摘要：Wood, xylem (ksylos in Greek means wood) is the name for a compound heterogeneous plant tissue which is created in the process of vascular plants growth. Depending on the fundamental directions of its anatomy (longitudinal radial, longitudinal tangential and transverse) it manifests various mechanical characteristics. As an organic renewable resource, it has been accompanying people on everyday basis since prehistoric times. Civilization development has also promoted wood utilization as a resource essential for distinct areas or developing industry. It has been currently estimated that wood is used in over 10 thousand applications32. The versatility and in numerous cases even irrevocability of wood usage makes it a highly desirable resource. Its temporary shortage causes many conflicts between the sellers and the buyers as well as the recipients themselves.
