Forest Mensuration and Inventory is the specialized field within forestry focused on the systematic measurement of trees, stands, and entire forests to quantify their characteristics. This discipline involves developing and applying techniques to measure key attributes such as tree diameter, height, form, age, and volume, which are then compiled through carefully designed sampling procedures, or inventories, to estimate critical information for a larger forest area. The resulting data on timber volume, biomass, growth rates, and species composition is fundamental for sustainable forest management, enabling informed decision-making in areas like harvest planning, economic valuation, carbon accounting, and ecological monitoring.