英语人>网络例句>优势种 相关的搜索结果
网络例句

优势种

与 优势种 相关的网络例句 [注:此内容来源于网络,仅供参考]

The dominant species at arbor layer are Washiongtonia robusta, Ficus microcarpa, Roystonea regia, Delonix regia, Caryota ochlandra, Alstonia scholaris, Bauhinia variegate, Bombax malabaricum, Erythrina orientalis, Cinnamomum japonicum, Acacia onfuse. The dominant species of shrub layer mainly are Rhododendron simsii, Osmanthus fragrans, Hibiscus rosa sinensis.

植物群落中乔木优势种的组成主要有:华盛顿棕榈、榕树、大王椰子、凤凰木、鱼尾葵、盆架子、洋紫荆、木棉、刺桐、天竺桂、台湾相思等;灌木优势种主要有:杜鹃、桂花、扶桑。

Asian (47.4%) and temperate genera mainly constituted by North temperate (50%) and E. Asian (50%). So that the geographical elements are discomplex. In the 25 species of arborous layer, 76% is the middle subtropical zonal type, 16% south subtropical zonal type and 8% north subtropical zonal type, of which the first 6 positions of important value index were all middle subtropical zonal type. This showed that the community was subtropical characteristic. There are 59.5% evergreen and 40.5% deblade of 79 known species in which the mid-phaenerophytes is the first position of all, accounting for 27.8%, and the evergreen broad-leaved species constituted the majority of meso-phaenerophytes which accounts for 15.2%.

乔木层多数优势种为稳定型种群,所以乔木层优势区系成分相当稳定,表明该群落为一种顶极群落。59个种子植物属只有10个分布区类型和4个变型,地理成分不复杂,其中热带分布27属占46.6%,温带分布31属占53.4%;热带分布以泛热带和热带亚洲分布为主,分别占52.6%和47.4%,温带分布为北温带和东亚分布各占50%。25个乔木层树种中,中亚热带地理分布类型的占76%,南亚热带地理分布类型的占16%,北亚热带地理分布类型占8%,重要值指数排列前6名的均为中亚热带地理分布类型,所以该群落为亚热带性质。

In the riverine wetland, there are 96 species of vascular plants belonging to 87 genera and 41 family and their biodiversity indexes lie between 0.099-1.191, plant community is of simple structure and the advantaged species is planted outstandingly, mostly single excellent community. There are also certain amounts of wetland birds, a large percentage of which are Ardeidae, Gallinula chloropus and Tachybaptus ruficollis .

拟建的化工园区沿江湿地共有维管植物41科87属96种,多样性指数介于0.099-1.191之间,植物群落的结构比较简单,优势种突出,大多为单优势群落;湿地鸟类种类比较丰富,以鹭类、黑水鸡、小鸊鷉所占比例较大:沿江圩田粮棉区为高产稳产地区,粮食作物以水稻、小麦为主。

Based on data collected at four stations in Daning River in the spring of 2004 and 2005, phytoplankton community structure, vertical distribution, abundance, biomass, C contents, diversity index, richness index and evenness index were studied. The causes of eutrophication and water blooms in Daning River were analysed and control measures were then put forward. The dominant species were Asterionella Formosa, Cryptomonas ovata, Cyclotella caspia, Stephanodiscus neoastraea in the spring of 2004 and those were Pandorina morum, Eudorina elegans, Cyclotella caspia, Cryptomonas ovata in the spring of 2005. Average cell densities, biomass, C contents in the spring of 2004 and 2005 were 171.1×10^5 cells/L, 12.2 mg/L, 1732.2g C/L and 113.1×10^5 cells/L, 10.1 mg/L, 1395.9g C/L, respectively.

报道了大宁河2004年春季和2005年春季浮游藻类的种类组成、垂直分布、数量、生物量以及C含量的调查结果,并应用多样性指数、丰富度指数和均匀性指数对其水质进行了综合评价;对大宁河蓄水后出现的富营养化现象和春季发生&水华&的原因进行了探讨,同时提出了控制水体富营养化的建议。2004年春季,藻类优势种为美丽星杆藻、卵形隐藻、里海小环藻和新星形冠盘藻;2005年春季的优势种为实球藻、空球藻、里海小环藻和卵形隐藻。2004年和2005年的细胞密度、生物量和C含量分别平均为171.1×10^5 cells/L,12.2 mg/L,1732.2g C/L和113.1×10^5 cells/L,10.1 mg/L,

The dominant species of them were Artemisia halodendron Setaria viridis respectively; The reconverted grazing land and the natural reconverted farmland consisted of herb layer and microbiotic crust layer, but itsmain layer was herb layer. The dominant species of them were Cenchrus calyculatus Artemisia scoparia respectively.

草本片层的现阶段优势种为狗尾草;放牧自然恢复地和退耕自然恢复地均由草本片层和生物结皮片层构成,但其主要片层均为草本片层,该层现阶段优势种分别为黄蒿和光梗蒺藜草。

In March, May and July, Cyanophyta was the dominant one, with high proportions of 45.6%, 55.9% and 87.7%, respectively, whereas the proportions for Bacillariophyta decreased to 30.1%, 25.9%, and 1.1%, respectively. In November, proportions for Bacillariophyta and Chlorophyta were equivalent, 40% each, and the Cyanophyta composed below 20%. In December, Bacillariophyta made up 25.6% and Cyanophyta 38.2%. In March, May and July, dominant species of Cyanophyta were Microcystis aeruginosa, Pseudoanabaena, and Gloeothece linearis. In dry January, November and December, species of Bacillariophyta were dominated by A chnanthes sp., Melosira ambigua, Melosira granulata and Cyclotella meneghiniana.

全年中,蓝藻与硅藻比例变化较大,二者呈相反的变化趋势。1月份硅藻占较高比例(63.1%),蓝藻较低(〈20%);3、5、7月份蓝藻比例较高(分别为45.6%、55.9%、87.7%),而硅藻较低(30.1%、25.9%、1.1%);11月份硅藻与绿藻比例相当(各占40%),蓝藻低于20%;12月份硅藻与蓝藻比例分别为25.6%与38.2%。3月份和丰水期浮游植物优势种主要为铜绿微囊藻、假鱼腥藻和线形粘杆藻等蓝藻种类,枯水期的1月、11月和12月主要以曲壳藻类、模糊直链藻、颗粒直链藻和梅尼小环藻等硅藻种类为优势种

The results showed:(1)The flora of community is rich and complex,and it belongs to the transitional zone for many genera,the subtropical-temperate zone geographical composition of genera are dominant,about 51.47% of the total genera,and there are characteristics which form subtropical to temperate zone transition.(2)The species are mostly composed of Fagaceae,Lauraceae,Anacardiacea...

结果表明(1)该群落区系组成比较丰富和复杂,属于许多属的过渡地带,具有从亚热带向温带过渡的特征;(2)种类组成以壳斗科、樟科、漆树科、卫矛科、榆科、五加科、金缕梅科等为主,但优势种、建群种以温带属为主;(3)种群生活型谱以高位芽占绝对优势,群落垂直结构明显。

Species were found in Vegetables Base of Bali Town, belonging to 18 genera of 17 families from 7 orders in 3 classes; Hypotrichida, Colpodida and Prostomatida were dominant groups; Woodruffia rostrota, Euplotes affinis, Strongylidium muscoruns, Uroleptus piscis and Cyclidium simulans were dominant species in Vegetables Base of Bali Town.

在八里镇蔬菜基地的土壤中鉴定到纤毛虫34种,隶属于3纲、7目、17科、18属;下毛目、肾形目、前口目为其优势类群;吻吴氏虫、近亲游仆虫、苔鲜圆纤虫、鱼形瘦尾虫、似膜袋虫等为其优势种

Results The re158rodents belonged to3genus in three townships of Lanping County were captured and Rattus norvegicus caught in residential areas accounted for90.09%.Apodemus agrariuswas predominant in the field accounted for63.16%.The infectious rates of Hattanvirus in Rattus norvegicus and Suncus murinus were7.69%and25.00%,respectively.Hattanvirus was not detected from other animals.The IgG antibody positive rate to Hattanvirus in the serum of hosts of rodents and human population were12.20%and7.00%.

结果 兰坪县3个乡镇共捕获5属158只啮齿动物,其中居民区中褐家鼠的构成比为91.09%,为优势种;野外高山姬鼠的构成比为63.16%,为优势种。3个乡镇中仅见中排乡捕获的褐家鼠汉坦病毒抗原的感染率为7.69%(5/65),臭鼠句鼠青为25.00%(1/4),其他捕获的动物中未查出汉坦病毒抗原;宿主动物血清中汉坦病毒IgG抗体阳性率为12.20%(5/41),其中褐家鼠的阳性率为12.50%(5/40);人群中汉坦病毒IgG抗体阳性率为7.00%(3/43)。

Results There158rodents belonged to3genus in three townships of Lanping County were captured and Rattus norvegicus caught in residential areas accounted for90.09%.Apodemus agrariuswas predominant in the field accounted for63.16%.The infectious rates of Hattanvirus in Rattus norvegicus and Suncus murinus were7.69%and25.00%,respectively.Hattanvirus was not detected from other animals.The IgG antibody positive rate to Hattanvirus in the serum of hosts of rodents and human population were12.20%and7.00%.

结果 兰坪县3个乡镇共捕获5属158只啮齿动物,其中居民区中褐家鼠的构成比为91.09%,为优势种;野外高山姬鼠的构成比为63.16%,为优势种。3个乡镇中仅见中排乡捕获的褐家鼠汉坦病毒抗原的感染率为7.69%(5/65),臭鼠句鼠青为25.00%(1/4),其他捕获的动物中未查出汉坦病毒抗原;宿主动物血清中汉坦病毒IgG抗体阳性率为12.20%(5/41),其中褐家鼠的阳性率为12.50%(5/40);人群中汉坦病毒IgG抗体阳性率为7.00%(3/43)。

第4/84页 首页 < 1 2 3 4 5 6 7 8 9 ... > 尾页
推荐网络例句

I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援,我们正徵召国家所有各种的力量:我们的外交及发展,我们的经济力量与道德劝说,所以你们与其他军人不须要孤独地负起国家安全的责任。

Imagine yourself to be an actor in a play on the stage.

设想你自己是一个演员在舞台上表演。