物种多样性

Theresults of diversity analysis show understory plants species diversity index of tree layer is maximal,shrub layer is secondary,herb layer is minimal.

物种多样性定量分析表明，乔木层物种多样性最大，灌木层次之，草本层最小。

However, few studies have been conducted on the mechanism of altitudinal species diversity patterns in the montane forest communities.

研究深度也从根据样地资料的简单描述和分析，发展为山地森林群落物种多样性机理假说的提出与证实，尚未见有关山地森林群落物种多样性垂直格局机理的报道。

The species diversity of Castanopsis communities was not affected by altitude, which indicates the consistency of species diversity in Jinggang Mountain.

群落物种多样性没有表现出一个明显的随海拔高度的变化规律，这表明了井冈山栲属群落物种多样性的一致性

Comparing the infection rate of Kummtroma striata under monoculture condition, the AMF colonization both in two-species coexisting of (Digitaria dHaris + Kumtneroivia striata) and (Kummeronxa striata + Ixeris denticulate) showed no significant change. But the AMF colonization rate Kiaameroma striata in three-species coexisting of Digtaria ciUaris + Kummerowia striata + Ixeris dentiatlata was significant higher than that in monoculture.

3田间栽培试验条件中植物物种互作对其菌根形成的影响研究表明，在田间栽培条件下，植物群落的物种多样性及群落内物种间的相互作用对不同物种的A州田侵染率和侵染强度的影响是有区别的，并不是所有的情形下所有的物种组合都有益于人MF的俊染。

Finally, the research of Medicago falcata distribution strategy, inter-community diversity and its mechanism of variation was conducted through abundance index, diversity index, equality and inequality study in different communities.

最后，通过沿坡度梯度分布的不同群落类型的丰富度指数、物种多样性指数、均匀度和非均匀性的研究，探讨了内蒙古黄花苜蓿的分布规律、群落内物种多样性及其变化机制。

The authors investigate and study the species diversity of Leucaena leucocephala plantation. discuss its function of ecology and the relation between species diversity and the function of ecosystem.

通过对金沙江干热河谷新银合欢人工林物种多样性方面的研究，讨论了种在退化生态系统功能恢复中的作用及物种多样性与生态系统功能的关系。

Based on a series of field investigation into psammophytic vegetation in Horqin sandy land and laboratory analysis of soil properties, the relationship between biodiversity and soil fertility characteristics were analyzed.

研究了科尔沁退化沙质草地不同沙漠化阶段物种多样性的变化，以及不同植被类型物种多样性与土壤肥力的相互关系。

Species diversity should acturally be the biological diversity of species.

物种多样性研究的实质是研究生物物种的生物学多样性。

This study provided the analysis of changes of species diversity and productivity in relation to soil properties in six typical habitats （wet meadow, dry grassland, fixed dune, semi-fixed dune, semi-shifted dune, and shifted dune） in Horqin Sand Land.

研究了科尔沁沙地6个典型生境类型的沙质草地群落物种多样性与生产力的变化，分析了植物群落格局、物种多样性、生产力与土壤特性的关系。

The number of species, species diversity and G-F index in the primary forest are the highest. The birds in that community has more species, families and genus, but the number is less.

原生林的鸟类物种数、物种多样性及G-F指数最高，该群落的鸟类在物种和科属水平上拥有最高的多样性，但是个体数量较少。

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。