richness index 中文意思是什麼

richness index 解釋
富度指數
  • richness : 豐度
  • index : n （pl es dices ）1 索引。2 指標，標準，標志。3 示[食]指 （＝index finger）。4 指數。5 【印刷】指...
  1. Plant endemism is the key problem in floristic study. analysis of endemism in a flora has significant implications in demonstrating floristic richness and diversity, the relationship between plants and their environment, and also in conserving biodiversity of the flora. in view of the situation that most of the past studies on endemism were qualitative, this study is the first tentative approach to the introduction of quantitative indices to the analysis of floristic endemism, with an purpose to push the study of endemism from qualitative to quantitative. four quantitative indices are introduced, i. e. level of endemism ( l ), coefficient of endemism ( c ), degree of endemism ( d ) and general index of endemism ( a ). mathematical formulae have been given to each of the above indices and explanations for them have been presented, and the scope of their use in floristic studies has been delimited and exemplified in this paper. the result shows that they are of good applicability. the proposed indices embody full information of plant systematics and plant geography. with the aid of qualitative analysis, the application of the proposed indices will improve the comparability and precision of endemism study in floristics

    過去有關特有現象的研究主要限於定性的分析，可比性和精確性較差.該文嘗試引入特有現象的定量化指標，以推動特有現象的分析研究從定性水平向定量水平邁進.所引入的4種定量化指標分別是：特有水平、特有系數、特有度以及特有綜合指數.對每種量化指標都給出了數學表達式，說明了其區系學意義，例證和界定了這些指標在植物區系分析中的應用，結果表明，它們有良好的適用性.這些指標充分地包含了植物系統學和植物區系學的信息.結合定性分析，這些指標的應用將增強植物區系研究的可比性，使植物區系特有現象的分析達到更精確的水平
  2. Comparing with former prediction methods, there are two progresses in it. first, the concept of fracture richness index is advanced and thus extend of fracture ' s richness can be numerable

    與以前的預測方法相比，本次論文在以下兩個方面有了改進：第一，提出了裂縫發育指標的概念，從而能夠對裂縫發育程度進行量化。
  3. Soil microbial biomass and viable population size ( plant counts ) were negatively affected by the elevated metal levels, but the size of soil basal respiration rate and microbial metabolic quotients were positively influenced by the increasing heavy metal pollution levels. microbial community structure also changed with increasing contamination, as indicated by biolog data and principal component analysis of biolog community metabolic profiles. soil microbial metabolic profiles ( awcd ) values, community richness and diversity index in mine - soils decreased remarkably as compared

    相關分析結果表明，土壤重金屬含量和土壤基礎呼吸、微生物量cfn 、代謝剖面（ awcd ） 、微生物商（ cmic / corg ） 、代謝商（ qc02 ）與人工栽培的香根草植物地上部分呈顯著或極顯著正相關（卜0 . 6653飛0 . 8945 」 ） ;微生物量c 、微生物量n 、生化作用強度、酶活性、群落shannon指數（ h ）和微生物群落豐富度（ s ）與人工栽培的香根草植物地上部分生物量呈顯著或極顯著地負相關（ r =一。
  4. The species richness and diversity index order of coniferous and broad - leaf forest and evergreen broad - leaf forest in different geology plots was as follows : shrub layer > herb layer > tree layer ; in shrub plots, the order was herb layer > shrub layer. in general jsw, jsi and ea index order was herb layer > shrub layer > ree layer. that indicated that the species of tree and shrub in karst area distributing is not even, and the species, which are dominant and adapt to the karst environment are cleaer

    不同地區樣地針闊混交林和常綠闊葉林物種豐富度指數、多樣性指數均表現為灌木層草本層喬木層，而在灌叢樣地，物種豐富度和多樣性指數表現為草本層灌木層；整體上，石灰巖地區樣地jsw 、 jsi和ea指數為草本層灌木層喬木層；砂頁巖地區樣地為灌木層草本層喬木層。
  5. The research result is following : the annual species richness index of studied forest plant community averaged 64. 688, the species diversity index was 2. 982. the proportion of every functional group of forest plant community is : herbaceous layer ( average is 68. 89 % ) > tall tree layer ( average is 15. 266 % ) > shrub layer. ( average is 15. 845 % ) the proportion of every functional group in forest insect communities is remarkably different, and the order of the proportion is herbivorous insect group ( average 0. 729 ) > predatory natural enemy insect group ( average 0. 136 ) > parasitical insect group ( average 0. 135 ). with seasonal change, the proportion of herbivorous and predatory insect group decreased obviously, while that of parasitical insect group increased on average by 147 %

    研究結果如下：森林植物群落種的全年物種豐富度指數平均為64 . 688種，多樣性指數為2 . 982森林植物群落內各功能類群物種所佔比重依次為：草本層（平均為68 . 89 ） >喬木層（平均為15 . 266 ）灌木層（平均為15 . 845 ） 。森林昆蟲群落中，全年各功能類群所佔比重以植食性昆蟲類群為最大，平均佔0 . 729 ；捕食性昆蟲類群次之，平均佔0 . 136 ；寄生性天敵類群為最小，平均為0 . 135 。
  6. The result suggests that the species richness index ranks as following among 6 stations : yangma islet > drogan - whisker islet > moon bay > jingouzhai > jingouzhai gravel, and yangma islet possessed the highest species diversity index, while jingouzhai the lowest, the order of species diversity index among 6 stations is yangma islet > moon bay > drogan - whisker islet > jingouzhai > zhifu islet > jingouzhai gravel, the order of species evenness index is : moon bay > drogan - whisker islet > yangma islet > jingouzhai > zhifu islet > jingouzhai gravel

    紅藻群落的物種豐富度依次為：養馬島芝罘島龍須島月亮灣金溝寨金溝寨礫石灘；物種多樣性指數以養馬島為最高，金溝寨礫石灘最低，依次為：養馬島月亮灣龍須島金溝寨芝罘島全溝寨礫石灘；物種分佈的均勻度指數依次為：月亮灣龍須島養馬島金溝寨芝罘島金溝寨礫石灘。
  7. Analysis on the species richness and diversity index, community evenness in different plots and layers of evergreen broad - leaved forest in shiyang forest center in wencheng, zhejiang province resulted that species richness and diversity index, community evenness of the second sublayer of tree layer was much greater than that of the first sublayer in the vertical structure of the community

    對文成縣石?林場常綠闊葉林的不同樣地、不同層次的物種豐富度、物種多樣性指數和群落均勻度進行了分析，結果表明:在群落垂直結構中，喬木層第2亞層的物種豐富度、物種多樣性指數、群落均勻度顯著大於第1亞層。
  8. Biodiversity indices are much influenced by the types of the vegetation in jinfo mt. the species richness index, diversity index and evenness index of the plots in karst area raised when the plots were jamming early and slightly ; species richness index and diversity index of the plots in nonkarst area raised when the plots were jamming early and slightly, but evenness index fell. the diversity index and species richness index of original vegetation in karst area are lower than in nonkarst area

    不同植被類型顯著影響其生物多樣性的變化，金佛山石灰巖地區植被在受到中輕度人為干擾初期，其物種豐富度和多樣性、均勻度指數均有提高；砂頁巖地區植被受到中輕度干擾，豐富度和多樣性指數有所提高，均勻度指數呈相反趨勢；石灰巖地區原生植被生物多樣性和物種豐富度指數較砂頁巖地區的原生植被低。
  9. 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。
  10. The species richness and diversity index of the tree layer and the shrub layer was obviously higher than that of the herb layer, and their evenness had evident difference

    喬木層、灌木層的物種豐富度、物種多樣性指數均大於草本層，且差異極顯著，群落均勻度差異顯著。
  11. The results showed that : from north - facing slope to south - facing slope and plain field, the species evenness and diversity index decreased ; from plain field to north - facing slope and south - facing slope, richness index also decreased

    結果表明，當生境由陰坡向灘地到向陽坡變化時，各種多樣性指數的變化順序為，物種豐富度：灘地陰坡陽坡；均勻度和多樣性指數：陰坡陽坡灘地。
  12. 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。
  13. Combining the result with logging, exploiting information, using multiple mathematics methods such as cluster analysis, neural network, step - by - step linear regress, the paper found the relationship among seismic, logging, and exploiting information in well - control zone. moreover, we calculate fracture richness index. as a result, we can distinguish rich fracture zone from carbonate formation by fracture richness index in non - well - control zone

    結合測井、開發等資料，在有井點利用聚類分析、逐步回歸、神經網路等數學手段，建立了多種地震檢測結果與測井、開發等數據之間的定性、定量關系，計算出了研究區的裂縫發育指標，從而實現對無井區的縫洞預測。
  14. The results showed that, in the course of wasteland restoration, the cultivated vegetation grew well ; the plant species was increased from 13 to 60, and the richness index, evenness index and diversity index of species was increased significantly ; the proportion of annual and biennial herbage in vegetation composition was decreased from 61. 5 % to 35 %, and the vegetation coverage was increased from 18 % to 80 %

    結果表明：荒灘恢復過程中，人工植被長勢良好，植物種類由恢復前的13種增加到60種，群落物種的豐富度指數、均勻度指數、多樣性指數均比恢復前顯著提高；生活型譜中一、二年生草本植物的比例由恢復前的61 . 5 %降低到35 % ，植被蓋度由恢復前的18 %增加到80 % 。
  15. 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。
  16. 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。
  17. These diversity indexes indicate a trend - the more abundant and even the components and more complicated the habitats of the community, the higher value of these diversity indexes whether margalef species richness index ( d _ ( ma ) ), shannon - wiener index ( h " ), or pielou evenness index ( jsw ) were used to analyze the biodiversity of terrestrial mollusca. the change of shannon - wiener ( h " ) is accordant with species and margalef species richness index ( d _ ( ma ) )

    兩地區陸生貝類多樣性指數h夕與多樣性指數s 、苗劍的變化相一致，且s 、 h夕、或峨的值以莽山的紅旗橋和八寶山的五里坑為最高;陸生貝類均勻度指數（ js刃不受豐富度指數影響，但是均勻度指數影響多樣性指數h ， ，一般來說js ，高， h ，越高，但也有例外情況。
  18. The benthic macroinvertebrate dominant concentration gradually increases from 1 st to 6th order streams. the change trend of ept taxa richness and total taxa richness resembles to the change trend of shannon - wiener diversity index, and there is highest macroinvertebrate diversity in 4th order stream among 1st to 6th order streams in changjiang river

    一至六級支流底棲動物優勢集中性有逐漸升高的趨勢， ept分類單元數、總分類單元數與多樣性指數變化趨勢相似，總體上以4級支流的底棲動物多樣性最好。
  19. 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 ） 。
  20. The variation of species richness and diversity index in jinfo mt. and guilin plots is same. in general the biodiversity in jinfo mt

    桂林實驗場和金佛山樣地物種豐富度、多樣性指數的變化趨勢基本一致，總體上，金佛山的物種豐富度和多樣性指數都較桂林地區高。
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