Making method of wood cross section year-by-year growth ring microscopic slices

Abstract

The invention discloses a making method of wood cross section year-by-year growth ring microscopic slices, which comprises the following steps: wood sampling, to be more specific, a tree root part, a tree trunk part and a tree branch part of a tree are respectively sampled, and wood strips or wood blocks (2) are sampled from pith (3) to bark (1); wood softening, to be more specific, sampled wood strips or wood blocks of trees of the same specie are placed in a heatable closed glass container, an ethylenediamine solution with a concentration of 5%-30% is added until the wood strips or wood blocks are soaked, the closed glass container is heated to enable the temperature inside the closed glass container to be maintained at 25-60 DEG C, the sampled wood strips or wood blocks are sealed for soaking and softening treatment, wherein the hard and heavy wood is soaked for 1-4d, and the light and soft wood is soaked for 5-8d; and wood sheet production, to be more specific, the softened wood strips or wood blocks are sliced for making, from the pith to the bark, small cut pieces capable of covering more than two growth rings are obliquely cut and picked in an angle of 40-50 degree according to the marshalling sequence of the growth rings in every 1cm distance. The prepared slices are suitable for wood identification and tree species identification, also suitable for extraction of wood dissection data from year-by-year growth rings without loss or confusion of the growth rings.

Description

technical field [0001] The invention belongs to the technical field of wood anatomy, and in particular relates to a method for making annual ring microsections of wood cross sections. It is widely used in wood softening, wood cross-section annual ring production method, especially the wood cross section annual ring microsection production method. Background technique [0002] Wood anatomy is mainly the study of the internal structure of wood (usually living trees). Through the study of wood structure, the function of each part of the tree can be understood. [0003] As we all know, tree growth is controlled by various genetic factors of the tree itself, and also restricted by the surrounding environment. Trees grow taller and thicker under the joint control of these two aspects, and are formed. The main factors affecting tree growth are environmental changes, which are reflected in the anatomical structure of tree rings. For example, the effective accumulated temperature ...

AI Technical Summary

Problems solved by technology

Solve the problems of weak pertinence, uneven softening, small size of wood blocks, long softening time and high softening cost in existing softening methods. While shortening the softening time, it can reduce softening costs, improve softening quality, and can be used for different types of trees, Wood blocks of different sizes are softened, and the annual ring microsections of the wood cross-sections are accurately made without losing or confusing the annual rings

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