diversity [dai'və:siti]
- diversity的基本解释
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n.
差异, 多样性
- One of the advantages of living in big cities is that they have lots of cinemas and other diversions.
- 生活在大城市里的一个优点就是城里有许多电影院和其他娱乐场所。
- 相似词
- 拼写相近单词
- diversities
- 拼写相近词组、短语
- diversity factor
- 更多 网络例句 与diversity相关的网络例句 [注:此内容来源于网络,仅供参考]
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Sympegma regelii community, a rangeland desert vegetation, has the highest Shannon-Winner species diversity indices (1.706); the communities of Haloxylon ammodendron and Ephedra przewalskii, which have obvious feature of desert vegetation, are in the middle in species diversity indices (0.875-0.890); the communities of Calligonum mongolicum, Populus euphratica, Tamarix ramosissima and Glycyrrhiza inflata, characterized by desert forest of which saline desert bushes and saline meadows are scattered in the communities, have lowest value of the species diversity indices (0.079-0.495). 3 The structure of desert plant community is dominated by the bush layer. The species diversity indices of bush layer (0.769-1.451) is much higher than that of herb layer (0.193-0.254), and the diversity in herb layer is strongly influenced by bush layer. 4 The species diversity of desert plant communities shows a gradient of change with respect to longitude, latitude and elevation. For example, rangeland plant Sympegma regelii, with a high level of diversity indices (1.706), is in transition to desert plants Haloxylon ammodendronn community (with a low level of diversity indices of 1.379) in a longitude gradient and to saline Tamarix ramosessima community (with a low level of diversity indices of 0.376) in a latitude gradient. Calligonum mongolicum community, with a low level of species diversity (0.819), is in transition to Ephedra przewalskii (with a low level of diversity indices of 0.890) and Haloxylon ammondendron community (with the diversity indices of 0.645) in an elevational gradient.
群落Shannon-Wiener物种多样性水平表现为合头草群落最高(1.706),具有草原化荒漠植被类型的成分;梭梭群落、膜果麻黄群落居中(0.875~0.890),荒漠植被类型特征明显;沙拐枣群落、胡杨群落、多枝柽柳群落、胀果甘草群落较低(0.079~0.495),荒漠林、盐地沙生灌丛及盐化草甸植被均有零星分布。3荒漠植物群落结构层次中,灌木层占居主导地位,群落灌木层物种多样性水平(0.769~1.451)远远大于草本层(0.193~0.254),且草本层物种多样性受灌木层影响较大。4荒漠植物群落物种多样性分布格局表现为经向、纬向和海拔梯度的变化,经向、纬向变化为物种多样性水平较高的草原化植物合头草群落(1.076)向物种多样性水平较低的荒漠植物梭梭群落(1.379)和盐化植物多枝柽柳群落(0.376)的过渡,海拔梯度则呈现低水平的沙拐枣群落(0.819)到高水平的膜果麻黄群落(0.890)向低水平的梭梭群落(0.645)变化。
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The results showed:①the communities that stipa baicalensis is edificator had the highest species diversity, and the idea that stipa baicalensis communities were the local zone vegetation was supported;②the majority of studied communities were unsaturated in the species diversity, and the species diversity had a tendency to increate with the improvement of soil environment;③the relation of species diversity to community productivity was a one-humped function, that is, the species diversity of mediation productivity was highest;④the species diversity under intermediate disturbance was highest, and the intermediate disturbance hypothesis was supported;⑤the content of potassium in soil had probably an important function, or was an important following factor in the types of grassland community;⑥a new hypothesis on the forming mechanism of species diversity of community, Small Scale Competition and Random-Patch Dynamic Hypothesis, was put forward boldly.
通过上述研究分析得出如下结果:①以贝加尔针茅为建群种的群落物种多样性最高,从物种多样性角度证明该群落类型最适应本区气候和环境条件,应是本区的地带性群落;②绝大多数群落的物种多样性处于未饱和状态,随土壤环境的改善呈明显的增加趋势;③物种多样性与群落生产力呈单峰函数关系,即在中等生产力水平时物种多样性最高;④放牧中等干扰水平物种多样性最高,支持Connell的中度干扰学说;⑤偶然发现土壤钾含量可能在草地植被类型分化中起到重要作用,至少是一个重要的伴随因子;⑥大胆提出了群落物种多样性构成机制的新学说即小尺度竞争随机斑块动态学说。
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This study deals with butterfly diversity and conservation of rare as well as insect fauna species in Baishuijiang Natural Reserve in Gansu Province. The research includes field investigation, observation at certain time and places, captive breeding in experimental area etc. Butterfly species diversity in Baishuijiang Natural Reserve and variation regulation of butterfly diversity in different areas are studied. The relationof butterfly diversity with environmental factors such as vegetation destruction, human disturbance are strenthened in Bifeng Gully. The biology of two rare butterfly species is studied. Meanwhile, this study deals with insect α-diversity and β-diversity in Baishuijiang Natural Reserve and inquire into the mechanisms of ecological control by protecting and recovering vegetation. The research includes field capture with sweeping net, light trap, transect investigation.
在甘肃省白水江自然保护区碧峰沟通过野外调查、定点定时观察、实验地饲养等研究了白水江自然保护区两种珍稀蝴蝶红基美凤蝶和巴黎碧凤蝶的生物学特性,在保护区范围内通过网捕采集研究了蝶类物种多样性和不同区域内蝶类多样性的变化规律;同时在碧峰沟四种不同生境中通过灯诱获得标本,研究了该地区不同生境中的昆虫种类组成及其多样性,分析了决定物种丰富度的关键因子,与蝶类多样性进行了比较分析,并提出了具体的保护措施。
- 更多网络解释 与diversity相关的网络解释 [注:此内容来源于网络,仅供参考]
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diversity:多样性
在这种情境下,人们常说的"统一性"(unity)与"多样性"(diversity),并不是两个相互对立的东西,而是分别与"解体"(disunity)、"同质性"(homogeneity)相对. 由于存在多个政治中心,政治生活不像单一制共和政体那样由一个全国性的单一多数(single majoritarian)所决定,
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diversity:分集
在PHY层导入了多项革命性的技术,例如:更佳的OFDM调制技术、多输入多输出(MIMO)、分集(Diversity)及波束成形(beam-formin曲的新天线技术等等;在MAC层部分最主要的突破是采用讯框汇聚(frame aggre-gation)的新作法,能有效提升封包处理的效率,
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diversity:不同
不错,那么欣赏人与人的不同(diversity)的思想家约翰穆勒也强调社会需要起码的共识. 然而,诚如上述,每一个思想界对支离的知识与互相不会通的折衷论或者互相反驳的政治说法有自己的看法. 英美的思想界多半以这种思想混乱的竞争为正常,
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diversity:差异
而在国外的所见所闻,也确实证明了经历(experience)与差异(diversity)对于人生的重要性与必要性. 在今后一段时间里,我将陆续为大家献上我的见闻与感悟,希望这个系列能够为各位不辞辛劳前来访问的朋友提供些微的乐趣与帮助.
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Biological diversity:生物多样性
"托马斯.拉弗乔依在"生物多样性"(Biological Diversity)一文中以其深邃的科学洞察力对物种消失的原因进行了极具价值的探讨. 他在自己的回忆录中陈述了他的结论:"每当我们灭绝一个物种,我们就结束了已延续数十亿年的谱系. 这一切本该让我们停止破坏,
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