Laserfiche WebLink
Chris Tecklenburg,Ecological Site Specialist,Hutchison,KS <br /> Site Authors <br /> Harvey Sprock,Ben Berlinger,Scott Woodall,James Borchert,Dave Sharman,Terri Skadeland,Dave Cook,Chuck Ring <br /> Quality Assurance <br /> Provisional Status Verfied by David Kraft(5/31/2018) <br /> Reference Sheet <br /> Author(s)/participant(s):Harvey Sprock,Daniel Nosal <br /> Contact for lead author:Harvey Sprock,Area Rangeland Management Specialist,Greeley,CO <br /> Date: 1/11/2005 MLRA:067B Ecological Site:Sandy Plains R067BY024CO This must be verified based on soils and <br /> climate(see Ecological Site Description).Current plant community cannot be used to identify the ecological site. <br /> Composition(indicators 10 and 12)based on: X Annual Production, Foliar Cover, Biomass <br /> Indicators.For each indicator,describe the potential for the site.Where possible,(1)use numbers,(2)include expected range of values for <br /> above-and below-average years for each community and natural distrurbance regimes within the reference state,when appropriate and(3) <br /> cite data.Continue descriptions on separate sheet. <br /> 1. Number and extent of rills:None <br /> 2. Presence of water flow patterns:Typically none to slight.If present,are broken,irregular in appearance or discontinuous with <br /> numerous debris dams or vegetative barriers. <br /> 3. Number and height of erosional pedestals or terracettes: Pedestalled plants caused by wind or water erosion would be minor. <br /> 4. Bare ground from Ecological Site Description or other studies(rock,litter,standing dead,lichen,moss,plant canopy are not <br /> bare ground):3%or less bare ground,with bare patches ranging from 3-5 inches in diameter.Prolonged drought or wildfire events will <br /> cause bare ground to increase upwards to 5-10%with bare patches ranging from 8-12 inches in diameter. <br /> 5. Number of gullies and erosion associated with gullies:None <br /> 6. Extent of wind scoured,blowouts and/or depositional areas:A minor amount of wind scouring may occur on naturally disturbed <br /> areas.Fire or extended drought can exacerbate the appearance.Typically,wind scouring should be insignificant. <br /> 7. Amount of litter movement(describe size and distance expected to travel):Litter should be uniformly distributed with little <br /> movement.On steep slopes or knolls,litter may move from a few inches to 1-2 feet depending on intensity of wind/rainfall event. <br /> 8. Soil surface(top few mm)resistance to erosion(stability values are averages-most sites will show a range of values): <br /> Stability class rating anticipated to be 3-5 in the interspaces at soil surface. <br /> 9. Soil surface structure and SOM content(include type and strength of structure,and A-horizon color and thickness):SOM <br /> ranges from 24%.A-horizon ranges from 0-6 inches.Soils are deep,dark brown,weak fine granular structure. <br /> 10. Effect on plant community composition(relative proportion of different functional groups)and spatial distribution on <br /> infiltration and runoff:Diverse grass,forb,shrub canopy and root structure reduces raindrop impact and slows overland flow <br /> providing increased time for infiltration to occur.Extended drought and/or wildfire may reduce canopy cover and litter amounts resulting <br /> in decreased infiltration and increased runoff on steeper slopes. <br /> 17 of 18 <br />