bio-indicator

基本解释

As the bio-indicator, soil organisms perform the environmental quality monitoring and evaluation of soil polluted by heavy mental and agrochemicals.
在土壤环境受到农药和重金属等污染后，作为生物指标，土壤生物在监测和评价环境质量发挥着重要作用。
Soil microorganisms play an important part in maintaining soil quality. Soil microbial biomass represents the labile pool and can be used as a bio-indicator for evaluating soil quality.
土壤微生物是维持土壤质量的重要组分，土壤生物学指标能敏感地反映土壤质量的变化，土壤微生物量是土壤质量评价的一个重要的生物学指标。
Dr Sneddon comments, "Sheep wool evidently has potential as a bio-indicator of naturally occurring heavy metal concentrations in upland areas, which have previously not been assessed in this way".
Sneddon 博士评论认为：“羊毛显然可以作为丘陵地区重金属污染的生物指示剂，而以前这一特点一直都没有被注意到。”

Frogs, which breathe and process toxins through their skin, are considered a promising area for pharmaceutical research and a bio-indicator that can tell scientists about what's going on in the environment.
NPR: Alarm Over Vanishing Frogs In The Caribbean