植物监测是指利用对大气污染反应灵敏的指示植物来了解大气环境质量状况。
当植物监测到那些有害物品时就会激发内信号，使叶子从绿色变成白色。
The plant detects the substance and activates an internal signal that causes it to lose its green colour, turning its leaves white.
和传统的监测方法相比，利用植物监测大气污染物是一种经济、简便而且可靠的方法。
Monitoring air pollutants via plants is an economic, convenient and credible method compared with the traditional ways.
对园林植物对城市大气污染的反应、监测作用以及园林植物监测城市大气污染的前景等几个方面进行了概述。
The thesis reviewed the reaction, monitoring of landscape plant to air pollution in city and the prospect of monitoring of landscape plant to air pollution in city.
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