生物群落

Therefore, the research scope of modern ecology in individual organisms, population and biological communities, human society has been expanded to include various types of compound ecosystem system.

因此近代生态学研究的范围，除生物个体、种群和生物群落外，已扩大到包括人类社会在内的多种类型生态系统的复合系统。

Features and innovations in this study:(1) Longest successive time scale of Precambrian samples is studied;(2) The environmental and biological significances of the difference between . the carbon isotopic compositions of kerogen and coexisted carbonate were discoved;(3) The difference of biogeochemical processes between Proterozoic closed and open sea system was considered in the disccussion;(5) It is first time to carry out the chemolysis and thermolysis of kerogen in Precambrian organic matter research.(6) It is first time to apply molecular organic geochemical data to the reconstruction of Proterozoic Rodinia Supercontinent.

此项研究具有以下特色和创新之处：(1)研究对象连续时间跨度最长；(2)研究内容涉及面较全面；(3)较早详细探讨了前寒武纪沉积有机质的分子特征与古环境和生物群落的演化关系；(4)独立推导和论证了δ〓C〓和δ〓C〓的差值的生物和环境的重要意义；(5)在前寒武纪有机质研究中区分了局部封闭环境下的生物地球化学循环过程与广域海环境下的生物地球化学过程的差异；(6)开展了前寒武纪干酪根化学和热降解研究；(7)开创性地将分子有机地球化学的数据应用于元古宙Rodinia超大陆的重建中。

During restoration experiment, several functional and structural parameters (number of species, diversity index, percentage of phytomastigophora, community pollution value, heterotrophy index, similarity index between communities) were determined weekly.

在修复实验过程中，定期测定微型生物群落的各种结构和功能参数（种类数，多样性指数，植鞭毛虫百分比，群落污染值，异养性指数，群落结构的相似性指数），通过它们的变动机制和规律，再现了修复过程中微型生物群落的演替过程。

The results showed that:① Different α diversity indexes decrease from North-facing slope to plain field and South-facing slope.

群落多样性就是指生物群落在组成、结构、功能和动态方面表现出的丰富多彩的差异。

This paper describes the meaning and characteristics of regional developing strategies,and then with the close relevance of regions at development and biological community,the authors advocate the regional developing strategies based on biological community principles,namely industry clustery strategies and city group developing strategies .

首先对区域发展战略的内涵、特点进行描述；然后根据区域发展和生物群落的密切相关性，提出了基于生物群落原理的区域发展战略，即产业集群战略和城市群发展战略。

On the section, the Wenghui Biota can be redivided into Globusphyton,Sectoralga-Longifuniculum,Cucullus,Beltanelliformis,and Baculiphyca- Gesinella Communities, from below to above. The change and evolution of these communities show the relation the biota and microenvironment, and indicates the relationship macro-plants with metazoans.

在时间纵向上可依次分为Globusphyton ， Sectoralga-Longifuniculum ， Cucullus ， Beltanelliformis ，Baculiphyca-Gesinella等5个群落，反映出生物群落与环境的相关性以及宏体后生动物与植物之间的相关性和规律性。

In silvicultural regeneration treatment,the diversity of shrubs and herbages increases gradually in stage A1～A3,and the variation will continue after stage A3,further work is needed to examine the dynamic.

群落多样性是指生物群落在组成、结构、功能和动态等方面的多样化，是生物多样性各个层次中研究得最早的一个层次，其研究内容主要侧重于群落的物种组成和结构的多样性[1]。

A group of interacting organisms that live in a particular habitat and form an ecological community.

生物群落一组生活在特定栖息地且形成一生态群落的一组相互影响的生物

"Chaparral:a biome characterized by hot, dry summers and cool, moist winters and dominated by a dense growth of mostly small-leaved evergreen shrub s, as that found in the foothills of California."

沙巴拉群落：由主要为小叶常绿密生的灌木组成的生物群落，夏季干旱炎热，冬季凉爽湿润，如存在于加利福尼亚州山麓小丘的一个生物群落。

The structure and carbon flow of community in the pack ice, the contribution of ice community to the vertical carbon flux in the pack ice zone, and the adaptation of ice community to the micro-environments of sea ice were studied in the Canadian Basin and Greenland Sea through five Arctic cruises (the First and Second Chinese Arctic Expeditions, the 15th and 18th Germany "Polarstern" Arctic Cruises, and US-Canadian Joint "Louis St. Laurent" Canadian Basin Cruise).

本研究通过我国首次和第二次北极科学考察、参与德国第15和18北极航次和美-加2002北极航次等5个航次的调查，对北极夏、秋季浮冰的环境特性、生物群落结构和生物量、生物群落碳流、浮冰生物群落对浮冰区真光层垂向碳通量的贡献以及浮冰细菌的环境适应性进行了研究。

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。