Utilization of Mycorrhizae in the Reclamation of Cold Climate Mining Wastes.
Veith-DL; Horland-MR; Helm-DJ
Ch in Mining in the Arctic proc 1st Int Symp on Mining in the Arctic Fairbanks Ak 7/89 :12 pages
The Bureau of Mines is currently evaluating the use of mycorrhizae as an amendment to enhance plant survival and growth in the reclamation of cold climate mining wastes. Since mining wastes vary widely in their physical and chemical characteristics, and soil factors important to plant establishment depend on these characteristics, mycorrhizae can be used to alleviate stresses caused by the lack of proper conditions and lead to acceptable revegetation of the wastes. A Bureau-sponsored study on the selection and utilization of mycorrhizal fungi in the revegetation of iron mining wastes in northern Minnesota was conducted in the early 1980's. Ecologically adapted fungi were isolated and used to enhance survival and growth of pine trees, grasses, and legumes on cold climate iron mining spoils. The fungi survived the harsh environment and generally proved beneficial to revegetating cold climate mining wastes. Another Bureau-sponsored study on the use of on-site mycorrhizal inoculum for plant establishment on abandoned mined lands in Alaska began in the spring of 1988. The objectives are to evaluate the extent of mycorrhizal associations in disturbed, revegetated, and mature communities, and to explore the potential applications of mycorrhizal inoculation to improve plant survival on abandoned mined lands. The sites under study are described, as are the methods used to evalute mycorrhizae application and the 1-year results.
Ch. in Mining in the Arctic(proc. 1st Int. Symp. on Mining in the Arctic, Fairbanks, AK., 7/89