Soil color is often the most visually apparent property of soil. While color itself does not influence the behavior or practical use of soils, it does...

official color system for soil research in the 1930s. Several earlier color order systems had placed colors into a three-dimensional color solid of one...

including texture, color, structure, and consistence. Morphological evaluations of soil are typically performed in the field on a soil profile containing...

plants and soil organisms. Some scientific definitions distinguish dirt from soil by restricting the former term specifically to displaced soil. Soil consists...

their rich red color, varying from reddish brown to reddish yellow due to their high iron content. Red soil can be good or poor growing soil depending on...

widely in nature, wood, soil, human hair color, eye color and skin pigmentation. Brown is the color of dark wood or rich soil. According to public opinion...

correlations with various soil and vegetation properties. Soil color is primarily influenced by soil mineralogy. Many soil colours are due to various...

(anisotropy) within soils. These alterations lead to the development of layers, termed soil horizons, distinguished by differences in color, structure, texture...

(RMFs) consist of color patterns in a soil that are caused by loss (depletion) or gain (concentration) of pigment compared to the matrix color, formed by oxidation/reduction...

Soil texture is a classification instrument used both in the field and laboratory to determine soil classes based on their physical texture. Soil texture...

Soil science is the study of soil as a natural resource on the surface of the Earth including soil formation, classification and mapping; physical, chemical...

They exhibit a greenish-blue-grey soil color because of anoxic wetland conditions. On exposure, as the iron in the soil oxidizes colors are transformed...

American color standards—used not only for specifying the color of paints and crayons, but also, e.g., electrical wire, beer, and soil color—because it...

[better source needed] Hydrangea flower color can change based on the pH in soil. As the graph depicts, soil with a pH of 5.5 or lower will produce blue...

the permafrost. Because soil organic matter accumulates in the upper layer, most Gelisols are black or dark brown in soil color, followed by a shallow...

seven soil deposits in India. They are alluvial soil, black soil, red soil, laterite soil, or arid soil, and forest and mountainous soil, marsh soil. These...

Soil microbiology is the study of microorganisms in soil, their functions, and how they affect soil properties. It is believed that between two and four...

Soil fertility refers to the ability of soil to sustain agricultural plant growth, i.e. to provide plant habitat and result in sustained and consistent...

soil chemistry, and physical properties. More specifically, each series consists of pedons having soil horizons that are similar in soil color, soil texture...

A catena in soil science (pedology) is a series of distinct but co-evolving soils arrayed down a slope. Each soil type or "facet" differs somewhat from...

Soil pH is a measure of the acidity or basicity (alkalinity) of a soil. Soil pH is a key characteristic that can be used to make informative analysis both...

for various soil properties. A full geotechnical engineering soil description will also include other properties of the soil including color, in-situ moisture...

(/ˈtʃɜːrnəzɛm/ CHUR-nə-zem), also called black soil, regur soil or black cotton soil, is a black-colored soil containing a high percentage of humus (4% to...

classical soil science, humus is the dark organic matter in soil that is formed by the decomposition of plant and animal matter. It is a kind of soil organic...

preta de índio ("black soil of the Indian", "Indians' black earth"). Terra mulata ("mulatto earth") is lighter or brownish in color. Terra preta owes its...

available (e.g. temperature, elevation, soil composition, tissue type, and so on), in contrast to false color which is commonly used to display three...

Fallow is a pale brown color that is the color of withered foliage or sandy soil in fallow fields. This however is a post factum rationalization, and...

in the western area of Texas, where the soil color is a shade of pink, the coachwhips are also pink in color. M. f. piceus was given its common name because...

French: [ʃaʁtʁøz] ), also known as yellow-green or greenish yellow, is a color between yellow and green. It was named because of its resemblance to the...

soil at very low levels. When heated, the limonite and goethite is dehydrated and turns partially to hematite, which gives it a reddish-brown color....