Study On The Structure, Wood Property And Water Transport Of Hippohae Rhamnoides

This paper studies gross structure, microscopic structure, supermicroscopic structure and a part of physical and mechanical properties of Hippophae rhamnoides as well.It also measures fibre shape of Hippophae rhamnoides and analyses the regulation of water moving during the process of whole-branch of Hippophae rhamnoides air-seasoning. Moreover , it compares with other shrub in desert and some softwood and hardwood in respect of structure and fibre shape .The result is as the following :First , Hippophae rhamnoides belongs to semi-ring porous hardwood , the texture is even .Secondly ,the proportion of wood fibre is 74.65%.The fibre shape is good and somewhat similar to arbor hardwood . Third, the basic density of Hippophae rhamnoides is 0.432 g/cm3. The volume shrinkage coefficient is 0.349%.The ratio of tangent shrinkage to radical shrinkage is about 2.41. Hippophae rhamnoides tensile (entire) strength perpendicular to the grain is big, the radical shrinkage is much larger than tangent shrinkage. Finally, during May and June, by air-dring, structure has a predominant influence on the speed of water transport. Time also has great effect on water transport within Hippophae rhamnoides. Meanwhile, the way that Hippophae rhamnoides is stacked affects water transport in Hippophae rhamnoides slightly.The research identifies that Hippophae rhamnoides is best-qualified material for paper-making and the manufacture of fibre board and particle board. Proper exploitation and utilization of shrub resource, such as, and so on, will enlarge the resource of material in the production of wood based panel.