Handout #3.1

1. Handout #3.1

2. Beta silt loam = 70% Restriction at 64 cm Theta loam = 20% Restriction at 140 cm Other minor = 10% What kind of map unit? Name it! Theta silt loam = 70% Restriction at 140 cm Beta loam = 20% Restriction at 64 cm Other minor = 10% What kind of map unit? Name it! Exercise 1

3. Beta silt loam = 70% Restriction at 64 cm Theta loam = 10% Restriction at 140 cm Gamma loam = 10% Restriction > 152 cm Other minor = 10% What kind of map unit? Name it! Theta silt loam = 50% Restriction at 140 cm Gamma loam = 20% Restriction > 152 cm Beta loam = 20% Restriction at 64 cm Other minor = 10% What kind of map unit? Name it! Exercise 2

4. Exercise 3 • Theta series • OSD is coarse-loamy with clay RV of 15 percent • Map unit with Theta soils named, but clay is documented with an RV of 20 percent • No fine-loamy series that match concept and interpretations • Map unit is 250 acres in extent • Taxadjunct? YES NO

5. Exercise 4 • Theta series • OSD is coarse-loamy with clay RV of 15 percent • Map unit with Theta soils named, but clay is documented with an RV of 28 percent • No fine-loamy series that match concept and interpretations • Map unit is 1,000 acres in extent • Taxadjunct? YES NO

6. Exercise 5 • Theta series • OSD is coarse-loamy with clay RV of 15 percent • Map unit with Theta soils named, but Soil Scientist subjectively states that clay is about 18 to 20 percent • No fine-loamy series that match concept and interpretations • Map unit is 250 acres in extent • Taxadjunct? YES NO

7. Exercise 6 • Gamma series • OSD is fine-loamy over sandy or sandy-skeletal, mixed, superactive, frigid Cumulic Endoaquolls • Map unit with Gamma soils named, but the lower part of the control section is loamy-skeletal instead of sandy-skeletal • Loamy-skeletal fine-earth fraction is sandy loam with 10 to 20 percent clay • Taxadjunct? YES NO • Classification of this soil?

9. Exercise 7 • Correctly Name the Map Unit with the Series and Phases Provided • Clifford series- Loam surface texture- 2 to 7 percent slopes

10. Exercise 8 • Correctly Name the Map Unit with the Series and Phases Provided • Clifford series- Loam- 2 to 7 percent slopes- cool- rocky- karst

11. Exercise 9 • Correctly Name the Map Unit with the Series and Phases Provided • 25% Alpha silt loam (more restrictive than Beta) • 65% Beta sandy loam • They are dissimilar and cannot be delineated at scale of mapping • Beta = poorly drained phase and all components of Beta in the legend are poorly drained • 0 to 2 percent slope • frequently flooded

12. Exercise 10 • Correctly Name the Map Unit with the Series and Phases Provided • 15% Alpha silt loam • 20% Beta clay loam • 50% Beta clay loam, poorly drained • They are dissimilar and cannot be delineated at scale of mapping • 0 to 2 percent slopes • frequently flooded

13. Exercise 11 • Correctly name the map unit with the series and phases provided • 40% Alpha gravelly silt loam • 45% Beta gravelly silt loam • They are dissimilar and cannot be delineated separately at scale of mapping • 0 to 2 percent slopes • frequently flooded

14. Exercise 12 • Correctly name the map unit with the series and phases provided • 25% Alpha silt loam • 65% Beta silt loam • They are dissimilar but can be delineated separately at scale of mapping • Complex slopes ranging from 2 to 50 percent

15. Exercise 13 • Correctly name the map unit with the series and phases provided • 25% Alpha very stony silt loam • 65% Beta very stony silt loam • They are similar but not necessarily in every delineation • slope ranging from 55 to 75 percent slopes • Very rubbly surface

16. Exercise 14 • Pacolet and Cecil are similar soils with the same classification. • Pacolet is defined as having depth to base of Bt at 30 to 75 cm. • Cecil is defined as having depth to base of Bt at 75 to 150 cm. • Your soil has a range of depth to base of Bt of 30 to 90 cm. with an RV of 60 cm. • What correlation decision would you make and why?