Major Land Resource Area 028B

Central Nevada Basin and Range

Accessed: 12/21/2024

Home / Esd catalog / MLRA 028B

Key publications

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

Next steps

1

Select an ecological site

Select an ecological site using the list, keys, photos, briefcase, or quick search option located on this page.
2

Explore the ecological site description

Next, learn more about the selected ecological site and its characteristic dynamics by browsing the ecological site description and exploring alternative state and transition model formats.

Ecological site list

Ecological site map

Basemap

Topo

Road

Aerial

Hybrid

Full screen

Zoom in to display soil survey map units for an area of interest, and zoom out to display MLRAs. Select a map unit polygon to view ecological sites correlated to that map unit. View a brief description of an ecological site by clicking on its name in the map popup. Soil survey correlations may not be accurate, and ecological site classification of a location should always be verified in the field. Each selection may require the transfer of several hundred KB of data.

Ecological site keys

MLRA 28B

A hydrologically driven/meadow - XY

A' upland/non meadow

B basins (including playa) - XA

1 typic aridic

2 sandy PSCS ... R028BY021NV – SODIC DUNE

2' soil not as above

4 skeletal PSCS ... R028BY017NV – LOAMY 5-8 P.Z.

4' soil not as above

5 somewhat poorly drained/water table 20-60" (46-100cm) ... R028BY004NV – SALINE BOTTOM

5' soil not as above

6 ponded

7 long duration ponding (>7 days) ... R028BY020NV – SODIC FLAT 5-8 P.Z.

7' brief duration ponding (<7 days) ... R028BY069NV – SODIC FLAT 8-10 P.Z.

6' not ponded

8 lower sodium at surface/pH increasing with depth - R028BY047NV, R028BY097NV

8' higher sodium near surface/pH higher at surface - R028BY074NV, R028BY073NV

1' aridic-xeric

3 sandy PSCS ... R028BY005NV – SANDY 8-10 P.Z.

3' soil not as a above

9 sil (vesicular) surface/brief ponding ... R028BY056NV – SILT FLAT

9' not as above (gr or coarser surface)/no ponding - R028BY014NV, R028BY054NV, R028BY071NV

B' piedmont slopes

C piedmont slopes derived from limestone - XB

1 mesic soil temp

2 carbonatic minerology/free carbonates

3 mollic epipedon ... R028BY006NV – SHALLOW CALCAREOUS LOAM 10-12 P.Z.

3' ochric epipedon ... R028BY011NV – SHALLOW CALCAREOUS LOAM 8-10 P.Z.

2' non-carbonatic minerology/no free carbonates

4 <50 cm ... R028BY080NV – SHALLOW LOAM 8-10 P.Z.

4' >50cm

5 50-100cm

5' >100cm

6 ochric epipedon

7 soil saline/sodic (pH>9) ... R028BY028NV – SODIC TERRACE 8-10 P.Z.

7' soil non saline/sodic

9 coarse silty PSCS ... R028BY013NV – SILTY 8-10 P.Z.

9' non coarse silty PSCS

10 calcic horizon present, aridic-xeric

10' calcic horizon present, typic aridic ... R028BY075NV – COARSE GRAVELLY LOAM 6-8 P.Z.

10" calcic horizon absent

11 upper fan remnant/receives run-in moisture ... R028BY045NV – LOAMY FAN 8-12 P.Z.

11' lower fan remnant/less run-in moisture ... R028BY084NV – COARSE SILTY 6-8 P.Z.

6' mollic epipedon

8 associated with perennial streams - R028BY003NV, R028BY024NV, R028BY041NV

8' not associated with steams/run-in moisture only ... R028BY082NV – LOAMY FAN 12+ P.Z.

1' frigid soil temp ... R028BY094NV – CALCAREOUS LOAM 10-14 P.Z.

C' piedmont slopes derived from volcanics

1 argillic horizon

3 mollic epipedon ... R028BY007NV – LOAMY 10-12 P.Z.

3' ochric epipedon

4 soil <50cm ... R028BY089NV – SHALLOW CLAY LOAM 10-12 P.Z.

4' soil >50cm ... R028BY086NV – GRAVELLY CLAY 10-12 P.Z.

1' no argillic horizon

2 soil <36cm ... R028BY040NV – BARREN FAN 8-12 P.Z.

2' soil >100cm, no cambic ... R028BY052NV – DROUGHTY LOAM 8-10 P.Z.

2" soil >100cm, with cambic - R028BY010NV

B" hills & mountains - XC

1 meets soil criteria for P-J Forest

2 argillic horizon present

3 abrupt boundary to argillic ... F028BY064NV – Shallow Gravelly Mountains 12-16 P.Z

3' lacks abrupt boundary to argillic

5 mostly above 7500' (if below on N slopes) ... F028BY058NV – PIMO-CELE3/ARTRV/PSSPS-POFE

5' mostly below 7500' ... F028BY062NV – PIMO-JUOS/ARTRV/PSSPS-ACTH7

2' soil not as above

4 soil lithic ... F028BY060NV – PIMO-JUOS/ARNO4/PSSPS-ACHY

4' soil paralithic ... F028BY083NV – Cobbly Calcareous Mountain Slopes 10-12 P.Z.

1' not as above

6 argillic horizon present

7 abrupt boundary to argillic

8 presence of secondary carbonates ... R028BY092NV – CALCAREOUS CLAYPAN 14-16 P.Z.

8' lacks secondary carbonates

9 soil temp cryic (high elevation) ... R028BY036NV – CLAYPAN 14+ P.Z.

9' soil temp frigid (mid elevation)

10 soil surface dominated by cobbles ... R028BY039NV – COBBLY CLAYPAN 12-14 P.Z.

10' soil surface dominated by gravels ... R028BY037NV – CLAYPAN 12-14 P.Z.

7' lacks abrupt boundary to argillic

11 mountain ridge (narrow, windy)

12 parent material limestone ... R028BY048NV – CALCAREOUS MOUNTAIN RIDGE

12' parent material volcanic ... R028BY034NV – MOUNTAIN RIDGE 12-14 P.Z.

11' mountain other

13 soil temp mesic

16 mollic epipedon ... R028BY093NV – SHALLOW CLAY LOAM 12-14 P.Z.

16' ochric epipedon - R028BY089NV

13' soil temp frigid

14 soil <50cm ... R028BY087NV – GRAVELLY CLAY 12-14 P.Z.

14' soil >50cm ... R028BY015NV – LOAMY SLOPE 12-16 P.Z.

13" soil temp cryic

15 mtn sideslope smooth to convex - R028BY104NV, R028BY105NV

15' mtn sidelsope concave ... R028BY029NV – LOAMY 16+ P.Z.

6' soil not as above

17 soil temp mesic

18 12" precip/7000' elevation/presence of PSSP - R028BY090NV, R028BY008NV

18' <12" precip/7000' elevation/absence of PSSP - R028BY016NV, R028BY059NV

17' soil temp frigid

19 mtn sideslope convex, depth >35cm ... R028BY079NV – SHALLOW LOAM 10-14 P.Z.

19' mtn sidelsope convex, depth <35cm (CEIN7) ... R028BY066NV – LIMESTONE HILL

19" mtn sidelsope concave ... R028BY088NV – CALCAREOUS LOAM 14-16 P.Z.

19'" ES associated with perennial stream - F028BY109NV, F028BY110NV

17" soil temp cryic

20 soil <50cm

21 mountain ridge (narrow, windy) ... R028BY038NV – MOUNTAIN RIDGE 14+ P.Z.

21' mountain other mollic

22 pachic mollic ... R028BY032NV – STONY MAHOGANY SAVANNA

22' mollic ... R028BY027NV – SHALLOW CALCAREOUS SLOPE 14+ P.Z.

21" mountain other ochric ... F028BY106NV – PILO-PIFL2/SYOR2/POA

20' soil >50cm

23 soil 50- 100cm

24 ochric epipedon, calcareous PM ... F028BY072NV – Concave Mountain Slopes

24' ochric epipedon, shale PM

30 snowloading/pH <7 ... R028BY051NV – SNOWPOCKET

30' no snowloading/pH >7 ... F028BY063NV – ABCOC-PIFL2-PILO/ARTRV/LEKI2

24" mollic epipedon

25 >8500', associated with RO ... F028BY049NV – Rocky Convex Mountain Slopes

25' <8500', not associated with RO ... R028BY043NV – CALCAREOUS MAHOGANY SAVANNA

23' soil >100cm

26 ochric epipedon ... F028BY107NV – Deep North Facing Mountain Sideslopes

26' mollic epipedon

27 backslopes smooth to convex ... R028BY070NV – MOUNTAIN LOAM 16+ P.Z.

27' backslopes smooth to concave

28 backslopes concave, limestone PM

29 backslopes smooth to concave, calcic horizon ... R028BY085NV – CALCAREOUS LOAM 16+ P.Z.

29' backslopes smooth to concave, lacks calcic horizon ... R028BY042NV – MAHOGANY THICKET

28' backslopes concave, quartzite PM ... F028BY067NV – POTR5/SYOR2/BRMA4-ELTR7

20" soil >50cm, associated with perennial steam ... F028BY025NV – Mountain Stream Terrace

Download all keys

Ecological site photos

Print Options

Sections

General information
Keys

Font

Arial
Times New Roman

Other

Two-column format

Briefcase
Add ecological sites and Major Land Resource Areas to your briefcase by clicking on the briefcase () icon wherever it occurs. Drag and drop items to reorder. Cookies are used to store briefcase items between browsing sessions. Because of this, the number of items that can be added to your briefcase is limited, and briefcase items added on one device and browser cannot be accessed from another device or browser. Users who do not wish to place cookies on their devices should not use the briefcase tool. Briefcase cookies serve no other purpose than described here and are deleted whenever browsing history is cleared.

Search