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首页> 外文期刊>Environmental toxicology and chemistry >RESPONSES OF FOLSOMIA FIMETARIA (COLLEMBOLA: ISOTOMIDAE) TO COPPER UNDER DIFFERENT SOIL COPPER CONTAMINATION HISTORIES IN RELATION TO RISK ASSESSMENT
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RESPONSES OF FOLSOMIA FIMETARIA (COLLEMBOLA: ISOTOMIDAE) TO COPPER UNDER DIFFERENT SOIL COPPER CONTAMINATION HISTORIES IN RELATION TO RISK ASSESSMENT

机译：不同土壤铜污染历史下复叶复叶对复叶铜的反应与风险评估的关系

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摘要

The collembolan Folsomia fimetaria L. was exposed in the laboratory to a range of elevated soil copper concentrations under two different contamination histories. These results were compared with the in situ abundance of F. fimetaria in a copper- contaminated field site. In the laboratory studies, an ECl0 of 337 mg Cu/kg was observed fOr soil spiked with copper l d before the experiment. Using soil from a field site contaminated with copper more than 70 years previously, no effect was observed at concentrations as great as 29ll mg Cu/kg. Reproduction was threefold more sensitive than mortality or growth. Differences in copper sensitivity between sexes and between juvenile cIutches were also indicated. The abundance of F. fimetaria showed no change with soil copper concentrations during the first year (spring sampling) of in situ observations. During the second year (autumn sampling), a reduced number per area was observed with increasing soil copper concentrations. Both the presence and abundance of other euedaphic collembolans generally exhibited distribution patterns similar to those of F. fimetaria. Thus, the contamination history and the toxicological endpoint were very important for interpreting the outcome of the standard laboratory toxicity test. Laboratory studies to some extent reflected the in situ abundance, but this depended on the contamination history and the field sampling time. Laboratory experiments using new copper-spiked soil provided the lowest effect levels.
机译：在两种不同的污染历史下，collembolan fiolsomia fimetaria L.在实验室中暴露于一系列升高的土壤铜浓度下。将这些结果与铜污染现场现场的F. fimetaria的丰度进行了比较。在实验室研究中，实验前在掺铜的土壤中观察到的ECl0为337 mg Cu / kg。使用超过70年以前来自被铜污染的田地的土壤，当浓度高达29ll mg Cu / kg时，未观察到任何影响。繁殖比死亡率或生长敏感三倍。还指出了性别之间和青少年离合器之间铜敏感性的差异。在现场观测的第一年（春季采样）中，F。fimetaria的丰度没有随土壤铜浓度的变化而变化。在第二年（秋季取样），随着土壤铜浓度的增加，每单位面积的数量减少。其他euedaphic collembolans的存在和丰富都通常表现出与F. fimetaria相似的分布模式。因此，污染历史和毒理学终点对于解释标准实验室毒性测试的结果非常重要。实验室研究在某种程度上反映了原位丰度，但这取决于污染历史和现场采样时间。使用新型掺铜土壤的实验室实验效果最低。

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