群落

The major conclusions are as the following:(1) Species composition is rich in Artemisia ordosica communities, with Asteraceae, Gramineae, Leguminosae and Chenopodiaceae as the dominant families.

主要结论如下：(1)油蒿群落占优势的科依次为菊科、禾本科、豆科和藜科。

Study of microbial ecology on the autecological factors, morphology and distribution of population and community succession was further carried out with the aim to understand the microbial characteristics in BAF.

为了探讨曝气生物滤池的微生物学机理，分别从个体生态条件、种群组成和分布、群落演替规律等方面研究了曝气生物滤池的微生物生态学特征。

We took Picea mongolica forest in Baiyinaobao natural preserve InnerMongolia Autonomous Region as the research object,studied its environment,autecology,population ecology,community ecology,ecosystem ecology and socialecology systematically.

本文以内蒙古白音敖包自然保护区的沙地云杉林为研究对象，通过大量的野外调查、室内分析和资料收集，从保护生态学的观点出发，对沙地云杉林的环境、个体生态、种群生态、群落生态和生态系统生态以及社会生态进行了全面系统的研究。

Ecological control of sludge bulking is highly important, especially in preventing sludge bulking through ecological relationship such as prey and autoeciousness of microorganisms.

指出丝状菌污泥膨胀的实质是活性污泥微生态系统平衡失调，微生物群落结构与功能发生变化，丝状菌种群代替菌胶团菌群成为优势种；利用微生物种群之间的捕食、寄生等关系控制污泥膨胀的生态学调控方法，是实现控制丝状菌污泥膨胀，保持污泥微生态系统稳定，获得良好污水净化效果的治本之法。

Because comprehensive effects of trees, shrubs and grasses, difference of species diversity in various communities and in environment gradient is not very significant, that may be results of special forest community adapts azonal environment in long time, that give us some interesting inspiration to improve environment around Daqinggou district.

这可能是特殊森林群落类型长期适应隐域性生境条件的结果，它为我们改造周边环境提供了有益的启示。

In the tributary, species of Chlorophyta were most frequently observed, and then species of Bacillariophyta.

总体而言，藻类的群落结构干流江段以硅藻为主，绿藻次之；支流水域以绿藻占据首位，硅藻次之。

Followed successively by Bacillariophyta, with 31 species of 18 genera, taking up 19.38%; Euglenaphyta, with 15 species of 3 genera; Cyanophyta, with 7 species of 4 genera; Cryptophyta, with 3 species of 2 genera; Pyrrophyta and Chrysophyta, with 2 species 2 genera; Xanthophyta, with 1 species 1 genera.

浮游植物是水生态系统中的初级生产者，是水生生物群落结构中的重要组成部分，是水环境质量的重要指示生物，浮游植物的种类组成和数量变动都可以反映水质变化的情况。

Then in 1875, out of nowhere, a well combination of wind currents, drought and basic biology, set the stage for the unthinkable -- the biggest baddish swarm ever recorded.

接着在1875年，不知从哪里出来的，一次风流，旱灾和基本的生物群落的正好的结合，促成了上演这个意想不到的——曾被纪录的最大的害虫群。

The result showed that:(1) There were a higher density of Ostreidae and Balanidae and a lower biodiversity in the cay sampling section of Daxie Island.(2) No significant difference was found in the macrozoobenthos community among the tide plat sampling section in Daxie Island.(3) There was a lower macrozoobenthos species number, biodiversity, and a higher density of Sternaspis scutata and Capitella capitata than those in the sea area beside Daxie Island. Moreover, a significant difference was found in the macrozoobenthos community between the sea area of Daxie Island and the adjacent islands.

结果发现：(1)大榭岛岩相潮间带断面牡蛎科和藤壶科等科的物种栖息密度较高，生物多样性较低；(2)泥沙相潮间带底栖动物状况与其他海岛差别不显著；(3)大榭岛近岸海域底栖动物种数少于其他海岛近岸海域，且前者不倒翁虫和小头虫等多毛类物种栖息密度较高，生物多样性较低，群落结构与其他区域相差较大；(4)环境质量的生物评价结果显示，大榭岛近岸海域扰动程度高于其他海岛近岸海域。

In this paper, the benthic distribution of biomass and biodensity, composition of species and community structure are studied in coastal waters of Zhejiang Province.

本文对浙江省近岸海域底栖生物的种类组成，生物量及栖息密度的分布和群落结构进行了叙述和讨论。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。