JEQ Journal of Natural Resources and Life Sciences Education
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Published in J Environ Qual 2:314-315 (1973)
© 1973 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Stabilizing Copper Mine Tailing Disposal Berms with Giant Bermudagrass1

A. D. Day and K. L. Ludeke2

ABSTRACT

Experiments were conducted in Arizona to compare two methods, vegetative plugging and broadcast seeding, of establishing giant bermudagrass (Cynodon dactylon var. ardius Harlan et de Wet) on copper mine tailing berms. Broadcast seeding resulted in less water erosion in the top 5 cm of soil 5 days after planting, but more plants were destroyed in the broadcast-seeded plots by wind-blown tailing 15 days after planting than were destroyed in plots established by the vegetative plugging method of planting. The plugging method of planting resulted in more vegetative cover 30 and 180 days after planting, and it resulted in more stabilized copper tailing berms than did broadcast seeding. Giant bermudagrass can be used effectively to provide vegetative cover, to stabilize copper mine tailing berms, and to reduce environmental pollution in the Southwest, and possibly in similar environments throughout the world.

Key Words: copper mining • copper milling • pollution • revegetation

NOTES

1 Contribution from the Dept. of Agronomy and Plant Genetics, Univ. of Arizona Tucson. 85721. Arizona Agr. Exp. Sta. Journal Paper no. 1965. Trade names used in this publication are for identification only and do not imply endorsement of products named or criticism of similar products not mentioned.

2 Agronomist, Arizona Agr. Exp. Sta., Univ. of Arizona; and Agronomist, Pima Mining Co., P. O. Box 7187, Tucson. 85713, respectively.

Received for publication July 14, 1972.




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Copyright © 1973 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.