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- It was found that: (1) In all 17 plots, herb layers had the highest species abundance,and tree layers had the highest species evenness. 結果如下:()門個樣方中物種豐富度指數是草本層最高,均勻度指數是喬木層最高。
- Species abundance pattern plays an important role on community structure. So far, less attention has been paid to abundauce pattern in ecology study. 物種多度格局是群落結構的重要內容,但在目前的生態學研究中對其重視不夠;
- The avian species abundance is at a low level in the primary stage of vegetation succession, goes up in the second stage, and declines in the high stage. 鳥類的物種豐富度隨著灘涂演替的推進經歷由低到高再到低的過程。
- The main factors which decided the characteristics of Larix Chinensis forests were analyzed, the order is DBH?tree height?age?Area at breast height?species abundance. 通過主成分分析,對太白紅杉林特徵起決定作用的因子依次是:胸徑?樹高?年齡?胸高斷面積?物種豐富度;
- Objective To investigate the species abundance distribution of ectoparasitic gamasid mites on Rattus flavipectus and illustrate the relationship between species and their corresponding individuals in the gamasid mite community. 目的研究黃胸鼠體表寄生革蟎的種多度分佈,闡明革蟎群落內物種數與個體數之間的關係。
- The forage yield increased by 206.8%; the species number increased by one grade and density increased by 550%; the species abundance index increased by 800% and the evenness index increased by 66.7%. 迎風坡上部植被非常稀疏;不形成群落;植株平均高度25.;3 cm;產草量增加206
- Aggregated distribution-abundance model could better estimate the species abundance than random distribution-abundance model, suggesting that most species were aggregately distributed. 聚集分佈多度模型預測物種多度的結果要好於隨機分佈多度模型,這表明該區大多數物種是聚集分佈的。
- First discussed in the theory of island biogeography, and then applied to habitat islands, is the effect of island size, isolation, and location on species abundance and biodiversity. 首先討論海島生物地理學理論,有關海島大小、隔離和地點的應用在種類豐富且生物多樣性之海島棲地上。
- There was an abundance of corn last year. 去年玉米豐收。
- She had an abundance of very black hair. 她有一頭濃密的深黑色頭髮。
- The falling star described a long curve in the sky. 流星在空中畫出了一道長長的弧線。
- An array or abundance of gimmicks. 巧妙裝置一系列的或大量的別緻玩意兒
- A line segment that joins two points on a curve. 弦將兩點用曲線連接起來的曲線段
- There were deer in abundance in these forests. 這些森林中有許多鹿。
- His spine developed a slight curve. 他的脊柱有點彎曲。
- Do wolves belong to the canine species? 狼是犬科動物嗎?
- The coast sweeps (away) northwards in a wide curve. 海岸呈一大弧形向北伸展。
- Species Abundance Patterns of Artificial Vegetation in Antaibao Open Mine 安太堡露天礦區人工植被的物種多度分佈分析
- We should do our best to save endangered species. 我們應該竭盡全力挽救瀕於滅絕的生物。
- A bend or curve, especially in a shoreline. 彎曲,弓形彎曲或弓形,尤指海岸線