biotic index 中文意思是什麼
biotic index
解釋
生物指數法-
To understand the relationships between the benthos, sessile organisms and the constructions of artificial shallow water zone, the performance of the benthic index of biotic integrity ( b - ibi ) was used to analysis the ecological status
結果顯示： （ 1 ）底棲生物及附著生物皆可反映海岸淺灘生態環境的生態現況，適合作為生物指標。 -
Two methods were used to provide water quality ratings in bio - assessment using biotic index ( bi ), ( 1 ) using the sampled sites meet the criteria for undisturbed and minimally impaired conditions, the confidence in the distribution of bi value for the 75th percentile to be used as the criterion dividing " unimpaired " form " impaired ". any values below the 75th percentile were considered as " excellent ", and values above the 75th percentile, was quadrisected for different water quality ratings
採用兩種方法研究m指數劃分水質級別的標準： （ 1 ）無污染樣點的m指數值法，以75分位數值作為最清潔水質標準，將高於此值的可能分佈范圍一等分，分別代表不同的水質級別zk ）所有樣點（污染與無污染樣點）的bi指數值法，以5分位數值作為最清潔水質的標準，將高於此值的可能分佈范圍4等分，分別代表不同的水質級別。 -
Results demonstrate that with the succession going on from herbosa shrubs coniferous forest theropencedrymion evergreen broad - leaved forest, abundance and diversity index of species, biomass and productivity of vegetation all show a rising trend prior to the formation of a mature and stable biotic climax
結果表明：隨著草叢灌叢針葉林針闊混交林次生常綠闊葉林正向演替的進行，在未形成成熟而穩定的頂極群落之前，物種豐富度、物種多樣性指數、植被生物量及生產力都呈增大趨勢。 -
This thesis dealt with the tolerance value of benthic macro - invertebrate taxa, bio - assessment criteria in water quality using biotic index in china, and the establishment of benthic index of biotic integrity ( b - ibi ) in the health assessment of stream ecosystem. a comparison of the number of species, individuals and values of metrics between quantitative and semi - quantitative sampling methods were also studied
並對溪流定量采樣法（索伯網樣）和半定量采樣法（踢網樣加d形抄網樣）進行了比較研究一、溪流底棲動物定量和半定量采樣法比較研究溪流底棲動物定量采樣多用於溪流生態學研究，半定量采樣法主要用於溪流水質生物評價研究。
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