| 摘要 |
FIELD: ecology. ^ SUBSTANCE: invention relates to the terrestrial biota monitoring with the help of bio-indication method and can be used for information achieving about degree of ecological system damage as a result of anthropogenic factor impact on natural consocietums. Level of anthropogenic impact is defined according to the medium frequency index of asymmetric emergency of elements "", "", "" and "" of melinised picture of Pyrrohocoris apterus cover (IA) according to formula IA=SigmaXi/n, where Xi - number of asymmetric signs in every individual, divided on the number of used signs, n - number of individuals in selection. During receiving of IA definition, is less than 0.0500 the environment under consideration is related to the first quality class - conditional norm; when IA is equal from 0.0501 to 0.1036 environment under consideration is related to the second quality class with weak anthropogenic impact; when IA is from 0.1037 to 0.1572 the environment under consideration is related to the third quality class with middle anthropogenic impact; when IA is from 0.1573 to 0.2108 the environment under consideration is related to the fourth quality class with strong anthropogenic impact; when IA is more than 0.2108 the environment under consideration is related to the fifth quality class with critical level of anthropogenic impact. ^ EFFECT: method provides objectivity of received results, performing ability of retrospective and perspective analysis of biota ecological condition. ^ 3 dwg, 1 tbl, 1 ex |
