Plinthosols are iron-rich soils characterized by the presence of plinthite, petroplinthite or pisoliths. Softer plinthosols are common in the wet tropics, including in the eastern Amazon basin, the central Congo Basin and parts of Southeast Asia.

Plinthosol, one of the 30 soil groups in the classification system of the Food and Agriculture Organization (FAO). Plinthosols form under a variety of climatic and topographic conditions. They are defined by a subsurface layer containing an iron-rich mixture of …

Soils of Semiarid to Subhumid Plains (Steppes or Prairies) Soils of semiarid to subhumid plains are typically grassland soils, with a natural vegetation of deeply rooted perennial grasses and shrubs that accumulate organic matter over time and to a considerable depth.

Jan 1, 2016 · Plinthosols are soils with ‘plinthite’ – a firm but soft, iron‐rich, red‐mottled clay, made up of a humus‐poor mixture of kaolinite, quartz and other constituents that irreversibly hardens to petroplinthite when exposed to repeated wetting and drying.

Plinthosols occur mainly in the moist tropical regions in low-lying positions where iron from the soil and adjacent uplands is accumulating.

Jul 1, 2023 · In this study, three typical plinthosol profiles in Wuhan (W), Yueyang (Y), and Jiujiang (J) were selected, and the mean weight diameter (MWD), geometric mean diameter (GMD), and fractal dimension were used as indicators of soil aggregate stability, as well as the erodibility factor (K value).

Most of these soils are characterized by extremely low native fertility, resulting from very low nutrient reserves, high phosphorus retention by oxide minerals, and low cation exchange capacity (CEC).

Jun 23, 2020 · This paper focuses on the soil hydraulic properties of three plinthosol profiles at Yueyang (YE), Wuhan (WH), and Jiujiang (JU) and tries to reveal the origin of plinthosol and the relationship among the soil hydraulic parameters.

Jan 20, 2020 · Plinthosols are soils with plinthite, petroplinthite or pisoliths. Plinthite is a Fe-rich (in some cases also Mn-rich), humus-poor mixture of kaolinitic clay (and other products of strong weathering such as gibbsite) with quartz and other constituents.

Jul 1, 2021 · Plinthosols, due to its textural and mineralogical characteristics, presented high amounts of quartz, demonstrate how sensitive these environments are to changes in the landscape due to...