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subtropical forest     
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  亚热带森林
     Studies on ~(14)C Age and ~(14)C Tracing for Subtropical Forest Soils in South China
     华南亚热带森林土壤~(14)C年龄及~(14)C示踪研究
短句来源
     Preliminary Study on Soil CO_2 Transfer in Subtropical Forest Karst Areas
     亚热带森林岩溶区土壤CO_2迁移动态初步研究
短句来源
     A study on the establishing technique of north subtropical forest fire mantle in Jiangsu
     江苏北亚热带森林防火林带营建技术的研究
短句来源
     It reflects that its habitats belong to subtropical forest climate;
     生活型谱显示该群落以地面芽植物为主,高位芽植物次之,反映了其生境属于亚热带森林区域气候;
短句来源
     A Study of the Nonmethane Hydrocarbons at Subtropical Forest Part Ⅰ: Seasonal Variation (Flask Sampling)
     亚热带森林非甲烷碳氢化合物的研究——Ⅰ.季节变化(钢瓶采样)
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  亚热带林
     Decomposition patterns of leaf litter of seven common canopy species in a subtropical forest: dynamics of mineral nutrients
     亚热带林7种林冠树种落叶分解中矿质元素动态(英文)
短句来源
  南亚热带森林
     The dimension, water content and germination of the seeds from 90 woody species in the lower subtropical forest were analyzed in this study. Out of 90 species, germination analysis was performed in 45 species (in which there were enough germinating individuals), and the effect of storage of seed and fruit on germination of seed was studied in 41 species (in which there were enough seeds and germinating individuals).
     研究了南亚热带森林 90种木本植物的种子和果实的大小、含水量等特征及种子萌发 ,并对其中有足够萌发个体的种 (45种 )进行了萌发分析和对有足够萌发个体和足够种子的种 (41种 )进行了种子或果实储存对萌发影响的研究。 肉质果实种子和肉质种子萌发率较干燥种子高 ,两者差异显著。
短句来源
     Effects of UV-B Radiation on Seedling Growth of Several Woody Species in the Southern Subtropical Forest
     UV-B辐射对南亚热带森林木本植物幼苗生长的影响
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     SEED GERMINATION AND SEEDLING GROWTH OF 24TREE SPECIES IN LOWER SUBTROPICAL FOREST
     南亚热带森林24种乔木的种子萌发和幼苗生长
短句来源
     Seed morphology and germination, seedling morphology and biomass of 24 treespecies in the lower subtropical forest of China were studied comparatively in light anddark conditions on expanded perlite as germination and growth medium.
     以膨胀珍珠岩为基质,在光和暗的条件下,对24种南亚热带森林乔木的种子萌发和幼苗生长进行了研究。
短句来源
     Features of Biomass and Productivity Dynamics in Successional Process of Low Subtropical Forest
     南亚热带森林演替过程生物量和生产力动态特征
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  亚热带
     Studies on ~(14)C Age and ~(14)C Tracing for Subtropical Forest Soils in South China
     华南亚热带森林土壤~(14)C年龄及~(14)C示踪研究
短句来源
     Preliminary Study on Soil CO_2 Transfer in Subtropical Forest Karst Areas
     亚热带森林岩溶区土壤CO_2迁移动态初步研究
短句来源
     A study on the establishing technique of north subtropical forest fire mantle in Jiangsu
     江苏北亚热带森林防火林带营建技术的研究
短句来源
     It reflects that its habitats belong to subtropical forest climate;
     生活型谱显示该群落以地面芽植物为主,高位芽植物次之,反映了其生境属于亚热带森林区域气候;
短句来源
     The leaching law of major ions in forested acid precipitation in a subtropical forest was examined based on the experiment in four fields sampling sites in Shaoshan from January 2001 to June 2002. Results showed that pH value obviously increased and the ionic uptake evidences were proved by SO42-, NO3-, Mg2+ and NH4+, especially for NH4+ and NO3- when rain water passing through the canopies.
     2001年1月~2002年6月对韶山亚热带常绿阔叶林4个采样区进行了酸雨的监测,以监测数据为依据,分析研究了林内穿透水中主要离子的淋溶规律。 结果表明:大气降水经过森林冠层后pH值明显升高,韶山亚热带常绿阔叶林对SO42-、NO3-、Mg2+、NH4+离子具有吸收作用,特别是NH4+和NO3-离子。
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  subtropical forest
In southern Brazil, in a subtropical forest with no pronounced dry season (average annual precipitation = 1389 mm, minimum monthly average c.
      
Phenological patterns among plant life-forms in a subtropical forest in southern Brazil
      
Typhoon-driven maintenance of rapid P cycling appears to be an important mechanism by which growth of this Okinawan subtropical forest is maintained.
      
Leaf litter decomposition and nutrient dynamics in a subtropical forest after typhoon disturbance
      
Spatial heterogeneity of soil nitrogen in a subtropical forest in China
      
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The microclimate of the subtropical forest has a great ecologica1 effect on The forest community. But the various types of microclimates have diff-erent ecological effects. The microclimate of the subtropical forest not only infleuenced the ecological characteristics of the forest plants, but the forest composition,structure, regeneration and succssion. Therefore, the study of the ecological effect of the microclimate in the subtropical forest community has practical and...

The microclimate of the subtropical forest has a great ecologica1 effect on The forest community. But the various types of microclimates have diff-erent ecological effects. The microclimate of the subtropical forest not only infleuenced the ecological characteristics of the forest plants, but the forest composition,structure, regeneration and succssion. Therefore, the study of the ecological effect of the microclimate in the subtropical forest community has practical and theorical Significance.

亚热带森林群落小气候具有巨大的生态效应,亚热带森林群落小气候影响着森林群落的组成、结构、更新和演替。以及森林植物的生态特性等诸方面。而且这种影响又是复杂的和深刻的。因此,对于亚热带森林群落小气候生态效应的研讨,具有着重要的理论意义和实践意义。

Up to the present,Yuanmou Man is a unique representative of early PleistoceneHomo erectus in China.Concerning the physical feature of Yuanmou Man,his age,relative and absolute,his stratigraphical and paleontological correlation,certain impor-tant results have been achieved.As regards the living environment of Yuanmou Manthere are different opinions.Some authors maintain that Yuanmou Man lived in aglacial condition,the others do not agree with them.The present authors try to discussthe interesting problem,using...

Up to the present,Yuanmou Man is a unique representative of early PleistoceneHomo erectus in China.Concerning the physical feature of Yuanmou Man,his age,relative and absolute,his stratigraphical and paleontological correlation,certain impor-tant results have been achieved.As regards the living environment of Yuanmou Manthere are different opinions.Some authors maintain that Yuanmou Man lived in aglacial condition,the others do not agree with them.The present authors try to discussthe interesting problem,using the vertebrate paleontological achievements.In “The Quaternary glaciation and strata in the Yuanmou basin” published in1977,Qian Fang et al.considered the Yuanmou formation as an interglacial deposit andasserted that there happened many undulations of climate in the Yuanmou interglacialas indicated by an analysis of palynology and it showed a general tendency to transi-tion from tropical,subtropical to temperate,frigid or to change from moist to semiarid.In course of deposition of the Yuanmou formation,the climate became gradually cold.It predicted(showed)a new glacial age had arrived.They had a contradiction interms back and forth.Though that the Yuanmou formation totally belongs to aninterglacial received their assent,Qian et al.concluded Yuanmou Man lived in a glacialsevere climate.In 1977,Pu and Qian published another article “Study on the fossil humanstrata——the Yuanmou formation”.In conclusion,they distinctly assigned the Lushan-Yuanmou interglacial age to member Ⅰ and member Ⅱ,and the Yuanmou glacial ageto member Ⅲ and member Ⅳ,equivalent to the Danube glacial age in Europeansequence.Unfortunately,at a symposium concerning the Quaternary glaciation and geologyheld at Lushan in 1978,Sun,M.R.et al.proclaimed that Pu and Qian had wronglycited material from their palynological study and a mistaken conclusion on paleovegeta-tion and paleoclimate had been deduced from the material by Pu and Qian.Sun et alpointed out that there are 5 sporo-pollen assemblages in the Yuanmou formation.All the five assemblages reflect the subtropical evergreen broad-leaf forest landscape.Though there happened certain undulation of climate and the forest elements wereundiscontinuously changing,yet the subtropical broad-leaf forest nature of vegetationseemed to be lasting.Thus Sun et al.considered that the above mentioned five assem-blages belong to an interglacial age.Now what has the study of mammalian fossils to say in answer to the difference(?)Describing fossil mammals from Yuanmou,Lin et al.(1978)maintained that theYuanmou fauna lived in a moderate moist grassland-forest condition,in which grassland-shrub wood lands predominated.From bottom to top the Yuanmou formation seems torepresent a gradually transitional ecological environment from forest-grassland type tograssland-forest type.According to Lin et al.the Yuanmou fauna consists of 40 forms including:1)Tertiary survivals such as Machairodus,Nestoritherium,Eostylocerus,Metacervulus,Procapreolus etc.which remind the Yushe fauna from Shanxi;2)early Pleistoceneelements such as Camis yuanmoensis,Stegodon zhaotongensis,Stegodon yuanm(?)nsis,Rusa stehlini,Hyaena licenti,Ochotonides complicidens,Axis shansius,Axis cf.rugosusetc.the latter 4 forms were also found in the early Pleistocene fauna of North China;3)a certain forms such as Viverricula,Rhinoceros sinensis,Rhizomys,Hystrix recall thatof the Ailuropoda-Stegodon fauna;4)living forms such as Sus scrofa,Panthera tigris,Panthera pardus and Hystrix subcristata.Judging from the fossil assemblage,thepresent authors agree with Colbert,Pei,Hu,Lin et al.in that the Yuanmou fauna maybe dated to the early Pleistocene.Ecologically,fossil mammals from member Ⅰ mostly used to live in the subtropicaldense forest or parkland,it reflects a predominant subtropical forest condition.Stego-donts are principal fossils in member Ⅱ which comprises Hyaena used to live in thetropical and subtropical grassland or desert shrub areas.It may mean that this memberformed in a hotter,damper climate in which might once happen certain dryness.Member Ⅲ increased in forms of mammalian fossils.Among the collection Cynailurusis a running grassland carnivore and used to live in the thicket or parkland areas.In this member herbivorous animals possess almost the half of fossil mammals,butforest animals became less than in member Ⅱ.It seems possible that the climate mightbe drier,but fossil mammals show a subtropical nature.Of fossil mammals in memberⅣ the Tertiary survivals possess about one third.Must of fossil mammals used toinhabit in the subtropical forest or parkland areas.Fossil mammals of member Ⅳ arecharacterized by the predominance of herbivorous animals.In view of the live andhabits of mammals, generally,it reflects a subtropical climate.The above mentioned analysis,by and large,coincides with the palynological studyby Sun et al.Zoographically,the Yuanmou fauna consists of the following elements:1)thoselive in the Oriental region,such as Rhizomys,Hystrix,Viverricula,Cynailurus,Rhino-ceros sincnsis,Muntiacus,Axis,Rusa and Bibos;2)those bear wide adaptation andspread both in North China and in South China,such as Microtus,Arvicola,Vulpes,Felis,Panthera tigris,Panthera pardus,Gazella and Sus scrofa;3)the Tertiarysurvivals;4)those might comparatively adapted themselves to the temperate climate,e.g.Trogontherium,Ochotonoides complicidens.As a whole,the forms adapted themselves to the moderate climate predominate in the Yuanmou fauna.Though a fewelements might live in the temperate zone,it is insufficient to be proved to have beena cold climate.It is possible that in the long period by which the Yuanmou formationdeposited certain undulation of climate took place as demonstrated by the mammalianand palynological evidences:The Tertiary survivals of the Yuanmou fauna recall theHipparion fauna wide-spread in Eurasia.Generally speaking,the Hipparion faunalived in the rather warm tropical,subtropical forest-grassland,grassland or forest-bushing broad valleys.The presence of many Tertiary forms proves that the environ-ment by which the Yuanmou fauna lived is similar to the pliocene tropical-subtropicalclimatic condition.In addition,the presence of the elements of the Ailuropoda-Stegodon fauna also shows that the paleoenvironment in the Yuanmou basin is somewhatclose to the present landscape.Finally,we conclude our opinion with a remark that the Yuanmou faunaincluding Homo erectus yuanmoensis lived in a subtropical climatic natural landscape,and the study of vertebrate paleontology and palynology does not support the hypo-thesis of having a cold glacial climate in the Yuanmou formation.

元谋人到底生活在冰期寒冷气候环境中还是生活在温暖的气候环境中?这是近几年来对云南元谋盆地进行第四纪地质、古生物研究提出的问题之一。地质学家、孢粉学家、哺乳动物学家根据自己的研究各自提出不同的看法。本文从元谋哺乳动物化石的组成、生态、动物地理分布等方面分析,认为元谋的哺乳动物,包括元谋人,生活在温暖的亚热带气候的自然景观中。这一结论和孢粉分析的结果大致相符。

The structure and ecological significances of the subtropical evergreen forest differ from those of the tropical rain forest in many aspects, chiefly in the former's lack of buttresses and cauliflories, and in the scarcity of epiphytes and large lia nas. Moreover, its coefficient of community is greater and its minimal area smaller than that of the tropical rain forest. As to the life-forms, they are also different, though a similarity in the coefficient of space exists between the two forest types.Differentiation...

The structure and ecological significances of the subtropical evergreen forest differ from those of the tropical rain forest in many aspects, chiefly in the former's lack of buttresses and cauliflories, and in the scarcity of epiphytes and large lia nas. Moreover, its coefficient of community is greater and its minimal area smaller than that of the tropical rain forest. As to the life-forms, they are also different, though a similarity in the coefficient of space exists between the two forest types.Differentiation of the evergreen forest is not well-defined. According to the data of field surveys this forest remains more complex and appears harmonious in structure, hence it can hardly be classified into distinct associations. The dominant trees distribute extensively over the whole forest, forming the pan-dominants. The characteristic species can be found only in the specific habitate, such as ridges, peaks or forge bottoms. These form additional dominants. This mixed community is one of the primary types of forest, the outgrowth of long-term historical development. At present it is still in a relatvely stable condition.The forest under investigation is a typically subtrcj-ical evergreen fcrest. It consists of floristic elements of subtropical origeji, including the species cf Fcgcccae, Hcmame-lidaceae, Theaceas, Magnoliaceae, Ilex , Styracdceas , Laurdceae , Elaeocarpaceae, Rhododendron and bamboos; all of these are the symbolic elements of the subtropical forest-types. This forest-type is distributing widely not only over the subtropical regions of Eastern Asia, but also on the uplands of the Asian Tropics. It seems thaj they are from the same origin and comprise an organic whole.According to the characteristic species three mixed communities are recognized.1 . Sempervirentisilva + Deciduisilva Mixed Community.2. Sempervirentisilva + Bambusisilva Mixed Community.3 . Sempervirentisilva + Acfculisilva Mixed Community.

亚热带常绿林比起热带雨林有许多差异。它缺乏具板根和茎花的植物,也罕见附生植物及大藤本。它的群落相同系数较大,最小面积则较小,生活型亦有不同,只有空间系数较大。 莽山常绿林的分化现象不很明显,是一个在结构上较为均一的混合常绿林,群落间的界线不易划分,建群种普遍存在于整个森林,只在特殊的环境如山脊和沟谷才有附加的特征种。这种混合的常绿林是一种原生性的森林类型,是长期历史发展的产物,目前仍处在比较稳定的状态。 莽山常绿林是典型的亚热带常绿林。它是由亚热带起源的植物区系成分所组成。这个森林类型在东亚的亚热带地区普遍存在,并且具有共同的起源,而且是统一的整体。 莽山是南岭山地海拔最高的山体,长期以来一直保存着大片的常绿林,是典型的亚热带常绿林。本文将就它的结构、生活型、生态型及群落动态等方面进行分析,探讨我国亚热带常绿林的各种特征。

 
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