群落

The water quality was more stability when the dominant species was mainly Oocystis borgei in it. Ammonia nitrogen and nitrite nitrogen in the experiment pond was lower than that of the control pond.

波吉卵囊藻为主的微藻群落控制的水质较稳定，实验池氨氮和亚硝酸盐氮浓度较对照池低。

Oocystis borgei, which was selected from the prawn culture pond and expanded after 3-grade cuture, was artificially introduced into the culture system of Litopenaeus vannamei. The structure of microalgae community, the water quality, the factors that relate to the anti-disease ability of prawn and the growth of prawn were inspected to study the technology of microalage-ecology control to prevent shrimp diseases.

采用微藻三级扩大培养技术，将在对虾养殖池选育的波吉卵囊藻Oocysits borgei引入凡纳滨对虾Litopenaeus vannamei高位养殖池，并检测养殖环境中微藻群落结构、水质因子、对虾抗病力相关因子、对虾生长情况，研究了以微藻生态调控为主的对虾防病技术。

The result showed 41 clones distribute in 26 OTUs, which exist in Acidimicrobidae and 7 suborders of Actinobacteridae respectively, especially the dominant community of Yutian pit was streptosporangineae instead of streptomycete, which accounting for 42.3% of sequenced clones.

结果表明， 41个克隆序列属于26个OTUs，分别分布于放线菌门放线菌亚纲的7个亚目和酸微菌亚纲，其中链孢囊菌亚目(Streptosporangi- neae)中放线菌组成丰富，占到了全部挑选克隆的42.3%，是于田盐池放线菌群落中的优势菌，而链霉菌不是高盐环境放线菌的优势菌群。

The result shows that the mixed-culture system of yeasts can optimize microbial community structure, and can increase the yield and the quality of Shanxi overmature vinegar.

结果表明，通过构建功能菌共培养体系改善大曲微生物的群落结构，提高传统酿造产品的产量与质量是一条可行的途径。

WCS researcher Robert Timmins was initially conducting a survey of the Wakhan and Pamir Rivers' bird communities when he heard an unusual song.

WCS的研究员罗伯特·Timmins最初的Wakhan进行调查与帕米尔高原河流的鸟类群落时听到了不寻常的歌曲。

Tropical montane rain forest was investigated in Mengsong, south-west to Jinghong City ofXishuangbanna region in the south of Yunnan near the border between China and Myanmar. There are 623 species of seed plants belonging to 327 genera and 116 families in this forest. Analysis of areal types shows that 32.8% of the families are of tropical and subtropical type, 23.3% tropical to temperate type, and 18.1% typically tropical type. Areal types at generic level mostly are tropical (81.4%), in which 28.4% are of Indo-Malaysian type and 26.8% are of pantropic type.

西双版纳勐宋的热带山地雨林是一种东南亚热带山地雨林的北缘类型，它在植物区系组成上和群落学特征上是介于热带雨林和南亚热带常绿阔叶林之间的热带山地常绿阔叶林。

Compared with the natural recovery, artificial coniferous forest not only increased the number of species of bird community, but also significantly increased the density of birds, especially to significantly increase the density of Parus palustris hellmayri and Phylloscopus inornatus inornatus.

同自然恢复相比，人工针叶林恢复不仅提高了鸟类群落的物种数，还显著提高了鸟类的密度，特别是显著提高了沼泽山雀、黄眉柳莺的密度。

Subcordatum were recorded with contiguous grid quadrate method. The results showed that the forest community was dominated by Acronychia pedunculata and Sinosideroxylon wightianum, as well as L. subcordatum.

调查结果表明四药门花所在的次生林群落以降真香、四药门花和铁榄等树种为优势。

Below the photic zone carnivorous and detritivorous animals occur, feeding on material with depth, Bottom

在有光带以下，生存的是食肉和食碎屑的动物，它们依靠来自上面群落的物质为生。

The soil depth of 30～40 cm could be taken as a shift depth of the vertical distribution of Phragmites communis belowground biomass.

基于2005年4～9月盘锦湿地芦苇生态系统的观测资料，分析了盘锦湿地优势植物芦苇的群落学特性。

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。