"ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3"@en . . "chroma"@en . . "Chroma in the Munsell color system refers to the intensity or purity of a color. It measures how 'strong' or 'weak' a color appears, ranging from 0 (a neutral gray) to higher values that indicate more vivid or intense colors. In soils, chroma can provide insight into soil conditions such as aeration, organic matter content, and drainage. For instance, soils with high chroma (intense color) typically have better drainage and higher iron content, while low chroma can indicate waterlogged or poorly drained conditions. Source: Munsell Color, 2009. Munsell Soil Color Charts. " .