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丝兰(Yucca gloriosa)别名凤尾兰,是百合科的多年生丛生常绿植物,在空气污染严重的地区,它是不怕浓烟毒雾的佼佼者。丝兰生长快,叶片革质硬挺,表面有较厚的蜡质层,对有害烟气如二氧化硫、氟化氢、氯气、氨气等有很强的抗性。据试验,在二氧化硫日平均浓度为0.15毫克/立方米的环境条件下,构树、桧柏、石楠、女贞、迎春、泡桐、丝棉木等十多种植物叶片出现严重受害症状时,丝兰叶片无明显的伤害斑。在排放氯气的电解车间周围,蔷薇、棕榈、蚊母树受氯气的危害呈现出不同程度的伤害斑,女贞受害全部叶片掉落,生长在
Yucca gloriosa is a perennial evergreen evergreen of Liliaceae. It is a leader who is not afraid of toxic smoke in areas where air pollution is a serious problem. Yucca grows fast, leaves leather stiff, thick waxy surface, harmful fumes such as sulfur dioxide, hydrogen fluoride, chlorine, ammonia and other strong resistance. According to the test, when the daily average concentration of sulfur dioxide is 0.15 mg / m3, the symptoms of severely injured leaves such as tree, cypress, heather, privet, spring, paulownia, Orchid leaves no obvious damage spots. In the discharge of chlorine around the electrolysis plant, roses, palms, mosquito trees by the chlorine hazards showed varying degrees of damage spots, privet victimized all the leaves fall, grow in