age class造句

• The 1st age class rhizome emerges at mid of growing season
  1龄根茎是在生长季中期开始形成的。
• The negative correlation of the dry matter production to the age class of rhizome indicates level of significance ( p < 0 . 05 , po . ol ) in leymus chinensis , calamagrostis epigeios and c . rigidula populations
  羊草、牛鞭草和硬拂子茅种群根茎的干物质积累量与龄级间的负相关关系达到显著和极显著水平。
• The age structures of c . auratus , s . chuatsi , c . alburnus and c . erythropterus were mainly consisted of 1 ~ 3 age classes . c . auratus , c . alburnus and c , erythropterus grew slowly in the niushan lake . 3
  鲫、鳜、翘嘴?和红鳍原?的年龄分别由5个、 4个、 5个和3个年龄组组成，以低龄鱼为主，生长较慢。
• The rhizome of grass , including leymus chinensis , hemarthria japonica , arundinella hirta , calamagrostis epigeios and c . ? rigidula populations , can normally live for 3 to 4 years which is the same as the age class
  羊草、牛鞭草、野古草、拂子茅和硬拂子茅种群根茎的存活年度一般为3 4年，根茎的龄级数与存活年度相同。
• The reproductive tiller is obviously higher than the vegetative , and there is little difference among all of age classes reproductive tiller at height and biomass , but the vegetative tiller is decreasing with the increasing age class
  生殖蘖明显高于营养蘖，但各龄生殖蘖的高度和生产力差异不明显，营养蘖随着龄级的增加而明显下降。
• The bud bank is composed of 3 age classes bud on leymus chinensis , arundinella hirta and hordeum brevisubulatum populations , 2 age classes bud on hemarthria japonica , calamagrostis epigeios and c . rigidula populations . the age structure of bud is obviously an increasing model in all of 6 grass species
  羊草、野古草和野大麦种群芽库由3个龄级组成，牛鞭草、拂子茅和硬拂子茅种群由2个龄级组成， 6种禾草芽库的年龄结构均为明显的增长型。
• Based on long - term site studies and all - around investigation , we ascertained six subpopulations of lilium isingtauense at different altitude , applied gps , gis to make certain the orientation of individuals and mensurated their heights in each subpopulation , and estimated the age class of lilium tsingtauense . at same time some environment factors have been test with which the species growth and development have relationship . lilium tsingtauense , which mainly distributes in mountain lao , is an endemic , rare and endangered plant in china
  我们选择青岛百合作为范例开展植物复合种群的研究，在长期全面调查的基础上，选择典型分布区域设立了研究样带，确定了青岛百合复合种群的六个局部种群，并围绕个体生长阶段进行了长期的跟踪调查，应用gps对每株植物的空间位置进行了定位，测定了植株的高度，估测了植株的年龄等，在此基础上将取得的调查资料与地理信息系统( gis )分析工具相结合，对青岛百合复合种群进行了较为全面的研究。
• The study has investigated and compared soil physical , chemical , biochemical properties of eight stands on paired sites in mountainous regions of northeastern china , trying to look for the mechanism of soil degradation and the change trend of soil properties in different age of plantations in relations to forest productivity . the eight stands are 4 first rotation of larix olgensis plantations with different age classes , the second rotation of larix olgensis young stand , pinus sylvestris var
  本文通过固定和典型样地，对东北山地不同生长发育阶段落叶松人工林和二代落叶松幼龄林以及与二代落叶松幼龄林同一块林地的樟子松幼龄林、天然次生林、落叶松水曲柳混交林等8个林型土壤质量进行了对比与分析，深入探讨了落叶松人工林土壤质量降低的机理和不同发育阶段土壤质量变化规律以及与森林生产力变化的关系，并提出了林地土壤质量调控措施。
• Based on the observation data obtained from 69 sampling sites of different age class forests , and by using biomass expansion factor function , the regression equations of stand biomass and volume of the main forest forests in pearl river delta were built , and the regional forest biomass and its dynamics were estimated on the basis of forest inventory data
  摘要利用生物量转换因子连续函数法，通过69组不同龄级的森林样地实测数据，拟合了珠江三角洲主要森林类型的生物量和蓄积量之间的回归方程，并结合3个时段森林清查资料，估算了区域森林生物量及其动态。
• The tiller - nodes of 6 species of rhizome grass , including leymus chinensis , hemarthriajaponica , arundinella hirta , calamagrostis epigeios , c . rigidula , hordeum brevisubulatum in songnen plain , can live at best for 2 to 5 years , and do 2 to 4 propagating generations which is the same as the age class of tiller in number . the age structure of population is an increasing model which the young tiller is more than the old at quantity and biomass . during the whole growing season , the age spectrum varies for each species
  松嫩平原，羊草、牛鞭草、野古草、拂子茅、硬拂子茅和野大麦等6种根茎型禾草种群的分蘖节最多可以存活2 5个年度，可以进行营养繁殖2 4个世代，分蘖株的龄级数与分蘖节营养繁殖的世代数相同，在种群分蘖株的数量和生物量上，生长季的各个时期均以幼龄分蘖株占较大比例，呈现为明显的增长型年龄结构，各种类的年龄谱组成各异。
• But different age paragraph level of expenses of spending of worker medical treatment is put in very big difference , as a whole the area writes down account of every worker individual to delimit in cost of affirmatory unit pay when scale , want to consider age factor , those who define different age class is different delimit scale
  但不同年龄段的职工医疗消费支出水平存在很大差别，统筹地区在确定单位缴费记入每个职工个人帐户划入比例时，要考虑年龄因素，确定不同年龄档次的不同划入比例。
• The small fishes , including c . auratus , c . erythropterus , h . leucisculus , p . parva , t . swinhonis and h . swinhonis , were abundant in the catch . p . parva and t . swinhonis had only one age class . the population of a . rivularis and s . nigripinnis had two age classes and most of them were one year old
  鱼类资源表现出一定的小型化趋势，渔获物中鲫、红鳍原? 、 ( ?又鱼) 、麦穗鱼、似(鱼乔) 、黄(鱼幼)等小型鱼类数量众多，麦穗鱼和似(鱼乔)仅有1龄，棒花鱼和黑鳍?由2个年龄组组成，以1龄鱼为主。
• The method of modified simplex was applied to optimize the models , and the fitting results show that liu - logistic model was more suitable than logistic model to the actual growth trend of form . taxus chinensis var . mairei population , and the highest growth rate of basal area was the tenth age class , namely the phase when breast diameter was 68 ~ 76 cm
  以胸高断面积代替种群生物量，分别采用logistic常规模型及刘金福提出的logistic改进模型对南方红豆杉种群的增长动态进行研究，运用改进单纯形法对模型进行优化，拟合结果表明改进模型比logistic常规模型更符合南方红豆杉种群的增长趋势，南方红豆杉种群的最大增长速度出现在第10龄级，即胸径为68 76cm时期。
• C . erythropterus , s . nigripinnis , a . rivularis , p . parva , h . leucisculus , t . swinhonis and h . swinhonisb were abundant . age structures of fishes were mainly 1 age class in the seine . p . parva , t . swinhonis , c . erythropterus and acheilognathinae , including r . ocellatus , r . lighti and p . imberbis , were the numerically dominant species
  用围网共采到19种鱼，其中红鳍原? 、黑鳍? 、棒花鱼、似(鱼乔) 、 ( ?又鱼) 、麦穗鱼、黄(鱼幼)等小型鱼类居多，以1龄鱼为主，红鳍原? 、似(鱼乔) 、麦穗鱼和(鱼旁) (鱼皮)是优势种群。