Soil Color

 SOIL COLOUR The colour of the soil varies widely. It is an easily observable characteristic and is an important criterion in the description and classification of soils. Colour of soil is inherited from its parent rock material (termed as lithochromic) for example red soils developed from red sandstone. The soil colour is best determined by the comparison with the Munsell colour. Soil colour rotation is divided into three parts: Hue: It denotes the dominant spectral colour (red, yellow, blue and  green) Value: It denotes the lightness or darkness of a colour (the amount of  reflected light) Chroma: It represents the purity of the colour (strength of the colour)  For example, the numerical notation 2.5YR 5/6 suggests a hue of  2.5 YR, value of 5 and chroma of 6.The equivalent or parallel soil  colour name for this Munsell notation is red. Soil colour and composition (a) Black and dark grey colour: The variations from  black to dark grey colour of soil...