University of Phoenix Material
Types of Soil Matrix
The column on the left lists the soil features you must identify. The top row lists the soil types. Fill in the information for each soil underneath its column, including the group it belongs to, its characteristics, and two regions of the world in which it is found.
Use the information in Ch. 4, Figure 4.12, and Table 4 in Visualizing Earth Science to help you complete the chart.
OxisolsUltisolsVertisolsAlfisolsSpodosolsMollisolsAridisolsHistosolsEntisolsInceptisolsAndisolsGroup11111112333CharacteristicsVery old, highly weathered soils of low latitudes. Subsurface horizon of accumulation of mineral oxides and very low base status. Soils of equatorial, tropical, and subtropical latitude zones, with a subsurface horizon of clay accumulation and low base status. Soils of subtropical and tropical zones with high clay content and high base status. Vertisols develop deep, wide cracks when dry, and the soil blocks formed by cracking move with respect to each other.Soils of humid and sub humid climates with a subsurface horizon of clay accumulation and high base status. Alfisols range from equatorial to subarctic latitude zones. Soils of cold, moist climates, with a well-developed B horizon of illuviation and low base status.Soils of semiarid and sub humid midlatitude grasslands, with a dark, humus-rich epipedon and very high base status.Soils of dry climates, low in organic matter, and often having subsurface horizons of accumulation of carbonate minerals or soluble salts.Soils with a thick upper layer very rich in organic matter.. Soils lacking horizons, usually because their parent material has accumulated only recently.Soils with weakly developed horizons, having minerals capable of further alteration by weathering processesSoils with weakly developed horizons, having a high proportion of glassy volcanic parent material produced by erupting volcanoes.Regions of...
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