查询词典 xerophyte

The morphological and anatomical features of Quercus Section Suber,the dominant species of the sclerophyllous evergreen broad leaved-forest,from different habitats were compared The results show that Quercus Section Suber possesses dual morphological characteristics of non-succulent xerophyte and al-pine plants.

对分布在不同生态环境条件下的硬叶常绿阔叶林建群种高山栎组植物叶的形态解剖特征进行了比较研究。

Extreme xerophyte ; Reaumuria soongorica ; Salsola passerina ; diurnal variances of the photosynthetic rate ; physio-ecological characteristic

超旱生植物；红砂；珍珠；光合日变化；生理生态特征

This paper made a systematic research on Lonicerafulvotomentosa Hsu et S.C. Cheng, which grows well inkarst areas, from its biological characteristics, such asmorphology, growth and physiology. The main conclusions asfollows:(1)From the viewpoint of morphological anatomy, it hastypical xerophyte structures such as well-developed epidermisand tissues that transport water effectively, small leaf area,dense floss under the leaf surface, high stoma density, thesmall opening degree, thick cuticle, well-developed xylem andpalisade tissues, etc. The pollen of L. fulvotomentosa isseems to be spherical, and has 3 grooves, much bulge on theepidermis evenly. The shape of pollen is an important featureon taxonomy. The ripe fruit has from 1 to 18 seeds, some fruitbranch has 135 berry, its diameter is up to 0.8 centimeter.(2)From the viewpoint of growth, L.

本文从形态解剖、生长发育的节律、光合生理特性以及种子萌发生理等生物学特性方面对喀斯特适生经济植物黄褐毛忍冬进行了较为系统的研究，得出以下结论：(1)在形态解剖上，黄褐毛忍冬根茎中含有发育良好的周皮和输导组织，导管密度大，横截面宽，周皮的形成具有节制蒸腾、通气作用和保护组织免受外界环境影响的作用，宽的导管对水分的输导效率高；叶片密被绒毛，面积较小，气孔密度大、开度小，厚的角质层和发育良好的木质部和栅栏组织等是典型的旱生结构；黄褐毛忍冬花粉近球形，具3 孔沟，表面具均匀分布的小刺，刺间具网状纹理。

Xerophytic vegetation; xeromorphic vegetation; xerophious plant; xerad; xerophyte

名词 n.1。在干旱基质上生长的由旱生植物构成的植被。

The effect of NaCl on seed germination was due to both osmotic stress and ion toxicity for both halophytes, e.g., Suaeda physophora and Haloxylon ammodendron, and xerophyte, e.g., Haloxylon persicum.

NaCl对盐生植物(梭梭Haloxylon ammodendron；囊果碱蓬Suaeda physophora)和旱生植物(白梭梭Haloxylon persicum)种子萌发既有离子伤害又有渗透胁迫。

Are among the obstructive factors of gleyed paddy soil, and rice-xerophyte rotation is one of the efficient measures for its improvement.

潜育化水稻土存在渍、冷、烂、闭、毒及缺素等障碍因素，采取水旱轮作是改良利用潜育化水稻土极其重要的措施。

But GST= 0.156, Nm=1. 588. As a result, the foundation of Youyongchi Avicennia marina population was the result of the migration of hypocotyles and human factors.

这项工作可以为海岸防护林中新引进种类的判定以及为研究种群建立者效应方法的确定提供科学依据。

The two-dimensional CDRC-ADI-FDTD update equations for collision unmagnetized plasma are induced. The unconditional stability of the CDRC-ADI-FDTD formulation for collision unmagnetized plasma is obtained by the examples.

推导了碰撞非磁化等离子体中的二维CDRC-ADI-FDTD迭代公式，并用算例验证了碰撞非磁化等离子体CDRC-ADI-FDTD算法也是无条件稳定的。