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Effects of subsoiling and associated incorporation of fertilizer on soil rehabilitation after opencast mining for coal

Published online by Cambridge University Press:  27 March 2009

J. Scullion
Affiliation:
University College of Wales, Aberystwyth, Field Laboratory, 23 Plasgwyn Road, Penygroes, Llanelli, Dyfed SA14 7RY, UK
A. R. A. Mohammed
Affiliation:
University College of Wales, Aberystwyth, Field Laboratory, 23 Plasgwyn Road, Penygroes, Llanelli, Dyfed SA14 7RY, UK

Summary

A trial was set up in South Wales in 1980 on land replaced in 1972 after opencast coal mining, to assess the effects on soil rehabilitation of regular subsoiling, through an established sward, with and without incorporation of a ‘semi-organic’ fertilizer into subsoiling slots. Treatments were assessed on the basis of yield, soil structure indices, root and organic contents and earthworm population densities. Apart from yields, data are for the eighth year of the experiment (1987), 18 months after the fourth programme of treatments.

Treatments did not markedly affect productivity, although it tended to be higher with subsoiling and fertilizer incorporation. Subsoiling had little effect on root and organic content, but fertilizer incorporation increased the latter, particularly at depth. Earthworm population densities were markedly higher on subsoiled areas, the increase in the deeper burrowing species Aporrectodea caliginosa being largest. Fertilizer incorporation increased abundance of Lumbricus rubellus, but had little effect on other species. Subsoiling reduced surface wetness, but did not result in any significant improvement in structure. Fertilizer incorporation reduced clay dispersion at depth and, with subsoiling, also increased pore space.

Treatment responses in term of soil structure were not large, but the incorporation of fertilizer did markedly accelerate structure rehabilitation at depth. Subsoiling alone contributed to land rehabilitation by controlling surface wetness and encouraging an increase in earthworm populations.

Type
Crops and Soils
Copyright
Copyright © Cambridge University Press 1991

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References

REFERENCES

Adams, W. A. (1973). The effect of organic matter on the bulk and true densities of some uncultivated podzolic soils. Journal of Soil Science 24, 1017.Google Scholar
Armstrong, M. J. & Bragg, N. C. (1984). Soil physical parameters and earthworm populations associated with opencast coal workings and land restoration. Agriculture, Ecosystems and Environment 11, 131143.CrossRefGoogle Scholar
Bragg, N. C. (1983). Restoring land to agriculture. Soil and Water 11 (4), 2123.Google Scholar
Bouche, M. B. & Gardner, R. H. (1984). Earthworm functions. VIII. Population estimation techniques. Revue d’ Ecologie et de Biologie du Sol 21, 3763.Google Scholar
Childs, E. C. & Youngs, E. (1958). The use of moisture characteristic curves in assessing the stability of opencast coal sites. Proceedings of the International Symposium on Soil Structure, Ghent, pp. 415421.Google Scholar
Davies, C. (1973). Soil restoration after industrial exploitation. In Aspects of Current Use and Misuse of Soil Resources. Publication of Welsh Soils Discussion Group, No. 14 (Ed. Jenkins, D.) pp. 109115. Bangor: University College of North Wales.Google Scholar
Davison, D. J. (1971). Restoration and reclamation of opencast sites. Colliery Guardian 219, 94102.Google Scholar
Douglas, J. T., Jarvis, M. G., Howse, R. & Goss, M. J. (1986). Structure of a silty soil in relation to management. Journal of Soil Science 37, 137152.CrossRefGoogle Scholar
Drew, M. C. (1975). Comparison of the effects of a localized supply of phosphate, nitrate, ammonium and potassium on the growth of the seminal root system and the shoot in barley. New Phytologist 75, 479490.CrossRefGoogle Scholar
Edwards, C. A. (1983). Earthworm ecology in cultivated soils. In Earthworm Ecology (Ed. Satchell, J. E.), pp. 123138. London: Chapman & Hall.Google Scholar
El-Karouri, M. O. H. & Gooderham, P. T. (1977). The effect of soil physical conditions and nitrogen fertilizer on the yield of Italian ryegrass. Journal of Agricultural Science, Cambridge 88, 743751.CrossRefGoogle Scholar
Fitton, A., Gibbons, J., Precious, G., Webber, J. & Theobald, G. H. (1958). Experiments on the rehabilitation of opencast coal sites. Experimental Husbandry 4, 5873.Google Scholar
Gerard, B. M. (1967). Factors affecting earthworms in pastures. Journal of Animal Ecology 27, 147157.Google Scholar
Gerard, B. M. & Hay, R. K. M. (1979). The effects on earthworms of ploughing, tined cultivation, direct drilling and nitrogen in a barley monoculture system. Journal of Agricultural Science, Cambridge 93, 147155.CrossRefGoogle Scholar
Hipps, N. A. & Hodgson, D. R. (1988). Residual effects of a slant-legged subsoiler on some soil physical conditions and the root growth of spring barley. Journal of Agricultural Science, Cambridge 110, 481489.CrossRefGoogle Scholar
Hunter, F. & Currie, J. A. (1956). Structural changes during bulk soil storage. Journal of Soil Science 7, 7579.CrossRefGoogle Scholar
Kerr, M. D. (1977). Comparison of crop yields using semiorganic and inorganic fertilizers. PhD thesis, University of Hull.Google Scholar
King, J. A. & Evans, E. J. (1987). The growth of winter wheat on restored land in response to drainage and nitrogen availability. Journal of the Science of Food and Agriculture 41, 97106.CrossRefGoogle Scholar
Kohnke, H. & Bertrand, A. R. (1956). Fertilizing the subsoil for better water utilization. Proceedings of the Soil Science Society of America 20, 581586.Google Scholar
Lee, K. E. (1985). Earthworms: their Ecology and Relationships with Soils and their Land Use. Sydney: Academic Press.Google Scholar
Lloyd, A. (1984). Soil management problems on opencast sites. Proceedings of the North of England Soils Discussion Group 19, 1935.Google Scholar
McEwen, J. & Johnston, A. E. (1979). The effects of subsoiling and deep incorporation of P and K fertilizers on the yield and nutrient uptake of barley, potatoes, wheat and sugar beet grown in rotation. Journal of Agricultural Science, Cambridge 92, 695702.CrossRefGoogle Scholar
Middleton, H. E. (1930). Properties of soil which influence soil erosion. Technical Bulletin, United States Department of Agriculture, No. 178Google Scholar
Piearce, T. G. (1978). Gut contents of some lumbricid earthworms. Pedobiologia 18, 153157.CrossRefGoogle Scholar
Piper, C. J. (1950). Soil and Plant Analysis. Adelaide: University of Adelaide.Google Scholar
Ramshaw, G. A. (1985). The effect of farming methods on the rehabilitation of former opencast coal mining land in South Wales. PhD thesis, University College of Wales, Aberystwyth.Google Scholar
Raw, F. (1959). Methods of sampling earthworm populations. Pedobiologia 9, 2025.Google Scholar
Rushton, S. P. (1986). Development of earthworm populations on pasture land reclaimed from open-cast coal mining. Pedobiologia 29, 2732.CrossRefGoogle Scholar
Scullion, J. (1984). The assessment of experimental techniques developed to assist the rehabilitation of restored opencast coal mining land. PhD thesis, University College of Wales, Aberystwyth.Google Scholar
Scullion, J. & Mohammed, A. R. A. (1986 a). Field drainage experiments and design on former opencast coal mining land. Journal of Agricultural Science, Cambridge 107, 521528.Google Scholar
Scullion, J. & Mohammed, A. R. A. (1986 b). Cultivation and drainage performance on former opencast coal mining land. Soil Use and Management 2, 7983.CrossRefGoogle Scholar
Scullion, J., Mohammed, A. R. A. & Ramshaw, G. A. (1986). Statistical evaluation of drainage treatments in simple field trials with special reference to former opencast coal mining land. Journal of Agricultural Science, Cambridge 107, 515520.CrossRefGoogle Scholar
Scullion, J., Mohammed, A. R. A. & Richardson, H. (1988). Changes in earthworm populations following cultivation of undisturbed and former opencast coal mining land. Agriculture, Ecosystems and Environment 20, 289302.CrossRefGoogle Scholar
Sims, R. W. & Gerard, B. M. (1985). Synopses of the British Fauna (New Series) No. 31. Earthworms. Linnean Society of London.Google Scholar
Smith, L. P. (1976). The Agricultural Climate of England and Wales. MAFF Technical Bulletin, No. 35.Google Scholar
Soane, G. C, Goodwin, R. J., Marks, M. J. & Spoor, G. (1987). Crop and soil response to subsoil loosening, deep incorporation of phosphorus and potassium fertilizer and subsequent soil management on a range of soil types. Part 2. Soil structural conditions. Soil Use and Management 3, 123130.CrossRefGoogle Scholar
Standen, V., Stead, G. B. & Dunning, A. (1982). Lumbricidae populations in opencast reclamation sites and colliery soil heaps in County Durham. Pedobiologia 24, 6475.Google Scholar
Stewart, V. I., Scullion, J., Salih, R. O. & Al-Bakri, K. H. (1989). Earthworms and structure rehabilitation in subsoils and in topsoils affected by opencast mining for coal. Biological Agriculture and Horticulture 5, 325337.CrossRefGoogle Scholar
Stockdill, S. M. J. (1982). Effects of introduced earthworms on the productivity of New Zealand pastures. Pedobiologia 24, 2935.CrossRefGoogle Scholar
Tinsley, J. & Coutts, J. R. H. (1967). Aggregate stability determination to determine the true crumb structure. In West European Methods for Soil Structure Determinations, International Soil Science Society 1, (Ed. de Boodt, M.), p. 75. Ghent: Faculty of Agricultural Sciences.Google Scholar
Tomlinson, P. (1980). The agricultural impact of opencast coal mining in England and Wales. Minerals and Environment 78100.CrossRefGoogle Scholar
Troughton, A. (1961). Studies on the roots of leys and the organic matter and structure of the soil. Journal of Experimental Agriculture 29, 165174.Google Scholar
Wilkinson, B. (1962). Phosphate experiments on restored opencast coal soils. I. Effect of superphosphate application to grassland. Experimental Husbandry 7, 105121.Google Scholar