Major Land Resource Area 029X

Southern Nevada Basin and Range

Accessed: 11/21/2024

Home / Esg catalog / MLRA 029X

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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

029XESG01

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

029XESG02

Breaks
i
Key Characteristics
1. Uplands
2. <75% bedrock outcrop
3. Surface SAR <8 and Subsurface EC <8 and Surface EC <4
4. EC <1.5 surface and <2 subsurface
5. slope >35% & >40% surface rock
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Provisional

029XESG03

Clay Uplands
i
Key Characteristics
1. Uplands
2. <75% bedrock outcrop
3. Surface SAR <8 and Subsurface EC <8 and Surface EC <4
4. EC <1.5 surface and <2 subsurface
5. slope <35% or <40% surface rock
6. Depth >55cm
7. Rock <30% surface and <30% subsurface
8. Clay >30% surface or >35% subsurface
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029XESG04

Deep Rocky
i
Key Characteristics
1. Uplands
2. <75% bedrock outcrop
3. Surface SAR <8 and Subsurface EC <8 and Surface EC <4
4. EC <1.5 surface and <2 subsurface
5. slope <35% or <40% surface rock
6. Depth >55cm
7. Rock >30% surface or >30% subsurface
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029XESG05

Finer Uplands
i
Key Characteristics
1. Uplands
2. <75% bedrock outcrop
3. Surface SAR <8 and Subsurface EC <8 and Surface EC <4
4. EC <1.5 surface and <2 subsurface
5. slope <35% or <40% surface rock
6. Depth >55cm
7. Rock <30% surface and <30% subsurface
8. Clay <30% surface and <35% subsurface
9. sand <75% and texture is Sandy Loam or finer in surface & subsurface
10. Clay >20% and texture is finer than Sandy Loam in surface
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029XESG06

Loamy Uplands
i
Key Characteristics
1. Uplands
2. <75% bedrock outcrop
3. Surface SAR <8 and Subsurface EC <8 and Surface EC <4
4. EC <1.5 surface and <2 subsurface
5. slope <35% or <40% surface rock
6. Depth >55cm
7. Rock <30% surface and <30% subsurface
8. Clay <30% surface and <35% subsurface
9. sand <75% and texture is Sandy Loam or finer in surface & subsurface
10. Clay <20% or texture is Sandy Loam or sandier in surface
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Provisional

029XESG07

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

029XESG08

Riparian
i
Key Characteristics
1. Additional water
2. Perennial water
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029XESG09

Saline Hills
i
Key Characteristics
1. Uplands
2. <75% bedrock outcrop
3. Surface SAR >8 or Subsurface EC >8 or Surface EC >4
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029XESG10

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

029XESG11

Sandy Bottoms
i
Key Characteristics
1. Additional water
2. Ephemeral water
3. Sand >50% & Clay <25% for surface and subsurface
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029XESG12

Sandy Uplands
i
Key Characteristics
1. Uplands
2. <75% bedrock outcrop
3. Surface SAR <8 and Subsurface EC <8 and Surface EC <4
4. EC <1.5 surface and <2 subsurface
5. slope <35% or <40% surface rock
6. Depth >55cm
7. Rock <30% surface and <30% subsurface
8. Clay <30% surface and <35% subsurface
9. sand >75% or texture is Loamy Sand or sandier in surface & subsurface
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Provisional

029XESG13

Shallow
i
Key Characteristics
1. Uplands
2. <75% bedrock outcrop
3. Surface SAR <8 and Subsurface EC <8 and Surface EC <4
4. EC <1.5 surface and <2 subsurface
5. slope <35% or <40% surface rock
6. Depth: 30-55cm
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Provisional

029XESG14

Very Shallow
i
Key Characteristics
1. Uplands
2. <75% bedrock outcrop
3. Surface SAR <8 and Subsurface EC <8 and Surface EC <4
4. EC <1.5 surface and <2 subsurface
5. slope <35% or <40% surface rock
6. Depth <30cm
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Provisional

29-1

Ecological Site Group 1

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Provisional

29-2

Ecological Site Group 2

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Ecological site group keys

MLRA 29

I. Additional water

A. Perennial water ... 029XESG08 – Riparian

B. Ephemeral water

1 Sand >50% & Clay <25% for surface and subsurface ... 029XESG11 – Sandy Bottoms

2 Sand <50% or Clay >25% for surface and subsurface ... 029XESG01 – Bottoms

II. Uplands

A. >75% bedrock outcrop ... 029XESG07 – Outcrops

B. <75% bedrock outcrop

1 Surface SAR >8 or Subsurface EC >8 or Surface EC >4 ... 029XESG09 – Saline Hills

2 Surface SAR <8 and Subsurface EC <8 and Surface EC <4

i. EC >1.5 surface or >2 subsurface ... 029XESG10 – Saline Uplands

ii. EC <1.5 surface and <2 subsurface

a. slope >35% & >40% surface rock ... 029XESG02 – Breaks

b. slope <35% or <40% surface rock

1) Depth <30cm ... 029XESG14 – Very Shallow

2) Depth: 30-55cm ... 029XESG13 – Shallow

3) Depth >55cm

a) Rock >30% surface or >30% subsurface ... 029XESG04 – Deep Rocky

b) Rock <30% surface and <30% subsurface

(1) Clay >30% surface or >35% subsurface ... 029XESG03 – Clay Uplands

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

(a) sand >75% or texture is Loamy Sand or sandier in surface & subsurface ... 029XESG12 – Sandy Uplands

(b) sand <75% and texture is Sandy Loam or finer in surface & subsurface

(1) Clay <20% or texture is Sandy Loam or sandier in surface ... 029XESG06 – Loamy Uplands

(2) Clay >20% and texture is finer than Sandy Loam in surface ... 029XESG05 – Finer Uplands

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