What is the instrument used to take core samples of trees called?

The instrument used to take core samples of trees is known as an increment borer. This tool is specifically designed to extract a cylindrical piece of wood, or core, from a tree trunk without significantly damaging the tree. By doing so, it allows foresters and researchers to analyze the tree's growth rings, which provide valuable information regarding the tree's age, growth rates, and history of environmental conditions.

Analyzing the core sample can help in understanding past climate conditions, the health and vigor of the tree, and the overall forest ecology. The increment borer is a crucial tool in forestry practices, particularly in studies related to tree growth, forest management, and ecological research.