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   临界种 的翻译结果: 查询用时:0.524秒
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临界种
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  “临界种”译为未确定词的双语例句
     The dendrites divided all quadrates investigated into several groups, which not onlyagreed with the results from all coefficients, but also reflected the difference of microenvironment.
     种间联结性的测定结果较好地反映了植物对环境的适应性,用关联分析法作出的树状图利用临界种将样方划分为若干组,体现出小生境之间的差异,反映了植物对其生境亦具有一定指示作用。
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     A New Method to Eliminate Variational Crisis
     消除临界变分的一新方法
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     Study on the Method of Measure of the Critical Surface Tension of Plants
     几植物临界表面张力值的估测
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     nov. New species: Anothopoda zanthoxyli sp .
     新
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     tomentella and G.
     野生G.
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     (M, H)-Critical Matrices
     (M,H)-临界矩阵
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  critical species
Critical species, including man, within the biosphere
      
Cyperaceae of tropical America some new or critical species II
      
Because sufficiently large suitable habitats will develop, several (critical) species may be saved.
      
The Marine Life Information Network (MarLIN) has achieved that research for a range of environmentally critical species and biotopes over the past four years and has published the reviews on the MarLIN Web site (www.marlin.ac.uk).
      
A biosystematic study of critical species ofLactuca sect.Lactucopsis
      
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Taking the bryophyte at karst area in Guilin as the object of studying, 15 patches are selected as the sampling sites where there are needed typical and completed sampling contents, and specimens are sampled in 34 spots in the sampling sites. According to living conditions at mountaintops, mountainside, the foot of the hill and in autochthonal, stone, tree and the climate, these samples can be classified into 18 types. By collecting and appraising, the bryoflora consists of 40 species (including subspecies and...

Taking the bryophyte at karst area in Guilin as the object of studying, 15 patches are selected as the sampling sites where there are needed typical and completed sampling contents, and specimens are sampled in 34 spots in the sampling sites. According to living conditions at mountaintops, mountainside, the foot of the hill and in autochthonal, stone, tree and the climate, these samples can be classified into 18 types. By collecting and appraising, the bryoflora consists of 40 species (including subspecies and varieties), which belongs to 32 genera and 19 families. By applying group analysis of mathematical ecological hierarchical in divisive classification to study the ecological distribution of bryophyte, we can find the most important species that can distinguish those types. At the same time, according to the analysis of communal or different bryophytes in those types, we can understand the ecological distribution of bryophyte. The result of research shows: (1) The methods of group analysis of mathematical ecological hierarchical in divisive classification being applied to study the ecological distribution of bryophyte is feasible and effective. (2) The distribution of bryophyte has close relationship with the humidity in karst area in Guilin. (3) The most adoptive bryophyte to karst area in Guilin is Fissidens bryoides, Mnium cuspidatum and Thuidium glaucinum successively. The research can provide important base to study the ecological distributive law of bryophyte in karst area in Guilin further.

通过以桂林喀斯特石山地区苔藓植物为研究对象进行取样调查,选择植被比较完整的样地进行典型样点取样,共选取样地15处,样点34个,采集鉴定苔藓植物40种,分属19科32属,其中苔类8科8属8种,藓类11科24属32种。以山顶、山腰、山脚和土生、石生、树生以及干湿状态环境因子组合共划分出18种不同的样点环境类型,应用数学生态学等级分划分类方法的组分析技术,以苔藓植物种在某一样点环境中存在与否的二元数据进行样点类型分划和确定临界种;并通过样点共有种或相异种的分析,探讨不同环境条件下苔藓植物生态分布特点。研究结果表明:(1)运用等级分划分类法组分析技术进行桂林喀斯特石山地区苔藓植物生态分布的研究是可行且有效的;(2)桂林喀斯特石山地区的苔藓植物分布与湿度状态关系最为密切;(3)桂林喀斯特石山地区苔藓植物与环境最佳适应可依次以小凤尾藓(Fissidensbryoides[L.]Hedw.)、尖叶提灯藓(Mniumcuspi-datumHedw.)和灰羽藓(ThuidiumglaucinumMitt)作为分划特征种。

 
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