赤泥对土地处理系统中植物除磷效果的影响研究

将赤泥按0％、2.5％、5％、7.5％、10％的重量比例与土壤混合,考察赤泥掺混对土地处理系统中植物除磷效果的影响.结果表明,赤泥从生物量以及磷吸收两方面影响植物除磷.适量的赤泥掺混可提高植物生物量,掺混比为5％时生物量最大.另一方面,赤泥掺混越多,对植物磷吸收的抑制也越大.总体效果上,掺混比例为5％时,黑麦草和高羊茅...

Influence of Red Mud on Phosphorous Removal by Vegetation Assimilation in Land Treatment System

Red mud was mixed with soil at mass ratio of 0%, 2.5%, 5%, 7.5% and 10%, in order to study the influence of red mud on phosphorous （P） removal by vegetation assimilation. The results showed that P removal by vegetation assimilation was influence by red mud in two aspects. First, opportune red mud could improve the biomass of vegetation, such as the 5% mix ratio in this study. Second, more red mud mixed in soil, less P content was found in the vegetation. Overall, when the red mud was mixed with the 5 % ratio, P removal by vegetation assimilation was the highest with 16.13 mg, 13.52 mg in Lolium perenne and Festuca arundinacea respectively. And also, P accumulated in the leaves was the highest in these two vegetations, with 10.75rag and 9.0ling respectively. meant that the land system for phosphorous （P） removal would be most advantageous when the soil at 5% ratio The results of the study red mud was mixed with