@article{oai:soar-ir.repo.nii.ac.jp:00011301, author = {辰野, 良秋 and 堀内, 照夫}, journal = {信州大学農学部演習林報告}, month = {Aug}, note = {The mechanism of soil erosion caused by frost heaving is different from that which is usually credited, and that's actions are very violent. This paper is observation on the frost actions between from 1966. 11 to 1968. 3, the results are summarized as follows: (1) Mechanism of soil erosion The soil on the slope lose cohesion and adhesion, since the ground suface of slope are subjected repetitional actions freezing and thawing, dried up by priciple of lyophilization, and then fall down. (2) Topographical factors influence of soil erosion (a) Soil erosion caused by frost heaving show activity on even slope under the angle of repose which is generally settled and as slope is steep that's volume increased with in proportion a geometrical progression. (b) Volume of soil erosion increased with the slope length become long on above the angle of repose, but effects of slope length decreased under the angle of repose. (c) Volume of soil erosion for one winter reason running was least repeatedly found out on the north slope and it's frequencies increased in order of the south, the east and the west slope. (3) Works for soil erosion The most effective method was to cover the ground surface with mulches as straw and vegatation etc. to intercept the themic and dry condition., Article, 信州大学農学部演習林報告 6: 57-78(1969)}, pages = {57--78}, title = {山腹工作物の凍害防止に関する研究 : 侵食土砂量に影響する因子の検討}, volume = {6}, year = {1969} }