Overmyer Jay P, Noblet Raymond, Armbrust Kevin L
University of Georgia, Department of Entomology, 413 Biological Sciences Building, Athens, GA 30602, USA.
Environ Pollut. 2005 Sep;137(2):263-72. doi: 10.1016/j.envpol.2005.02.006.
To determine the potential impacts of lawn-care pesticides on aquatic ecosystems, the macroinvertebrate communities of six streams were assessed using a multimetric approach. Four streams flowed through residential neighborhoods of Peachtree City, GA, USA, with differing mean property values and two reference streams were outside the city limits. A series of correlation analyses were conducted comparing stream rank from water quality and physical stream parameters, habitat assessments, benthic macroinvertebrate metric, pesticide toxicity and metal toxicity data to determine relationships among these parameters. Significant correlations were detected between individual analyses of stream rank for pesticide toxicity, specific conductance, turbidity, temperature and dissolved oxygen with benthic macroinvertebrate metrics.
为了确定草坪护理用农药对水生生态系统的潜在影响，采用多指标方法对六条溪流中的大型无脊椎动物群落进行了评估。四条溪流流经美国佐治亚州桃树城的居民区，这些居民区的平均房产价值各不相同，另外两条参照溪流位于城市界限之外。进行了一系列相关性分析，比较了水质和溪流物理参数、栖息地评估、底栖大型无脊椎动物指标、农药毒性和金属毒性数据得出的溪流排名，以确定这些参数之间的关系。在对农药毒性、电导率、浊度、温度和溶解氧的溪流排名与底栖大型无脊椎动物指标的单独分析之间检测到了显著相关性。
