查询词典 evenness

Fagaceae and Theaceae are the dominant families, with the RBA value being 60.1% and 12.2%, respectively. The Shannon Wiener index of the tree layer is about 3.0. The indicies of H ′ and Pielou evenness index both increased with sampling area, and stabilized at 1500 m 2 and 1000 m 2, respectively.

多样性分析结果表明，乔木层Shannon-Wie-ner指数为3.0左右；随着取样面积的增加，H'值和均匀度指数逐渐增加；1500 m2时H'趋于平稳，1000m2时E趋于平稳。

For morphosis,young stage multifidus MRI charactered as full shape,evenness and regular outline,uniformity low signal,intramuscular spatia being revealed none or as single line,puncta form;however,old stage multifidus MRI charactered as atrophy shape,introcession outline,heterogeneity higher signal,intramuscularly spatial being revealed as multiple line-lamellar form or featheriness or grid form.

在形态结构方面，年轻组多裂肌表现为形态饱满、轮廓平整、均匀低信号、肌内间隙不显示或呈单个线状或点状显示；老年组多裂肌表现为形态萎缩、轮廓凹陷、信号不均匀性增高、肌内间隙呈多发线片状、羽毛状或网格状显示。

Bieti lost its habitat continuously in recently decades associated with the extension of rangelands and farmlands, as well as firewood collection etc. The monkey live mainly in primary fir forest and the mixed conifer forest, to evaluate the status of the monkeys' habitat, we employed GIS and RS software to identify the habitat types with five Landsat TM/ETM+ satellite imagery in winter of 1986, 1992, 1997, 2001 and 2006 years respectively. The work resulted in: 1 the size of summer grazing lands, farmlands, and fir forest was 13 100 hm2, 6 400 hm2, and 30 500 hm2 in 2006 respectively; 2 during the past 20 years (1986-2006), the size of fir forest (including primary fir forest and the mixed conifer forest) decreased by 14.6%(5 200 hm2), summer grazing lands and farmlands increased by 47.2%(4 200 hm2) and 14.3％(800 hm2) respectively; and 3, during the past 20 years, the number of firry forest patches increased by 68.4%, the mean size of firry forest patches decreased by 49.3%(from 15.1 to7.6 hm2), the largest patch index of firry forest decreased 54.9%; the patch richness had no change, but the Shannon's diversity index and the Shannon's evenness index increased by 2.7% respectively.

为了评估该物种的栖息地现状和变化情况，我们通过野外调查工作，应用GIS和RS技术，分别解译了1986年、1992年、1997年、2001年和2006年的Landsat TM/ETM+冬季卫星影像，并对解译结果进行了计算和分析，得到了以下西藏种群栖息地的主要结果：1）现有暗针叶林（包括原始针叶林和针阔混交林）面积是30 500 hm2，夏季牧场面积是13 100 hm2，农田面积是6 400 hm2；2）在过去20年间（1986-2006年），暗针叶林面积减少了14.6％（5 200 hm2），夏季牧场面积增加了47.2％（4 200 hm2），农田面积增加了14.3％（800 hm2）；3）在过去20年间，暗针叶林的斑块数量增加了68.4％，平均斑块面积下降了49.3％（从1986年的15.1 hm2下降到2006年的7.6 hm2），最大的斑块指数下降了54.9％；景观丰富度并没有变化，但Shannon多样性指数和Shannon均匀度指数分别增加了2.7％。

Gleditsia heterophylla ; richness indices ; evenness indices ; species diversity indices ; community type and structure

野皂荚；丰富度指数；均匀度指数；物种多样性指数；群落类型和结构

The population dominance index, Shannon-Wiener index, evenness, niche breadth and community similarity were used to analyze the diversity and eco-niche of soil moniliaceous hyphomycetes in five ecosystem-types.

利用种群优势度、Shannon-Wiener多样性指数、均匀度、生态位宽度、群落相似性等指标对该地区不同生境的土壤淡色丝孢菌物种的生态多样性及物种生态位进行了分析。

Considering the hysteresis produced by input factors, the period evenness method is presented to eliminate hysteretic effect.

考虑到投入要素产生的作用往往具有滞后性，提出了利用周期平均的方法来消除滞后效应的影响。

The Study on the Productivity of phyllostachys heterocycal forest mixed with broadieaved trees in East Fujian showed that the mixed forest had higher productivity compared with pure forest, the mean DHB beight and mean weight and M of culm increased by 17.9%、8.7%、37.53% and 25.6% respectively, the density, evenness, uniform and ILA were all higher than pure forest

对闽东12年生竹阔混交林中毛竹生产力的研究结果表明：竹阔混交林比纯林具有较高的生产力，毛竹的平均胸径、平均竹高、平均竹秆产量、平均蓄积量分别比毛竹纯林增加了17.9%、8.7%、37.53%和25.6%；立竹度、均匀度、整齐度、叶面积指数均比毛竹纯林高。

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。

Defoliations have most species and high individual density, with jarless community structure; shrubs have high evenness with less jarless community structure; herbages have less species and individual density, with predominant species conspicuous.

在自然生态系统中蜘蛛种类多，种群数量大，全是掠食性的，且捕食的对象极大部分是害虫，因此蜘蛛是一类重要的害虫天敌，在生物防治尤其是林业害虫防治方面具有重要作用(宋大祥等，2001)。

The diversity index and evenness index of tree species in medium-aged stands averaged 1.79 and 0.53. The dominant family for the forest was Fagaceae in terms of importance value, and the dominant tree species were Castanopsis eyrei, C. sclerophlla, Lithocarpus harlandii, and Cyclobalanopsis glauca.

肖坑亚热带常绿阔叶林的树种多样性较低，中龄林林分平均多样性指数和均匀度指数分别为1.79和0.53；依据优势度划分，该地区常绿阔叶林的优势科为壳斗科，优势种为甜槠、苦槠、青冈和东南石栎。

Vishnu entered a dark fourth dimensional dream that did not support his field or continued life.

毗瑟挐进入了一个第四密度的黑暗梦想，那里并不支持他的能量场或继续生命。

Leaders and decision-making persons use it to collect the data, including the information of unit work, handing in fee, oweing fee, prepaying fee,changing and afterpaying and account transfering of joining-insurance employee, and account paying of all kinds of insurances from hospitalization insurance institutions.The collected data is picked up, organized, switched and showed to user.

该子系统主要面向各级领导、决策分析人员；从各个医疗保险经办机构和定点医疗机构采集数据，包括在各个医疗保险经办机构处理的单位办公信息，单位缴费、欠费、预缴费信息，参保职工变更信息，参保职工增减变动信息，参保职工补缴信息，参保职工帐户划拨信息：包括各定点医疗机构处理的各险种帐户支出信息，各险种的统筹金支付信息等；将采集的数据提取，组织和转换，然后展示给用户。