leaf crown
英 [liːf kraʊn]
美 [liːf kraʊn]
网络 叶冠
双语例句
- Leaf river boat bumps in the torrents of, bow and sit more than a lofty crown beard lay the Dongpo.
江心一叶小船在急流中颠簸着疾驶，船头端坐着峨冠而多髯的东坡居士。 - Stomatal Density of Leaf Layers in Crown of Some Broad-Leaf Species and Effects of Light Conditions on Them
若干阔叶树树冠各层叶气孔密度及光照条件对气孔密度的影响 - In addition, ecotypic differentiations in leaf area, specific leaf area, bark, height under branch and crown width were found between hilltop and foot gulch in the studied species.
另外，在山顶和山脚调查的几个种群在叶面积、比叶面积、树皮、枝下高和冠幅等方面，均出现了生态型的差异。 - The results showed that different ornamental plants had a greater difference in their dust-retention ability, which was mainly related to their leaf surface character, tree crown structure, and branch intensive degree.
结果表明，不同园林植物的滞尘能力有较大差异，这主要与不同植物的叶表面特性、树冠结构、枝叶密集程度等差异有关。 - The main indexes which affected leaf yields were root diameters, long branch number, long branch length, the ratio of seedling height to crown diameter, and the ratios of crown diameter to leaf layer depth.
对当年叶产量影响最大的指标分别为地径、长枝数、长枝长、高幅比及冠长比。 - Secondary forests of deciduous monsoon forest and monsoon evergreen broad leaf forest were recovered from bare land after slash and burn cultivation about 20 years ago and the structure of arbor crown is complete.
而落叶季雨林和季风常绿阔叶林的次生林是大约20年前原始林因刀耕火种被全部砍伐，后来恢复成树冠结构完整的次生林。 - The uneven canopy surface, clumped, regular and/ or random crown distribution, and clustered or random leaf distribution within crown would greatly influence radiation transfer and canopy photosynthetic modelling.
不同的树冠分布方式及在单个树冠内叶片成簇或随机分布，都会对冠层辐射分布和光合作用产生重要影响。 - 36. 9% 36. 4%, and compared with control 2 ( sphagnum peat), the leaf number, crown diameter, height of cyclamen increased respectively 14. 0% 10. 2%;
与对照丹麦泥炭相比，两处理的叶片数量、冠径、株高分别增加增加14.0%和10.2%； - Single N treatment caused biomass increase of stalk and leaf, but decrease of root/ crown value.
试验结果表明：①明显增加了杉木苗的生物量，其中氮磷钾混施效果最好，单施氮肥茎叶生物量增加明显，但根／冠下降； - In the process of the trees 'evaluation, it uses the LAI-2000 apparatus to measure the leaf's area index and at the same time the area of the trees' crown and multiplication of the both can be look as the vegetation quantity of trees.
在树种评价的过程中采用LAI-2000型树冠仪测定树种的叶面积指数，同时测量树木树冠面积，二者乘积可近似看作树种绿量值。 - Furthermore, photosynthetic rate of outside and mid leaf crown on high yield trees was significantly higher than that on low and off year fluctuating yield trees whether it was measured after spring leaves matured, before harvest or after harvest.
丰产稳产树外、中层叶片光合速率，在春叶老熟后及采果前、采果后3个时期均显著地高于低产树及小年期的变产树。 - A Histopathological Study on Non-host and Cultivar Resistance of Wheat, Rye and Oat to Leaf and Crown Rusts
三种麦类作物对叶（冠）锈菌非寄主抗病性与品种抗病性的组织病理学研究 - Mulching tended to optimize the indices of leaf number, leaf quality, leaf size, shoot number and quality, crown diameter and leaf area index.
对叶片数量、质量、叶片大小以及枝条抽生数量、质量和树冠大小、叶面积系数等指标均有良好的优化作用。 - The morphological effects of acid rain on the leaf area, the weight per leaf, and the root/ crown of plants were studied by using different pH solutions to simulate acid rain and treating 6 species of common green plants in the southern cities.
以不同pH值的溶液模拟酸雨对6种南方城市常用的绿化植物进行处理，来研究酸雨对植物叶面积、单叶质量、根冠比等形态学效应的影响。 - A Leaf Disc Transformation System to Test the Sensitivity of Peach to Crown Gall Disease
鉴定桃砧木对根癌病敏感性的叶圆片转化系统的建立 - The graph includes leaf, crown, stem, branch and root composed of 22 variables.
图谱包括根、茎、叶、冠和枝条等22个变量构成。 - ( 7) The intensity and type of disturbance caused the change of resource availability, which affected the leaf trait and crown architecture.
干扰强度和方式的不同导致资源可利用率的变化，从而对植物叶性状和构型产生影响。 - The correspondence of leaf trait, crown architecture and restoration type explained effectively the mechanism of restoration.
植物叶性状和构型与干扰样地恢复格局相对应，有效的解释了植被恢复机制。 - There was little difference in plant height, leaf area, and crown width in its growing time, and drill is good for the mode of great area planting with machines. 3.
生长期内苗高、冠幅、叶面积变化互相比较差异不大。条播方式利于大面积机械化种植。 - The pruning improved net photosynthesis of the single leaf on the middle and top layer of crown in some degree, and with the increased pruning intensity, the net photosynthetic rate also increased.
修枝一定程度上提高了树冠中上部单叶的净光合速率，而且随着修枝强度的增大，净光合速率也有所增加。 - Mean leaf angle and light environment coefficient, radiation under crown is positive correlation. canopy opening and light environment coefficient It indicates that the change of canopy width and leaf area index has an significant influence on other canopy characteristic parameters and light distribution in the forest.
这说明冠层开度与叶面积指数的变化对其他冠层特性指标的变化有着重要影响，并决定林内光分布情况。 - Growth indicators: such as plant height, diameter at breast height, leaf area, the weight of the unit of leaf area, branch length, crown also significantly improved.
生长指标方面：如株高、胸径周长、叶片面积、单位叶面积重量、分枝长、冠幅也有明显的提高。