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- forest stand spatial structure 林分空间结构
- stand spatial structure 林分空间格局
- Niushou Forest Park, the floristic composition and characteristics, composition and features, spatial structure and succession tendency were analyzed. 研究表明,该群落的植物区系特征具有一定的热带性质,温带区系成分占相当的比例。
- The results showed that Pielou evenness index, gap-fraction, openness, stand basal area, and stand density were influenced by spatial structure of the community at a broad scale. 结果表明,群落均匀度指数、空隙度和开度、林分胸高断面积和林分密度在大尺度上表现出显著的空间结构。
- The species composition, importance values of tree population, species diversity and spatial structure of evergreen broad leaved forest community in Bijia mountain of Longyan, Fujian, were analysed. 分析了福建省龙岩市笔架山常绿阔叶林群落的种类组成、乔木种群的重要值、物种多样性、水平结构和垂直结构特征。
- Spatial Structure of Allozyme Frequencies in Castanea mollissima Bl. 中国板栗居群间等位酶基因频率的空间分布。
- Lastly, it expounds the significance of the tourism spatial structure research. 最后简单论述了旅游空间结构的研究意义。
- The average population density is above 118 in the forest stand that robur can account for 90% , and 50 in a forest stand that robur account for 40% . 虫口密度与林分组成的关系为栎树纯林和栎树比例在9以上的林分平均虫口在118头/株以上,危害重;而栎树比例在4以下的林分平均虫口在50头/株以上,危害轻。
- Our research finds that the living needles can pyrolyze easily.The decomposition of needles can result in the total reduction of heat of forest stand from DSC thermogram. 且由活松针与上下层枯落松针之高低温热解曲线之变化,说明松叶腐化过程对林分整体热含量之减低有其作用。
- In urbanizing area, there were three major land use types, i.e., urban building, ecological regulation (mainly forest stand), and agricultural production (mainly crop land). 在不同的城乡梯度带;城市化地区城建用地、生态用地和生产用地3种主要土地利用方式的价值输出不同.
- There is 35% homology between the amino acid residue of the Ang and RNase and their similar spatial structure can both combine with RI as ligand. 血管生成因子的氨基酸残基组成与核糖核酸酶具有35%25的同源性,它们有着极其相似的空间结构都可以作为配体与RI结合。
- In order to keep out the flood, estrade was built as a unique form of village spatial structure. 为了防御洪水,产生了台子这一独特的村落空间结构形式。
- In the midst of the endless pine forest stood a single group of oak trees. 在无边无际的松林当中,有一小丛橡树。
- Chapter Three predicts the evolving trend of the spatial structure of the Tumen River Growth Triangle. 第三章,对图们江增长三角空间结构的演变趋势进行了预测。
- Objective:To understanding the stereo spatial structure of blood flow perfusion in hysteromyoma. 目的:了解子宫肌瘤血流灌注的立体结构。
- This paper presents some suggestions optimizing the spatial structure of tourism scenic spots system in Turpan. 并据此提出了吐鲁番地区旅游景区(点)系统的空间结构合理化的建议。
- The results also showed that when they were in mid-age, the water holding ability of the litter in the mixed forest stand of broadleaf and conifer was higher than that of the litter in the pure broadleaf or in the pure conifer forest stand. 研究结果还表明 ;在同为中龄林条件下 ;三峡库区针阔混交林林下枯落物持水能力大于阔叶树纯林或针叶树纯林林下枯落物持水能力 .
- Long-span spatial truss string structure is a new form of prestressed spatial structure. 大跨度张弦立体桁架结构是一种新型的预应力空间结构形式。
- According to location, transportation and hinterland, an obvious hierarchy of spatial structure exisits in boundary trade port group. 由于区位、通条件的差异性,口岸群的空间结构具有明显的层次性,并在边贸业迹上有所表现。
- It is suitable for developing water sports.Along the bank, casuarina equisetifolia forest stands there. 沿岸有大片木麻黄林,可为森林活动提供宽阔的腹地空间。