利用生理生化参数评估植物对空气污染的敏感性

G. S. Prasath, M. Alga, Celine Rebellow, A. Subramani, Psidium Guajava
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摘要

植物是绿化带的主要强化成分。绿色植物形成的表面可以吸收空气中的污染物,成为污染物的吸收汇,使绿化带成为控制空气污染的有效方法。因此,需要重视在污染地区推广和发展绿化带。目前的研究重点是评估已在污染和未污染地区生长的芒果、榕树、番石榴和柿树对空气污染的耐受水平。通过考虑总叶绿素水平、抗坏血酸水平、pH 值、含水量等生化指标,计算出了空气污染耐受指数(APTI)。APTI是一种经验关系,用于评估不同植物物种对空气污染的耐受程度。APTI值小于或等于11的植物被称为敏感性植物,介于12至16之间的为中度耐受性植物,大于17的为耐受性植物。研究结果表明,籼稻的耐受性更强。研究中使用的其他植物被发现具有间歇性耐受性。从这项研究中可以得出结论,在城市地区种植芒果、番石榴、鹅掌楸和榕树可以减少空气污染。这项研究还得出结论,使用 APTI 评估来鉴定耐受空气污染的植物是一种合适的方法。
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Assessment of Plants Sensitivity to Air Pollution using Physiological and Biochemical Parameters
Plants act as a main green belt enhancement component. Green plants create a surface that may absorb air pollutants and act as a sink for them, making greenbelts an efficient method of controlling air pollution. Thus attention is needed to promote and develop green belt zones in polluted areas. The current study is focused on evaluating the air pollution tolerance levels of Mangifera indica, Ficus religiosa, Psidium guajava, Annona squamosa already grown in polluted and unpolluted sites. By taking into account biochemical markers such as total chlorophyll level, ascorbic acid level, pH, water content, the Air pollution tolerance index (APTI) was calculated. APTI is an empirical relationship that assesses the degree to which different plant species can tolerate air pollution .Plants that possess APTI value less than or equal to 11 are known as sensitive, between 12 and 16 are moderately tolerant and greater than 17 are tolerant. The results obtained from the study showed that M. indica is more tolerant in nature. The rest of the plants used in the study are found to be intermittently tolerant. From this study, it can be concluded that planting Mangifera indica, Psidium guajava ,Annona squamosa, Ficus religosa in urban areas can reduce air pollution. This study also concludes that use of the APTI evaluation for the identification of air pollution tolerant plants is a suitable method.
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