| Summary: | 碩士 === 國立嘉義大學 === 土木與水資源工程學系研究所 === 99 === This study utilizes the papermaking sludge to cultivate grass in porous concrete. The porous concrete was made of coarse gravel and had a porosity of 0.3. Papermaking sludge was mixed with soils with the ratios of 0%, 25% , 50% , 75% , and 100%. Bermuda grass, Tall Fescue, and Perennialrye grass were selected as trial seeds.
Experimental result shows that all grass grown better for full-day sunlight than that of 4-hour sunlight. Different papermaking sludge mixes had least-obvious differences in germination rate. However, the increase of papermaking sludge’s quantity would reduce the germination speed. This shows that sludge would affect seeds’ germination speed but does not affect its germination rate. Full-day sunlight is benefit for foot length, grass seeds’ germination, root density, root penetration, and grass growth. The coverage rate in the 40th day was equivalent or above 95% .As described above, applying the papermaking sludge into porous concrete can assist grass seeds’ growth and root development. With improved plant-growth, the papermaking sludge in water and soil conversation engineering.
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