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Ecological site R054XY043ND

Shallow Sandy

Accessed: 12/21/2024

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General information

Provisional. A provisional ecological site description has undergone quality control and quality assurance review. It contains a working state and transition model and enough information to identify the ecological site.

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Figure 1. Mapped extent

Areas shown in blue indicate the maximum mapped extent of this ecological site. Other ecological sites likely occur within the highlighted areas. It is also possible for this ecological site to occur outside of highlighted areas if detailed soil survey has not been completed or recently updated.

Classification relationships

Level IV Ecoregions of the Conterminous United States: 43a – Missouri Plateau.

Associated sites

R054XY025ND	Sands
R054XY026ND	Sandy
R054XY034ND	Choppy Sands
R054XY035ND	Very Shallow
R054XY045ND	Limy Sands

Similar sites

R054XY027ND	Sandy Claypan [Well drained soils on uplands and terraces that don’t receive extra moisture with a dense sodic subsoil below 6 inches with salts below 16 inches. Subsoil will ribbon up to 1 inch. Indicator species are western wheatgrass intermixed with areas of prairie sandreed both dominating with an understory of needleandthread and blue grama, heath aster, cudweed sagewort and western yarrow along with fringed sagewort. This site has more production, a limiting layer above 20 inches but with a dense sodic subsoil below 6 inches with salts below 16 inches, less little bluestem, plains muhly, sideoats grama, more western wheatgrass, usually different landscape positions.]
R054XY034ND	Choppy Sands [Deep entisol found on knobs and ridges of level to choppy sand blown plains; will not ribbon, found upslope from sands and sandy terrace sites; won’t ribbon. Indicator species: Sand bluestem, prairie sandreed and needleandthread evenly mixed, some Canada wildrye, penstemon, lemon scurfpea western ragweed, yucca, silky prairie clover and leadplant. This site has similar production, more little bluestem, sand bluestem, and sedges, less needle-andthread, no restrictive layer within twenty inches.]
R054XY045ND	Limy Sands [Moderately deep entisol, usually calcareous within 4 inches to the surface, found on knobs and/or sideslopes of hills and buttes; will not form a ribbon; up slope of sands or sandy and down slope from shallow sandy ecological sites. Indicator species: Little bluestem, sand bluestem, and prairie sandreed, along with penstemon, silverleaf scurfpea, purple coneflower, yucca, creeping juniper, and leadplant. This site has more production, more little bluestem, porcupinegrass, big bluestem or sand bluestem and less blue grama, less plains muhly, sedges and needleandthread, no restrictive layer within twenty inches.]
R054XY038ND	Thin Loamy [Deep and moderately deep entisols, usually calcareous within 4 inches to the surface, found on knobs and/or sideslopes of hills and buttes. Will form a ribbon greater than 1 inches but not more than 2 inches. Up slope of loamy and down slope of thin loamy or shallow loamy ecological sites. Indicator species: western wheatgrass, little bluestem, plains muhly, porcupinegrass and sideoats grama, with Missouri goldenrod, dotted gayfeather, pasqueflower, purple coneflower and purple prairie clover, and shrubs like winterfat and prairie rose. This site has more production, less little bluestem, sedges and blue grama, no sand bluestem, more porcupinegrass, big bluestem and needleandthread, no restrictive layer within twenty inches.]
R054XY025ND	Sands [Does not receive additional moisture. Found on dry uplands, upslope from sandy terraces or loamy overflow sites, down slope from limy sands or shallow sandy sites. Similar landscape position as loamy, sandy, and clayey sites. Won’t form a ribbon; indicator species are sand bluestem and prairie sandreed evenly mixed, some Canada wildrye, penstemon, and leadplant and western snowberry. This site has more production, less little bluestem, blue grama and sedges, more prairie sandreed and sand bluestem, no restrictive layer within twenty inches, usually different landscape positions.]
R054XY030ND	Shallow Loamy [Some what excessively well drained soils more than 10 less than 20 inches to sedimentary bedrock that restricts root penetration. Surface layer will ribbon less than 2 inches and greater than 1 inch. Upslope from thin loamy or loamy sites and some times down slope form very shallow ecological sites. Indicator species: little bluestem, plains muhly, needle grasses and sideoats grama, with dotted gayfeather, pasqueflower, purple coneflower and purple prairie clover, and shrubs like broom snakeweed. This site has similar species but less little bluestem, sand bluestem, prairie sandreed and sedges, more plains muhly, green needlegrass, western wheatgrass, restrictive layer above twenty inches is not sandstone or gravels, slightly less production.]
R054XY035ND	Very Shallow [Excessively well drained soils less than 10 inches to scoria, gravels, shales, siltstone or sandstone bedrock that restricts root penetration, upslope of shallow clayey, shallow loamy or shallow sandy ecological sites. Indicator species are little bluestem, sideoats grama, blue grama, purple coneflower, pasqueflower and creeping juniper. This site has similar species but more needleandthread, blue grama and little bluestem, less prairie sandreed, sand bluestem, restrictive layer above10 inches bedrock or gravels, less production.]
R054XY026ND	Sandy [Does not receive additional moisture. Found on dry uplands upslope from sandy terraces or loamy overflow sites, down slope from limy sands or shallow sandy sites. Similar landscape position as loamy, sands, clayey sites; will ribbon up to 1 inches. Indicator species are prairie sandreed with western wheatgrass and green needlegrass intermixed. This site has more production, no limiting layer above 20 inches, less little bluestem, plains muhly, sideoats grama, more prairie sandreed, usually different landscape positions.]

Table 1. Dominant plant species

Tree	Not specified
Shrub	Not specified
Herbaceous	(1) Calamovilfa longifolia

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Physiographic features

This site occurs on gently sloping to moderately steep sedimentary uplands.

Table 2. Representative physiographic features

Landforms	(1) Hill (2) Outwash plain (3) Ridge
Flooding frequency	None
Ponding frequency	None
Elevation	1,600 – 3,600 ft
Slope	3 – 50%
Aspect	Aspect is not a significant factor

Climatic features

MLRA 54 is considered to have a continental climate – cold winters and hot summers, low humidity, light rainfall, and much sunshine. Extremes in temperature are characteristic. The climate is the result of this MLRA’s location in the geographic center of North America. There are few natural barriers on the northern Great Plains. The air masses move unobstructed across the plains and account for rapid changes in temperature.

Annual precipitation ranges from 14 to 18 inches per year. The normal average annual temperature is about 42° F. January is the coldest month with average temperatures ranging from about 13° F (Beach, ND) to about 16° F (Bison, SD). July is the warmest month with temperatures averaging from about 69° F (Beach, ND) to about 72° F (Timber Lake, SD). The range of normal average monthly temperatures between the coldest and warmest months is about 57° F. This large annual range attests to the continental nature of this MLRA's climate. Hourly winds are estimated to average about 11 miles per hour annually, ranging from about 13 miles per hour during the spring to about 10 miles per hour during the summer. Daytime winds are generally stronger than nighttime and occasional strong storms may bring brief periods of high winds with gusts to more than 50 miles per hour.

Growth of native cool-season plants begins in late March and continues to early to mid July. Native warm-season plants begin growth in mid May and continue to the end of August. Green up of cool-season plants can occur in September and October when adequate soil moisture is present.

Table 3. Representative climatic features

Frost-free period (average)	136 days
Freeze-free period (average)	157 days
Precipitation total (average)	18 in

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Figure 2. Monthly precipitation range

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Figure 3. Monthly average minimum and maximum temperature

Soil features

The common features of soils in this site are the loamy fine sand, fine sandy loam subsoils or loam subsoils (with sand and gravels at 14 inches) and slopes of 3 to 50 percent. The soils in this site are somewhat excessive to excessively drained and formed in residuum and alluvium. The loamy fine sand, fine sandy loam, or loam surface layer is 3 to 6 inches thick. The soils have a moderate to rapid infiltration rate. This site typically should show slight to no evidence of rills, wind scoured areas or pedestalled plants. Water flow paths are broken, irregular in appearance or discontinuous with numerous debris dams or vegetative barriers. The soil surface is stable and intact. Sub-surface soil layers are restrictive to water movement and root penetration. The low available water capacity has a strong effect on the soil-water-plant relationship.

These soils are susceptible to water erosion and to a lesser degree wind erosion. The hazard of water erosion increases where vegetative cover is not adequate. Loss of the soil surface layer can result in a shift in species composition and/or production.

Major soil series correlated to this ecological site can be found in Section II of the Natural Resources Conservation Service Field Office Technical Guide or the following web sites:
North Dakota http://www.nd.nrcs.usda.gov/
South Dakota http://www.sd.nrcs.usda.gov/
Montana http://www.mt.nrcs.usda.gov/

Table 4. Representative soil features

Surface texture	(1) Very gravelly loamy fine sand (2) Fine sandy loam (3) Loam
Family particle size	(1) Sandy
Drainage class	Somewhat excessively drained to excessively drained
Permeability class	Moderate to rapid
Soil depth	10 – 20 in
Surface fragment cover <=3"	10%
Surface fragment cover >3"	5%
Available water capacity (0-40in)	1 – 5 in
Calcium carbonate equivalent (0-40in)	5 – 15%
Electrical conductivity (0-40in)	2 mmhos/cm
Sodium adsorption ratio (0-40in)	2
Soil reaction (1:1 water) (0-40in)	6.1 – 8.4
Subsurface fragment volume <=3" (Depth not specified)	10%
Subsurface fragment volume >3" (Depth not specified)	5%

Ecological dynamics

This site developed under Northern Great Plains climatic conditions, and included natural influence of large herbivores and occasional fire. Changes will occur in the plant communities due to climatic conditions and/or management actions. Due to the nature of the soils, the site is considered quite fragile. Under continued adverse impacts, a rapid decline in vegetative vigor and composition will occur. Under favorable vegetative management treatments the site can slowly return to the Historic Climax Plant Community (HCPC).

The plant community upon which interpretations are primarily based is the Historic Climax Plant Community. The HCPC has been determined by study of rangeland relic areas, areas protected from excessive disturbance, and areas under long-term rotational grazing regimes. Trends in plant community dynamics ranging from heavily grazed to lightly grazed areas, seasonal use pastures, and historical accounts also have been considered. Subclimax plant communities, states, transitional pathways, and thresholds have been determined through similar studies and experience.
Heavy continuous grazing or continuous seasonal (spring) grazing without adequate recovery opportunities following each grazing event during the growing season will cause threadleaf sedge to increase. Species such as prairie sandreed, sand bluestem and little bluestem will decrease in frequency and production.

In time, heavy continuous grazing will likely cause upland sedges and blue grama to dominate and pioneer perennials, annuals, and club moss (in its range) to increase. This plant community is relatively stable and the competitive advantage prevents other species from establishing. This plant community is less productive than the HCPC. Runoff increases and infiltration will decrease. Soil erosion will be minimal.

Extended periods of non-use and/or lack of fire will result in a plant community having high litter levels causing decadence, mortality and an increase of cool season grasses such as Kentucky bluegrass and/or smooth bromegrass.
The following diagram illustrates the common plant communities and vegetation states commonly occurring on the site and the transition pathways between communities and states. The ecological processes will be discussed in more detail in the plant community descriptions following the diagram.

State and transition model

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State 1
Prairie Sandreed/Bluestem/Needleandthread (HCPC)

Community 1.1
Prairie Sandreed/Bluestem/Needleandthread (HCPC)

This is the interpretive plant community for this site and is considered to be the Historic Climax Plant Community (HCPC). This community evolved with grazing by large herbivores and occasional prairie fires. This plant community can be found on areas that are properly managed with grazing and/or prescribed burning, and sometimes on areas receiving occasional short periods of rest. The potential vegetation is about 80% grasses or grass-like plants, 10% forbs, 7% shrubs and 1% cryptogams. The major grasses include prairie sandreed, sand bluestem, needleandthread and little bluestem. Other grasses include sideoats grama, blue grama and plains muhly. Significant forbs include gayfeather, purple coneflower, prairie clover and stiff sunflower. Significant shrubs are fringed sagewort, broom snakeweed, creeping juniper and rose. This plant community is well adapted to the Northern Great Plains climatic conditions. Individual species can vary greatly in production depending on growing conditions (timing and amount of precipitation and temperature). Community dynamics, nutrient cycle, water cycle and energy flow are functioning properly. Plant litter is properly distributed with very little movement off-site and natural plant mortality is very low. The diversity in plant species allows for high drought tolerance. Low available water capacity provides an unfavorable soil-water-plant relationship.

Figure 4. Annual production by plant type (representative values) or group (midpoint values)

Table 5. Annual production by plant type

Plant type	Low (lb/acre)	Representative value (lb/acre)	High (lb/acre)
Grass/Grasslike	810	1239	1665
Forb	65	105	145
Shrub/Vine	25	49	75
Moss	0	7	15
Total	900	1400	1900

Figure 5. Plant community growth curve (percent production by month). ND5402, Missouri Slope, Native Grasslands, Cool/Warm-season Mix. Cool-season/warm-season dominant.

Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
J	F	M	A	M	J	J	A	S	O	N	D
0	0	2	6	21	40	20	6	4	1	0	0

State 2
Sedge

Community 2.1
Sedge

This plant community is the result of long-term, heavy, continuous grazing and/or continuous seasonal grazing (annual, early spring seasonal grazing). Threadleaf sedge dominates the community. Other grasses that have increased are blue grama, red threeawn and sand dropseed. Prairie sandreed and little bluestem have been significantly reduced. Sand bluestem and sideoats grama are mostly absent. Significant forbs include American pasqueflower, cutleaf ironplant, groundplum milkvetch, goldenrod, prairie coneflower and scarlet globemallow. There is usually less than 10% bare ground. The significant shrubs include broom snakeweed, cactus and fringed sagewort. This plant community can occur throughout the pasture, on spot grazed areas, and around water sources where season-long grazing patterns occur. Species diversity has shifted from a predominantly tall warm-season grass community to a shortgrass/grass-like plant community. Production has been significantly decreased. Energy flow, water cycle and mineral cycle have been negatively affected. Litter levels are very low and unevenly distributed. Soil erosion may be a concern on steeper slopes and exposed areas.

Figure 6. Annual production by plant type (representative values) or group (midpoint values)

Table 6. Annual production by plant type

Plant type	Low (lb/acre)	Representative value (lb/acre)	High (lb/acre)
Grass/Grasslike	235	400	465
Forb	45	62	80
Shrub/Vine	20	30	40
Moss	0	8	15
Total	300	500	600

Figure 7. Plant community growth curve (percent production by month). ND5408, Missouri Slope, Sedge Dominant. Cool-season, short grasses and grass-likes.

Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
J	F	M	A	M	J	J	A	S	O	N	D
0	0	3	10	30	25	20	5	5	2	0	0

State 3
Low Plant Density, Excessive Litter

State 4
Club Moss

Additional community tables

Table 7. Community 1.1 plant community composition

Group	Common name	Symbol	Scientific name	Annual production (lb/acre)	Foliar cover (%)
Grass/Grasslike
1				280–420
	prairie sandreed	CALO	Calamovilfa longifolia	210–350	–
	little bluestem	SCSC	Schizachyrium scoparium	70–210	–
	plains muhly	MUCU3	Muhlenbergia cuspidata	56–112	–
2	Bluestem			70–140
	sand bluestem	ANHA	Andropogon hallii	70–140	–
3	Needlegrasses			70–154
	needle and thread	HECOC8	Hesperostipa comata ssp. comata	70–154	–
	green needlegrass	NAVI4	Nassella viridula	28–56	–
4	Grama			56–112
	blue grama	BOGR2	Bouteloua gracilis	42–98	–
	hairy grama	BOHI2	Bouteloua hirsuta	14–70	–
5	Other Native Grasses			70–140
	sideoats grama	BOCU	Bouteloua curtipendula	28–56	–
	western wheatgrass	PASM	Pascopyrum smithii	28–56	–
	thickspike wheatgrass	ELLAL	Elymus lanceolatus ssp. lanceolatus	0–42	–
	prairie Junegrass	KOMA	Koeleria macrantha	14–28	–
	bluebunch wheatgrass	PSSP6	Pseudoroegneria spicata	0–28	–
	sand dropseed	SPCR	Sporobolus cryptandrus	14–28	–
	Grass, perennial	2GP	Grass, perennial	14–28	–
	Fendler threeawn	ARPUL	Aristida purpurea var. longiseta	14–28	–
	plains reedgrass	CAMO	Calamagrostis montanensis	0–14	–
	Scribner's rosette grass	DIOLS	Dichanthelium oligosanthes var. scribnerianum	14	–
6	Grass-Likes			70–210
	threadleaf sedge	CAFI	Carex filifolia	42–140	–
	sun sedge	CAINH2	Carex inops ssp. heliophila	28–70	–
	Grass-like (not a true grass)	2GL	Grass-like (not a true grass)	0–42	–
	Pennsylvania sedge	CAPE6	Carex pensylvanica	14	–
Forb
8	Forbs			70–140
	prairie clover	DALEA	Dalea	28–42	–
	blacksamson echinacea	ECAN2	Echinacea angustifolia	14–28	–
	stiff sunflower	HEPA19	Helianthus pauciflorus	14–28	–
	blazing star	LIATR	Liatris	14–28	–
	tarragon	ARDR4	Artemisia dracunculus	14–28	–
	purple locoweed	OXLA3	Oxytropis lambertii	14–28	–
	goldenrod	SOLID	Solidago	14–28	–
	scarlet globemallow	SPCO	Sphaeralcea coccinea	14	–
	spiderwort	TRADE	Tradescantia	14	–
	American vetch	VIAM	Vicia americana	14	–
	beardtongue	PENST	Penstemon	14	–
	spiny phlox	PHHO	Phlox hoodii	14	–
	cinquefoil	POTEN	Potentilla	14	–
	scurfpea	PSORA2	Psoralidium	14	–
	eastern pasqueflower	PUPA5	Pulsatilla patens	0–14	–
	upright prairie coneflower	RACO3	Ratibida columnifera	14	–
	white sagebrush	ARLU	Artemisia ludoviciana	14	–
	groundplum milkvetch	ASCR2	Astragalus crassicarpus	14	–
	plains milkvetch	ASGI5	Astragalus gilviflorus	0–14	–
	wavyleaf thistle	CIUN	Cirsium undulatum	0–14	–
	Forb, perennial	2FP	Forb, perennial	0–14	–
	common yarrow	ACMI2	Achillea millefolium	14	–
	onion	ALLIU	Allium	14	–
	pussytoes	ANTEN	Antennaria	14	–
	rush skeletonplant	LYJU	Lygodesmia juncea	14	–
	lacy tansyaster	MAPI	Machaeranthera pinnatifida	0–14	–
	hairy false goldenaster	HEVI4	Heterotheca villosa	14	–
	sanddune wallflower	ERCAC	Erysimum capitatum var. capitatum	0–14	–
	blanketflower	GAAR	Gaillardia aristata	14	–
Shrub/Vine
9	Shrubs			28–70
	rose	ROSA5	Rosa	14–28	–
	soapweed yucca	YUGL	Yucca glauca	0–14	–
	Subshrub (<.5m)	2SUBS	Subshrub (<.5m)	0–14	–
	prairie sagewort	ARFR4	Artemisia frigida	14	–
	kinnikinnick	ARUV	Arctostaphylos uva-ursi	0–14	–
	broom snakeweed	GUSA2	Gutierrezia sarothrae	14	–
	creeping juniper	JUHO2	Juniperus horizontalis	14	–
	winterfat	KRLA2	Krascheninnikovia lanata	0–14	–
	pricklypear	OPUNT	Opuntia	14	–
	skunkbush sumac	RHTR	Rhus trilobata	0–14	–
Moss
10	Cryptogams			0–14
	lesser spikemoss	SEDE2	Selaginella densa	0–14	–

Table 8. Community 2.1 plant community composition

Group	Common name	Symbol	Scientific name	Annual production (lb/acre)	Foliar cover (%)
Grass/Grasslike
1				5–10
	prairie sandreed	CALO	Calamovilfa longifolia	5–10	–
	little bluestem	SCSC	Schizachyrium scoparium	5–10	–
	plains muhly	MUCU3	Muhlenbergia cuspidata	0–5	–
3	Needlegrasses			5–50
	needle and thread	HECOC8	Hesperostipa comata ssp. comata	5–50	–
4	Grama			25–75
	blue grama	BOGR2	Bouteloua gracilis	25–75	–
	hairy grama	BOHI2	Bouteloua hirsuta	5–25	–
6	Grass-Likes			150–200
	threadleaf sedge	CAFI	Carex filifolia	150–200	–
	sun sedge	CAINH2	Carex inops ssp. heliophila	0–25	–
	Grass-like (not a true grass)	2GL	Grass-like (not a true grass)	0–20	–
7	Non-Native Grasses			0–10
	crested wheatgrass	AGCR	Agropyron cristatum	0–10	–
	cheatgrass	BRTE	Bromus tectorum	0–10	–
Shrub/Vine
5	Other Native Grasses			15–35
	sand dropseed	SPCR	Sporobolus cryptandrus	10–35	–
	Fendler threeawn	ARPUL	Aristida purpurea var. longiseta	5–25	–
	Scribner's rosette grass	DIOLS	Dichanthelium oligosanthes var. scribnerianum	0–5	–
	thickspike wheatgrass	ELLAL	Elymus lanceolatus ssp. lanceolatus	0–5	–
	prairie Junegrass	KOMA	Koeleria macrantha	0–5	–
	western wheatgrass	PASM	Pascopyrum smithii	0–5	–
	Grass, perennial	2GP	Grass, perennial	0–5	–
9	Shrubs			25–35
	prairie sagewort	ARFR4	Artemisia frigida	10–15	–
	broom snakeweed	GUSA2	Gutierrezia sarothrae	10–15	–
	soapweed yucca	YUGL	Yucca glauca	0–15	–
	creeping juniper	JUHO2	Juniperus horizontalis	5–10	–
	pricklypear	OPUNT	Opuntia	5–10	–
	rose	ROSA5	Rosa	5–10	–
	Subshrub (<.5m)	2SUBS	Subshrub (<.5m)	0–5	–
	skunkbush sumac	RHTR	Rhus trilobata	0–5	–
Forb
8	Forbs			50–75
	sweetclover	MELIL	Melilotus	0–25	–
	tarragon	ARDR4	Artemisia dracunculus	15–20	–
	lacy tansyaster	MAPI	Machaeranthera pinnatifida	15–20	–
	scurfpea	PSORA2	Psoralidium	10–15	–
	eastern pasqueflower	PUPA5	Pulsatilla patens	10–15	–
	upright prairie coneflower	RACO3	Ratibida columnifera	10–15	–
	goldenrod	SOLID	Solidago	10–15	–
	scarlet globemallow	SPCO	Sphaeralcea coccinea	10–15	–
	Cuman ragweed	AMPS	Ambrosia psilostachya	5–15	–
	purple locoweed	OXLA3	Oxytropis lambertii	10–15	–
	wavyleaf thistle	CIUN	Cirsium undulatum	5–15	–
	curlycup gumweed	GRSQ	Grindelia squarrosa	0–15	–
	hairy false goldenaster	HEVI4	Heterotheca villosa	10–15	–
	Canadian horseweed	COCA5	Conyza canadensis	0–10	–
	spiny phlox	PHHO	Phlox hoodii	5–10	–
	pussytoes	ANTEN	Antennaria	5–10	–
	common yarrow	ACMI2	Achillea millefolium	5–10	–
	common dandelion	TAOF	Taraxacum officinale	5–10	–
	yellow salsify	TRDU	Tragopogon dubius	5–10	–
	rush skeletonplant	LYJU	Lygodesmia juncea	5–10	–
	American vetch	VIAM	Vicia americana	0–5	–
	onion	ALLIU	Allium	5	–
	Forb, annual	2FA	Forb, annual	5	–
	Forb, perennial	2FP	Forb, perennial	5	–
	white sagebrush	ARLU	Artemisia ludoviciana	0–5	–
	plains milkvetch	ASGI5	Astragalus gilviflorus	0–5	–
	woolly plantain	PLPA2	Plantago patagonica	5	–
	cinquefoil	POTEN	Potentilla	0–5	–
	blacksamson echinacea	ECAN2	Echinacea angustifolia	5	–
	blazing star	LIATR	Liatris	0–5	–
Moss
10	Cryptogams			5–10
	lesser spikemoss	SEDE2	Selaginella densa	5–10	–

Interpretations

Animal community

Animal Community – Wildlife Interpretations:
Under development.

Animal Community – Grazing Interpretations:
This site is well adapted to managed grazing by domestic livestock. The predominance of herbaceous plants across all plant community phases best lends these sites to grazing by cattle but other domestic grazers with differing diet preferences may also be a consideration depending upon management objectives. Often, the current plant community does not entirely match any particular plant community (as described in the ecological site description). Because of this, a resource inventory is necessary to document plant composition and production. Proper interpretation of this inventory data will permit the establishment of a safe, initial stocking rate for the type and class of animals and level of grazing management. More accurate stocking rate estimates should eventually be calculated using actual stocking rate information and monitoring data.

Hydrological functions

Water is the principal factor limiting herbage production on this site. The site is dominated by soils in hydrologic groups D and B. Infiltration varies from moderate to rapid and runoff potential varies from low to medium depending on soil hydrologic group and ground cover. In many cases, areas with greater than 75% ground cover have the greatest potential for high infiltration and lower runoff. An exception would be where short grasses form a dense sod and dominate. Areas where ground cover is less than 50% have the greatest potential to have reduced infiltration and higher runoff (refer to Section 4, NRCS National Engineering Handbook for runoff quantities and hydrologic curves).

Recreational uses

This site provides hunting opportunities for upland game species. The wide variety of plants which bloom from spring until fall have an esthetic value that appeals to visitors.

Wood products

No appreciable wood products are present on the site.

Other products

Seed harvest of native plant species can provide additional income on this site.

Supporting information

Inventory data references

Information presented here has been derived from NRCS clipping and other inventory data. Also, field knowledge of range-trained personnel was used. All descriptions were peer reviewed and/or field tested by various private, state and federal agency specialist.
Those involved in developing this site description include: Dennis Froemke, NRCS Range Management Specialist; Jeff Printz, NRCS State Range Management Specialist; Stan Boltz, NRCS Range Management Specialist; Darrell Vanderbusch, NRCS Resource Soil Scientist; L. Michael Stirling, NRCS Range Management Specialist; Dean Chamrad, NRCS State Range Management Specialist; David Dewald, NRCS State Biologist; and Brad Podoll, NRCS Biologist.
Data Source Number of Records Sample Period State County
SCS-RANGE-417 10 1968 – 1986 ND Adams, Grant, Slope
Ocular estimate 5 2000 – 2001 ND Bowman, Dunn,

Other references

High Plains Regional Climate Center, University of Nebraska, 830728 Chase Hall, Lincoln, NE 68583-0728. (http://hpccsun.unl.edu)
USDA, NRCS. National Water and Climate Center, 101 SW Main, Suite 1600, Portland, OR 97204-3224. (http://wcc.nrcs.usda.gov)
USDA, NRCS. National Range and Pasture Handbook, September 1997
USDA, NRCS. National Soil Information System, Information Technology Center, 2150 Centre Avenue, Building A, Fort Collins, CO 80526. (http://nasis.nrcs.usda.gov)
USDA, NRCS. 2001. The PLANTS Database, Version 3.1 (http://plants.usda.gov). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.
USDA, NRCS, Various Published Soil Surveys.

Contributors

Jeff Printz
Jeff Printz/Stan Boltz

Rangeland health reference sheet

Interpreting Indicators of Rangeland Health is a qualitative assessment protocol used to determine ecosystem condition based on benchmark characteristics described in the Reference Sheet. A suite of 17 (or more) indicators are typically considered in an assessment. The ecological site(s) representative of an assessment location must be known prior to applying the protocol and must be verified based on soils and climate. Current plant community cannot be used to identify the ecological site.

Author(s)/participant(s)	J. Printz, S. Boltz, R. Kilian, D. Froemke, M. Rasmusson
Contact for lead author	jeff.printz@nd.usda.gov 701-530-2080
Date	05/24/2011
Approved by	Jeff Printz
Approval date
Composition (Indicators 10 and 12) based on	Annual Production

Indicators

Number and extent of rills:
Due to the wide slope range associated with this site, the number and extent of rills will vary from none on sites with slopes of < 9% to common on slopes > 25%.
Presence of water flow patterns:
Due to the wide slope range associated with this site, water flow patterns will vary from barely observable on sites with slopes of < 9% from broken and irregular in appearance to continuous on slopes > 25%.
Number and height of erosional pedestals or terracettes:
Not evident on slopes < 9%. Erosional pedestals will be present with terracettes present at debris dams on slopes > 9%.
Bare ground from Ecological Site Description or other studies (rock, litter, lichen, moss, plant canopy are not bare ground):
Bare ground is 25 to 40%.
Number of gullies and erosion associated with gullies:
Active gullies restricted to concentrated water flow patterns on steeper slopes.
Extent of wind scoured, blowouts and/or depositional areas:
None.
Amount of litter movement (describe size and distance expected to travel):
Little to no plant litter movement occurs on slopes < 9%. Litter movement does occur on slopes > 25%.
Soil surface (top few mm) resistance to erosion (stability values are averages - most sites will show a range of values):
Plant cover and litter is at 60% or greater of soil surface and maintains soil surface integrity. Stability class anticipated to be 5 or greater.
Soil surface structure and SOM content (include type of structure and A-horizon color and thickness):
Use soil series description for depth, color and structure of A-horizon.
Effect of community phase composition (relative proportion of different functional groups) and spatial distribution on infiltration and runoff:
Plant canopy (40% maximum), moderate to moderately slow rates.
Presence and thickness of compaction layer (usually none; describe soil profile features which may be mistaken for compaction on this site):
No compaction layer would be expected except for the naturally occurring rooting restriction occurring at 10 to 20 inches.
Functional/Structural Groups (list in order of descending dominance by above-ground annual-production or live foliar cover using symbols: >>, >, = to indicate much greater than, greater than, and equal to):

Dominant:
Tall, warm-season rhizomatous grasses >

Sub-dominant:
Mid, warm-season bunchgrasses = mid, cool-season grasses >

Other:
grass-likes > forbs > short, warm-season grass > shrubs > short, cool-season grasses

Additional:
Due to differing root structure and distribution, Kentucky bluegrass and smooth bromegrass do not fit into reference plant community F/S groups.
Amount of plant mortality and decadence (include which functional groups are expected to show mortality or decadence):
Some plant mortality and decadence would be expected (5 – 10%).
Average percent litter cover (%) and depth ( in):
Litter cover is in contact with soil surface.
Expected annual annual-production (this is TOTAL above-ground annual-production, not just forage annual-production):
Representative value = 1400 lbs/ac with a range of 900 lbs/ac to 1900 lbs/ac (air dry weight) depending upon growing conditions.
Potential invasive (including noxious) species (native and non-native). List species which BOTH characterize degraded states and have the potential to become a dominant or co-dominant species on the ecological site if their future establishment and growth is not actively controlled by management interventions. Species that become dominant for only one to several years (e.g., short-term response to drought or wildfire) are not invasive plants. Note that unlike other indicators, we are describing what is NOT expected in the reference state for the ecological site:
State and local noxious, Kentucky bluegrass, smooth bromegrass, creeping juniper (JUHO2)
Perennial plant reproductive capability:
Not limited.

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