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geographic
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  “geographic”译为未确定词的双语例句
    THE RELATION BETWEEN WOOD COLOUR AND FOREST GEOGRAPHIC DISTRIBUTION
    木材材色与森林地理分布的关系
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    Impacts of Climate Change on Productivity of Forests in China Ⅱ.Geographic Distribution of
    气候变化对中国森林生产力的影响Ⅱ.中国森林第一性生产力的摸拟
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    Application of Remote Sensing, Geographic informationSystem, and Global Positioning System in British ColumbiaNatural Resources Inventory
    遥感、地理信息系统和全球定位系统在加拿大BC省森林资源调查中的应用
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    Establishment of geographic information system in Xishuangbanna Nature Reserve and reserve management.
    西双版纳自然保护区地理信息系统的建立与保护区的管理
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    A Study on Changes of Forest Landuse of Jinghong Main Minority Area under the Support of Geographic Information Systerm
    地理信息系统技术下的景洪主体少数民族林地利用变化研究
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  geographic
With geographic information system (GIS), the ecological water requirement for forests in the Jinghe watershed, western China was estimated.
      
Such tendency suggests that the allele frequency in these three loci may be correlated with the species' geographic distributions.
      
Variation in sexual reproduction may strongly affect plant's adaptation to local environments and the evolution of the geographic range.
      
Using the ArcView Geographic Information System (GIS) platform, a case study was carried out by selecting the population of Pinus massoniana from a needle-and broad-leaved mixed forest community in the Heishiding Nature Reserve, Guangdong Province.
      
In this study, remotely sensed data and the geographic information system were applied to analyze the changes in land cover along topographic gradients from 1978 to 2001 in Beijing, a rapidly urbanized mega city in China.
      
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On the basis of eighteen needle,cone and seed-trails,56 natural standsof Pinus tabulaeformis in different parts of the entire range are shown toillustrate the geographic variation.The differences of 18 traits among standsare all highly significant and the geographic variation of some traits has closerelationship with climatic conditions.There was a trend to have shorter andwider needles,bigger cones and seeds in cold and dry climate,but someexceptions occur in west parts of the range.The geographic...

On the basis of eighteen needle,cone and seed-trails,56 natural standsof Pinus tabulaeformis in different parts of the entire range are shown toillustrate the geographic variation.The differences of 18 traits among standsare all highly significant and the geographic variation of some traits has closerelationship with climatic conditions.There was a trend to have shorter andwider needles,bigger cones and seeds in cold and dry climate,but someexceptions occur in west parts of the range.The geographic variation ofstudied stands exists in two directions,namely latitude variation under thesame longitude and variation from south-western part to north-eastern partacross the entire range.

从油松分布区不同部分的56个天然林分中,采集针叶、球果和种子样本,测定了18个特征。经统计测验表明,这18个特征林分间的差异是高度显著的。有些特征与气候条件的相关性也很强。总的趋势是:气候越干旱寒冷,针叶越短越宽,球果和种子越大。但在西部地区,在球果和种子方面与上述一般趋势有偏离。各种特征的变异主要发生在两个方向上,即同经度下的纬度变异和沿整个分布区长轴由西南经中部地区到东北方向的变异。

Pinus tabulaeformis Carr. seeds were collected from 42 sources distributed over the entire range. 21 Characteristics of those progenies, ie. The field germination,phenology, growth, morphology and cold hardiness and so on through two and a half years were assessed for seedlings raised in anursery located in Beijing. Preliminary analysis of data showed significant differences existed in different sources. Discontinuous ecological variations were dominant and random variation were existed in the range of local...

Pinus tabulaeformis Carr. seeds were collected from 42 sources distributed over the entire range. 21 Characteristics of those progenies, ie. The field germination,phenology, growth, morphology and cold hardiness and so on through two and a half years were assessed for seedlings raised in anursery located in Beijing. Preliminary analysis of data showed significant differences existed in different sources. Discontinuous ecological variations were dominant and random variation were existed in the range of local regions. There were complicated relationship between every morpho-phsiological Characteristics and five geographic climatic factors.

在由42个种源组成的全分布区种源试验中,测定了后代在发芽、物候、生长、形态和抗寒性等方面的21个特征,并据此阐明了油松地理变异的基本特点:(1)地理变异很显著,很普遍;(2)非连续性变异即生态型变异占突出位置,也存在着随机变异;(3)各种变异特征与地理气候因素的相关关系比较复杂。

Geographic distributions of 27 species and varieties of the deciduous so far known from china were discussed with an investigatiou of their distributional Characters. Distribution maps of 15 species were shown.

本文对我国落叶标27个种和变种的地理分布进行了研究,对其分布特点作了探讨,并绘制了15个主要种和变种的地理分布图。

 
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