查询词典 diversity

Recent studies showed that clonal diversity may increase primary production, maintain faunal richness and/or abundance, and affect biogeochemical processes, as does species diversity.

一些研究发现克隆多样性的提高可增加初级生产力、维持动物丰富度和多度，并影响生物地球化学过程。

It indicates that decrease in taxon number could be compensated with increasing density of some taxa. Therefore, loss of some taxa in a faunal community may lead to a constant or higher diversity ranges. Due to this reason, we do not suggest that DG index could be used as a diversity measurement.

另外，DG指数与类群数(r=0.648， P=0.000)和类群密度(r=0.487， P=0.000)呈明显的正相关，类群数的下降可以通过部分类群密度的上升而获得补偿，群落的类群丢失后却可以获得一个不变的甚至更高的多样性值。

At the same time information index showed genetic diversity index (0.3456) of great ball horned toad Wrinkle is greater than that (0.3456) of Eulecanium gigantean Shinji big balls horned toad.This shows the genetic diversity of big ball horned toad Wrinkle is rich .

扁平球坚蚧在白蜡和刺槐两种不同寄主植物种群之间存在一定程度的差异，这种差异与扁平球坚蚧的生物学习性和寄主植物有关。

The haplotype diversity and the nucleotide diversity of total samples were 0.851±0.028 and 0.01356±0.0008, respectively.

总样品的单元型多样性和核苷酸多样性分别为0.851±0.028和0.01356±0.0008。

Comparing the genetic diversity of Coreius heterodon with that of other fishes, the experiment revealed that the genetic diversity of Coreius heterodon in the lower reach of the Yangtze River was a little lower.

通过与其他鱼类的遗传多样性的研究结果比较可初步判断，长江下游铜鱼群体的遗传多样性较低。

There was great diversity index among genetic trait of 50 barley. The anomic trait used as tested materials was analyzed by cluster. Cluster analysis showed that 50 barley could be classified into 5 groups at the level of GD 3.28; The 50 barleys were analyzed by A-PAGE to study genetic diversity of hordein.

各农艺性状的遗传多样性指数都较大，具有丰富的遗传多样性；对供试材料的农艺性状进行聚类分析，50份大麦材料在遗传距离3.28时可被聚为5大类。

The comparative study on vegetation background survey of the stationsand the comparison on level of phytocoenology on zonal habitats indicates thatthe diminishment of the numbers of families,genus and species,compositionof life types,diversity of communities and habitats,;and the increscence in theproportion of photosynthesis functional groups of C3/C4 plant,richness ofspecies,density of tussock and tiller,diversity of species,evenness,leaf areaindex,leaf area duration,dry matter production of communities alongside thelatitude increasing and the temperature decreasing;and the dynamic curve ofthe community productivity also tend to steadily increase along with thetemperature going up and the heat accumulation gradually in moderate-temperate steppe station from violent fluctuation along with seasonal badly-distribution of precipitation in warm-temperature steppe station;manifestingthat transformable tendency of productivity pattern of the community from morevigorous net assimilation,sparser and higher crops stricture of tussock and tiller,and possession on more resources by less species inclined to thicker in densityof crops,superior effectiveness of multi-leaves and pattern of multi-speciesresource sharing,reflecting that bigger disparity of the vegetationcharacteristics and the style of the community growth in the two differentthermal-type steppe stations owing to background of natural-historicenvironment and combination of water and heat.

内蒙古草原区两个不同热量型研究站点植被本底调查和显域地境群落学水平的比较研究表明：随纬度增加和气温降低，植物科、属、种的数目，生活型组成，群落类型和生境类型的多样性均趋于减少，而C3/C4光合功能群比值和群落的物种丰富度，株丛密度，物种多样性，群落均匀度，叶面积指数，叶面积持续时间和群落干物质生产能力均趋于增加，群落生产力动态曲线从随天然降水的季节分布不均而剧烈波动趋向于随气温逐渐升高和热量逐步积累而稳定增长，显示出两站点植物群落从较为旺盛的群体净同化作用、较为稀疏高大的群体结构和少数物种占有较多群落资源的生产力格局向较高的群体密度、优良的多叶性能和多物种资源共享的群落生产力格局转变，反映出在内蒙古草原区不同的自然历史环境背景和不同的温度条件及其水热组合状况影响下，两个不同热量型草原站点植被性质的分异特征和显域地境群落生长模式的较大差别。

Community structure of soil nematode changed little with altitude, and soil organic matters were mainly decomposed by fungi. Among the three vegetations including sparse shrubland, semiwet indeciduous broad-leaved trees and wet indeciduous broad-leaved trees, there are significant differences in Shannon's diversity index, Simpson's dominance and diversity index among different communities.

成熟指数值表明，高黎贡山土壤线虫群落结构较稳定；线虫通路比值计算表明，土壤有机质主要依靠真菌分解途径；Shannon-Wiener多样性指数、Simpson优势度和多群落间比较多样性指数在低海拔的灌丛林与半湿润常绿阔叶林和中山湿性阔叶林有显著差异。

Have led to high species diversity and genetic diversity of lac insects , which provide good condition for lac pro2

我国紫胶虫物种和遗传资源丰富，生态环境类型多样，为紫胶虫资源的可持续利用提供了

The authors investigate and study the species diversity of Leucaena leucocephala plantation. discuss its function of ecology and the relation between species diversity and the function of ecosystem.

通过对金沙江干热河谷新银合欢人工林物种多样性方面的研究，讨论了种在退化生态系统功能恢复中的作用及物种多样性与生态系统功能的关系。

No clear conclusions can be made about the predictie alidity of specific measures, they found, except for criteria for the underuse of drugs for cardioascular disease.

除了心血管病不合理用药标准外，对于特定评价方法的预测效度没有明确的结论。

The third and last is that almost all of them, being infinite in number, have been impostures, and by idle and crafty brains merely contrived and feigned after the event past.

第三、即最后一点是：几乎所有这些不胜枚举的预言都是欺人之谈，都是在事件过后由无聊而狡猾的脑筋推测与凭空捏造的。