生物群落

It is dedicated to education and research focusing on a wide diversity of research areas, including the quantitative population ecology of plants and small mammals, terrestrial plant community ecology, grassland biodiversity and restoration ecology, plant fungal pathogen dynamics and population biology, successional changes in terrestrial insect communities, terrestrial ecosystem ecology, the remote sensing of natural resources, life history theory, molecular evolution in vascular plants, evolutionary and theoretical population genetics, theoretical ecology, and limnology and aquatic ecology, basic biology of insects, Ecophysiology; paleobotany; population genetics, evolution of plants and fungi.

其主要致力于生态学和进化生物学的教育和研究，主要学科领域包括植物和小型哺乳动物种群生态学、陆地植物群落生态学、牧草生物多样性和恢复生态学、植物真菌病原动力学和种群生物学、陆地昆虫群落连续改变、陆地生态系统生态学、自然资源遥感、生命史理论、维管束植物分子进化、进化和理论种群遗传学、理论生态学、湖沼学和水生动物生态学、基础昆虫生物学、生态生理学、古植物学、种群遗传学、植物和真菌的进化等。

PICT, used as an indicator for the determination of toxic effects of pollutants in biotic communities, has been developed for aquatic and terrestrial communities.

目前PICT研究已涵盖了水生生物、陆地植物、微生物等，其中土壤微生物是PICT研究的重要群落对象。

Ecological basis and application of PFU protozoan community in bio-monitoring with relation to water quality ［J］.

PFU原生动物群落生物监测的生态学原理与应用［J］。

Applying quadrat method,the vegetation of Yanchi county of Ningxia Ningxia Hui Autonomous Region was investigated to study the influence of different fencing time on community structure and biomass.

在宁夏自治区盐池县人工封育区采用样方调查法对不同封育年限封育区植被的群落结构和生物量进行调查分析，并运用丰富度指数、均匀度指数和综合性多样性指数分析生物多样性变化。

Our study was the first report comparing the microbial structure of two effective denitrifying communities which could efficiently degrade quinoline and indole.

首次报道并比较了可高效降解喹啉和吲哚的反硝化生物反应器的微生物群落结构。

Based on the relationship between species and area,the rarefaction is an effective method for assessing the biodiversity in a regional scale.

在生物多样性保护实践中，多样性指数常被用来作为评价群落或生态系统状况的重要指标〔1-5〕，从而为制定保护对策提供依据。

Microphylla plantations are obvious, such effects and the contents of soil organic matter, N, P and K are gradually increased with the growth of C. microphylla plantations. Moreover, the activities of phosphomonoesterase, saccharase, protease, urease, dehydrogenase, polyphenol oxidase and nitrate reductase and the contents of edaphon C, N and P are significantly increased at soil depth of 0~30 cm, especially at soil depth of 0~10 cm.

随着小叶锦鸡儿固沙群落发育时间的增长，其综合防风性能提高，土壤有机质、N，P，K含量和生物活性逐渐得到改善。0~30 cm土层中磷酸单酯酶、蛋白酶、脲酶、蔗糖酶、硝酸还原酶、多酚氧化酶、脱氢酶的活性和土壤微生物生物量C，N和P含量均大幅度提高，其中0~10 cm土层增幅最大。

Results show that main microbial populations in the reservoir are saprophytic bacteria,hydrocarbon-oxidizing bacteria and ferment bacter...

结果表明，腐生菌、烃类氧化菌、发酵菌等是油藏中存在的主要微生物群落；注入玉米浆可以有效刺激内源微生物的生长与代谢，产生表面活性剂和生物气，有利于驱油；硝酸铵可以有效抑制硫酸盐还原菌的生长。

The present investigations show that Bt rice possesses high efficiencies for controling rice stem borer, yellow stem borer and rice leaf roller, and there are no significant differences in growth and development of non-target organisms, such as rice planthoppers, leafhoppers and predators, and the stability of arthropod community structure between Bt rice and conventional rice paddy habitats.

现有的研究表明，Bt水稻对二化螟、三化螟和稻纵卷叶螟等主要靶标害虫具有较高的抗性水平，对稻飞虱、叶蝉、捕食性天敌等非靶标生物的生长发育和稻田节肢动物群落的稳定性无明显影响。

It very important to syncretize the community ecology and landscape ecology by the spatial distribution and comparisons in scale. The result show bird habitat selection is affected by the temporal and spatial scale and heterogeneity.

生物分布的空间异质性和尺度的比较研究是群落生态学和景观生态学交叉研究的重要切入点，本研究认为，鸟类的生境选择研究应该是时间、空间尺度以及异质性研究的综合。

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。