PROBLEM TO BE SOLVED: To provide a stabilization method for a slope surface layer that inhibits collapsing due to freezing and thawing, and a seed germination-promoting method for promoting germination of mixed seeds.SOLUTION: Plant seeds 4 are added and agitated in a cotton-like raw bamboo fiber formed by compressing and pulverizing a raw bamboo tree using a double shaft compression pulverizer, for making a cushioning material free of an adhesive and holding the seeds 4 dispersed rotatably in an entangled cotton-like raw bamboo fiber body. The seeds are planted on a ground surface by installing the cushioning material on the ground surface. The seeds are held rotatably and movably in the entangled cotton-like raw bamboo fiber body, thereby preventing delay or inhibition of germination of the seeds. Flexibility of the cotton-like raw bamboo fiber is maintained over a long period, without being hardly affected by freezing and thawing or deterioration caused by ultraviolet rays.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2017,JPO&INPIT【課題】凍結融解作用による崩壊が生じにくい法面表層の安定化方法及び混合種子の発芽を促進する種子の発芽促進方法の提供。【解決手段】生竹の稈を二軸圧縮粉砕器により圧縮粉砕して形成した綿状生竹繊維に、植物の種子4を添加し攪拌することにより、種子4が、回転自在な状態で、綿状生竹繊維の絡合体内に分散して担持された、接着剤を含まないクッション材を生成し、該クッション材を地表に敷設することで前記種子を地表に植え付ける。種子は綿状生竹繊維の絡合体内に回転自在・運動自在な状態で担持され、種子の発芽が遅延又は阻害されることが防止される。綿状生竹繊維の柔軟性は長期間維持され、凍結融解作用や紫外線劣化の影響も殆ど生じない。【選択図】図4
