农业废弃物替代生态护坡基质中泥炭的效果研究

Study on the Effect of Agricultural Wastes as Substitute for Peat in Materials of Slope Ecology Protection

针对护坡基材中泥炭价格高而导致护坡工程造价高的问题,在盆栽条件下,用秸秆、牛粪、食用菌渣、污泥等农业废弃物代替泥炭,研究各种基质对草生长及其养分变化的影响。结果表明,几种农业废弃物的养分含量均能满足植物生长需求,对草种发芽有一定促进作用,植物生长2个月后混合基质处理和污泥处理长势最好,平均株高大于8cm,覆盖率95%以上,对照处理覆盖率低于30%。用污泥、秸秆、牛粪、菌渣等废弃材料的各处理养分含量最后稳定在较高水平,可作为优质价廉的护坡基质材料。

In view of the problem of slope protection＇s high cost which results from high cost of peat, the pot experiment on grass was carried out with the muck, the straw stalk, the cow dung, the waste of mushroom that replaced the peat coal to study the effects on grass growth and nutrient change of various materials. Through eight month-long the long-term experiment, the result indicated that several solid rejects＇ nutrient content can satisfy the plant growth of the long-term demand, and boost seeds coming up. 60 days later, the muck group was best and the mix material next, they were 8 cm tall in average coverage rate above 95%, and comparison group coverage rate under 30%. With the muck, the straw stalk, the cow dung, the waste of mushroom and so on to use as the peat coal, the result was that nutrient content stabilize in the high level finally, and those material may become the high quality material which substitute the peat coal.