Clay Content Image Gallery

Clay content refers to the percentage by weight of mineral soil particles smaller than 0.002 mm, measured within the soil material less than 2 mm in size. It is influenced by soil genesis and mineral composition, typically dominated by clay mineral groups like kaolinite, smectite, and hydrous mica (e.g., illite).

Applied Relevance

Clay content plays a critical role in soil fertility, moisture retention, and structural behavior. It influences cation exchange capacity (CEC), shrink-swell potential, saturated hydraulic conductivity (Ksat), plasticity, and dispersion. These factors affect tillage, irrigation efficiency, and infrastructure planning. Understanding clay distribution helps guide both agronomic decisions and engineering applications.

Available Depths

Data is provided for cumulative and interval soil depths, including:
0–5 cm, 5–20 cm, 0–20 cm, 0–30 cm, 0–50 cm, 0–100 cm, 0–150 cm, and 0–200 cm.