The color and luster of wood are greatly affected by the environment

During the growth process of trees, a series of biochemical reactions occur in the wood cells, producing various pigments, resins, 

gums, tannins, and other oxidized substances that deposit in the cell walls

It may penetrate the cell walls of the wood, causing it to display various colors,veneer is also greatly affected by the environment,

 The color of wood varies significantly, even among the same tree species, due to factors such as moisture content, duration of 

exposure to air, presence of decay, as well as tree age, location, cross-section, and stand

It varies depending on factors such as the condition of the ground, while people's reactions to colors also differ. For instance, 

the color of dry wood is lighter than that of wet wood. When wood is exposed to air for an extended period, its surface gradually

Gradually oxidized and changed its original color, such as the heartwood of Catalpa, which initially appears bright red-brown 

when freshly cut but darkens to a dull red-brown over time; the flesh-colored hardwood of aspen turns after 0.5 hours,

It turns yellowish-red.

 The color of wood varies depending on the tree species, and even within the same tree, differences can be observed in different

 parts, such as the distinction between heartwood and sapwood. In different wood cross-sections (radial, tangential, or end grain), 

these variations are also present

The surface, radial section, and tangential section of wood also exhibit color variations.

 Unlike metal, the wood surface is formed by various cells arranged in different ways, even on the same surface of the wood,

Differences 

in cell gaps and components can also lead to subtle variations in wood color. As a result, achieving uniformity in the color of 

natural wood during decoration is difficult, and color deviations always exist to some extent,

Sometimes, achieving color coordination often leads to significant wood waste, especially in decorating large spaces.