- 更多网络例句与相对生长相关的网络例句 [注:此内容来源于网络,仅供参考]
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Allometry is used to study and measure the relative growth of one part of an organism, in comparison with the other parts of the organism.
植物个体的异速生长是指生物体某一特征的相对生长速率不等于第二种特征的相对生长速率的特性,该特性是由物种的遗传性决定的一种固定特征,植物往往朝着最佳的异速生长曲线进化。
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To improve the precision of tree biomass parameter calculation, this paper explicates the principle, method and process to estimate the parameters of tree biomass by the nonlinear least square according to the formula of allometry method. It gives the formula to calculate the variance and covariance estimated parameters, and reveals the essence of logarithmic linearization regression of power function.
为了提高林木生物量参数的计算精度,根据林木相对生长公式,阐述用非线性最小二乘法求解生物量参数估值的原理、方法和过程;给出计算参数估值之方差与协方差的公式;揭示幂函数对数线性化回归的本质。
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The maximum growth rate is 0 22 cm d , and appears in ramification period Its community structure is reasonable rhomboid structure The leaf stem ratio will increase with increasing the height of plant .
出现在分枝期末期;绝对生长速率和相对生长速率在整个生育期内呈单峰曲线,最大值出现在分枝前期;其群落结构为菱形结构,是一个合理的株型结构;叶茎比随离地高度的增加而增加,符合指数增长方程。
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The opposite growth of a stalactite with a stalagmite and finally connect together is called a rock pillar.
石钟乳和石笋相对生长最后连接在一起称石柱,如洞中的"玉柱"、"藕断丝连"就是石柱。
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After 60 days of growth (under both shaded and unshaded conditions), seedlings from larger seeds had proportionally larger root mass and proportionally smaller leaf mass than did seedlings from small seeds.
在自然光照下,小种子幼苗的相对生长速率较大于大种子幼苗,但叶面积比率、叶面积干质量比、叶干质量差别不明显。
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Truncatum% youngling increased with increasing water supply at the early growth stage and fast growing stage .
在单一阶段土壤相对含水率不超过87.84%时,幼树SOD酶活性随生长前期和生长后期随供水量的增大而增大;在单一阶段土壤相对含水率超过87.84%时,幼树叶片中SOD活性在中前期—生长前期和生长盛期随供水量的增加而增大。
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Research on individual bamboo biomass and timber physical structure indicated that the allocation of Guadua amplexifolia biomass to branch is higher than moso-bamboo evidently. Root shoot ratio is larger than other sympodial bamboo, so it can be considered as a good breakwind plant because of developed root and branch. Every modularity biomass above ground had significant positive correlation with basal diameter and total height, it can simulated with allometric model. The culm had large relative wall thickness and low moisture content, so it can be cultivated as fine timber-used bamboo.
通过对Guadua amplexifolia现存单株生物量结构和竹材物理结构研究,结果表明:地上部分生物量在枝条上的分配比例高于相同径级毛竹,根冠比较其他丛生竹种大,具有发达的地下根系且易形成密集林分,是良好的防风植物材料;地上部分各器官生物量与地径、全高均呈显著的正相关,可以用相对生长模型进行模拟;竹秆有较大的相对壁厚和较低的含水率,可以作为良好的材用竹种进行培育。
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Pure-remote sensing information models are free of the numerous distributional parameters that are difficult to obtain in vast area. The following sections are included in the study.(1) The VCI and SVI based on time-series NDVI data are used to analyse regional drought and the following results were reached: As the vegetation growth status index, the response of VCI and SVI to precipitation was land cover type, temporal and site specified. So VCI and SVI have little information about drought when used to monitor regional drought especially in China that has a mountainous topographty.(2) Based on the interpretation of NDVI-Ts space, NDVI and land surface temperature was combined to construct NVDI-Ts space from which the TVDI (Temperature Vegetation Dryness Index) was obtained with line ratio method and normalized slopes method. When compared with the topsoil moisture measured in situ, TVDI are competent in regional drought monitoring. Illumed by the NDVI-Ts space, we combined the NDVI with day/night land surface temperature difference and apparent thermal inertia to construct NDVI-ΔT and NDVI-ATI spaces from which the DVDI and AVDI were estimated respectively with 8-day composite MODIS 〓 product and 16-day composite MODIS NDVI product.
具体包括以下几方面的内容:(1)VCI和SVI在干旱监测中的作用评价:探讨利用NDVI时间系列数据建立的植被状态指数和标准植被指数评价区域干旱的可行性,研究结果表明:VCI和SVI作为植被相对生长状况指标,对降水的响应随着植被覆盖类型、时间和空间等而表现出不同的敏感性,因此在大区域干旱监测中,特别是我国这样地形复杂多样的国家,VCI和SVI在干旱监测中的作用都是有限的;(2)利用TVDI评价全国干旱等级分布:结合陆地表面温度和植被指数建立NDVI-T〓空间,在NDVI-T〓空间物理意义理解的基础上,分别采用线段比值法和斜率归一化法构建温度植被干旱指数,并利用TVDI研究了我国2000年3~5月份各旬的干旱分布,取得比较满意的结果。
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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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Furthermore,EAN and single NO3- nutrition significantlyincreased relative growth rate from five-leaf stage to seven-leaf stage compared withNH4+ alone.
此外,增铵营养和单一NO3-营养下五叶至七叶相对生长速率显著高于单一NH4+营养。
- 更多网络解释与相对生长相关的网络解释 [注:此内容来源于网络,仅供参考]
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allometry:相对生长
allometaboly 异变态 | allometry 相对生长 | allomone 异种信息素
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Melia azedarach:苦楝
五角枫(Acer mono),君迁子(Diospyros lotus),苦楝(Melia azedarach)5个树种的1年生幼苗的超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、过氧化物酶(POD)3种保护酶活性、丙二醛(MOA)含量、叶片相对电导率和树高相对生长速率等生理指标的测定,
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growth curve:生长曲线
这生长曲线(growth curve)代表单细胞微生物从生长开始到衰老死亡的一般规律. 在分批培养的指数前期,培养条件或许可以维持相对稳定,但在后期,当细胞数目变得非常大的时候,培养基的化学组成一般会发生巨大的变化. 对许多研究来说,
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neoplasia:肿瘤形成
其形成过程,被称为肿瘤形成(neoplasia). 肿瘤细胞具有异常功能、代谢和结构,以及与机体不相协调的过度生长能力和分化不完全等特点. 肿瘤分为良性与恶性两大类. 良性肿瘤生长较慢,具有一定自限性,与周围组织分界明显,危害相对较小;
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reinvigoration:更新
regulator 调节器 | reinvigoration 更新 | relative growth rate 相对生长速率
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senescence phase:衰减期
根据S形曲线的变化情况,大致可将植物生长分成三个时期,即指数期(logarithmic phase)、线性期(linear phase)和衰减期(senescence phase). 在指数期绝对生长速率是不断提高的,而相对生长速率则大体保持不变;在线性期绝对生长速率为最大,
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somatoplasm:体质[与种质相对]
somatomedin 生长调节素,生长素介质[例如生长调节素C] | somatoplasm 体质[与种质相对] | somatostatin 促生长素抑制素,抑生长素
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世代交替 alloiogenesis 世代交替:alloiobiogenesis
alloiobiogenesis 世代交替 alloiogenesis 世代交替 | allometry 相对生长 | allopatry 异域性
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Diospyros lotus:君迁子
五角枫(Acer mono),君迁子(Diospyros lotus),苦楝(Melia azedarach)5个树种的1年生幼苗的超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、过氧化物酶(POD)3种保护酶活性、丙二醛(MOA)含量、叶片相对电导率和树高相对生长速率等生理指标的测定,
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Phalaris arundinacea:虉草
在虉草(Phalaris arundinacea)整个生长季中,定期测量其株长、鞘高、叶龄及生物量等生长指标,分析和研究虉草的季节生长动态.结果显示:虉草各指标的季节生长动态基本一致,皆呈"S"型曲线,且均以三次方程拟合效果最佳.绝对生长速率和相对生长速率基本同步,