Soil Taxonomy

Soil Taxonomy - Soil Taxonomy- more details Purpose of Soil...

Info iconThis preview shows pages 1–16. Sign up to view the full content.

View Full Document Right Arrow Icon
Soil Taxonomy- more details Purpose of Soil Taxonomy: 1. Organize knowledge about soils 2. Understand relationships among different soils 3. Establish groups or classes for practical purposes. a. predicting behavior b. identifying best uses c. estimating productivity d. extending research results
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
USA - Soil Taxonomy 12 Soil Orders.
Background image of page 2
FAO – Food and Agriculture Organization - UN 26 soil units. – continental scale Acrisols Andosols Arenosols Cambisols Chernozems Ferralsols Fluvisols Gleysols Greyzems Gypsisols Histosols Kastanozems Lithosols Luvisols Nitosols Phaeozems Planosols Podzols Podzoluvisols Rankers Regosols Rendzinas Solonchaks Solonetz Vertisols Yermosols
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Soil Taxonomy - Pamunkey 1) Orders (12) 2) Suborders (54) 3) Great Groups (211) 4) Subgroups (1,100+) 5) Family (7,000+) 6) Series (a lot!) Soil Classification: fine-loamy, mixed, semiactive, thermic Ultic Hapludalfs (This is the name of a specific soil in Soil Taxonomy) This is the name of one Of the 12 large categories Alfisol - alf Oder - root of order
Background image of page 4
Soil Taxonomy - Pamunkey " State Soil" for Virginia Formed from sediments which originated in every physiographic province in the Commonwealth Representative profile located, near Jamestown, the oldest continuously worked farm in the United States. produced the world corn yield (308 bushels/acre) world record wheat yield (140 bushels/acre) in 2000. The first settlers at Jamestown grew their crops on Pamunkey soil - may be the very reason they survived. Prior to Jamestown being settled the River Indian Tribes, including the Pamunkey Tribe, recognized the high natural fertility of this soil. Its very likely Pocahontas saved Capt. John Smith's life on this soil. Soil Classification: fine-loamy, mixed, semiactive, thermic Ultic Hapludalfs (This is the name of a specific soil in Soil Taxonomy)
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Entisol - ent Recent soils - minimal development, little horizonation, young soils. 12.5% of world, Ochric + none
Background image of page 6
Entisol - Idaho A R
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Vertisol - ert Inverted - soils with high clay content, large shrink swell potential - gradually invert on themselves, 2.1% of the world, Mollic or Ochric
Background image of page 8
Vertisol = Bss at slickenslide
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Inceptisol - ept Inception - soil shows the beginning of horizon development, little or no illuviation, 15.8% of world, Ochric or Umbric + cambic.
Background image of page 10
Inceptisol Soil Formed in colluvial material in mountains of Idaho.
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Aridisols - id Arid regions of the world (19%), < 10 in. of rainfall, usually contain carbonates, Ochric + cambic or argillic or other diagnostic feature. A Bw Bk C
Background image of page 12
Aridisol in Idaho A Bt Bk Bkqm R
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Aridisol - Nevada Az Bz C1 C2 NaCl Salt accumulates on the surface and in the subsurface.
Background image of page 14
- oll soils with thick, dark, soft surface - mollic + cambic, natric, argillic or none - high base saturation - soils of the prairie 9% of the world
Background image of page 15

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 16
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/23/2012 for the course GEOL 306 taught by Professor Staff during the Spring '08 term at George Mason.

Page1 / 94

Soil Taxonomy - Soil Taxonomy- more details Purpose of Soil...

This preview shows document pages 1 - 16. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online