添加剂用量对人工土壤生态特征影响的研究

Effect of Additive Amount on Ecological Characteristics of Artificial Soil

文章利用铁尾矿、pH调节剂及堆肥(污泥)、保水剂等构建人工土壤,通过优化调整水泥和pH调节剂含量进行试验考察植物的生长情况。以沙打旺、高羊茅、多花木兰和紫穗槐作为试验植物,分析植物的成活数、株高、地上部干重、地下部干重4个指标。就单一作物而言,沙打旺的适宜人工土壤配比为D6M12,高羊茅的适宜人工土壤配比为D6M12,多花木兰的适宜人工土壤配比为D6M18,紫穗槐的适宜人工土壤配比为D6M12,而4种作物混种情况下适宜的人工土壤配比为D6M12。

Iron tailings, pH regulator, composting sludge and super absorbent polymers are main materials to build the vegetation concrete. With Astragalus adsurgens, tall rescue, Magnolia multiflora and Amorpha as experimental plants, the content of cement and pH regulator were changed to investigate the survival number, plant height, aboveground dry weight, underground dry weight, and evaluate the ecological characteristics. As for the single crop, the suitable artificial soil proportioning for Astragalus adsurgens is D6M12, the suitable artificial soil proportioning for tall fescue is D6M12, the suitable artificial soil proportioning for Magnolia multiflora is D6M18,the suitable artificial soil proportioning for Amorpha is D6M12. The ideal artificial soil proportioning for the four plants is D6M12.