查询词典 diversity factor

The results demonstrated that the offspring plants had certain genetic diversity. The pink and the nacarat/saffron plants had the highest genetic diversity. When RP1 or R01 as father or mother was crossed with the other color varieties, their F1 populations had significant segregation chromatogram.

对RP1的49个子代个体，R01的123个子代个体，进行ISSR遗传多样性分析及主成份分析，子代个体间存在一定的遗传差异，其中仍然以表现粉色及桔黄/桔红色的个体遗传多样性最丰富。

According to the above study result, the diversity of microorganisms population in the SUFR system is complex and the bio-community formed in the SUFR system is stable. The close relations between abundance of bacteria and nutrients were found. The correlation between heterotrophic bacteria and COD was 0.949. The correlation between organic phosphate bacteria and TP was 0.815. The correlation between nitrosobacteria and NH3-N was 0.909. The correlation between disnitrifier bacteria and TN was 0.653. These inneglectable great factors effecting on phosphorus-uptake and phosphorus-release of phosphorus accumulating organisms are the influent COD、the concentration of DO、the sludge retention time、the temperature. The diversity of organic phosphate bacteria population in the SUFR reactor was complex and there is no phosphate bacteria taking the absolute superiority in quantity. The near-native pure culture method powerfully complement the traditional pure culture technique and enrich culture technique. The sludgy bioactivity is very good in whole SUFR reactor. By the quality of being biochemistry, the anaerobic phase is higher than anoxic phase and the anoxic phase is higher than aerobic phase of SUFR.

通过以上试验内容研究发现，SUFR 系统中的微型动物种群较多，微生物生态系统稳定；系统中微生物的数量与营养盐的含量密切相关，其中总异养菌与COD的相关系数r 为0.949，有机磷细菌与TP 的相关系数r 为0.815，亚硝化菌与NH4+-N的相关系数r 为0.909，反硝化菌的数量和TN 的相关系数r 为0.653；污水生物除磷工艺中进水COD 的浓度、DO 浓度、泥龄的长短、温度都是影响聚磷菌释磷及吸磷效果的不可忽视的因素；SUFR 系统中的磷细菌呈现种群多样化的趋势，没有占绝对优势数量的磷细菌；微孔滤膜近自然培养法是对传统纯培养技术和富集培养技术的有力补充；整个SUFR 反应器系统中污泥的生物活性很好，就可生化性来讲，厌氧反应器大于缺氧反应器大于好氧反应器；按照动力学方程式求出的细胞生长动力学特征值和SUFR 脱氮除磷系统工艺的实测值结果基本吻合。

Diversity and phylogeny of rhizobia isolated from root nodules of Sesbania cannabina in Jinshajiang arid river valley;2. To study the diversity and phylogeny of rhizobia from Sesbania cannabina in JinShaJiang arid river vally in Sichuan,48 rhizobia was isolated,nodulated,and studied by numerical taxonomy,BOXAIR-PCR,16S rDNA PCR-RFLP,sequences analysis of 16S rDNA and GSⅡ.

从金沙江干热河谷区田菁根瘤中分离得到48株根瘤菌，在对其进行回接实验后，采用数值分类、BOXAIR-PCR、16S rDNAPCR-RFLP、16S rDNA和GSⅡ序列分析方法对这些菌株进行研究，以揭示在金沙江干热河谷区这一特殊地理环境下田菁根瘤菌的多样性和系统发育地位。

The diversity index of rotifers was the highest observed. The results show that the higher the trophic level of the lake, the higher the density diversity index of rotifers in definite trophic level range (from oligotrophic to mesotrophic).

轮虫类的多样性指数最高，并且当湖泊在一定的营养水平范围内（贫营养型向中营养型过渡）时，轮虫的密度多样性与湖泊的营养水平呈现相同的变化趋势。

The number of forward sequences was higher than that of reverse ones in Bos taurus, but with similar genetic diversity. While the reverse sequence from Ovis aries had higher genetic diversity than forward ones.

在牛上，正向片段跟反向片段有较近的遗传距离，而在绵羊上正、反向片段的遗传距离较远。

The high haplotype diversity and nucleotide diversity were corresponding to very large population size and extensive distribution of Pelophylax nigromaculata in Palaearctic Region and Oriental Region.

这样高的单元型多样性和核苷酸多样性与黑斑侧褶蛙作为古北界和东洋界的广布种，种群大是相应的。

The birds of Passeriformes have more important contribution to the group diversity in the Three Gorges Reservoir. Zigui County has the maximal family diversity,while Badong County has the upmost species composition.

类群多样性分析显示，以中小型鸟类为主的雀形目鸟类对三峡库区鸟类多样性贡献最大，秭归具有最大的类群多样性，而巴东则具有最多的物种数。

From above .we come up with the con servation of species diversity and strategies for ecological restoration in wetland, that is strengthening construction of natural conservation region, harmonizing human activities with conservation of species diversity, controlling strictly insect and rat pests developing artificial grassland and so on.

据此，我们提出了相应的湿地物种多样比保护和生态恢复对策，即：加强自然保护区建设、协调人类活动与物种多样性保护的关系、严格控制载畜量、发展人工草地等主要措施与建设。

With the study of temporal-spatial distribution of siol microbial diversity,we found species richness index,diversity index and evenness index had a falling trend,and the downtrend was slighly different.

在研究土壤微生物的时空分布中发现，土壤微生物现物种丰富度指数、多样性指数、和均匀度指数随海拔升高，都呈缓慢下降趋势，并且在不同地区下降趋势略有差别。

Therefore,"Huang Chi Yun Nan ++ Gui Ying Sloanea" diversity than the "mangrove trees ++ Nanling mangrove leaf 栲" diversity, greater abundance index.

因此&黄枝润楠+猴欢喜+大叶桂樱&群落多样性比&栲树+南岭栲+大叶栲&群落多样性高，丰富度指数较大。

But GST= 0.156, Nm=1. 588. As a result, the foundation of Youyongchi Avicennia marina population was the result of the migration of hypocotyles and human factors.

这项工作可以为海岸防护林中新引进种类的判定以及为研究种群建立者效应方法的确定提供科学依据。

The two-dimensional CDRC-ADI-FDTD update equations for collision unmagnetized plasma are induced. The unconditional stability of the CDRC-ADI-FDTD formulation for collision unmagnetized plasma is obtained by the examples.

推导了碰撞非磁化等离子体中的二维CDRC-ADI-FDTD迭代公式，并用算例验证了碰撞非磁化等离子体CDRC-ADI-FDTD算法也是无条件稳定的。