Soil Erosion Network: Monitoring Metadata
South Downs, UK, 1982-91, Rendzina, Arable/Grazing, Water Erosion

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1 Contact person
1.1 Name Dr. J. Boardman
1.2 Address Environmental Change Unit, University of Oxford, 1a Mansfield Road, Oxford, OX1 3TB, UK
1.3 Tel +44 1865 281180
1.4 Fax +44 1865 281181
1.5 Email
1.6 Other researchers involved: None
2 Survey Details
2.1 Dates of erosion monitoring survey: 1982-91
2.1 Water/wind erosion? Water
2.3 Area monitored: South Downs, Southern England c. 36 km2 farmland
2.4 Character of area: Rolling chalk downland; thin rendzina soils (c.20 cm); arable and grazing l and; cool temperate oceanic climate
2.5 Frequency of monitoring: Varied depending on rainfall distribution; fields inspected c. 10x in winter; measurements 1-3x per season
2.6 What fraction of fields in the monitored area were included in the survey? Only fields that eroded
2.7 How were estimates of erosion made? Measurement of volume of rills and gullies; depth of fans
2.8 Were air photographs used? Available for some years but not relied upon
2.9 For each erosion site, information recorded: Location (National Grid Reference). Contributing area (ha - from map). Slope length (m - from map). Gradient (deg - from clinometer). Slope shape (convex etc. - from map). Erosion form (valleyside etc.). Volume soil moved (m3). Crop type. -Soil type. Management factors (wheel tracks etc.)


2.10 Data obtained from elsewhere:  

Rainfall responsible for erosion. Some soil samples taken and analysed

2.11 Data calculated from above information: Erosion rate (m3/ha). Timing of erosion (date)
2.12 Meterological station density and type: Five NRA manual daily rain gauges in area; one automatic gauge c. 2 km from area
2.13 Length of record of meterological data: Start of daily recording ranges from 1950 to 1975; one gauge closed 1988. Automatic gauge from 1990
3. Associated Work
3.1 Associated experimental or plot-based work: Plots 1985-86 (Robinson and Boardman, 1988); aggregate stability. (Blackman, 1992); Caesium-137 (e.g. Quine and Walling, 1993)
3.2 Associated modelling work: Rainfall Index (e.g. Boardman and Favis-Mortlock, 1993); GAMES. (Favis-Mortlock, 1994); GLEAMS. (Favis-Mortlock, 1994); EPIC (e.g. Favis-Mortlock et al., 1991) WEPP. (Favis-Mortlock, 1994)
4. Documentation
4.1 Published reports of the monitoring survey and/or results:
Boardman, J. (1984). Erosion on the South Downs. Soil and Water 12(1), 19-21.

Boardman, J. (1988). Severe erosion on agricultural land in East Sussex, UK, October 1987. Soil Technology 1, 333-348.

Boardman, J. (1990). Soil erosion on the South Downs: a review. In, Boardman, J., Foster, I.D.L. and Dearing, J.A. (eds), Soil Erosion on Agricultural Land, Wiley Chichester. pp. 87-105.

Boardman, J. (1992). Current erosion on the South Downs: implications for the past. In, Bell, M. and Boardman, J. (eds), Past and Present Soil Erosion, Oxbow Monograph 22, Oxbow Books, Oxford. pp. 9-19.

Boardman, J. (1993). The sensitivity of Downland arable land to erosion by water. In, Thomas, D.S.G. and Allison, R.J. (eds), Landscape Sensitivity, Wiley, Chichester. pp. 211-228.

Boardman, J., Ligneau, L., de Roo, A. and Vandaele, K. (1994). Flooding of property by runoff from agricultural land in North-Western Europe. Geomorphology 10, 183-196.

4.2 Other relevant publications:
Bell, M. (1983). Valley sediments as evidence of prehistoric land-use on the South Downs. Proceedings of the Prehistoric Society 49, 119-150.

Boardman, J. and Favis-Mortlock, D.T. (1993). Simple methods of characterizing erosive rainfall with reference to the South Downs, southern England. In, Wicherek, S. (ed.), Farmland Erosion in Temperate Plains, Environments and Hills, Elsevier, Amsterdam, The Netherlands. pp. 17-29.

Blackman, J.D. (1992). Seasonal variation in the aggregate stability of downland soils. Soil Use and Management 8(4), 142-150.

Favis-Mortlock, D.T. (1994). Use and Abuse of Soil Erosion Models in Southern England, Unpublished PhD Thesis, University of Brighton. 336 pp.

Favis-Mortlock, D.T., Evans, R., Boardman, J. and Harris, T.M. (1991). Climate change, winter wheat yield and soil erosion on the English South Downs. Agricultural Systems 37(4), 415-433.

Quine, T.A. and Walling, D.E. (1993). Use of caesium-137 measurements to investigate relationships between erosion rates and topography. In, Thomas, D.S.G. and Allison, R.J. (eds), Landscape Sensitivity, Wiley, Chichester. pp. 31-48.

Robinson, D.A. and Boardman, J. (1988). Cultivation practice, sowing season and soil erosion on the South Downs: a preliminary study. Journal Agricultural Science, Cambridge 10, 169-177.

Stammers, R. and Boardman, J. (1984). Soil erosion and flooding on downland areas. The Surveyor 164, 8-11.

5. Availability
5.1 Erosion/land use data: On request subject to GCTE policy
5.2 Meterological data: On request; however NRA source must be acknowledged
6. Other Information
6.1 Is the monitoring survey ongoing? No
6.2 Funding agency for the survey: Brighton Polytechnic (teaching salary); ICI for plot studies
6.3 Any other details:

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