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   混交树种 的翻译结果: 查询用时:1.075秒
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混交树种     
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  associated tree species
     Chinese Fir Autointoxication and Interspecific Allelopathy between Chinese Fir and Its Associated Tree Species
     杉木自毒作用及其与主要混交树种化感作用的研究
短句来源
     Eco-countermeasure of Chinese fir and Its Main Associated Tree Species
     杉木及其主要混交树种生态对策
短句来源
  mixed species
     The Correlation between Vertical Distribution and Vertical Thermal Indexes of Chinese fir and its Mixed Species in Fujian
     杉木及其混交树种的垂直分布与垂直热量关系
短句来源
     The Study on the Interspecific Competition between Chinese Fir and its Main Mixed Species in Chinese Fir and Broad-leaf Mixed Forest
     杉阔混交林杉木与其混交树种种间竞争研究
短句来源
     Interspecific competition between Chinese Fir and its 12 main mixed species in different resource space(physical and chemical nutrient of soil)was studied.
     分析了杉阔混交林中杉木与 1 2个主要混交树种分别在不同资源空间 (土壤物理与化学营养 )中的种间竞争情况。
短句来源
     The results showed that the stage of interspecific competition between Chinese Fir and its mixed species was different according to different species in the same resource space.
     结果表明 :在同一资源空间中 ,杉木与混交树种的竞争结局依树种不同而异。
短句来源
     By discussion on ecological characteristics of larch and China ash and the conditions as well as the basis of selecting mixed species, the results show that the management of mixed larch and China ash forest is feasible.
     通过对落叶松与水曲柳生物生态学特性 ,以及选择混交树种的条件和依据的论述 ,说明了营造落叶松与水曲柳混交林的可行性
短句来源
  its mixed species
     The results showed that the stage of interspecific competition between Chinese Fir and its mixed species was different according to different species in the same resource space.
     结果表明 :在同一资源空间中 ,杉木与混交树种的竞争结局依树种不同而异。
短句来源
  “混交树种”译为未确定词的双语例句
     The average D of Cunninghamia lanceolata is 0.94,2.81,1.77,1.06,andl. 47 timeslarger than that of Sassafras tsumu, Phobe burnei. Fokienia hodginsii,Cinnamomum camphora,Tsoongiodendron odorum and Alniphyllum fortunei,respectivity.
     对福建省建瓯市几种杉木人工混交林乔木层结构及动态进行了研究,结果表明:杉木的胸径D分别是混交树种檫木的0.94倍、楠木的2.81倍、建柏的1.28倍、樟树的1.77倍、观光木的1.06倍、拟赤杨的1.47倍。
短句来源
     Therefore, the above -mentioned 7 species can be used as mixed components of China fir afforestation.
     这7个树种均可作为杉木混交造林的混交树种
短句来源
     Feasible Species Choice and Collocation on Mixed Forest In Fujian Coastal Mountain Areas
     福建沿海山地适宜混交树种的选择与搭配
短句来源
     In different resource space, the stage of interspecific competition between Chinese Fir and a certain species was different.
     杉木与同一混交树种在不同资源空间中具有不同的竞争结局。
短句来源
     The best mixed seed of Phellodendron amurense Rupr.is larch, its mixed mode is inter row, its forestation density is 5 000 plants per hectare. The suitable shade density is 0.5. The best season of stump is autumn, its germinal is 63 percent, the stump position is the lower position of rhizosphere, and the best age is 3~5 years.
     黄菠椤最佳混交树种为落叶松 ,混交方式为行间混交 ,造林密度为 5 0 0 0株 /hm2 .适宜的郁闭度为 0 .5 .平茬最佳季节为冬季 ,其萌发率为 63% ,平茬部位是根际下部 ,最佳年龄为 3~ 5年 .
短句来源
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  associated tree species
Juniperus virginiana plants grow faster than other associated tree species in abandoned fields.
      
Sequoia bark itself is relatively poor as a substrate for epiphytes, but associated tree species are often heavily clothed with lichens.
      
Understory vegetation is just as susceptible to physical limiting factors as the associated tree species.
      
  mixed species
It was suggested that two types of mixed species containing diheptyl dithiophosphate ions, Mn(II), and nonionic surfactant can be formed: micellar aggregates, {Mn(L7)2(TX)}, and polynuclear associates, [Mnx?(L7)y(tx)z].
      
They are characterized by the mixed species composition, when species with different ecological preference occur within the same habitat.
      
Spot tail shiners and juvenile perch commonly form mixed species shoals and are vulnerable to the same suite of predators.
      
Despite these advances, very little is known about the subtle mechanisms that keep mixed species groups together on a daily basis.
      
Root distribution pattern and competitiveness of bamboo (Bambusa arundinacea (Retz.) Willd.) for below ground resources in mixed species systems were evaluated using logarithmic spiral trenching and 32P soil injection techniques respectively.
      
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A study on the Zeuzera multistrigata Moore was made in Fujian Province from 1982 to 1987. This kind of moth borer damages tree trunk. It is one of primary pests in the Casuarina equisetifolia Linn, in the shelterbelt along the coast of Fujian. The pest has one generation a year. It overwinters within the galleries in the larvae form. The adult emerges from the mid-May to early September the next year and lays eggs in beneath the bark. New hatched larvaes are thrown about by wind and bore holes at the edge of...

A study on the Zeuzera multistrigata Moore was made in Fujian Province from 1982 to 1987. This kind of moth borer damages tree trunk. It is one of primary pests in the Casuarina equisetifolia Linn, in the shelterbelt along the coast of Fujian. The pest has one generation a year. It overwinters within the galleries in the larvae form. The adult emerges from the mid-May to early September the next year and lays eggs in beneath the bark. New hatched larvaes are thrown about by wind and bore holes at the edge of buds. The male mothes can be attracted by light; the female mothes have sex pheromones.If the crown density is over 0.7 or the age of the stand is over 10 years, the trees could be hardly damaged. The mixed forest is damaged less than pure forest.Natural enemies of the borer amount to more than eight species.If we spurt Beauveria bassiana (5× 108-108/ml) into the burrows on the trunk, more than 86.7% of the old larvaes of Z. multitrigzta can be killed. In the early boring stages, to spray the edge of buds with 2.5% of Decamethrin in a concentrations of 1:3000 or 40% Omethoale in 1:300 is effective in killing the new larvaes.

多纹豹蠹蛾在福建省一年一代,以幼虫在树干基部蛀道中越冬,幼虫19龄,历期313—321d,每树大多仅有一条幼虫和一个排粪孔;6月中旬为羽化高峰期,成虫具趋光性;7月上、中旬为孵化盛期。受害植物已知 20种,以木麻黄为主,被害株率最高达82%。可选用湿地松、柠檬桉为木麻黄的混交树种;杜绝带虫苗木造林;幼虫蛀入期对排粪孔喷注白僵菌,害虫死亡率86.7—98.3%,幼虫未蛀入时对嫩枝小喷溴菊酯或氧化乐果液剂,均可收到良好的防治效果。

Different benefits bearing six species mixed with china-fir seperately were evaluated using quantitative and mathematical statistic mothod for the mixed experiment of Fir-Hardwood plantation. Scientific basis is presented for determining mixed species and its patterns most appropriate to china-fir.

本文通过人工杉阔混交试验,应用数量化取值和数理统计的方法,分析了六个树种和杉木混交后产生的不同效益,为确定最适宜和杉木混交的树种及其理想的混交方式提供了依据。

The following conclusions are reached through researches on soil nutrients releasing,nutrients absorbing by trees and the growing seasonality of trees in the artificial mixed Juglans mandshurica and Larix olgensis forest during growing seaon in a year. The fast height growing period of J. mandshurica started earlier but maintained short, and the fast height growth period of L. olgensis started later but maintained longer. The nutrient absorbing ability of J. mandshurica root is strong and the nutrient contents...

The following conclusions are reached through researches on soil nutrients releasing,nutrients absorbing by trees and the growing seasonality of trees in the artificial mixed Juglans mandshurica and Larix olgensis forest during growing seaon in a year. The fast height growing period of J. mandshurica started earlier but maintained short, and the fast height growth period of L. olgensis started later but maintained longer. The nutrient absorbing ability of J. mandshurica root is strong and the nutrient contents in leaves are high in early spring, but the nutrients absorbing of L. olgensis and supplying of soil are comparatively uniform in the whole growth season.The full N and full P contents in leaves of J. mandshurica from the mixed forest are higher than that from the pure forest.

本文通过胡桃楸(Juglans mandshurica)落叶松(Larix olgensis)人工混交林在年生长季节内土壤养分释放、树木吸收和混交树种生长节律的研究,得出如下结论:胡桃楸高生长速生期来的早,持续时间短;落叶松高生长速生期来的晚,持续时间长。胡桃楸早春根系吸收能力强,使叶片中无机元素含量水平高;落叶松在整个生长季节内,无机元素吸收和供应比较均衡。在年生长季节内,混交胡桃楸叶内全N、全P含量水平高于纯林胡桃楸。

 
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