The role of erosion by water in the UK is considered. A summary of available data describing water erosion is presented providing insights into rates of erosion from the hillslope scale to the large catchment scale. Evidence suggests that soil erosion rates in excess of acceptable thresholds occur on a wide range of soils and under a wide range of land uses throughout the country. Given the recent shift towards erosion modelling and away from erosion monitoring, discussion of the quality of existing available observed data in the context of model evaluation is made. Much quality data exist in the UK to describe erosion by water, but it is argued here that few datasets provide the necessary detail with which to evaluate model performance accurately, especially when the description of the spatial heterogeneity of soil loss is a goal. Furthermore, the paradox between data collection (to improve models) and erosion modelling (to replace data collection) is highlighted as an issue that must be addressed within the discipline if full use of datasets and improvement of models is to be made.
Abrahart, R. J., Kirkby, M. J. and McMahon, M. L. 1994: MEDRUSH - a combined geographical information system and large scale distributed process model. Proceedings of the 2nd national conference on GIS research, Leicester, UK, 66-76.
2.
Al-ansari, N. A., Al-Jabbari, M. and McManus, J. 1977: The effect of farming upon solid transport in the River Almond, Scotland. Proceedings of the symposium on erosion and solid matter transport in inland waters. International Association of Scientific Hydrologists Red Book Volume 122, 118-125.
3.
Arden-Clarke, C. and Evans, R.1990: Soil erosion and conservation in the United Kingdom. In Pimentel, D., editor, World soil erosion and conservation. Cambridge: Cambridge University Press.
4.
Beasley, D. B., Huggins, L. F. and Monke, E. J.1980: ANSWERS: a model for watershed planning. Transactions of the American Society of Agricultural Engineers23, 939-944.
5.
Boardman, J.1988a: Public policy and soil erosion in Britain. In Hooke, J. M., editor, Geomorphology in environmental planning. Chicester: Wiley, 33-50.
6.
Boardman, J.1988b: Severe erosion on agricultural land in East Sussex, UK October 1988. Soil Technology1, 333-348.
7.
Boardman, J.1990a: Soil erosion in Britain, costs, attitudes and policies. In Social audit paper 1. Education Network for Environment and Development.
8.
Boardman, J.1990b: Soil erosion on the South Downs: a review. In Boardman, J., Foster, I. D. L. and Dearing, J., editors, Soil erosion on agricultural land. Chicester: Wiley, 87-105.
9.
Boardman, J. and Evans, R.1994: Soil erosion in Britain: a review. In Rickson, R. J., editor, Conserving soil resources: European perspectives. Wallingford: CAB International.
10.
Boardman, J. and Favis-Mortlock, D. T.1993: Simple methods of characterising erosive rainfall with reference to the South Downs, southern England. In Wicherek, S., editor, Farm land erosion: In temperate plains environment and hills. Amstodam: Elsevier.
11.
Boardman, J. and Robinson, D.1985: Soil erosion, climatic vagary and agricultural change on the Downs around Lewes and Brighton. Applied Geography5, 243-258.
12.
Brazier, R.E. 2000: An investigation into a GIS based approach for modelling soil erosion in England and Wales. PhD Thesis, Department of Environmental Science, Lancaster University, UK.
13.
Brazier, R. E., Beven, K. J., Freer, J. and Rowan, J. S.2000. Equifinality and uncertainty in physically-based soil erosion models: application of the GLUE methodology to WEPP - The Water Erosion Prediction Project for sites in the UK and US. Earth Surface Processes and Landforms25, 825-845.
14.
Brazier, R. E., Beven, K. J., Anthony, S. and Rowan, J. S.2001a: Implications of complex model uncertainty for the mapping of hillslope scale soil erosion predictions. Earth Surface Processes and Landforms26, 1333-1352.
15.
Brazier, R. E., Rowan, J. S., Quinn, P. and Anthony, S.2001b: Towards an MIR (Minimum Information Requirement) approach to modelling on-site soil loss at the National scale. Catena42, 59-79.
16.
Brazier, R. E., Parsons, A. J., Wainwright, J. and Powell, D. M.2003: Observed controls of runoff and sediment yield in semi-arid environments from the hillslope to the catchment scale. Geophysical Research Abstracts, Volume 5. EGS-AGU-EUG Joint Assembly, Nice.
17.
Bridges, E. M. and Harding, D. M.1971: Micro-erosion processes and factors affecting slope development in the lower Swansea valley. In Brunsden, D., editor, Slopes: forms and processes. Institute of British Geographers Special Publication 3, 66-79.
18.
Butcher, D. P., Labadz, J. C., Potter, A. W. R. and White, P.1993: Reservoir sedimentation rates in the Southern Pennine region, UK. In McManus, J. and Duck, R. W., editors, Geo-morphology and sedimentology of lakes and reservoirs. Chicester: Wiley, 73-93.
19.
Cabelguenne, M., Jones, C. A., Marty, J. R., Dyke, P. T. and Williams, J. R.1990: Calibration and validation of EPIC for crop rotations in southern France. Agricultural Systems33, 153-171.
20.
Carling, P. A.1995: River Wyre salmon and sea trout spawning habitat restoration/creation. National Rivers Authority Publication APEM, 25-30.
21.
Catt, J. A.1992: Soil erosion on the Lower Green-sand at Woburn experimental farm, Bedford-shire - evidence, history and causes. In Bell, M. and Boardman, J., editors, Past and present soil erosion. Oxford: Oxbow monograph.
22.
Catt, J. A., Quinton, J. N., Rickson, R. J. and Styles, P. D. R.1994: Nutrient losses and crop yields in the Woburn erosion reference experiment. In Rickson, R. J., editor, Conserving soil resources: European perspectives. Wallingford: CAB International.
23.
Chambers, B. J. and Garwood, T. W. D.2000: Monitoring of water erosion on arable farms in England and Wales 1990-1994. Soil Use and Management16, 93-99.
24.
Colbourne, G. J. N. and Staines, S. J.1985: Soil erosion in south Somerset. Journal of Agricultural Science104, 107-112.
25.
Crisp, D. T. and Carling, P. A.1989: Observations on sitings, dimensions and structure of salmonid redds. Journal of Fisheries Biology34, 119-134.
26.
Dickinson, W. T. and Rudra, R. P.1990: GAMES (Guelph model for evaluating the effects of agricultural management systems on erosion and sedimentation) user’s manual. Version 3. School of Engineering, University of Guelph, Ontario.
27.
Drake, N. A., Zhang, X., Berkhout, E., Bonifacio, R., Grimes, D. I. F., Wainwright, J. and Mulligan, M.1999: Modelling soil erosion at global and regional scales using remote sensing and GIS techniques. In Atkinson, P. M. and Tate, N. J., editors, Advances in remote sensing and GIS analysis. Chichester: Wiley.
28.
Duck, R. W. and McManus, J.1990: Relationships between catchment characteristics, land use and sediment yield in the midland valley of Scotland. In Boardman, J., Foster, I. D. L. and Dearing, J. A., editors, Soil erosion on agricultural land. Chichester: Wiley.
29.
Duck, R. W. and McManus, J.1994: A long-term estimate of bedload and suspended sediment yield derived from reservoir deposits. Journal of Hydrology159, 365-373.
30.
Dunne, T. 1984: The prediction of erosion in forests. In O’Loughlin, C. L. and Pearce, A. J. editors, Symposium on the effects of forest land use on erosion and slope stability. 7-11 May 1984. Environment and Policy Institute, Hawaii University, Honolulu, 3-11.
31.
Evan, R.1971: The need for soil conservation. Area3(1), 21-23.
32.
Evan, R.1981: Potential soil and crop losses in the UK. In Soil and crop loss - developments in erosion control. Soil and Water Management Association/Royal Agricultural Association of England, Stoneleigh.
33.
Evan, R.1988: Water erosion in England and Wales 1982-1984. Survey and Land Research Centre, Silsoe: Cranfield University.
34.
Evan, R.1990a: Water erosion in British farmer’s fields - some causes, impacts, predictions. Progress in Physical Geography14, 199-219.
35.
Evan, R.1990b: Soils at risk of accelerated erosion in England and Wales. Soil Use and Management6, 125-131.
36.
Evan, R.1993: Extent, frequency and rates of rilling of arable land in England and Wales. In Wicherek, S., editor, Farm land erosion: in temperate plains environment and hills. Amsterdam: Elsevier, 177-190.
37.
Evan, R.1995: Some methods of directly assessing water erosion of cultivated land - a comparison of measurements made on plots and fields. Progress in Physical Geography19(1), 115-129.
38.
Evans, R. and Cook, S.1986: Soil erosion in Britain. SEESOIL3, 28-58.
39.
Favis-Mortlock, D.T. 1994: Use and abuse of soil erosion models in southern England. PhD Thesis, University of Brighton, Brighton, UK.
40.
Favis-Mortlock, D. T., Quinton, J. N. and Dickinson, W. T.1996: The GCTE validation of soil erosion models for global change studies. Journal of Soil and Water Conservation51(5), 397-402.
41.
Fisher, O.1868: On the denudations of Norfolk. Geological Magazine5, 544-558.
42.
Foster, I. D. L., Grew, R. and Dearing, J. A.1990: Magnitude and frequency of sediment transport in agricultural catchments: a paired lake-catchment study in midland England. In Boardman, J., Foster, I. D. L. and Dearing, J. A. editors, Soil erosion on agricultural land. Chichester: Wiley.
43.
Fullen, M. A.1992: Erosion rates on bare loamy soils in east Shropshire, UK. Soil Use and Management8, 157-162.
44.
Fullen, M. A. and Reed, A. H.1986: Rainfall, runoff and erosion on bare soils in east Shrop-shire, England. Earth Surface Processes and Landforms11, 413-425.
45.
Geikie, A.1868: On denudation now in progress. Geological Magazine5, 249-254.
46.
Hall, D. G.1967: The pattern of sediment movement in the River Tyne. Institute of the Association of Scientific Hydrologists75, 117-142.
47.
Harvey, A. M.1974: Gully erosion and sediment yield in the Howgills, Westmorland. In Gregory, K. J. and Walling, D. E., editors, Fluvial processes in instrumented watersheds. IBG Special Publication No. 6, 45-58.
48.
Hoskins, W. G.1970: The making of the English landscape. Harmondsworth: Penguin.
49.
Imeson, A. C.1971: Heather burning and soil erosion on the North Yorkshire Moors. Journal of Applied Ecology8, 532-537.
50.
Jetten, V., de Roo, A. and Favis-Mortlock, D.1999: Evaluation of field and catchment-scale soil erosion models. Catena37, 521-541.
51.
Kirkby, M. J.1987: Models in physical geography. In Clark, M. J., Gregory, K. J. and Gurnell, A. M., editors, Horizons in physical geography. Basingstoke: Macmillan.
52.
Kirkby, M. J.1998: Modelling across scales: the MEDA LUS family of models. In Boardman, J. and Favis-Mortlock, D., editors, Global change: modelling soil erosion by water. London: Springer-Verlag.
53.
Kirkby, M. J. and Cox, N. J.1995: A climatic index for soil erosion potential (CSEP) including seasonal and vegetation factors. Catena25, 333-352.
54.
Kirkby, M. J., Baird, A. J., Lockwood, J. G., McMahon, M. D., Mitchell, P. J., Shao, J., Sheehy, J. E., Thornes, J. B. and Woodward, F. I.1993: MEDALUS project A1: physically based process models: final report (part of MEDALUS 1 final report). In Thornes, J. B., editor, MEDALUS 1 final report. http://www.kcl.ac.uk/kis/schools/hums/geog/medalus/medalus.html (last accessed 21 April 2004).
55.
Laflen, J. M., Lane, L. J. and Foster, G. R.1991: WEPP. A new generation of erosion prediction technology. Journal of Soil and Water Conservation46(1), 34-38.
56.
Lane, L. J. and Nearing, M. A.1989: USDA-water erosion prediction project: hillslope profile model documentation. Report No. 2, W. Lafayette IN: USDA National Soil Erosion Research Laboratory.
57.
Ledger, D. C., Lovell, J. P. B. and McDonald, A. T.1974: Sediment yield studies in upland catchment areas in south-east Scotland. Journal of Applied Ecology11, 201-206.
58.
Lewin, J., Cryer, R. and Harrison, D. I.1974: Sources for sediments and solutes in mid-Wales. In Gregory, K. J. and Walling, D. E., editors, Fluvial processes in instrumented water-sheds. Institute of British Geographers Special Publication 6, 73-85.
59.
McManus, J. and Duck, R. W.1985: Sediment yield estimated from reservoir siltation in the Ochil hills, Scotland. Earth Surface Processes and Landforms10, 193-200.
60.
Molino, B., Greco. M. and Rowan, J. S.2001: Sediment routing into reservoirs: a numerical simulation of the sedimentation history of Abbeystead Reservoir, UK. Water Resources Management15, 109-122.
61.
Morgan, R. P. C.1980: Soil erosion and conservation in Britain. Progress in Physical Geography4, 25-47.
62.
Morgan, R. P. C.1985a: Assessment of soil erosion risk in England and Wales. Soil Use and Management1, 127-131.
63.
Morgan, R. P. C.1985b: Soil erosion measurement and soil conservation research in cultivated areas of the UK. The Geographical Journal151(1), 11-20.
64.
Morgan, R. P. C. and Rickson, R. J.1990: Issues on soil erosion in Europe: the need for a soil conservation policy. In Boardman, J., Foster, I. D. L. and Dearing, J. A., editors, Soil erosion on agricultural land. Chicester: Wiley, 591-603.
65.
Morgan, R. P. C., Quinton, J. N. and Rickson, R. J.1994: Modelling methodology for soil erosion assessment and conservation design: the EUROSEM approach. Outlook on Agriculture23(1), 5-9.
66.
Nearing, M. A.1998: Why soil erosion models over-predict small soil losses and under-predict large soil losses. Catena32, 15-22.
67.
Nearing, M. A.2003: Soil erosion and conservation. In Wainwright, J. and Mulligan, M., editors, Environmental modelling: finding simplicity in complexity. Chichester: John Wiley and Sons.
68.
Nearing, M. A., Foster, G. R., Lane, L. J. and Finkner, S. C.1989: A process-based soil erosion model for USDA - water erosion prediction project technology. Transactions of the American Society of Agricultural Engineers32(5), 1587-1593.
69.
Nearing, M. A., Govers, G. and Norton, L. D.1999: Variability in soil erosion data from replicated plots. Soil Science Society of America Journal63, 1829-1835.
70.
Newson, M. D.1981: Mountain streams. In Lewin, J., editor, British rivers. London: Allen and Unwin, 59-89.
71.
Newson, M. D. and Leeks, G. J.1985: Mountain bedload yields in the United Kingdom: further information from undisturbed fluvial environments. Earth Surface Processes and Landforms10, 413-416.
72.
Oreskes, N., Shrader-Frechette, K. and Belitz, K.1994: Verification, validation, and confirmation of numerical models in the Earth Sciences. Science263(5147) 641-646.
73.
Poesen, J., Vandaele, K. and van Wesemael, B.1996: Contribution of gully erosion to sediment production in cultivated lands and rangelands. International Association of Hydrological Science (IAHS) Publication 236, 251-266.
74.
Quine, T. A.1999: Use of caesium-137 data for validation of spatially distributed erosion models: the implications of tillage erosion. Catena37, 415-430.
75.
Quine, T. A. and Walling, D. E.1991: Rates of soil erosion on arable fields in Britain. Soil Use and Management7, 169-176.
76.
Quinton, J.N. 1994: The validation of physically-based erosion models with particular reference to EUROSEM. PhD Thesis, Cranfield University.
77.
Quinton, J.N.1997: Reducing predictive uncertainty in model simulations: a comparison of two methods using the European Soil Erosion Model (EUROSEM). Catena30, 101-117.
78.
Reed, A. H.1983: The erosion risk of compaction. Soil and Water11, 29-33.
79.
Reed, A. H.1986: Erosion risk on arable soils in parts of the west midlands. SEESOIL3, 84-94.
80.
Rejman, J. and Usowicz, B.2002: Evaluation of soil-loss contribution areas on loess soils in southeast Poland. Earth Surface Processes and Landforms27, 1415-1423.
81.
Robinson, D. A. and Boardman, J.1988: Cultivation practice, sowing season and soil erosion on the South Downs, England: a preliminary study. Journal of Agricultural Science110, 169-177.
82.
Robson, A. J. and Neal, C.1997: A summary of regional water quality for Eastern UK rivers. The Science of the Total Environment194/195, 15-37.
83.
Rowan, J. S., Goodwill, P. and Greco, M.1995: Temporal variability in catchment sediment yield determined from repeated bathymetric surveys: Abbeystead Reservoir, UK. Physics and Chemistry of the Earth20(2), 199-206.
84.
Sharpley, A. N. and Williams, J. R.1990: EPIC - Erosion Productivity Impact Calculator. 1. Model Documentation. U.S. Department of Agriculture Technical Bulletin No. 1768.
85.
Sharpley, A., Foy, B. and Withers, P.2000. Practical and innovative measures for the control of agricultural phosphorus losses to water. Journal of Environmental Quality29, 1-9.
86.
Simpson, E. A.1980: The harmonization of the monitoring of the quality of rivers in the United Kingdom. Hydrological Science Bulletin25, 13-23.
87.
Skinner, R. J. and Chambers, B. J.1996: A survey to assess the extent of soil water erosion in lowland England and Wales. Soil Use and Management12, 214-220.
88.
Speirs, R. B. and Frost, C. A.1985: Soil erosion in the south-east of Scotland. Research and Development in Agriculture2, 161-167.
89.
Speirs, R. B. and Frost, C. A.1987: Soil water erosion on arable land in the United Kingdom. Research and Development in Agriculture4, 1-11.
90.
Stott, T. A. and Duck, R. W.1988: A hammer seismic refraction survey of a Scottish lacustrine delta used to estimate sediment yield. Quaternary Newsletter54, 1-8.
91.
Verstraeten, G. and Poesen, J.2000: Estimating trap efficiency of small reservoirs and ponds: methods and implications for the assessment of sediment yield. Progress in Physical Geography24(2), 219-251.
92.
Wainwright, J., Parsons, A. J. and Abrahams, A.2000: Plot-scale studies of vegetation, overland flow and erosion interactions: case studies from Arizona and New Mexico. Hydrological Processes14, 2921-2943.
93.
Proceedings of the International Symposium, American Society of Agricultural Engineers, St Joseph MI, 607-610.
94.
Wainwright, J., Parsons, A. J., Michaelides, K., Powell, D. M. and Brazier, R. E.2003: Linking short- and long-term soil-erosion modelling. In Lang A., editor, Modelling approaches for the Rhein LUCIFS research framework. Berlin: Springer Verlag.
95.
Walling, D. E. and Quine, T. A.1990: Use of caesium-137 to investigate patterns and rates of soil erosion on arable fields. In Boardman, J., Foster, I. D. L. and Dearing, J. A., editors, Soil erosion on agricultural land. Chicester: Wiley, 33-53.
96.
Walling, D. E. and Quine, T. A.1991: Use of caesium-137 measurements to investigate soil erosion on arable fields in the UK: potential applications and limitations. Journal of Soil Science42, 147-165.
97.
Walling, D. E. and Webb, B. W.1987: Suspended load in gravel bed rivers: UK experience. In Thorne, C. R., Bathurst, J. C. and Hey, R. D., editors, Sediment transport in gravel-bed rivers. Chicester: Wiley, 767-782.
98.
White, G.1788: The natural history of Selbourne 2. J. and A. Arch.
99.
Wischmeier, N. P. and Smith, D. D.1978: Predicting rainfall erosion losses, a guide to conservation planning. USDA Agricultural Handbook No. 537.
100.
Withers, P. J. A., Davidson, I. A. and Foy, R. H.2000: Prospects for controlling non-point phosphorus loss to water: a UK perspective. Journal of Environmental Quality29, 167-175.
101.
Young, R. A., Onstad, C. A., Borsch, D. D. and Anderson, W. P.1989: AGNPS: A nonpoint-source pollution model for evaluating agricultural watersheds. Journal of Soil and Water Conservation44(2), 168-173.
102.
Zhang, X. C., Nearing, M. A., Risse, L. M. and McGregor, K. C.1996: Evaluation of WEPP runoff and soil loss predictions using natural runoff plot data. Transactions of the American Society of Agricultural Engineers39(3), 855-863.
103.
Zhang, X., Drake, N. A. and Wainwright, J.2002: Scaling land-surface parameters for global scale soil erosion estimation. Water Resources Research38(10).
