nature of soil
1Soil science — is the study of soil as a natural resource on the surface of the earth including soil formation, classification and mapping; physical, chemical, biological, and fertility properties of soils; and these properties in relation to the use and… …
2Soil horizon — Soil samples illustrating horizons (subsoil on right) A soil horizon is a specific layer in the land area that is parallel to the soil surface and possesses physical characteristics which differ from the layers above and beneath …
3Soil biology — is the study of microbial and faunal activity and ecology in soil. These organisms include earthworms, nematodes, protozoa, fungi and bacteria. Soil biology plays a vital role in determining many soil characteristics yet, being a relatively new… …
4Soil food web — The soil food web is the community of organisms living all or part of their lives in the soil. It describes a complex living system in the soil and how it interacts with the environment, plants, and animals. Introduction Food webs describe the… …
5Soil structure — is determined by how individual soil granules clump or bind together and aggregate, and therefore, the arrangement of soil pores between them. Soil structure has a major influence on water and air movement, biological activity, root growth and… …
6Soil ecology — is the study of the interactions among soil organisms, and between biotic and abiotic aspects of the soil environment. [Access Science: [http://www.accessscience.com/Encyclopedia/6/63/Est 631825 frameset.html?doi Soil Ecology] . Url last accessed …
7Soil resilience — refers to the ability of a soil to resist or recover their healthy state in response to destabilising influences this is a subset of a notion of environmental resilience . This overview provides a discussion of soil resilience in the context of… …
8Soil functions — are general capabilities of soils that are important for various agricultural, environmental, nature protection, landscape architecture and urban applications. Six key soil functions are: [cite book | author = Blum, WEH | date = 1993 | title =… …
9Soil production function — refers to the rate of bedrock weathering into soil as a function of soil thickness. A general model suggested that the rate of physical weathering of bedrock (de/dt) can be represented as an exponential decline with soil thickness: de/dt = P 0… …
10Nature's Great Events — Series title card from UK broadcast Also known as Nature s Most Amazing Events Genre Nature documentary …
