| 摘要 |
PROBLEM TO BE SOLVED: To provide a forestation method for a high hard acidic slope capable of efficiently greening the high hard and acid cut-soil slope with a tree. SOLUTION: This is a method to green a high hard acidic slope 1 index hardness measured by a Yamanaka's system penetrometer of which is more than 24 mm and soil of which shows acid by trees, Thereby, an acid interrupting layer 3 is formed by erecting a wall body 2 for topsoil retention on the slope 1 and laying an alkalic material 31 on the slope 1 on the mountain side of the wall body 2, topsoil 5 is filled between the wall body 2 and the acid interrupting layer 3, and a sapling 6 of a tree is planted on the topsoil 5.
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