| Summary: | 碩士 === 國立中興大學 === 水土保持學系 === 92 === There are numerous kinds of hydroseeding technique in Taiwan as president, among them, the applied fiber of Polisoil usually used with mechanical fiber. But mechanical fiber usually jammed into the spraying tools while constructing, we also contain further investigative space with regards to slopeland protection. For example, the applied fiber for consecution fiber of hydroseeding technique is used in filament. So this research makes use of regenerated fiber introduced in recent years, and the general applied mechanical fiber, used both of them to make a study of soil erodibility and plant germination. Besides, we can make use of bursting strength tests and permeability extent tests to understand the distinguishing situation of mechanical fiber and regenerated fiber. The results are summarized as following:
1.When the germination rate in same density of Polysoil , the germination will be raised after adding fibers. Under the same term, the germination of regenerated fiber is closed to the germination of mechanical fiber.
2.In this erodibility experimenting comparing for regenerated fiber and mechanical fiber, it shows that regenerated fiber added Polisoil have the better conservation result to the soil obviously. But no matter is regenerated fiber or mechanical fiber to the conservation result of the soil compares simple Polisoil much.
3.Permeability extent of fiber is used for the type of judging the fiber mainly, it also distinguish regenerated fiber with this and mechanical fiber. The result of experiment can estimate permeability extent of mechanical to lie in 900 cc~1000 cc, and regenerated fiber lies in 550cc~650cc.
4.It indicates when fibers mutually have more strong combined ability, then it will have more strong bursting strength, the bursting strength of the regenerated fiber is 7.7kgf/cm2, and the mechanical fiber is 1.6kgf/cm2. Bursting strength test can match permeability extent test to make the more accurate judgment for fiber type. Besides, this can be used as one of the judgment of estimating soil erodibility, on the other hand, when fibers have higher bursting strength, the more erodibility it will have.
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