Major Land Resource Area 078B

Central Rolling Red Plains, Western Part

Accessed: 12/21/2024

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Land Resource Regions and Major Land Resource Areas of the United States, the Caribbean, and the Pacific Basin

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Ecological site group list

Provisional

078BESG01

Bottoms
i
Key Characteristics
1. Additional water
2. Ephemeral water
3. Subsurface EC <4
4. Sand <50% or clay >25% for surface and subsurface
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Provisional

078BESG02

Clay Uplands
i
Key Characteristics
1. Uplands
2. <75% bedrock outcrop
3. Surface SAR <8
4. Gypsum <5% surface and <10% subsurface
5. Subsurface EC <8 and surface EC <4
6. EC <1.5 surface and <2 subsurface
7. Depth >55cm
8. Rock <30% surface and <30% subsurface
9. Clay >30% surface or >35% subsurface
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Provisional

078BESG03

Deep Rocky
i
Key Characteristics
1. Uplands
2. <75% bedrock outcrop
3. Surface SAR <8
4. Gypsum <5% surface and <10% subsurface
5. Subsurface EC <8 and surface EC <4
6. EC <1.5 surface and <2 subsurface
7. Depth >55cm
8. Rock >30% surface or >30% subsurface
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Provisional

078BESG04

Finer Uplands
i
Key Characteristics
1. Uplands
2. <75% bedrock outcrop
3. Surface SAR <8
4. Gypsum <5% surface and <10% subsurface
5. Subsurface EC <8 and surface EC <4
6. EC <1.5 surface and <2 subsurface
7. Depth >55cm
8. Rock <30% surface and <30% subsurface
9. Clay <30% surface and <35% subsurface
10. Sand <75% or texture is sandy loam or finer in surface & subsurface
11. Clay >20% or texture is finer than sandy loam in surface
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Provisional

078BESG05

Gypsum
i
Key Characteristics
1. Uplands
2. <75% bedrock outcrop
3. Surface SAR <8
4. Gypsum >5% surface or >10% subsurface
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Provisional

078BESG06

Loamy Uplands
i
Key Characteristics
1. Uplands
2. <75% bedrock outcrop
3. Surface SAR <8
4. Gypsum <5% surface and <10% subsurface
5. Subsurface EC <8 and surface EC <4
6. EC <1.5 surface and <2 subsurface
7. Depth >55cm
8. Rock <30% surface and <30% subsurface
9. Clay <30% surface and <35% subsurface
10. Sand <75% or texture is sandy loam or finer in surface & subsurface
11. Clay <20% or texture is sandy loam or sandier in surface
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Provisional

078BESG07

Outcrops
i
Key Characteristics
1. Uplands
2. >75% bedrock outcrop
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Provisional

078BESG08

Riparian
i
Key Characteristics
1. Additional water
2. Perennial water
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Provisional

078BESG09

Saline Bottoms
i
Key Characteristics
1. Additional water
2. Ephemeral water
3. Subsurface EC >4
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Provisional

078BESG10

Saline Hills
i
Key Characteristics
1. Uplands
2. <75% bedrock outcrop
3. Surface SAR >8
4. Uplands
5. <75% bedrock outcrop
6. Surface SAR <8
7. Gypsum <5% surface and <10% subsurface
8. Subsurface EC >8 or surface EC >4
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Provisional

078BESG11

Saline Uplands
i
Key Characteristics
1. Uplands
2. <75% bedrock outcrop
3. Surface SAR <8
4. Gypsum <5% surface and <10% subsurface
5. Subsurface EC <8 and surface EC <4
6. EC >1.5 surface or >2 subsurface
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Provisional

078BESG12

Sandy Bottoms
i
Key Characteristics
1. Additional water
2. Ephemeral water
3. Subsurface EC <4
4. Sand >50% & clay <25% for surface and subsurface
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Provisional

078BESG13

Sandy Uplands
i
Key Characteristics
1. Uplands
2. <75% bedrock outcrop
3. Surface SAR <8
4. Gypsum <5% surface and <10% subsurface
5. Subsurface EC <8 and surface EC <4
6. EC <1.5 surface and <2 subsurface
7. Depth >55cm
8. Rock <30% surface and <30% subsurface
9. Clay <30% surface and <35% subsurface
10. Sand >75% or texture is loamy sand or sandier in surface & subsurface
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Provisional

078BESG14

Shallow
i
Key Characteristics
1. Uplands
2. <75% bedrock outcrop
3. Surface SAR <8
4. Gypsum <5% surface and <10% subsurface
5. Subsurface EC <8 and surface EC <4
6. EC <1.5 surface and <2 subsurface
7. Depth: 30-55cm
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Provisional

078BESG15

Very Shallow
i
Key Characteristics
1. Uplands
2. <75% bedrock outcrop
3. Surface SAR <8
4. Gypsum <5% surface and <10% subsurface
5. Subsurface EC <8 and surface EC <4
6. EC <1.5 surface and <2 subsurface
7. Depth <30cm
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Ecological site group keys

MLRA 78B

I. Additional water

A. Perennial water ... 078BESG08 – Riparian

B. Ephemeral water

1 Subsurface EC >4 ... 078BESG09 – Saline Bottoms

2 Subsurface EC <4

i. Sand >50% & clay <25% for surface and subsurface ... 078BESG12 – Sandy Bottoms

ii. Sand <50% or clay >25% for surface and subsurface ... 078BESG01 – Bottoms

II. Uplands

A. >75% bedrock outcrop ... 078BESG07 – Outcrops

B. <75% bedrock outcrop

1 Surface SAR >8 ... 078BESG10 – Saline Hills

2 Surface SAR <8

i. Gypsum >5% surface or >10% subsurface ... 078BESG05 – Gypsum

ii. Gypsum <5% surface and <10% subsurface

a. Subsurface EC >8 or surface EC >4 ... 078BESG10 – Saline Hills

b. Subsurface EC <8 and surface EC <4

1) EC >1.5 surface or >2 subsurface ... 078BESG11 – Saline Uplands

2) EC <1.5 surface and <2 subsurface

a) Depth <30cm ... 078BESG15 – Very Shallow

b) Depth: 30-55cm ... 078BESG14 – Shallow

c) Depth >55cm

(1) Rock >30% surface or >30% subsurface ... 078BESG03 – Deep Rocky

(2) Rock <30% surface and <30% subsurface

(a) Clay >30% surface or >35% subsurface ... 078BESG02 – Clay Uplands

(b) Clay <30% surface and <35% subsurface

(1) Sand >75% or texture is loamy sand or sandier in surface & subsurface ... 078BESG13 – Sandy Uplands

(2) Sand <75% or texture is sandy loam or finer in surface & subsurface

(a) Clay <20% or texture is sandy loam or sandier in surface ... 078BESG06 – Loamy Uplands

(b) Clay >20% or texture is finer than sandy loam in surface ... 078BESG04 – Finer Uplands

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