APPCOR10262 - Laserfiche WebLink

Home Browse Search

equilibrium between the plants and site had been achieved. In the field of range management, evaluation of seeded stands is often dctermi.ncd based on the number of plants sampled per square foot. Studies in the Intermo~i^tain Region in the 11 to 13-inch precipitation zone stands we.e rated excellent when 0.75 or more plants per square foot were sampled. In Northeastern Colorado, seedings are considered successful when one or more plants were established per two feet of row, two years after seeding. Density counts taken on this site by bnergy Fuels indicate that tie stand has become more than adequately stocked when judge:: by the criteria utilized in range reseeding. range sites Conservation Soil Series Range Site Abor Silty Clay Loam Claypan Splitro Loam Mountain Loam Rbsher Very Fine Sandy Loam Salty Flats Buckley Silty Clay Luam Deep Clay Loam Optimum Ground Co-,-~r 350 35~ 350 _35 0~ ~n„r,~~ovez of the site in 1976 caas fourd to be 39 percent. Ground cover in 1977 was found to be_39.~__ percent, indicating that stability in cover seemed to ha~:e been achieved. C. Annual Forage Production Annual production for these range sites o:as estimated by the Soil Conservation Service to be as follc.~s: Production in Unfavorable Range Site Year Lbs/Acre Claypan 300 •E~ ~~"' !lountain Loam 1, 200 •~; ~~ r ;7 Salt Flats 500 , •~ Deep Clay Loam 1,500 ~ ~'-:% _~ii% • It was decided to compare production listed in an unfavorable year due to the fact that precipitaticn during the past two years has been substantially below normal. Precipitation in 1976 was .the driest year in the previous ten years and precipitation for 2977 was the driest during the previous SO years in this area. b. Plant Cover Pre-disturbance vegetative cover of the fcur occupying the site were estimated by the Soi_ Service to be: