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- W2501436581 abstract "Aboveground biomas and forage production from native range and adjacent reclaimed stripmined land were measured in 1977. On 2 of the 4 native range transects the aboveground biomass was greater than on reclaimed areas, largely due to big sagebrush and mat-forming species. Forage production, def’ined IS the vegetation consumed by domestic grazing animals on properly grazed range, was equal to or greater on the reclaimed land than on adjoining native range. Reclamation of stripmined lands is required by both the Wyoming Department of Environmental Quality and by recently (1977) enacted federal legislation. In both instances “production”of vegetation equal to, or greater than, that of the pre-mined condition is one of the requirements of the laws and regulations promulgated by the enforcement agencies. Interpretation of the term production is variable. To some it means total aboveground biomass regardless of whether or not it is usuable by grazinganirnals,and to othersit carries the connotation of “forage” that can be utilized. During the summer of 1977 a study was initiated near Glenrock, Wyo., to compare biomass and “forage” production from undisturbed native range with that from adjacent lands which had been reclaimed after stripmining for coal production. Description of the Area The study area lies near the southern edge of the Powder River Basin. The native range is quite variable with some areas supporting almost pure stands of herbaceous species and others with variable stands of shrubs (primarily big sagebrush, Artemisia tridentata) and succulents or mat-forming species such as plains pricklypear (Opuntiapolyacantha) and hooker sandwort (Arenaria hookeri). The most common vegetation type is sagebrush-grass and this type was selected for sampling to determine aboveground biomass and “forage” production. In accordance with Wyoming laws, rules, and regulations, the topsoil is removed from the land prior to mining and is then spread over reshaped soil and seeded to reclaim the land to its previous major use, which in this study was for grazing of domestic livestock. After the mining operation has progressed for a few years, there is a new acreage of mined-out land to be reclaimed each year. Sometimes the land to be reclaimed is ready for seeding in the fall and at other times it is not ready for seeding until spring. Four areas of reclaimed land were sampled in this study. Area A was seeded in the spring of 1973 with a mixture of 9 lb of Fairway crested wheatgrass (Agropyron cristatum). 3 lb of western wheatgrass (Agropyron smithii), and 3 lb of thickspike wheatgrass (Agropyron dasystachyum) per acre. Five growing seasons had Author is Professor Emeritus Division of Range Management, College of Agricultore, University of Wyoming, Laramie 82071 Manuscript received December I I, 1980. elapsed prior to sampling. Areas B, C, and D were all seeded with 6 lb of Fairway crested wheatgrass, 6 lb of Nordan crested wheatgrass (Agropyron desertorum) and 3 lb each of western wheatgrass and thickspike wheatgrass per acre. From these figures it may be noted that the 1973 seeding was 60% and the 1975 seedings were 67% introduced species. Areas B and C were seeded in the fall of 1975 and only 2 growing seasons had elapsed prior to sampling. Area D was seeded in the spring of 1974, thus having completed 3 growing seasons prior to sampling." @default.
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- W2501436581 date "1982-11-01" @default.
- W2501436581 modified "2023-09-25" @default.
- W2501436581 title "Biomass and Forage Production from Reclaimed Stripmined Land and Adjoining Native Range in Central Wyoming" @default.
- W2501436581 doi "https://doi.org/10.2307/3898257" @default.
- W2501436581 hasPublicationYear "1982" @default.
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