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forest ecosystem station
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  “forest ecosystem station”译为未确定词的双语例句
     To research biomass and productivity of Picea schrenkiana var. tianschanica forest can maintain and improve the healthy and vigor of the type forest because it is an important forest style of TianShan forest ecosystem. At the same time, the result of this study can become important source of information for the ecological networks because Tianshan State Forest Ecosystem Station is a main branch of Chinese Forest Ecosystem Research Network (CFERN).
     天山云杉(Picea schrenkiana var.tianschanica)作为天山森林生态系统的主体,研究其生物量及其生产力,不仅有利于更好的维护天山森林生态体系健康与活力,与此同时,天山定位站作为国家级林业生态监测网络重要的组成部分,其研究成果也是生态网络重要的信息源。
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  相似匹配句对
     On forest ecosystem management.
     森林生态系统经营研究
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     On Urban Forest & Ecosystem Construction
     论城市森林及其生态系统的建设
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     ecosystem
     生态系统
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     forest .
     林。
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     The Station
     车站
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The paper concerns the relationship among human population, natural resources and environment. Owing to the complexity and diversity of forest ecosystem, it needs long term cooperation of network research in different climatic zone, flora and fauna in China. Natural and man-made forests have many ecological function and economic benifits. such as energy, water. metabolism of vegetation, food chain(net) and maitain forestry productivity of "sustainable forestry" and so on, which are all studied...

The paper concerns the relationship among human population, natural resources and environment. Owing to the complexity and diversity of forest ecosystem, it needs long term cooperation of network research in different climatic zone, flora and fauna in China. Natural and man-made forests have many ecological function and economic benifits. such as energy, water. metabolism of vegetation, food chain(net) and maitain forestry productivity of "sustainable forestry" and so on, which are all studied in this paper. In China, according to seven different climatic zones with forest vegetation suggest that the 12 forest ecosystem stations should be established to combine together for the forest ecosystem network.

本文所涉及的是一个关系到人类种群与自然资源和环境相互关系的重要问题。由于森林生态系统的复杂性和多样性,需要在不同的气候带和不同的动、植物区系内作长期的联网协作研究。天然林和人工林均具有许多生态功能和经济效益,诸如:能量、水、植被的新陈代谢、食物链(网)以及维持“持久林业”的森林生产力,等等、均列入研究内容。在中国,作者按七个有林气候带提出首批应建的12个定位站,实行联网研究。

Bark beetles are abundant in forest ecosystem station on the south slope of the Qingling Mountains,but litter attention has been paid to the vertical distribution of population structure of bark beetles in different plant communities.The plant communities in forest ecosystem station on the south slope of the Qingling Mountains can be divided into 6 types according to vertical distribution of the dominant plant in different elevations.They are hilly cultivated land(community Ⅰ).Pinus tabulaeformis-Pinus...

Bark beetles are abundant in forest ecosystem station on the south slope of the Qingling Mountains,but litter attention has been paid to the vertical distribution of population structure of bark beetles in different plant communities.The plant communities in forest ecosystem station on the south slope of the Qingling Mountains can be divided into 6 types according to vertical distribution of the dominant plant in different elevations.They are hilly cultivated land(community Ⅰ).Pinus tabulaeformis-Pinus armand-Quercus aliena var.acuteserrata(community Ⅱ),Pinus tabulaeformis-Pinus armand-Quercus variabilis(community Ⅲ),Pinus tabulaeformis-Pinus armand-Quercus liaotungensis(community Ⅳ),alpine Picea asperata(community Ⅴ) and alpine Abies fabri(community Ⅵ).The aim of the study is to ascertain the vertical distribution feature and diversity of plant and bark beetles among the 6 different plant communities in forest ecosystem station on the south slope of the Qingling Mountains in Huoditang,Shaanxi Province.Six plant communities at different vertical elevations were investigated in summer of 2001 to 2003.The species diversity of higher plant communities and the Coniferous Bark Beetles communities were measured with Shannon-Wiener's diversity index,Berger-Parker's dominance,Pielou's evenness index and species richness.The result showed that from shrub communities to mixed coniferous and broadleaved forest communities,the Shannon-Wiener's diversity index,Pielou's evenness index and species richness presented an increasing trend.But from mixed coniferous and broadleaved forest communities to alpine Picea asperata communities and alpine Abies fabri communities,the Shannon-Wiener's diversity index,Pielou's evenness index and species richness presented an decreasing trend.View the situation as a whole,the diversity of broadleaved forest communities is higher than that of alpine Picea asperata and alpine Abies fabri communities.However,the Berger-Parker's dominance index presented a trend just on the contrary compared to Shannon-Wiener's diversity index,Pielou's evenness index and species richness.The result of species diversity of bark beetles in different forest communities showed that the species diversity and evenness indices decreased in the following sequence: Pinus tabulaeformis-Pinus armand-Quercus variabilis(community Ⅲ),Pinus tabulaeformis-Pinus armand-Quercus aliena var.acuteserrata (community Ⅱ),Pinus tabulaeformis-Pinus armand-Quercus liaotungensis (community Ⅳ),alpine Picea asperata(community Ⅴ),alpine Abies fabri(community Ⅵ)and hilly cultivated land(community Ⅰ).However,the dominance index presented a trend just on the contrary compared to diversity index and evenness index.Of the total collection of bark beetles specimens,which were extracted from host trees in different communities,21 species were identified.Finally,the paper discussed the following four questions: the role of bark beetles as indicators for different forest plant communities;the role of the elevation affecting the composition and distribution of plants and bark beetles in the forest ecosystem;the necessity of studying the different components and their interrelationship in forest ecosystem;the points for attention in taking further steps to deepen the study of species diversity in forest community.This paper would provide a new perspective for the research on the relationship between structure and diversity of bark beetles in different plant communities.

为探讨不同森林植物群落中植物类群与小蠹类群的结构特征以及小蠹类群随海拔高度而发生的变化,于2001~2003年夏季,采用取样调查法,依据海拔高度将秦岭火地塘生态定位站植物群落划分为山麓农田和侧柏群落(群落Ⅰ)、油松-华山松-锐齿栎群落(群落Ⅱ)、油松-华山松-栓皮栎群落(群落Ⅲ)、油松-华山松-辽东栎群落(群落Ⅳ),亚高山云杉林群落(群落Ⅴ),亚高山冷杉林群落(群落Ⅵ)6种类型的植物群落中,分乔木层、灌木层、草本层3个层次,分别计算出高等森林植物群落和针叶树小蠹类群的Shannon-W iener多样性指数、B erger-Parker生态优势度和P ie lou均匀度指数。结果表明,在山麓灌丛群落至针阔混交林群落之间,森林植物物种多样性指数、群落均匀度指数和物种丰富度呈递增趋势;在针阔混交林群落与亚高山云杉林群落、亚高山冷杉林群落之间,物种多样性指数、群落均匀度指数和物种丰富度呈下降趋势。从总体看,阔叶林中森林植被的多样性程度高于亚高山云杉林和冷杉林。群落优势度指数的变化规律则与之相反。不同森林群落类型中针叶树小蠹类群的多样性、均匀度和优势度研究结果表明,针叶树小蠹物种多样性指数和均匀度由高到低的排列顺序依...

为探讨不同森林植物群落中植物类群与小蠹类群的结构特征以及小蠹类群随海拔高度而发生的变化,于2001~2003年夏季,采用取样调查法,依据海拔高度将秦岭火地塘生态定位站植物群落划分为山麓农田和侧柏群落(群落Ⅰ)、油松-华山松-锐齿栎群落(群落Ⅱ)、油松-华山松-栓皮栎群落(群落Ⅲ)、油松-华山松-辽东栎群落(群落Ⅳ),亚高山云杉林群落(群落Ⅴ),亚高山冷杉林群落(群落Ⅵ)6种类型的植物群落中,分乔木层、灌木层、草本层3个层次,分别计算出高等森林植物群落和针叶树小蠹类群的Shannon-W iener多样性指数、B erger-Parker生态优势度和P ie lou均匀度指数。结果表明,在山麓灌丛群落至针阔混交林群落之间,森林植物物种多样性指数、群落均匀度指数和物种丰富度呈递增趋势;在针阔混交林群落与亚高山云杉林群落、亚高山冷杉林群落之间,物种多样性指数、群落均匀度指数和物种丰富度呈下降趋势。从总体看,阔叶林中森林植被的多样性程度高于亚高山云杉林和冷杉林。群落优势度指数的变化规律则与之相反。不同森林群落类型中针叶树小蠹类群的多样性、均匀度和优势度研究结果表明,针叶树小蠹物种多样性指数和均匀度由高到低的排列顺序依次为:油松-华山松-栓皮栎群落、油松-华山松-锐齿栎群落、油松-华山松-辽东栎群落、亚高山云杉林群落、亚高山冷杉林群落、山麓农田侧柏群落;针叶树小蠹群落优势度的变化趋势与之相反。6种类型的植物群落中,共获得针叶树小蠹21种。讨论了小蠹这一昆虫类群对森林植物群落的指示意义、海拔高度对森林植物和小蠹组成及分布的主要影响、研究森林生态系统各部分组成及相互关系的必要性以及进一步深入研究森林群落物种多样性需要注意的问题。

 
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