From the Soil (simplified Chinese: 乡土中国; traditional Chinese: 鄉土中國; pinyin: Xiāngtǔ zhōngguó), first published in 1947, is a work by Fei Xiaotong, a pioneering...

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

Soil contamination, soil pollution, or land pollution as a part of land degradation is caused by the presence of xenobiotic (human-made) chemicals or other...

Soil salinity is the salt content in the soil; the process of increasing the salt content is known as salinization. Salts occur naturally within soils...

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 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...

Soil liquefaction occurs when a cohesionless saturated or partially saturated soil substantially loses strength and stiffness in response to an applied...

The Free Soil Party was a political party in the United States from 1848 to 1854, when it merged into the Republican Party. The party was focused on opposing...

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...

specifically refers to the component of regolith smaller than 1 cm. It differs substantially in properties from terrestrial soil. As the Moon's fine surface...