Method for surface soil stabilization on the collapsed slope using natural vegetation activity and the water-retentivity

植被层被用作表层土壤的防蚀层之一。然而，这种方法有缺点，比如有较好的季节。此外，坡面上的强降雨会冲刷植被片中的种子和养分，从而阻碍植被的生长。本研究提出了一种暂时稳定地表土壤直至种子从植被层萌发的方法。该方法使用不影响斜坡和周围环境的加工液体材料。通过对植被活动性和保水性的室外和室内测试，明确了该方法的适用性和局限性。

The vegetation sheet is being used as one of the erosion prevention of the surface soil. That method, however, has disadvantages such as that there is the preferable season. In addition, both the seed and the nutrient contained in the vegetation sheet are flushed by the heavy rainfall on the slope, then the growth of vegetation is obstructed. In this study a method of temporarily stabilizing the surface soil until the seed germinates from the vegetation sheet was proposed. This method uses the processing liquid material that doesn't influence a slope and surrounding environment. As the result of outdoor and laboratory testing concerning the vegetation activity and water retentivity, the applicability and the limitations of this method have made clear.