群落

On the other side, the relations among community classification, structure, diversity and distribution pattern were also investigated through the study of species composition, diversity and interspecific relation of Medicago falcata in Inner Mongolia.

另一方面，本文又以松嫩平原天然草地中的五脉山黎豆、多茎野豌豆、花苜蓿以及内蒙古的黄花苜蓿为研究对象，从植物群落的物种组成、多样性、种间关联等几方面探讨了我国天然草地中豆科牧草的群落类型、结构、群落多样性与分布格局之间的关系。

Floristic composition, physiognomy, species diversity and the possible succession of the community were analyzed.

群落进行物种多样性测定，并分析了群落的种类组成、外貌、演替等。

Structure index was significantly (P.05) different among three plant species whereas channel index and enrichment index were not. Plant species not only modified abundance of plant-feeding, omnivorous and predatory nematodes, but also percentage of each trophic group. Bacterivorous and fungivorous nematodes were affected most by the differences in plant species.

研究表明在沙地生态系统中，3种植物根际土壤线虫群落的多样性、丰富度、均匀度和线虫总数虽然都存在一定的差异，但不显著；功能多样性指数中结构指数存在显著差异，而通道指数、富集指数不存在显著差异；3种植物对根际土壤线虫群落中各营养类群线虫的比例有显著影响。

The regenerative potential of the community can be described as good as all the main species of the community which have germinative seeds in the seed bank.

在种子库中，现存群落的优势种和其它主要树种均有活力种子存在，群落更新潜力好。

40 Quadrats of Gleditsia heterophylla communities were recorded in the south tip of Taihang Mountains, and those quadrats were classified into 9 associations by Twoway Indicator Species Analysis.

用丰富度指数、多样性指数和均匀度指数对野皂荚群落的物种多样性进行了研究，并用方差分析研究了各群落之间多样性指数的差异程度。

The seeding dynamic, community structure, species diver s ities of the wind-damaged slash after restoration 11 years were studied. The res ults were as the following:(1) Pinus massoniana and Gordonia acuminata seeding were dominated at the first and second years.

对缙云山风灾迹地森林群落在11年恢复过程中的幼苗动态、群落结构、植物物种组成以及物种多样性的变化等方面进行了研究。

The families of Leguminosae and Gramineae had their own chemical characteristics,while other families chemical characteristics were not clear.

其中，禾本科、豆科植物分别具有其明显的化学成分特征；撂荒地群落与自然群落中植物、沙质与非沙质生境中植物化学成分差异较显著。

As in Hanshiqiao nature reserve, the community coverage of invasive plants like Humulus scandens can even reach 90% or more, they may have formed a community with only one dominant plant, which makes it impossible for the native wetland plants like Phragmites communis to grow.

如汉石桥湿地保护区，捧草等入侵植物的群落盖度达到90％以上，有些形成单优势的群落，抑制了芦苇等湿地植物的生长。

Behaviour ecology, physio-ecology and community ecology of vines in the evergreen broad-leaved forest of Tiantong National Forest Park, Zhejiang Province, China, were studied and rich first-hand data were collected in this project.Some vines with different climbing motheds were much different in leaf anatomy, ecophysiology, growth rhythm and behavior, and another vines with same climbing methods showed similar adaptation to habitat, on which their distribution in a forest depended. The concept of climbing unit consisted of internode, leaves and tendrils or other climbing organs on it was put forth, and the method to calculate and value the climbing capaity of a vine was set up. In the meantime,experimental ecology of a twining vine Humulus scandens was carried out.

本项目以浙江天童常绿阔叶林为基地，从行为生态、生理生态和群落生态学等角度较系统深入地研究了常绿阔叶林藤本植物的生态适应特征，取得了丰富的第一手资料，结果表明不同攀援类型的藤本在形态结构、生理生态、生长和攀援行为上表现出明显的差异，而同一攀援类型的藤本表现出较大的趋同适应的特征，但也存在着差异，这些特征或差异决定了它们在群落中分布的层次和与支持木之间的作用方式；提出了攀援单位的概念，初步建立了攀援能力的测定和评估方法。

DGGE was used to study 16S rRNA (V3 region) of soil microbial community, the result shows that the structure of soil microbial community changed a lot, when the degeneration of grassland is progressing, especially the structure of soil microbial community in surface lamina; The structure of soil microbial community in podzolic horizon of hypo-surface lamina of the grassland degenerated heavily, is similar to soil microbial community in illuvial horizon of the typical grassland and the grassland degenerated lightly.

重度退化草原亚表层的灰化层细菌群落结构类似于典型草原和轻度退化草原的淀积层的细菌群落结构。

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。