Young trees是什么意思

网络释义

用法例句

Based on the observation on young tree growth of Davidia involucrata Baill and planting experiment,plantation techniques were summarized.

根据观察研究结果描述了珙桐幼树的生长特性,结合试验结果总结了珙桐的山地造林技术。

The young trees in the new afforestation land were inter-cropped with peanut and sweet potato to investigate the effects on the growth of young trees.

退耕还林幼林地间作花生、红薯和无间作对幼树的生长发育的影响研究表明,间作花生能较好地促进幼树的生长,对树茎、分枝数和树高的有利影响极为明显,经济效益十分显著。

A Preliminary Studies on the Leaf Layer Structures of Four Broad- Leaved Sapling’s Canopies in Natural Secondary Forest Community;

天然次生林群落中四种阔叶幼树树冠叶层结构的初步研究

Effects of different environment of Karst forest on the biomass of Betula luminifera saplings

喀斯特森林林分环境对光皮桦幼树生物量的影响

The effects of three fire treatments of T1 (leaf burn),T2 (branch burn) and T3 (stem burn) on net photosynthetic rate,transpiration rate,water use efficiency and chlorophyll fluorescence parameters for young leaves of Fraxinus mandshurica,Juglans mandshurica and Quercus mongolica saplings were studied in this research.

以水曲柳、核桃楸和蒙古栎3种幼树为研究对象,研究3种火烧处理对幼树新生叶的净光合速率、蒸腾速率、水分利用效率和荧光参数的影响。

Determination and Analysis of Photosynthetic Characteristics of Grafted Saplings of Magnolia grandiflora;

广玉兰嫁接幼树光合性能的测定与分析

densiflora saplings in the canopy gap were fewer than that.

以延边地区天然赤松林内更新幼树为对象 ,分析幼树的分枝数、分枝概率分布和分枝角的变化动态 ,探讨了赤松幼树的分枝特性及其与微生境的关系。

We researched the basal character of tree crown for broadleaves-Korean pine mixed forest,the sapling distribution under tree crown;We analyzed the spatial patterns of crowns for major species and saplings in understory,also the spatial association between crowns and saplings to interpret the spatial pattern of populations in in broadleaves-Korean pine mixed forest.

本文以小兴安岭典型阔叶红松林大面积固定样地(9hm~2)为对象,调查所有DBH≥2cm个体的树高,并对高度＞10m的个体进行冠幅调查,绘制树冠图,得到主要组成树种的树冠斑块图以及每个斑块下幼树的分布情况。

Photosynthetic characteristics of young trees leaves of Black berry were studied with a CO_2 infrared analyzer.

采用红外线CO2 气体分析仪对美国黑莓幼树光合特性进行研究 ,结果表明 :黑莓叶片光合速率日变化呈双峰曲线 ,最高峰在 9:0 0 ,次高峰在 13:0 0 ,存在“午休”现象。

Analyse the influnce of shade on young trees growth are very important to the current status of forestation of Guangdong.

光照是影响林木生长的重要因素 ,为分析庇荫对幼树生长的影响 ,选择 6个常用的阔叶树种在不同郁闭度条件下进行造林实验。

Physiological responses of photo synthesis indicators of young plants of Fraxinus mandshurica in different light conditions;

不同光环境下水曲柳幼树光合指标的生理反应

Difference of Diospyros kaki drought-resistant capecity were reported, and measureslike inter - planting and covering for young Plant were discribed.

报道了不同品种柿树幼树抗旱能力的差异，并提出套种和地面覆盖是幼树抗旱的有效措施。

In order to clear the relationships between photosynthesis and leaf N,leaf P,SLA of tropical trees and test the differences of relationships among life-form groups(tree,shrub-like tree and shrub),seedling and saplings of 101 species in tropical montane rain forest located in Diaoluo Mountain of Hainan Island were selected.

以海南岛吊罗山热带山地雨林101个物种的幼苗幼树为试验材料,测定其光合、叶片氮、磷含量及比叶面积;检验其相关关系,并按乔木,乔灌木(小乔木至大灌木)和灌木3个生活型组进行分组检验。

Responses and Adaptations of Tilia Amurensis Seedlings and Saplings to Light Rgimes

紫椴幼苗、幼树对光的响应与适应研究

The dead elms have been replaced by a row of saplings.

死去的榆树已被一排幼树取代。

The dead elm have be replace by a row of sapling

死去的榆树已被一排幼树取代

The old apple tree must be grubbed up and young one planted

老苹果树必须挖掉,种上幼树

The old apple trees must be grubbed up and young ones planted.

老苹果树必须挖掉,种上幼树。

Response of structural plasticity of Tilia amurensis sapling crowns to different light conditions.

不同光环境下紫椴幼树树冠结构的可塑性响应

Australian palm with leaf buds that are edible when young.

澳洲蒲葵属植物，幼树的叶芽可食。

It is essential that the young trees be visited once a year for the first six or eight years.

幼树在最初的6―8年应每年检查一次。

large sapling

大幼树(高10英尺以上, 胸径4英寸以下)

Effect of Spraying Leaves with PP333 on Cold Resistance in Sapling of Cinnamomuim camphora

叶面喷施PP333对香樟幼树抗寒性的影响

The Spreading Branch Technique for Early Fruit-bearing of Apple Saplings of Mato 1

藤牧一号苹果幼树早果丰产拉枝技术

Low-growing plants, saplings, and shrubs beneath trees in a forest.

矮树丛树林中长在树下的矮小植物，幼苗和灌木

small moth whose larvae live in apples and English walnuts.

其幼虫生活在苹果树和英国胡桃树上的小蛾子。

Effect of Environmental Factors on the Growth and Camptothecin Concentration of Camptotheca Acuminata Seedlings;

环境因子对喜树幼苗生长和喜树碱含量的影响

Effect of Exogenous Salicylic Acid on the Content of Camptothecin in Camptotheca Acuminata Seedlings.;

外源水杨酸对喜树幼苗中喜树碱含量的影响

Variation of Camptothecin Content in Roots During the Growth of Camptotheca acuminata Seedlings

喜树幼苗根生长过程中喜树碱的含量变化

tender blossoms,plants,shoots,etc,eg that can be harmed by frost

娇嫩的花、树木、幼芽等（如易遭霜冻）.

moth whose larvae form nests by rolling and tying leaves with spun silk.

幼虫用卷起的树叶和丝来筑巢的蛾子。