群落

Consequently, sulphidic bottom waters on continental shelves may be more common than previously believed, and could therefore have an important but as yet neglected effect on benthic communities.

关于硫化物会被亚表层海水中的细菌完全耗尽、从而会被浅层沿海水域的遥感或监测活动忽略的发现表明，大陆架上含硫化物的海底水域也许要比我们所想的更普遍，所以有可能对底栖生物群落产生一个重要的、但以前却被忽略的影响。

The relationship between 21 main species of Stipa breviflora communities were studied by using χ2 test for the 2×2 contingency table and Spearman′s rank correlation analysis.

应用2×2列联表的χ2检验和Spearman秩相关分析方法对短花针茅群落21个主要物种的种间关系进行了分析。

Under the different vegetable communities, the microbial quantity is spruce forest 〉 chrysanthemum alp 〉 couch grass.

但从各群落土壤中的微生物类群看，其数量变化关系为细菌〉放线菌〉真菌。

The studys object is bitch forest .spruce forest ,fir forest, chrysanthemum alp, willow community and two couch grass, so the research of the soil microorganisma,soil enzymatic activity in the subalpine coniferous forests in western Sichuan is significant to china .

因此，开展对川西地域中独特的生态环境中土壤微生物群落、以及与碳氮循环有关的土壤功能微生物数量和酶活性等的分布特征研究，进一步揭示川西亚高山植物群落的生态学过程已成为一项重要的研究课题。

Objective:To study the characteristics of soil microbial variation during Salvia miltiorrhiza crop rotation.

中文摘要：目的：研究丹参轮作期间土壤各类微生物数量和细菌生理群落结构的变化特点。

In different kinds of crucifer vegetable fields the insect communities were different.

不同蔬菜种类田节肢动物群落的多样性指数、均匀性指数及优势集中性指数有所差异。

The results show that 154 species were found in the area,including 60 species of Polychaeta,30 of Crustacea,28 of Mollusca and 24 of Echinodermata;the dominant species are not very distinct,the relative important or common species are Listriolobus sp.,Xenophthalmus pinnotheroides White and Cossurella dimorpha Hartman.

本次调查共获得长江口附近海域大型底栖动物154种，其中多毛类环节动物60种，甲壳动物30种，软体动物28种，棘皮动物25种，其它类群动物11种。群落中优势种的地位都不明显，只有螠虫(Listriolobus sp。)、豆形短眼蟹(Xenophthalmus pinnotheroides White)、拟单指虫为相对重要的种类。

Significant differences in the structure of crustacean community were found among Stations Ⅰ,Ⅱ,Ⅲ and Ⅳ.

浮游甲壳动物群落结构在东湖Ⅰ、Ⅱ、Ⅲ、Ⅳ站间具有显著差异。

In the Braun-Blaoquet school the description of synusial associations was not confined to cryptogam communities.

在Braun-Blaoquet学派中，层片群丛的描述不限于隐花植物群落。

Based on the investigation of 38 forest plots in Beijing mountainous region, the niche breadth and overlap of seven rare and endangered herbage plants Glycine soja, Cypripedium macranthum, Malaxis monophyllos, Herminium monorchis, Paeonia obovata, Platanthera chlorantha and Liparis japonica were calculated and analyzed. The results showed that G. soja had a wider niche breadth (0.297), while C. macranthum, M. monophyllos and H.

基于北京山区有珍稀濒危草本植物分布的38块森林群落样地调查数据，对北京山区的野大豆、大花构兰、沼兰、角盘兰、草芍药、二叶舌唇兰和羊耳蒜等7种珍稀濒危草本植物进行了生态位宽度和生态位重叠计算与分析。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。