【摘要】 本文从细胞壁、导管(管胞)、木质部三个不同的层次分别论述了维管植物木质部的耐压性和韧性机理,并对木质部强有力的输导性机理进行了阐述。从仿生学角度出发,分别提出了仿生耐压管道和一次性超强榆导毛细管束的仿生结构模型。其中仿生耐压管道自内向外分别由内管、纤维层、增厚层、均压层和保护层组成,具有很好的耐压性和一定的保温性;一次性超强输导毛细管束采用许多根微细的毛细管加以穿孔板组成,能最大限度地维持水的内聚张力。更多还原

【Abstract】 Vascular plants have a powerful transport function.In this paper,the mechanism of xylem of vascular plants to resist the pressure and to be tenacity was discussed,and the powerful transport ability of xylem was explicated,in aspects of cell wall,vessel(tracheid)and xylem.Then the model of pressure-resistant tube and one-off powerful transport capillary sheaf was made in terms of bionics.The pressure-resistant tube,which consists of the inner layer,the fiber layer,the thickness-increase layer, the pressure-balance layer and the protection layer from the inside to outside,has a good quality to resist the pressure and keep warmth.The one-off powerful transport capillary sheaf,which consists of many capillaries with perforation plate,can maintain the cohesion-tension of water very well.Finally,the problems existing in present research were also discussed in this article.更多还原