查询词典 canopy

The canopy structure and leaf morphological characters of 4 sugarcane genotypes at different leaf layers on seedling were studied by using CI-100 plant canopy instrument and CI-203 area meter instrument. The results showed the leaf morphological parameters, canopy structure and radiation transmission at different leaf layers were notably different among different genotypes. The variation of Ila, Amfi, Dl at different leaf layers were mainly caused by the leaf width at relevant position. The variation of K at different leaf layers was related to Amfi and Dl. The variation of Td（transm. coef. for diffuse penetration）had significant correlations with Ila, Amfi and Dl. The variation of Tr（transm. coef. for radiation penetration）had significant correlations with Dl, leaf width and the ratio of leaf length to width. The variation of Par had significant correlations with Ila, leaf area, leaf width and the ratio of leaf length to width.

摘要利用CI-100数字植物冠层分析仪和CI-203叶面积分析仪测定了4个甘蔗品种不同叶位层的冠层参数和相应叶位叶片的形态特征，结果表明：不同基因型不同叶位层间叶片形态、冠层空间结构和冠层辐射特征存在显著差异，不同叶位层叶面积指数、叶簇倾角和叶分布的变化主要由冠层内不同叶位叶片叶宽的变化引起，而不同叶位层消光系数的变化主要与叶簇倾角和叶分布有关；散射光透过系数的变化主要与叶面积指数、叶簇倾角和叶分布有关，直射光透过系数的变化主要与叶分布、叶宽、长宽比有关，光合有效辐射的变化与叶面积指数、叶面积、叶宽、长宽比有关。

There were no significant differences between the pine forest and the oak forests in terms of leaf area index, canopy coverage, and light intensities above and beneath canopy. The canopy uniformity of the pine forest was significantly lower than that of the oak forest.

l油松林与辽东栎林的叶面积指数、林冠覆盖度、辐射因子和林下光资源没有显著差异，但油松林林冠均匀性显著小於辽东栎林。

The simulations of two models are close to canopy albedo observation in this band. This indicates that the two-stream model can simulate the canopy albedo very well and the improvement of four-stream model is limited. The results also show that the albedo of the canopy modeled by the four-stream model is greatly improved than that of the two-stream model in the NIR band.

这表明在可见光波段，二流模式已经能够较好模拟冠层反照率，四流模式能够提高的精度范围有限；在近红外波段，因叶片散射率值较大，两个模式模拟结果差别较明显，四流模式模拟的冠层反照率相对二流模式的模拟结果更接近观测值。

The sequence of fungi species on needles in different crown canopies from high to low is higher canopy, lower canopy and middle canopy.

兼性寄生性真菌在老龄针叶上的种类和数量均多于小龄针叶，并为老龄针叶的习居菌，而且随冠层的降低还有增加。

According to the datas from field investigation, lab experiment and slope run-off plot observation, the hydrologic functions of forest canopy, lower shrub, litters and soil layers have been studied. The canopy precipitation interception characteristic of different vegetation types have been analized. The results indicate that the broad-leaf forests and coniferous and broad-leaf mixed forests are better than phyllostachys pubescens forests and shrubs in canopy rainfall interception. And the litters water-holding ability of broad-leaf forests and mixed forests are higher than others. And the soil water-holding and infiltrating ablility of broad-leaf is good.

根据野外调查、试验及坡面径流小区的观测数据，研究了库区主要类型植被林冠层、灌草层、枯落物层和土壤层的水文功能，分析了不同降雨条件下不同类型植被的林冠截留特征，指出在林冠截留方面阔叶林、针阔混交林比楠竹林、灌丛的截留能力强；分析了库区主要类型林地枯落物层的水文功能，研究结果表明：阔叶林林地枯落物的持水能力普遍高于针叶林，而混交林枯落物的持水能力要比纯林大；林地土壤层的水文功能剖析表明：阔叶林林地土壤的持水性能较强，其林地土壤的入渗性能较好。

It was shown that the good relationship exists between canopy temperature and cell sap concentration,the established relation among canopy minus air temperature diffrential,meteorological factor and soil water content can be used to detect crop water stress.

研究表明了冠层温度与细胞液浓度之间存在良好关系，建立的冠层温度与气温差同气象因素和土壤水分的关系可用于判断作物的缺水状况

It is also pointed out that clear-cutting over 1 hectare , taking soil or digging turves under canopy should be forbidden . Regeneration under canopy is very necessary in order to ensure the ecosystem stability of larch forests in valley .

并指出，绝对禁止面积超过1hm^2的皆伐，林下取土或挖掘泥炭等严重影响谷地落叶松林生态系统的行为，为确保谷地落叶松生态系统的稳定性，进行林下的更新是非常必要的。

The invention relates to a canopy installation structure provided with strength of a ROPS in a working vehicle, and more particularly to a canopy installation structure which does not increase a counter weight even in a compact working vehicle having a comparatively light vehicle weight.

本发明涉及一在工作车辆中设置有ROPS强度的遮蓬安装结构，具体来说涉及这样一遮蓬安装结构，其即使在一具有相对重量轻的紧凑工作车辆中也不增加配重。

Now the studies about broad-leaved evergreen plants mainly focus on some singular elements experimentized in laboratories. The paper studies the effect of cultivation methods such as plastic canopy, shade canopy, coving ground with pine bark on cultivation environment in two year.

目前对常绿阔叶植物的研究主要集中在单因子和实验室内的研究，而本文通过2年的观察和实验，研究塑料棚、荫棚、地面覆盖等保护地栽培措施对栽培环境的影响，而环境的变化进一步影响常绿阔叶植物在冬季的越冬表现。

In this study, cultivation methods and treatments such as plastic canopy, shade canopy, coving ground, anti-transpirant-pretreated, pachobutrazol-pretreated, burying for overwintering is used on the several broad-leaved evergreen plants in Beijing including glossy privet, Japanese privet, Japanese holly "Convexa", evergreen euonymus "Cu zhi", wintercreeper euonymus, English ivy, leatherleaf viburnum, littleleaf box "Wintergreen", and star Jasmine.

在研究中，采用塑料棚、荫棚、地面覆盖、喷施抗蒸腾剂、多效唑、埋土越冬等措施和处理对北京地区几种常绿阔叶植物——女贞、日本女贞Ligustrum japonicum、皱叶荚蓬、龟甲冬青(Ilex crenata'Convexa)、'粗枝'大叶黄杨(Euonymus japonicus 'Cu zhi')，'冬绿'小叶黄杨(Buxus microphylla'Winter-green')，络石、洋常春藤、扶芳藤进行了实验。

I had a lovely dog named PiPi, he was one of my best friends.

我曾经有过一只小狗，它的名字叫皮皮，它很善良，它是我最忠实的朋友。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。