<ul><li>Rachael Kiowski </li></ul><ul><li>Grace Lawson </li></ul><ul><li>Amber Stacy </li></ul>
<ul><li>Entisols  are defined as soils that do not show any profile development other than an A horizon </li></ul><ul><li>...
<ul><li>Resistant or unweatherable parent materials - sand, iron oxide, aluminum oxide, kaolinite clay </li></ul><ul><li>E...
<ul><li>Cool climate - not cold enough in winter for permafrost </li></ul><ul><li>Dry climate </li></ul><ul><li>Flooding o...
 
 
 
<ul><li>Aquents  </li></ul><ul><ul><li>Widely distributed </li></ul></ul><ul><ul><li>Known as the ‘Wet Entisols’ </li></ul...
<ul><li>Arents </li></ul><ul><ul><li>Do not have distinct horizons due to plowing </li></ul></ul><ul><ul><li>Important irr...
<ul><li>Fluvents </li></ul><ul><ul><li>Free draining Entisols in recent water-deposited sediments on flood plains, fans, &...
<ul><li>Fluvents, continued… </li></ul><ul><ul><li>Most are frequently flooded unless protected by dams or levees </li></u...
<ul><li>Orthents </li></ul><ul><ul><li>Mainly present in the Western States </li></ul></ul><ul><ul><li>Commonly on recentl...
<ul><li>Psamments </li></ul><ul><ul><li>Widely distributed </li></ul></ul><ul><ul><li>Sandy in all layers </li></ul></ul><...
<ul><li>Common landscapes include  </li></ul><ul><ul><li>flood plains of rivers & streams </li></ul></ul><ul><ul><li>sand ...
<ul><li>Entisols often have use limitations & can be easily degraded due to: </li></ul><ul><ul><li>flooding </li></ul></ul...
<ul><li>Entisols are the  most abundant soil order. </li></ul><ul><li>Entisols are defined as? </li></ul><ul><li>What are ...
<ul><li>Brady, Nyle C.; Ray R. Weil. The Nature & Properties of Soils. Chapter 3. Section 3.5 Entisols (Recent: Little if ...
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Entisols Presentation

  1. 1. <ul><li>Rachael Kiowski </li></ul><ul><li>Grace Lawson </li></ul><ul><li>Amber Stacy </li></ul>
  2. 2. <ul><li>Entisols are defined as soils that do not show any profile development other than an A horizon </li></ul><ul><li>Have no diagnostic horizons, and most are basically unaltered from their parent material, which can be unconsolidated sediment or rock </li></ul><ul><li>Are the 2nd most abundant soil order (after Inceptisols), occupying ~16% of the global ice-free land area </li></ul>
  3. 3. <ul><li>Resistant or unweatherable parent materials - sand, iron oxide, aluminum oxide, kaolinite clay </li></ul><ul><li>Erosion - common on shoulder slopes; other kinds also important </li></ul><ul><li>Deposition - continuous, repeated deposition of new parent materials by water, wind, colluvium, mudflows, other means </li></ul>
  4. 4. <ul><li>Cool climate - not cold enough in winter for permafrost </li></ul><ul><li>Dry climate </li></ul><ul><li>Flooding or saturation </li></ul><ul><li>Shallow depth to bedrock - rock may be resistant to weathering, such as quartzite or ironstone </li></ul><ul><li>Toxic parent materials - serpentine soil, mine soils, sulfidic clays </li></ul>
  5. 8. <ul><li>Aquents </li></ul><ul><ul><li>Widely distributed </li></ul></ul><ul><ul><li>Known as the ‘Wet Entisols’ </li></ul></ul><ul><ul><li>Supports vegetation that tolerates periodic to permanent wetness </li></ul></ul><ul><ul><li>Poor drainage </li></ul></ul>
  6. 9. <ul><li>Arents </li></ul><ul><ul><li>Do not have distinct horizons due to plowing </li></ul></ul><ul><ul><li>Important irrigation crop production soils in California </li></ul></ul><ul><ul><li>Mostly used for crops, urban land, & pastures </li></ul></ul><ul><ul><li>Some are used as wildlife habitats </li></ul></ul>
  7. 10. <ul><li>Fluvents </li></ul><ul><ul><li>Free draining Entisols in recent water-deposited sediments on flood plains, fans, & deltas along rivers & streams </li></ul></ul><ul><ul><li>Stratification common </li></ul></ul>
  8. 11. <ul><li>Fluvents, continued… </li></ul><ul><ul><li>Most are frequently flooded unless protected by dams or levees </li></ul></ul><ul><ul><li>Largest areas occur in flood plains along the Mississippi River </li></ul></ul><ul><ul><li>Most used as rangeland, forests, pastures, & wildlife habitat </li></ul></ul><ul><ul><li>Some can be used as cropland </li></ul></ul>
  9. 12. <ul><li>Orthents </li></ul><ul><ul><li>Mainly present in the Western States </li></ul></ul><ul><ul><li>Commonly on recently eroded surfaces </li></ul></ul><ul><ul><li>Shallow depth </li></ul></ul><ul><ul><li>Mostly used for rangeland, pastures & wildlife habitat </li></ul></ul>
  10. 13. <ul><li>Psamments </li></ul><ul><ul><li>Widely distributed </li></ul></ul><ul><ul><li>Sandy in all layers </li></ul></ul><ul><ul><li>Among most productive rangeland in arid & semiarid climates </li></ul></ul><ul><ul><li>Some can be nearly bare due to erosion </li></ul></ul><ul><ul><li>Provides poor support for vehicles </li></ul></ul>
  11. 14. <ul><li>Common landscapes include </li></ul><ul><ul><li>flood plains of rivers & streams </li></ul></ul><ul><ul><li>sand dunes </li></ul></ul><ul><ul><li>steep mountains </li></ul></ul><ul><ul><li>mined </li></ul></ul><ul><ul><li>other disturbed lands </li></ul></ul><ul><li>Can also be found on older more stable landscapes </li></ul>
  12. 15. <ul><li>Entisols often have use limitations & can be easily degraded due to: </li></ul><ul><ul><li>flooding </li></ul></ul><ul><ul><li>steep slopes </li></ul></ul><ul><ul><li>arid conditions </li></ul></ul><ul><li>Entisols along river floodplains are often intensively farmed & are some of the most agriculturally productive soils in the world </li></ul>
  13. 16. <ul><li>Entisols are the most abundant soil order. </li></ul><ul><li>Entisols are defined as? </li></ul><ul><li>What are 3 causes of delayed or absent development? </li></ul><ul><li>What are the 5 main suborders of Entisols? </li></ul><ul><li>Entisols are what percentage of global ice-free land area? </li></ul>
  14. 17. <ul><li>Brady, Nyle C.; Ray R. Weil. The Nature & Properties of Soils. Chapter 3. Section 3.5 Entisols (Recent: Little if Any Profile Development). Pgs 90-92. </li></ul><ul><li>USDA Natural Resources Conservation Service </li></ul><ul><ul><li>http://soils.usda.gov/technical/classification/orders/entisols.html </li></ul></ul><ul><ul><li>http://soils.usda.gov/technical/classification/or ders/entisols_map.html </li></ul></ul>

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