群落

On the basis of investigation data collected from 20 plots of the fixed dunes and the semi-fixed dunes in Wulanbuhe desert characteristics of species diversity and spatial distribution pattern of Hedysarum scoparium population were investigated.

根据乌兰布和沙漠固定沙丘和半固定沙丘20个样方的调查数据，对不同生境中花棒群落物种多样性及其种群空间分布格局进行了研究。

With adjacent semi-moving dune as the control, this paper studied the effects of 5-, 10- and 22-year old Hedysarum fruticosum plantations on the nutrient status, microbial biomass, and enzyme activities at the soil depths 0-10, 10-20 and 20-30 cm.

以半流动沙丘为对照，对5、10和22年生山竹岩黄蓍人工固沙群落不同层次（0～10、10～20 和 20～30 cm）土壤的养分状况、微生物生物量和土壤酶活性进行了对比研究。

The Coleptera and Hemiptera are dominant groups in the macrofauna.

不同生境土壤动物群落结构、密度和分布存在明显差异。

We investigated the intestinal microbial diversity in the larval gut of Hepialus gonggaensis, an economically important insect.

对实验室养殖条件下的重要经济昆虫冬虫夏草寄主—贡嘎蝠蛾（Hepialus gonggaensis， Hg）幼虫肠道微生物群落的多样性进行了研究。

In the biological functionaddition, both biochanin A and hesperitin might inhibited the colony -formation forming ability of K562 cells through up-regulated Notch signaling. Besides,The treatment with biochanin A and hesperitin enhanced the erythroid-differentiation of K562 cells. It is important to investigate Tthe molecular mechanisms of biochanin A and hesperitin to regulate the endogenous CBF1-dependent Notch signaling will be further investigated.

在生物功能方面，biochanin A与hesperitin可能经由Notch讯息传导的活化，抑制了K562细胞群落的形成，除此之外，这两种药物均明显促进K562细胞往红血球分化。biochanin A与hesperitin对於CBF1所媒介之内生性Notch讯息传导的分子调控机制仍有许多问题尚未厘清，需要更多的实验与研究来讨论。

Root-derived organic carbon is composed of three compartments: root detritus, root eaudates and root symbionts, which represents a large important and potential C sink in forest ecosystems, The known responses of root derived organic carbon and heterotrophic microbes to elevated CO2 were reviewed. Overall, increases in root biomass, productivity, and exudation indicate an augmentation of C inputs into the soil via roots, although changes in root lifespan are still unclear and may modify this flux positively or negatively, Altogether, changes in root chemistry and morphology that may augment soil C storage under elevated CO2 include decreased N concentration and wider root diameter, Alternately, a shift in rooting depth upwards in the soil profile may increase average turnover rates of root detritus. Effects of CO2 concentration on C qualities of root exudates and root symbionts are the least understood components discussed here, Changes of soil heterotropic microbial activity and community under elevated CO2 still remained large uncertainties.

林木根源有机C包括根东通过根枯落物、根系分泌物和根共生菌周转3条途径向土壤输入的有机C，它是森林生态系统中一个重要的、潜在的C汇，综述了根源有机C与其微生物对CO2浓度升高的响应，虽然对根系寿命的变化尚不清楚，但CO2浓度升高将导致根系生物量、生产量、死亡量和分泌物的增加；同时，CO2升高亦促使根共生菌生物量的增加而增加了共生菌的C归还潜力，表明CO2升高使根源有机C的输入增加了，CO2农度升高情况下，根系化学性质和形态特征的这些变化均有利于增加土壤C的吸存；而根分布深度的降低则对土壤C吸存不利；CO2浓度升高对根分泌物和根共生菌质量的影响研究则极少，CO2浓度升高下土壤微生物活性和群落组成的变化存在较大的不确定性，目前CO2浓度升高下林木根源有机C对森林长期C吸存的贡献仍很不清楚。

More neurospheres were derived from the hippocampi of mice that had exhibited prolonged seizures than from those in which seizures occurred in short bursts.

然后发现长时间惊厥的小鼠所产生的神经群落较短期爆发惊厥的小鼠多。

We indicated from our test that the treatment concentration of 50 mg· L- 1 and exporsure time with 4h by the herbicide were believed to be the threshold concentration and threshold time for causing abnormal cell mitosis in Secale cereale and Hordeum vulgar, respectively.

人们对它的作用机理和作用部位[2]、它在土壤中吸收和降解[4]以及草甘磷对土壤微生物群落的影响作过一定的研究[5]，并已开始抗草甘磷转基

The ecological water level enhanced by 30m could provide appropriate environment for hydrophytic succession of wetland plants.

研究确定的最小生态水位具有一定科学性，湿地生态水位提高30cm，能够为该区湿地植被群落的水生演替提供适宜生境。

Species tends to have individualistic optimal response in the community niche hypervolume.

结果表明物种在群落生态位超空间中呈现出具有各自的最适适应。

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。