查询词典 slash

A provenance trial has been carried out in eleven replications in southeastern China on slash pine of fifteen seed sources from Alabama, Florida, Georgia, Louisiana, Mississippi and South Carolina of the United States of America.

湿地松是一个有发展前途的速生树种。1982年我们利用从美国国际林木种子公司进口的批量生产的种子进行种源试验。该批种子来自美国6个州的15个产地。通过多地点试验，以了解这批种源的遗传品质，比较不同种源的生长表现与适应能力。

The root number of the slash pine plantation is negative correlative to density of stand; the 4.0 cm diameter roots number is correlative to gross root number, it can be regard as one of trees nutrition standards.

湿地松人工林的根系发达程度与林分密度负相关；4.0cm径级根系数量与根系发达程度正相关，可以作为林分营养水平标准。

The hybrid breeding between Slash pine and Caribbean pine in Guangdong Forestry Research Institute began from 1990s.

广东省林业科学研究院系统开展湿地松与加勒比松P。

Afforestation tree species in south China,including Chinese Fir,Slash Pine and Timor Mahogany were studied in acid soil.

中国林业科学研究院林业研究所国家林业局林木培育重点实验室北京 100091

Based on the test of 23-year and 10-year old slash pine,this papersystematically studied the effect of different thinning intensity and different densityof plantation on the wood qualities and properties.Many statistical means such asanalysis of variance and cluster analysis were used to analyze the difference of thewood qualities and properties among the different silvicultural measures.

本文分别以23年生、10年生的湿地松为实验材料，全面地研究了不同间伐强度、不同种植树密度对人工林湿地松材质材性的影响规律，并利用方差分析、聚类分析等统计手段，定量地分析了不同栽培措施之间材质、材性的差异。

The nonlinear regression function of mathematic tool software SPSS was used to build models about DBH, high of tree, volume of single timber and stand volume slash pine plantation, and these models are have a certain extant applicability.

利用SPSS的曲线估计和非线性回归功能，获得了具有一定适应性的湿地松人工林胸径生长模型、树高生长模型、单株材积模型、林分蓄积量模型。

In comparison with slash pine, which was introduced earlier from abroad, and the native mason pine, the five-year-old loblolly pine families, which was introduced into Fujian Province, were evaluated.

火炬松原产美国东南部，是美国南方松类中极重要的速生建筑和纸浆用材树种，因其具备早期速生、适应性强等优良性状而被许多国家和地区广泛引种，作为工业原料林和用材林树种[1，2]。

The results were as follows: After the slash pine stands cover-overheaded, the average DBH and crown diameter are very negative correlative to stand density, the average high of branch and high of tree are a certain extent correlative to stand density; high stand density can be a certain extent accelerate high growth, but the effect is limited.

结果表明：湿地松人工林林分郁闭后，林木平均胸径、平均冠幅与密度呈极显著负相关；林分平均枝下高、平均树高与密度有一定程度的相关性，高密度一定程度上可以促进林木的高生长。

The contents,accumulation and distribution as well as biological cycles of 9 nutrient elements were studied in four 16-year-old experimental Slash Pine plantations with different density at Lufeng Mountain Forestry Farm in Guangxi Autonomous Region.

在广西禄峰山林场16年生4种不同造林密度的湿地松试验林地内，对N、P、K、Ca、Mg、 Cu、Fe、Zn、Mn 9种养分元素的含量、积累、分配和生物循环以及它们与密度间的关系进行了研究。

E ., carrgeenin gum 7 g/L, Ph 5.8-6.0 and light intensities 2000-3000 lx, were proper to the proliferation and development of axillary buds. The brown could he restrained effectively when the Vc(0.05 g/L.) was supplemented in the proliferation medium. The GA3 was not suitable for the proliferation of axillary buds of slash pine.

当卡拉胶为7 g/L、pH为5.8~6.0、光照度为2000~3000 lx时有利于湿地松丛生芽的增殖和生长；培养基中添加抗坏血酸0.05 g/L能有效抑制湿地松丛生芽增殖过程中褐化物质的产生，而赤霉素的添加则不利于湿地松丛生芽的增殖和生长。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。