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<br />b. Annual Forage Production <br />Annual production of this area was estimated <br />by the Soil Conservation Service to be 2,500 pounds of air- <br />dry forage during favorable years, 2,000 pounds during <br />median years and 1,500 pounds of foraye duriny unfavorable <br />years. Precipitation during the past two years has been <br />substantially bclo~v normal. Total production obtained <br />during the sununcr of 1977 revealed that 700 pounds of air- <br />dry forage ~oere present on the reclaimed site. Although <br />this figure is lower than pre-mining production figures, it <br />must be pointed out that several factors help explain this <br />low value. Precipitation in 1976 was the driest year in <br />nearly ten years and precipitatio~z for 1977 was the-driest <br />duriny the previous 50 years in this area. <br />Aside from the climatic conditions, two <br />biotic constraints acted on the seeded stand to lower <br />overall plant production. Due to the mild winters encountered <br />over the past two years, abnormally high populations of <br />rabbits and rodents, speci-fically pocket gophers, have <br />almost totally decimated the vegetation on this site. <br />Since this area is unique ir. the fact that it <br />is an island of lush green forage nearly surrounded by d_y <br />and probably overgrazed lands, such conditions are to be <br />expected. It is unlikely that any suitable control measures <br />can be implemented to avoid this excessively high and <br />unregulated form of grazing. <br />c. Plant Density Counts <br />In the field of range management, evaluation <br />of seeded stands is often determined based on the number of <br />plants sampled per square foot. Studies in the Intermou-tain <br />Region in the eleven to thirteen-inch precipitation zone <br />stands were rated excellent when. 0.75 or more plants per <br />square foot were sampled. In C]ortheastern Colorado, see~ings <br />are considered successful when one or more plants were <br />established per two feet of row, twc years after seeding. <br />Density counts taken on this site by Energy Fuels indica~e <br />the overall density of the entire site in 1977 was 4.02 <br />plants per square foot. Definitely, this figure indicates <br />that the stand has become more than adequately stocked wren <br />judged by the criteria utilized in range reseeding. <br />In summary, the standards that have been developed over <br />the past 100 years of range reseeding research indicate that <br />reclamation has been completed on this site in spite of <br />soil, rodent and drought problems encountered and, there- <br />fore, the request made by Energy Fuels to obtain a final <br />bond release from this area should be granted. <br />