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- Title
THE MICRODISTRIBUTION OF AGROSTIS TENUIS ON COLLIERY SPOIL IN RELATION TO SPOIL CHEMICAL VARIABILITY.
- Authors
Tasker, A.; Chadwick, M. J.
- Abstract
Spoil samples were collected from five colliery spoil heaps in northern England. Relationships between the microdistribution of the grass Agrostis tenuis and seventeen spoil chemical characteristics were investigated. On very acid sites (mean pH < 4.0), vegetated spoil differed from bare spoil in having; (i) a higher pH, (ii) lower concentrations of Cu and Fe, (iii) higher concentrations of K. We conclude that these differences influence the microdistribution of A. tenuis, although the factors also varied in importance in different regions of each site. On less-acid sites (pH>4.0), there were no significant differences between vegetated and bare areas of spoil for any of the seventeen characteristics measured. However, when the samples were divided into more homogeneous groups, certain acid toxic regions were revealed from which A. tenuis was absent. Unmeasured physical factors may have been more important than chemical factors in most of the less acid sites.
- Subjects
ENGLAND; SPOIL banks; STRIP mining; EXCAVATION; AGROSTIS; GRASSES
- Publication
Journal of Applied Ecology, 1978, Vol 15, Issue 2, p551
- ISSN
0021-8901
- Publication type
Article
- DOI
10.2307/2402610