| 摘要 |
PROBLEM TO BE SOLVED: To provide a recycling process of stripped topsoil which prevents the leaching of nitrate nitrogen effectively and that of an aluminum oxide effectively. SOLUTION: The recycling process of the stripped topsoil is capable of preventing the leaching of nutrients such as the nitrate nitrogen, aluminum oxide and the like by conducting the nutrition analysis of soil of the stripped topsoil and conducting the preparation design of the plant organic substances and animal organic substances, so that the design and control to the degree of the base saturation of 60-100 mass% is possible. Thus, the topsoil can be recycled effectively without disposing them as general wastes when the stripped topsoil such as the side-slope of road and river in engineering and earth works or exterior construction works is recycled. The cost reduction in the construction which satisfies the needs in nowadays can be accomplished by eliminating the conventional waste transporting cost and disposing cost as the waste disposal. COPYRIGHT: (C)2007,JPO&INPIT |
