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树木生理变量作为重金属和白金组元素的代理城市地区的污染

Zulema Varela¹, Javier Martínez-Abaigar², Rafael Tomás-Las-Heras²

¹CRETUS, Ecology Unit, Department Functional Biology, Faculty of Biology, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.

|September 28, 2023

概括

在Ligustrum lucidum树的生理活力指标并不总是反映重金属或组元素 (PGE) 污染. 低污染水平和植物耐受性限制了可观测的应激反应,质疑它们作为污染代理的使用.

科学领域:

环境科学环境科学
植物生理学植物生理学
城市生态城市生态学

背景情况:

评估城市树木健康对于监测环境质量至关重要.
生理变量和重金属/PGE在叶子中的积累可以表明植物的压力和污染暴露.
柳 (Ligustrum lucidum) 是一个常见的城市树种,因此它是一个合适的生物指标.

研究的目的:

评估生理变量 (叶绿素,黄,,F_v/F_m) 作为城市树木中重金属和组元素 (PGE) 污染的代理物的充分性.
研究植物活力指标与Ligustrum lucidum叶子中特定污染物的积累之间的关系.

主要方法:

在Ligustrum lucidum叶子中测量生理变量 (叶绿素,黄,,F_v/F_m) 和重金属 (As,Cd,Cu,Hg,Mn,Ni,Pb,Sb,V,Zn) 和PGEs (Pd,Rh).
主要成分分析 (PCA) 分析生理数据和污染物度之间的相关性.
在西班牙北部Logroño的50个个体中评估植物反应.

主要成果:

活力指标 (叶绿素,,F_v/F_m) 通常显示高值,表明健康的植物,并且与污染物水平不一致相关.
黄酸含量与重金属占主导地位的PCA因素呈负相关性,不支持其作为金属应力保护剂的作用.
F_v/F_m与PGE主导的PCA因素的负相关性较弱,损害门以下的树木没有显示出高PGE含量.

结论:

在Ligustrum lucidum中的生理变量不是Logroño重金属和PGE污染的可靠代理因低污染水平和植物耐受性.
环境因素和物种特异性耐受性影响观察到的对城市污染的生理反应.
可能需要进一步的研究来确定更敏感的生物指标,以评估城市污染.

关键词:

在Ligustrum lucidum中发现了明亮的光线.生物监测生物监测催化转换器催化转换器帕拉是一种.是的元素之一.

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