased in the specimens subjected to a freeze-thaw cycle.