shannon index 中文意思是什麼
shannon index
解釋
香農指數-
The results showed that the mean proportion of polymorphic loci ( ppb ) of anabasis aphylla, which comprised 3 subpopulations ( 58 individuals sampled ), generated by 16 primers was 94. 56 %, the value of ppb of ceratocarpus arenarius, which had 4 subpopulations ( 80 individuals sampled ), using 16 primers was 98. 00 %. the paper had proved that the higher genetic diversity and the genetic differentiation existed in the populations of boih anabasis aphylla and ceratocarpus arenarius, while the latter had much more genetic diversity than the former. moreover, the study discussed the shannon information index and nei ' s gene diversity index of the two species natural populations, which indicated that there were more genetic variations within the subpopu
另外，通過rapd資料的聚類分析及相關性分析研究，發現無葉假木賊和角果藜自然種群的遺傳結構與綠洲沙漠過渡帶的微生境生態因子（主要是土壤因子）相關，其中無葉假木賊亞種群遺傳多樣性水平不僅與土壤含水量（ w ） 、鉀鈉離子濃度（ k + na ）和氯離子濃度（ cl ）呈顯著的正相關（ p 0 . 05 ） ，還與土壤中有機質（ som ） 、全氮（ nt ）和全磷（ pt ）含量呈顯著的負相關；同時，角果藜種群的遺傳多樣性水平與土壤中有機質（ som ）和全氮（ nt ）含量呈顯著的正相關，而與co _ 3 ~ （ 2 - ）濃度呈顯著的負相關；除此之外，其它土壤生態因子與兩物種遺傳多樣性水平的相關性均不顯著（卜0 . 05 ） 。 -
Community ' s a diversity is measured by simpson diversity index, shannon - wiener diversity index and pielou evenness index. the results show that habitats range in a diminishing sequence of diversity indices from broadleaf forest, broadleaf bush, grassland bush to bamboo forest ; that altitude belts range from 600 - to - 1200 - m belt, under - 600 - m belt to 1200 - to - 1800 - m belt, and no longicorn beetles was found above 1800 m ; months from july, may, june to august, a diversity analysis shows that complicated habitats can hold higher biodiversity
結果表明，不同生境多樣性指數從高到低的順序是：闊葉林、闊葉灌叢、灌草叢、竹林；不同海拔多樣性指數從高到低的順序是： 600 ? 1200m區間、 600m以下區間、 1200 ? 1800m區間， 1800m以上區間暫未發現天牛科昆蟲；不同月份多樣性指數從高到低的順序是： 7月、 5月、 6月、 8月。 -
Shannon index showed biggest variations of populations was mignonette leaf on wulimu grass. 4
從shannon指數來看，群體變異程度最大的是五里木灰綠色羊草。 -
So must use information theory method depict and abundant the genetic diversity index system. in addition to, the introduce of molecule biology technology and the research of nucleotide sequence evolutive give a new method for population genetic, so must do deeply research about the analysis method of dna sequence data = the research main about the follows : there are three parts about the information model of population genetic : one about the shannon information entropy property of equilibrium population and the entropy change in the process of establish equilibrium ; another research is about the diversity measure - ment of genetic variation ; lastly, research the shannon information measurement about the disequilibrium gene variation. the result is : 1 to a definite gene distribution, the genotype entropy reach the maximum at the equilibrium population, the process of population from disequilibrium to equilibrium, the entropy get large and large
此外，分子生物技術的介入及核苷酸序列進化的研究都為群體遺傳學的深入研究提供了新的途徑，但關于dna序列數據的分析方法需要作進一步的研究。本研究主要體現在以下幾個方面： （一）關于群體遺傳學的信息論模型研究，主要分為三部分內容：一是群體平衡的shannon信息熵的性質和群體平衡建立的熵變性質；二是群體遺傳多樣性測度的研究；三是非平衡群體的基因變異測量shannon信息量的方法研究。得到了如下結論： 1 、平衡群體的shannon信息熵最大，群體平衡的過程是熵的增大過程。 -
The water quality state was evaluated with shannon - weaver index and some indicators of periphyton, and results showed that the nutrient type of daoguanhe rerservoir was mesotrophic type, and it had a tendency to develop to the eutrophic type
11 .依據周叢藻類多樣性指數及周叢生物某些指示種類評價該水庫水質狀態，判定為中營養型，並有向富營養級演化的趨勢。 -
The average of shannon - wiener diversity index was 1. 5481 in typical steppe abandoned land, which was only 55 % of natural grassland, while it was 1. 3492 in meadow steppe abandoned steppe
典型草原撂荒地shannon - wiener多樣性指數的平均值為1 . 5481 ，是天然草地的55 ，草甸草原帶撂荒地shannon - wiener多樣性指數的平均值為1 . 3492 ，是天然草地的50 。 -
A total of 145 rapd loci were obtained, of which 132 loci ( 91. 03 % ) were polymorphic. genetic diversity quantified by shannon index varied from 1. 50 to 2. 44 with an average of 1. 93 ; partition of genetic variability indicated that 69 % was distributed within, and 31 % among stocks
從40個1obp引物中選取20個用於群體遺傳多樣性分析，共檢測出145個位點，其中132個（ 91 . 03 % ）顯多態性;用shannon多樣性指數量化的平均遺傳多態度為1 -
Phalanx clonal plants possess stronger adaptation to stressful conditions. on the contrary, guerilla clonal plants seem to preference for warmer and wetter habitats such as swamp and meadow. in plant - spare habitats, shannon - wiener index increases with increasing importance of phalanx and guerilla clonal plants respectively
密集型克隆植物在高緯度、高海拔，寒冷、養分貧瘠生境中較豐富，如高山灌叢、草原，荒漠草原；同密集型克隆植物相比，游擊型克隆植物在低緯度、低海拔，相對溫暖、濕潤的生境中豐富度較高，如水生植被、草甸。 -
2479 at species level, and they were 0. 2182, 0. 1684 and 0. 1881 at population level. the result of shannon " s information index analysis was correspondent with the result of nei " s gene diversity index analysis
其基因流的期望值達1 . 6899 ，從理論上講，若nm 1 ，群體間的基因交流可以防止遺傳漂變造成的群體分化。 -
H " was calculated using the shannon - wiener formula : h " = ? pi ? pi e was calculated using the pielou ' s evenness index e : e = h ' hmax = h ' ? s the results showed that diversity index on different parent materials varied between 0. 49 to 1. 02, the different parent materials followed the sequence of igneous rock > sedimentary rock > metamorphic rock > unconsolidated material ; the evenness index on different parent materials varied between 0. 27 to 0. 64, the parent materials followed the sequence of igneous rock > sedimentary rock > metamorphic rock > unconsolidated material
多樣性指數運用shannon指數公式計算，均勻度指數運用pielou指數公式計算。分析結果表明發育于不同母巖上的多樣性指數范圍為0 . 49 1 . 02之間，從高到低依次為火成巖、沉積巖、變質巖和疏鬆物質；土壤均勻度指數范圍為0 . 27 0 . 64之間，從高到低依次為火成巖、沉積巖、變質巖、疏鬆物質。 -
Choosing hanzhong region as investigating region, the species of acridoidae as object, by the means of systematic research, location research, seasonal research and full - scale research, the student studied the biodiversity of acridoidae in hanzhong according to the results of analysis and clustering by use of software tools such as excel and spss on the biodiversity indexes including species richness index ( ds ), shannon - wiener index ( h " ), simpson index ( a. ) and pie index, and pielou index ( e )
本研究以漢中地區為研究范圍，以蝗總科acridoidae昆蟲對象，通過系統調查、定點調查、季節調查和全面普查等為研究手段，應用excel電子表格和spss等工具軟體對調查數據進行聚類和分析，選擇物種豐富度指數、 shannon ? wiener信息多樣性指數（ h 』 ） 、 simpson優勢度指數（ ） 、 pielou均勻度指數（ e ） 、種間相遇機率（ pie ）和物種多度等多樣性研究指標研究了漢中地區蝗總科生物多樣性。 -
Shannon index showed biggest variations of populations was grayer leaf on green grass
從shannon指數來看，群體變異程度最大的是綠色草原灰色羊草。 -
Then the genetic distance and shannon information index among these 13 strains were obtained by using the software popgen2 on the basis of pcr - rflp patterns. the phylogenetic tree was constructed by using the upgma algorithm method ( mega2 software package ). the shannon information index indicated that there was a higher genetic diversity among the frankia strains and some strains had a big genetic distance with others
根據酶切圖譜，通過popgen2軟體計算各供試菌株之間的遺傳距離；用shannon信息指數計算種群遺傳多樣性；利用upgma法（ mega2軟體）對所獲得的遺傳距離矩陣進行聚類分析，得到13株供試frankia菌株間系統發育的聚類分析樹狀圖譜。 -
At the same time, the result of the functional diversity of soil microbial community indicated that soil microbial metabolism quotient ( awcd ), microbial community richness and shannon index all decreased significantly in red soils polluted by cadmium and lead compared with non - polluted soils. these results suggested the structure of microbial community have changed, decreased the functional diversity of microbial community, and reduced the microbial number utilizing different carbon resources
Biologgn測試結果顯示，鎘、鉛污染紅壤微生物群落代謝剖面（ awcd ）及群落豐富度、多樣性指數均顯著低於非污染土壤，表明重金屬污染引起了土壤微生物群落功能多樣性下降，減少了能利用有關碳源底物的微生物數量、降低了微生中義摘要物對單一碳源底物的利用能力，最終導致土壤微生物群落功能多樣性發生變化。 -
Primers of ecori were signed with fluorescent dye and four pairs of primers were selected from twenty - four pairs. 261 dna fragments were generated by the four pairs of primers in forty - three individuals sampled. percentage of polymorphic bands is 51 %, the value of shannon index ( i ) is 0. 086 and nei ' s gene diversity ( h ) is 0. 151
統計這些aflp表型帶標記，用popgene軟體計算各種多樣性數據（ ppb值為51 ， shannon多樣性指數為0 . 086 ， nei ' s基因多樣性值為0 . 151 ） ：用ntsys軟體計算各個樣品間的相似性系數，並用upgma法基於相似性系數進行聚類分析，構建樹狀圖，它們可反映出元寶山冷杉種群內個體間的遺傳關系。 -
Qualitative and quantitative investigation ( visual encounter surveys ) of terrestrial mollusca were carried out in each sampling site of mangshan nature reserve and babaoshan of guangdong. all terrestrial mollusca in each sampling site were collected and identified. a list of the name of the species of terrestrial mollusca, margalef species richness index ( d _ ( ma ) ), shannon - wiener index ( h " ) and pielou evenness index ( jsw ) were used to analyze their biodiversity
對各個採集點的陸生貝類不但進行了定性調查，而且進行了定量調查（ ves法） ，對調查採集到的陸生貝類物種進行編目，並採用margalef豐富度指數（ d _ （ ma ） ） 、 shannon - wiener多樣性指數（ h 』 ） 、 pielou的均勻度指數（ jsw ）對陸生貝類多樣性進行了分析。 -
Based on plant communities and plots investigation in jinfo mt. and experimental site in guilin, the author calculated the indices of every plot with its species richness index, simpson index, shannon - wiener index, pielou evenness index and alatalo evenness index. the author analyzed the character and variation of the biodiversity in different area and different layers about the plots in jinfo mt
1採用典型樣方法，在金佛山和桂林實驗場選取典型樣地並做野外調查，分別計算各樣地的物種豐富度指數、 simpson指數、 shannon - wiener指數、均勻度指數、 pielou均勻度指數、 alatalo均勻度指數，對金佛山不同地區樣地生物多樣性以及不同地區不同層次生物多樣性特徵和變化進行分析。 -
By shannon index evaluation, 29. 25 % of genetic variation was between populations and the differentiation among populations was at a high level, in comparison with other species, such as s. grandis
Shannon指數估測有29 . 25的遺傳變異存在於種群間，種群間的遺傳分化較高。 -
Richness index, evenness index and diversity index were selected as indicators of pedodiversity. here we used shannon index ( h " ) as diversity index and pielou index ( e ) as evenness index
土壤多樣性指數包括豐富度指數（特定區域內發育的土類數目） 、多樣性指數（ h ）和均勻度指數（ e ） 。 -
Total genetic diversity by shannon index was 0. 5240, mean genetic diversity within subpopulation was 0. 4437, genetic diversity within subpopulation accounted for 84. 67 % of ' total genetic diversity, and that among subpopulations accounts for 15. 33 %, that is 85 % of genetic variation within subpopulation, and 15 % among subpopulations
為了從更大尺度和更深層次上理解生態過渡性與遺傳變異過渡性的聯系，我們對該過渡帶的梭梭、堿蓬和叉毛蓬三種植物的遺傳變異進行了rapd分析。結果顯d 。 ， 。
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