物种多样性

Avian ; Avifauna ; Group diversity ; Species diversity ; Three Gorges Reservoir

鸟类；区系；类群多样性；物种多样性；三峡库区

Species diversity is an important part of biodiversity.

物种多样性是生物多样性研究的一个重要层次。

Together with literature records, a total of 75 species or subspecies in 59 genera, 20 families and seven orders are now known from the Yinggeling area, representing 70.8% of the known fresh-water ichthyofauna and 80.0% of the known endemic fish species of the island.

利用多样性指数，得出鹦哥岭鱼类物种多样性最高的是南渡江流域的南开河和昌化江流域万冲河段的支流。

Pubescens community and mixed plant species belonged to 56 families, 85 genera, 122 species. The layers of arbors, shrubs, liane, and herbages could be distinguished clearly. The community of Jiulian Mountain Nature Reserve in Jiangxi Province had the highest diversity indices of tree layer in four T. ciliata var. pubescens forest communities, the least was community in Changgang, Longquan of Zhejiang Province. The community of Changgang had the highest index evenness, the least was in Jiulong Mountain of Zhejiang Province. The importance value of T. ciliata var.

研究结果表明：毛红椿天然林群落的物种多样性丰富，与毛红椿混生的植物种类有56科85属122种，而且层次性较强，分为乔木层、灌木层、藤本层和草本层4层。4个毛红椿天然林群落乔木层中，江西九连山群落Simpson多样性指数最高，浙江龙泉昌岗毛红椿群落为最低；浙江龙泉昌岗群落的均匀度指数最高，浙江九龙山群落为最低。

It is suggested that the effective diversity index should be chosen for the diversity research of desert steppe.

建议在荒漠草原物种多样性研究中应该选择有效的多样性指数。

In China, the species diversity of Myxomycetes in the north temperate regions is well known, but that in the tropical and subtropical regions is still inadequately known and will become a key research point in the future.

研究表明，中国北温带地区粘菌多样性比较明了，但热带和亚热带地区的物种多样性研究是滞后的，不过这也是此领域在未来研究的重点。

Form north to south, the biomass of dominant plants were significantly different among different sampling transacts.

在高潮区滩涂，样带距潮沟边缘的距离显著影响植物的物种数与香农威纳多样性指数，而在中低潮区滩涂的调查则发现潮沟垂向方向上植物物种多样性的变化并不明显。

The diversity index of broadleaved forest and bush, the evenness index of conifer forest and broadleaved forest,the dominance index of bare rock and farmland were higher than that in the other habitat types.

对5种不同生境类型的蝶类多样性进行分析，物种多样性指数最高的为落叶阔叶林和灌丛，均匀度指数最高的为针叶林和落叶阔叶林，优势度最高的为裸岩和农田。

Experiment 5: Species diversity of AMF community colonized in roots of herbages in limestone and purple soil The species diversity of arbuscular mycorrhizal fungi in roots of various herbages were studied in this paper. Seventeen common herbages were selected as host plants of AMF colonization in this research and they were grown in limestone soil and purple soil, respectively.

试验5：石灰土上草本植物根系内丛枝菌根真菌多样性特征利用聚丙烯酰胺凝胶电泳和银染显影技术，比较了生长于石灰土和紫色土上的草本植物根系内的丛枝菌根真菌(arbuscular mycorrhizal fungi，AMF)群落的物种多样性特征。

To increase and keep the variety of community of greenbelt is a most important problem in a modern city. It is also a foundation to keep the balance of ecosystem and increase the species diversity.

中文摘要增加和保持城市绿地群落的多样性是现代城市绿化的重要问题之一，是保持生态平衡和保持物种多样性的根本保证。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。