Water content
（重定向自Volumetric moisture content）
![Soil composition by Volume and Mass, by phase: air, water, void (pores filled with water or air), soil, and total.](/Images/godic/202502/20/Soil-phase-diagram.svg5747.png")
Water content or moisture content is the quantity of water contained in a material, such as soil (called soil moisture), rock, ceramics, fruit, or wood. Water content is used in a wide range of scientific and technical areas, and is expressed as a ratio, which can range from 0 (completely dry) to the value of the materials' porosity at saturation. It can be given on a volumetric or mass (gravimetric) basis.