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v ESD: Salt Meadow— R067BY031 l <br /> United States Department of Agriculture <br /> Natural Resources Conservation Service <br /> Ecological site Description <br /> Section I: Ecological Site Characteristics <br /> Ecological Site Identification and Concept <br /> Site stage:Prgv aiori <br /> Prue;---ieask:I an ESD at the provisional status represents the lowest tier of documentation that is releasable to the public.It contains a grouping of soil <br /> units that respond similarly to ecological processes The ESD contains 1)enough information to distinguish it from similar and associated ecological <br /> sites and 2)a draft state and transition model capturing the ecological processes and vegetative states and acmmunity phases as they are currently <br /> conceptualized.The provisional ESD has undergone both quality control and quality assurance protocols.It is expected that the provisional ESD will <br /> continue refinement towards an approved status <br /> Site name:Sandy Bottomland <br /> I Arfemisia fildblia I Andropogon ha##-Calamovilfa longifolia <br /> (f sand sagebrush/sand bluestem-praine sandreed) <br /> Site type:Rangeland <br /> Site ID'kofi7BY031CO <br /> Major laird resourr a area(MLRA):06713-Central High Plains,Southern Para <br /> j <br /> r <br /> li 676.Eastern Colo dri <br /> MLRA 67B-Central High Plains,Southern Part is located in eastern Colorado.It is comprised of rolling plains and river valleys.Some <br /> Canyonlands occur in the southeast portion.The major rivers are the South Platte and Arkansas which flow from the Rocky Mountains to <br /> Nebraska and Kansas Other rivers in the MLRA include the Cache la Poudre and Republican The rivers have many tributaries.This <br /> ecological site is traversed by 1-25,1-70 and 1-76,and U.S.Highways 50 and 287,Major land uses include 54%rangeland,35%cropland, <br /> and 2%pasture and hayland Urban and developed open space,and miscellaneous land occupy approximately 9%of the remainder Cities <br /> in this area include Fort Collins,Greeley,Steeling,and Denver.Other caties include Limon,Cheyenne Wells,and Springfield Land <br /> ownership is mostly private.Federal lands include Pawnee and Comanche National Grasslands(U.S Forest Service),Sand Creek <br /> Massacre National Historic Site(National Park Service),and Rocky Mountain Arsenal National Wildlife Refuge(U.S.Fish&Wildlife <br /> Service).State Parks include Cherry Creek and Chatfield Reservoirs,and Barr and Jackson Lakes. <br /> This region is periodically affected by severe drought,including the historic`Dust Bowl'of the 1930s Dust storms may form during drought <br /> years,in windy periods.Elevations range from <br /> 3,400 to 6,000 feet.The Average annual precipitation ranges from 14 17 inches per year,and ranges from 13 inches to over 18 inches, <br /> depending on location.Precipitation occurs mostly during the growing season,often during rapidly developing thunderstorms Mean annual <br /> air temperature(MAAT)is 48-52`F.Summer temperatures may exceed 100°F.Winter temperatures may be sub-zero,and snowfall varies <br /> 8 <br />