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1)  young tree
幼树
1.
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。
2.
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。
2)  sapling [英]['sæplɪŋ]  [美]['sæplɪŋ]
幼树
1.
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
2.
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
3.
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。
3)  Saplings [英]['sæpliŋ]  [美]['sæplɪŋ]
幼树
1.
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
2.
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。
3.
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。
4)  Young trees
幼树
1.
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。
2.
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。
5)  young plant
幼树
1.
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
2.
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。
6)  seedling and sapling
幼苗幼树
1.
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。
补充资料:幼小树苗如何施肥
    在苗木生长初期,充足的养分对其生长是极为有利的。苗圃中幼苗所需要的养分和施肥量可以预先估算出来,这些肥料可以保证苗木幼小时的迅速生长。在定植后的前两年,幼苗养分的供应情况一般是这样的:
    针叶树(80万棵苗/公顷)需要120公斤氮、15公斤磷、50公斤钾、60公斤钙、20公斤镁。
    落叶树(100至200万棵苗/公顷)需要150公斤氮、25公斤磷、90公斤钾、150公斤钙、25公斤镁。
    不同树种对养分的需求量是不同的,应区别对待。通常分为以下三类:①绝大多数一年生幼苗需肥量较少。②一年生松树实生苗、需养分较多的阔叶树和多年生的针叶树需肥量一般。③多年生的落叶树需肥量较多。
    在土壤养分含量一般的地区,需肥量一般的苗木每公顷至少应施用大约50公斤的氮、40公斤磷和50公斤钾。如果当地的土壤养份含量严重不足,那么上述施肥量则应加倍。
    另一个重要环节是对土壤反应的正确调整。很多树木比较喜欢酸性土壤,沙性土壤的pH值一般在5左右,壤土的pH值在5.5左右。对于喜钙树种来说,酸碱度的指标应该是中性的。(来源:《中国花卉报》2004.03.16)
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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