Entisol; Entisol profile showing little or no evidence of pedogenic horizon development. Used in: USDA soil taxonomy: Entisols are soils, as defined under USDA soil taxonomy, that do not show any profile development other than an A-horizon (or “A” horizon). Entisols have no diagnostic horizons, and are unaltered from their parent material ...

初育土是指土壤发育程度微弱，土壤剖面层次分异不明显，母质特征显著，土壤保持相对的幼年阶段，并明显区别于地带性土壤的一些土壤类型。其剖面类型多为A—C或A—R型。初育土相当于美国分类中的新成土(entisols)，始成土(inceptisols)；相当于联合国分类的浅层土(eptosols)、粗骨土(regosols)、始成土 ...

The central concept of Entisols is that of soils that have little or no evidence of development of pedogenic horizons. Many Entisols have an ochric epipedon and a few have an anthropic epipedon.

Learn about Entisols, in areas of recently deposited parent materials or in areas where erosion or deposition rates are faster than the rate of soil development; such as dunes, steep slopes and flood plains.

Entisol, one of the 12 soil orders in the U.S. Soil Taxonomy. Entisols are soils defined by the absence or near absence of horizons (layers) that clearly reflect soil-forming processes. Occupying just under 11 percent of the nonpolar continental land surface of the Earth, they are formed on surface

Most soils that have been "created" by humans are considered Entisols. Thus, the soils that is being "made" along this freeway bank would be man-made, yet classified as an Entisol. Note how the construction crews have spread a thin layer of topsoil over the top of a scalped, sandy landform, with its C horizon of sand showing.

2010年10月7日 · 新成土 （Entisol） - 新形成的缺少良好发育层的土壤。 通常可以在诸如沙子、基石的顶部有腐殖堆积层的松散沈积物中找到。 变性土 （Vertisol） - 颠倒的土壤。

To illustrate this concept we may consider an Entisol sequence on crystalline rocks: (Orthent) → Inceptisol (Ochrept) → Ultisol (Udult) The mineral fraction of the Entisol would likely consist mostly of comminuted primary minerals (small amounts of …

2024年5月24日 · Figure \(\PageIndex{2}\): Entisol (Image Source: USDA NRCS Used with permission) Inceptisol You can see the differentiation of layers in an inceptisol formed on colluvium in West Virginia on the right.

This order includes the soils of floodplains, sand dunes, or those found on steep slopes. Entisols are commonly formed in recently deposited materials, or in parent materials resistant to weathering (E.G., sand). Entisol soils also occur in areas of very dry or cold climate, on steep slopes, or in sandy areas.