群落

In the n-dimensional space, the fundamental niche is a hypervolume. The realized niche is described as the environmental characteristics that surround a species population in a particular community.

在n维生态位空间，物种的基础生态位为一实体，实现生态位则是在某一特定群落生境中一种群所处的环境参数所描述。

The population dominance index, Shannon-Wiener index, evenness, niche breadth and community similarity were used to analyze the diversity and eco-niche of soil moniliaceous hyphomycetes in five ecosystem-types.

利用种群优势度、Shannon-Wiener多样性指数、均匀度、生态位宽度、群落相似性等指标对该地区不同生境的土壤淡色丝孢菌物种的生态多样性及物种生态位进行了分析。

Hystrix canopy declined slightly at the midday, suggesting the occurrence of reversible photoinhibition. Owing to the lower maximum net photosynthetic rate in sun leaves and the ability to effectively and consistently utilize the scattered light and/or transmitted light, C. hystrix saplings could survive low light intensity, grow well at the edge of the forest and in the understorey, and eventually become one of the dominant species in upper layer of the community.

刺栲冠层阳生叶的最大光合能力比较低，整个冠层叶能高效而稳定地利用散射和透射光，这些特征使得常绿的刺栲幼树能在林边或林下良好生长，较好地适应不同的光环境并成功渡过幼苗期，最终成为群落中的上层优势种。

From Imperata cylindrical community to bare land, main soil nutrients ,organic matter ,total N and available N obviously declined.

从白茅群落到光板地，土壤主要养分有机质、全氮、碱解氮均有明显下降。

On the other hand, the grazing would also weaken the regrowth of some shrubs which had the higher content of crude protein such as Indigofera inchangensis Craib and Dalbergia hupeana Hance., so the grazing intensity to make these shrubs not to decrease even disappear in the shrubby commnuity should be carefully controled.

而对于某些粗蛋白质含量较高的灌木种，如宜昌木兰和黄檀等，放牧会影响其再生，故应严格控制其放牧强度才不致使其从灌木群落中衰减甚至消失。

A community -type, as a class-concept, is inescapably an abstraction

群落类型，作为一个阶级概念，无疑也是一种抽象。

On the basis of multidimensional resource axes,the niches of main tree populations innatural secondarv forest community of eastern mountain area in Northeast China were measured andanalysed,and with PCA technique to the course of niche measurement.

对东北东部山区的天然次生林群落中主要树木种群的生态位在多个资源维度上进行了测度和分析，并将PCA技术运用于生态位的测度过程中。

Rotate and Interplanting have effects on soil microbial community.

轮套作对土壤微生物群落有一定影响。

The main species of the community were Isaria cateinannulata, I. farinosa and Beauveria bassiana.

该林区虫生真菌群落的主要成分是环链棒束孢、球孢白僵菌和粉棒束孢，虫生菌种类较少，较为单一。

Devonian is widely distributed in Baishi Changheba klippe in the middle area of Longmen Mountain.Four communities in Emsian are recognized.

龙门山中段白石-长河坝大型飞来峰泥盆纪地层发育，埃姆斯期划分为四个古生物群落。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。