污染物环境生态效应评价研究进展  被引量:5

Researches progress of environmentally ecological effect assessment of pollutants

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作  者:王长友[1,2] 王修林[3] 于文金 钟珊珊[1,2] 杨胜朋[1,2] 

机构地区:[1]南京信息工程大学气象灾害省部共建教育部重点实验室,南京210044 [2]南京信息工程大学大气科学学院,南京210044 [3]中国海洋大学化学化工学院,青岛266100

出  处:《生态学报》2009年第9期5081-5087,共7页Acta Ecologica Sinica

基  金:国家"973"资助项目(2001CB409703);南京信息工程大学科研基金资助项目

摘  要:总结了污染物环境生态效应评价的关键环节——生态受体选择、反应终点和评价参数确定等研究现状,分析讨论了这些环节目前存在的问题和今后的研究方向。个体和种群层次上的生态受体研究较为深入,相应的反应终点研究也较为成熟,但群落和系统层次上的生态受体研究较少,相应的反应终点还不能完整的表征其结构与功能发生的变化。应用能够完整反映生态系统功能及结构组织状态的反应终点,以生态系统为受体进行污染物环境生态效应评价是今后的研究方向。基于假设检验的NOEC只是一个实验设计浓度,不能构造置信区间;ECx由不同的数学模型计算的结果差异较大,置信区间随效应值x的降低而增大。研究综合假设检验与数学模型各自优点的评价参数估算方法是污染物环境生态效应评价的重要研究内容。The research progress of the key links of environmentally ecological effect assessment of pollutants, selection of ecological receptor, determinations of end point and assessment parameters are summarized. The problems in the current research and development trends in the near future are also discussed. Thoroughly research has been carried out on the ecological receptors based on the individual and population and their corresponding end points. However, the ecological receptors based on community and ecosystem drawn less concentration and the corresporjding end points can not exactly characterize the variation of their structures and functions. Further research on environmentally ecological assessment of pollutant would be concentrated on the ecosystem as receptor on condition that the end points are adequate to eharacterie ecosystem structure and function. Based on hypothesis tests, the NOEC,can only take the values of a tested concentration and can not produce confidence limits for it. The estimates of ECx depend on the selected models and its variation is significant. The confidence interval increases with decreasing effect size. It plays an important role in environmentally ecological effect assessment of pollutant to research estimation methodology of assessment parameter with a combination of advantages of hypothesis test with those of model.

关 键 词:环境生态效应评价 生态受体 反应终点 评价参数 假设检验 数学模型 

分 类 号:X826[环境科学与工程—环境工程]

 

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