Key points are not available for this paper at this time.
Karen A. Harper, G. Peter Kershaw, Natural Revegetation on Borrow Pits and Vehicle Tracks in Shrub Tundra, 48 Years Following Construction of the CANOL No. 1 Pipeline, N.W.T., Canada, Arctic and Alpine Research, Vol. 28, No. 2 (May, 1996), pp. 163-171
Harper et al. (Wed,) studied this question.