species richness 英[ˈspi:ʃi:z ˈrɪtʃnəs] 美[ˈspiʃiz ˈrɪtʃnəs] 释义 物种丰富度 实用场景例句 全部 Species richnesswas generally low in all shrub communities. 各类灌丛之间物种丰富度指数相差不大. 互联网 ...
n.物种多样性 网络物种丰富度;生态指数如种类丰富度 网络释义
物种丰富度通常是指被选定的群落中物种的种数。表示物种丰富度主要有两种方法: 1)数量物种丰富度(Numerical species richness),即一个群落中每一个物种的个数或者其生物量。由于动物类群容易计数,并且研究者可以选择连续取样,直接来累计计算一个物种的最小个体数,因此,在动物学研究中一般喜欢采用数量物种丰富度来描述...
Species richnessincreases in response to increasing tide range, increasing wave energy, decreasing sand particle size and in flatter and wider beaches. This means that macrofaunal species richness increases as beaches become more dissipative (McLachlan and Dorvlo, 2005). For ocean beaches, the number...
Speciesrichnessconveys no information on the taxonomic structure of an assemblage. From theCambridge English Corpus Speciesrichnesswas tabulated for each sample and cumulativespeciesrichnessfor seeds associated with each focal tree. From theCambridge English Corpus However, it may not always be the case ...
Species Richness 作者: Jonathan Adamas 出版社: Springer副标题: Patterns in the Diversity of Life出版年: 2009-6-12页数: 386定价: USD 279.00装帧: HardcoverISBN: 9783540742777豆瓣评分 目前无人评价 评价: 写笔记 写书评 加入购书单 分享到 推荐 ...
However, we have little understanding of how environmental heterogeneity shapes the effect of diversity on ecosystem functioning and to what extent this diversity effect is mediated by variation in species richness or species turnover. This knowledge is crucial to scaling up the results of experiments...
(1)物种丰富度指数(species richness index) a. Gleason(1922) 指数 InA S D / 式中,A 为单位面积,S 为群落中的物种数目。www.docin.com|基于6个网页 2. 物种丰富度指數 a. 物种丰富度指數(species richness index) ir.niu.edu.tw|基于1 个网页 3. 种丰富度指數 种丰富度指數(species richn...
Effects of plant species richness on nutrient availability may also be associated with soil microbes, for instance through increased phosphatase activity29. Phosphatases are enzymes released by plants and microbes that hydrolyse organic- into mineral-P, enhancing soil P availability. Little is known ...