生长地
- 与 生长地 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In the first stage, the initial of morphologization of cormel happened, corresponding with the period from 4 leaf to full-blown, the growth and development of stolon mainly occured, while the number of cormel was a few and its weight slowly increased.
籽球生长发育表现出阶段性,第一个阶段为籽球形态建成初期,对应于地上部4叶龄期至盛花期,以匍匐茎生长发育为主,形成籽球数量少,籽球重量增长缓慢;第二个阶段为籽球快速膨大期,对应地上部盛花期至半枯期,籽球大量形成,籽球重量迅速增加,该阶段末期籽球逐渐成熟,生长发育进程减缓。
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From the point of view of geobotany, with the method of correlative factors of growth of plants, a countrywide theoretic ecological division was done for the introduction of Camptotheca acuminata and three kinds of areas of ecological preferent zone, ecological adaptive zone and ecological unadaptable zone were divided. With the theory of synecology, the characteristic on environment, constitution, life form spectrum, diversity, similarity of plots of communities were researched. Applying the method of species association, discrete distribution, indensity index, fractal geometry, etc. to research relations between the species of the communities, space distribution of Camptotheca acuminata, structure of age of Camptotheca acuminata, in different communities. Using the theories of autoecology, distibutons of seeds on land and growth of seedlings in vertical and horizontal directions, biomass of organ of Camptotheca acuminata were analyzed. On the opinions of conservation biology, the external and internal factors impressing Camptotheca acuminata were analyzed to research the mechanism of the endangered species, and with using of CTM Model, the future development direction of Camptotheca acuminata in different communities were forecasted, and. Standing on the position of resources ecology, discussing the regularity of camptothein in Camptotheca acuminata of different sites and seeding of different resources, also the the derive technics of camptothecin.
本文从地植物学的角度,运用植物生长相关因子法,对我国喜树资源的生态适宜区进行了划分,理论上确定了我国的喜树的引种栽培的最适生活区域、生态适宜区域和不适宜生活区域;从群落生态学的角度,对野生喜树所在的典型群落的群落环境、群落组成、群落生活型谱、群落的物种多样性特点、群落样地间相似性进行了研究;从种群生态学的角度,运用种间联结性、离散分布模型、聚集强度指数、分析几何等分析手段,对野生喜树所在典型群落间的种间关系、喜树的空间分布格局、年龄结构等进行了分析;从个体生态学的角度,对不同年龄组的喜树的种子的散落的垂直分布、水平分布、时间分布及种子发芽率和千里重等特点、不同种源的人工喜树苗期特点、喜树的高生长和茎生长特点、喜树的器官生物量特点进行了研究;从保护生物学的角度,对野生喜树的濒危的内部因素和外部因素进行了探讨,并运用CTM模型对不同群落中野生喜树的种群趋势进行了预测;从资源生态学的角度,对我国地理环境下喜树中喜树碱含量的地理分布规律、不同种源的喜树幼苗中喜树碱含量变化规律进行了研究,并对喜树碱的提取工艺进行了探讨。
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The first order approximation solution of temperature and interface for the spherical crystal growth in the undercooled melt is solved by the asymptotic analysis method.
结果表明在球晶生长过程中依赖于界面温度变化的界面动力学显著地减缓了晶体生长的速度,与忽略界面动力学的情形比较,界面动力学显著地拟制了球晶界面生长。
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We found that during the growth process the double steps first grow separately and the connected by short bridge before tangential growth. After eighth or ninth layer the spiral steps would merge into intact elliptic layers. At the merging point right-handed spiral sources might appear but the left ones always overgrow it which made the whole growth topography looked like left-handed apparently. It indicated that the EAFP molecules has strong ability to adjust itself to adapt the environment. 5. Through various analysis of interactions in the EAFP crystals it indicated that there were 218 residue interactions between 12 symmetry-related EAFP molecules around one EAFP molecule, 18 strong ones and 72 weak ones .
EAFP在低过饱和度下的螺旋生长过程中会出现台阶的合并,从而表现出单-双的螺旋台阶,在小范围扫描中捕获到了这种现象,使得对螺旋生长台阶的合并过程有了更加深入的认识;并且台阶的生长受到沿晶体学b轴方向上的21螺旋对称的控制;当台阶生长至第八到第九层时,螺旋台阶会自动地形成完整的生长层,这充分说明了EAFP分子或分子簇具有良好的自身调节能力,这样在晶体生长过程中,晶体的缺陷减少,晶体质量提高,这也可说明EAFP晶体的x射线衍射能力很强的原因。
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General arithmetic frameworks of crop simulation model can be systemically classified by the crop variety, and then on the base of crops" general physiological-ecological process, it is divided into five modules. We synthetically epurate general arithmetic frameworks, covering crops" main dynamics of growth process, such as plant development stage and phenophase, photosynthesis, respiration, dry matter accumulation and partitioning , LAI, yield formation, et al, and introduce parameters to build different crops growth simulation general arithmetic.
根据作物的不同类型,对国内外作物生长模拟模型进行系统分类,再以作物的一般生理生态规律为基础,将作物生长模型划分成五大组成模块,通过系统地分析、综合,提炼作物生长模拟通用算法框架,涵盖了作物阶段发育和物候期、光合作用、呼吸作用、干物质积累和分配、叶面积指数、产量形成等主要的生长动态过程,并采用参数化建立了不同作物的生长模拟模型通用算法。
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The study results indicated: The growth and output of the Sabaigrass was in orderon condition that soil holding water ratio was between 70% and 80%. The segregatingbranch of Sabaigrass have not grow rapidly in the procreative period when the soilheld higher(90~100%) or lower water (40~50%), and in August the death ofsegregating branch appeared.The growth of laminae was also impacted, the quantityor length of laminae, even shorter than 80cm. Finally with the result that the outputdecreased evidently.In June, the nutrition blooms in this time, the growth ofsegregating branch of Sabaigrass was affected by the field waterlogging, the caudexand segregating branch were half less than in the normal condition.
如果土壤含水量过高(90~100%)和过低(40~50%),龙须草整个生育期没有分蘖快速增长的现象,进入8月份,甚至还出现分蘖死亡的现象,叶片的生长也受到很大影响,叶片总数极显著地减少,叶片的长度缩短,长于或等于80cm的叶片根本没有,最终导致产量显著降低;尤其是在6月份龙须草营养旺盛生长的时期,大田淹水极大地影响龙须草的生长,抑制分蘖的发生,收获时龙须草的总茎蘖数只有正常的一半。
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With the Sand culture method, influences of different magnesium levels (0%、50%、100%、150%、200% and 300%) was explored to the wheat seedlings of different stages. Many targets such as plant height, root length, biomass, content of chlorophyll, activity of root, RGY, RGR and ratio of root to crown of the wheat were mensurated at the time of 7d, 15d and 30d of two leaves stage of wheat seedlings after their endosperms were removed at different magnesium levels.The results showed that different magnesium levels had unlike influences over the wheat seedlings.
以小麦为试材,采用砂基培养的方法,在镁浓度分别为对照组的0%、50%、100%、150%、200%和300%的营养基质上,培养剔除胚乳后的二叶期小麦幼苗7d、15d及30d,并分别测定该3个时间段小麦幼苗的株高、根长、地上部和地下部的生物量、叶绿素含量、根系活力以及相对生长速度、相对生长速率和根冠比等指标,研究不同供镁水平对不同时期小麦幼苗生长速率的影响。
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Comparative study on two levels of population and modules of mutualspecies in the two stations demonstrates that feature index tend to diminish suchas height,tussock amplitude,size,number,density and dry weight;and thegrowth analysis index incline to increase such as RGR、ULA、chlorophyllcontent and effectiveness of plant multi-leaves of the populations and DULA、DUMR、DAGA and DRGRa of the modules;and the dynamic curves of thepopulations and the modules also tend to steadily increase along with thetemperature ascending,heat accumulation and combination between water andheat in moderate-temperature steppe from fierce fluctuation alongside naturalprecipitation in warm-temperature steppe,illustrating that the transformabletendency from increasing the numbers of tussocks and tillers in order to expandthe resource range to seize in warm-temperature steppe to steadily improve drymatter production function of the populations and the modules in moderate-temperature steppe.
两个不同热量型研究站点共有种种群与构件两个水平的比较研究表明:随纬度增加和气温降低,种群与构件高度、丛幅、大小、数量、密度和干重等特征指标趋于降低和减少,而种群RGR、ULA、叶绿素含量和植物多叶性与构件DULA、DUMR、DRGR和DRGRa等生长指标则趋于增加,种群与构件的生长动态曲线也从随天然降水而剧烈波动趋向于随气温升高、热量积累和水热配置状况而稳定增长,说明各共有种从暖温型草原区增加植物种群与构件的大小和数量以扩充资源利用范围向中温型草原稳定地提高种群与构件的干物质生产性能的方面转变的趋势;同时,物质与能量的分配也从较多地投资于繁殖器官产生大量后代以适应未来降水的不可预期变化趋向于同化系统的构建和干物质生产效能的提高以抵御低温和干旱对物种生存的威胁,充分显示出不同温度条件及其水热组合对植物种群形态结构和生长繁育模式的显著影响及其响应特征。
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Diamonds began growth when "Jiangnan continent" combined to Yangtze craton, the growth and residence average temperature T〓 was about 1200℃; Diamonds were mutil-stages growth and interruption caused by temperature and pressure varied during Yangtze craton activities; Diamonds were etched when the magma did not erupt on the surface and form failed magma in mantle; during the later growth term T〓<1050℃, the type ⅠaA diamonds formed unclear and growth; Before the host magma erupted T〓<0.5Ma, T〓A<850℃, the type Ⅰb diamond formed unclear and growth; Few diamonds were brittle deformation during growth term, some were plastic deformation after growth; when the host magma erupted on the surface and weathered to alluvial deposit, diamonds surfaces formed green spots caused by irradiation, then most of green spots became to brown spots during a mid-temperature metamorphism; modern river reform it to alluvial deposit in the minute valley again.
在扬子地台&江南古陆&克拉通化时,金刚石开始生长,其生长与保存的平均温度T〓在1200℃左右;期间由于地台的活动,生长的温度压力条件发生了多次变化,使金刚石出现多次生长、停顿;夭折的母岩上侵活动使金刚石受到熔蚀作用;在金刚石形成的晚期,T〓值下降到1050℃以下,出现了另一次金刚石的生长期,在临近金刚石母岩上侵时T〓<0.5Ma,温度进一步降到850℃以下,使Ⅰb型金刚石得以保存;在金刚石形成期间还有过碎性变形发生;金刚石形成后部分样品经过了塑性变形;金刚石在上侵过程中,遭受了强烈的熔蚀;在母岩露出地表,形成沉积砂矿时,受到了放射性物质的辐照,先形成表层的绿色斑点、壳层,后经过中低温的热变质作用,大部分绿色转化为褐色;现代河流作用对沉积砂矿进一步改造,形成现在的细谷型砂矿。
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The results show that the growth rate of tetrapod ZnO is controlled by spiral growth and its crystallization is via VLS model. The condensation of tiny zinc droplets in zinc vapor is the key factor of the formation of tetrapod ZnO. The growth steps are formed on the terminated faces as zinc diffuses outwards and the elongation of whiskers continues until zinc inside the droplets is depleted. VS crystallization, which has little effect on the elongation growth, takes place on side faces of the whiskers and consequently makes the whiskers radius increase.
结果表明: T-ZnO晶须的结晶作用是气-液-固方式,晶须生长受螺旋生长机理控制;锌蒸气中产生凝聚生长的锌液滴是制备T-ZnO晶须的关键,锌从液滴内向外扩散在晶须的端面产生生长台阶,随着液滴内的原子向外不断扩散,针体部分就不断地伸长生长,当液滴内的原子全部消耗尽时,晶须便不再发生轴向生长;气-固方式的作用主要是促进晶须棱面生长而使晶须变粗,对轴向生长几乎没有影响。
- 推荐网络例句
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I will endeavour to find you some assistance.
我尽力帮你找人帮忙。
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At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.
起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像,后来回台湾,甚至去年在北京,居然也四处看见她的海报,才惊讶她的魅力之大。
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Ah may dee:You are chinese living in a democratic country.
你是居住在民主国家的中国人吧。