The structure of the Christmas tree can be analyzed from three perspectives: biological characteristics, decorative functional design, and geometric composition, as follows:
1. Biological structure
Traditional Christmas trees are mostly made of evergreen conifers such as fir, spruce, or pine, and their natural forms have the following characteristics:
Conical crown: Fir, spruce and other tree species form a cone shape during natural growth. This structure can effectively resist the pressure of snow accumulation while providing space for stacked branches.
Symmetry: The symmetry of artificially pruned Christmas trees can reach more than 98%, which conforms to human visual aesthetic preferences.
Branch and leaf distribution: The length of branches increases from top to bottom, forming a visual gradient effect. 80% of commercial products follow this rule.
2. Decorative functional structure
Modern artificial Christmas trees often adopt modular design for easy assembly and decoration:
Layered inlay: Multiple tree bodies are connected layer by layer through convex rods and inlay holes to form an overall tree shape, and decorations can be hung in the gaps.
Circuit integration: The trunk is equipped with terminal sockets, and the branches are automatically connected to the Christmas light power supply after being plugged in, so that lighting and assembly are completed simultaneously.
Decoration space: The 7-layer crown structure can provide about 0.78m³ of three-dimensional decoration space, optimizing the distribution of exhibits.
3. Geometric composition
The simplified geometric model of the Christmas tree is usually composed of basic graphics:
Crown: It is composed of multiple triangles of decreasing size stacked vertically, with a small top and a large bottom, forming a sense of hierarchy.
Trunk: A slender rectangle is added to the center of the bottom as a supporting structure.
Decorative elements: The star (or other luminous objects) on the top of the tree and ribbons, gift boxes, etc. constitute additional visual elements.
Summary: The structure of the Christmas tree combines the adaptive characteristics of natural organisms (such as snow-resistant cones), the practicality of artificial design (such as modular assembly), and the symmetry of geometric aesthetics, making it a holiday symbol with both functional and symbolic meanings.

