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биотический индекс
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[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en] |
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biotic index
Scale for showing the quality of an environment by indicating the types of organisms present in it (e.g. how clean a river is). (Source: PHC)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en] |
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