Des Walling

Professor Des Walling
BA (Exeter), PhD (Exeter)

Reardon Smith Professor of Geography

Room: Amory 436 (SRIF)
Email: d.e.walling@exeter.ac.uk
Telephone: +44 (0) 1392 263345
Fax: +44 (0) 1392 263342

Broad research specialisms:

Hydrology and Fluvial Geomorphology

Biography

Des Walling is a Hydrologist with particular interests in the field of erosion and sediment yields and catchment sediment budgets. He has a BA in Geography and PhD in Geography (Hydrology), from the University of Exeter. He was formerly Assistant Lecturer, Lecturer, Reader in Physical Geography and Professor of Physical Geography at the University of Exeter, before being appointed Reardon Smith Professor of Geography in 1998. He is also a Visiting Professor at the Academia Sinica Institute of Mountain Hazards and Environments in Chengdu, China. He is a Chartered Geographer and a Certified Professional Hydrologist of the American Institute of Hydrology. He received the Back Award of the Royal Geographical Society in 1985 and its Victoria Medal in 2000, the Vollenweider Award of Environment Canada in 1990, and the President’s Prize of the British Hydrological Society in 1995. In 2007 he was the recipient of three further prestigious international awards, namely, the Linton Award of the British Society for Geomorphology, the International Hydrology Prize awarded jointly by IAHS, UNESCO and WMO and the Chien Ning Award of the World Association for Sedimentation and Erosion Research and the Chien Ning Foundation. He is a past President of the International Commission on Continental Erosion (ICCE) and the International Association of Sediment Water Science (IASWS) and he is currently President of the World Association for Sediment and Erosion Research (WASER) and Honorary President of the International Commission on Continental Erosion. He is a member of the River Basin Science cluster within the Environmental Processes and Change Research Group.

Des Walling is heavily involved in national and international scientific activities related to his research area. He is currently President of the World Association for Sediment and Erosion Research, a member of the Steering Committee of the UNESCO International Sediment Initiative, a member of the Advisory Council of the International Research and Training Center for Erosion and Sedimentation in Beijing, a member of the steering committee of the IGBP-PAGES LUCIFS project, which aims to investigate land use and climate impacts on fluvial systems over the period since the development of agriculture, a member of the International Coordinating Committee on Reservoir Sedimentation (ICCORES), a member of the International Atomic Energy Agency Coordinated Research Project on Soil Erosion Assessment and a member of the Bureau of IAHS. Nationally, he was a member of the Steering Committee of the NERC LOCAR Community Research Programme and is currently a member of the UK National Committee for International Hydrology and the NERC Peer Review College. He is an editor of the international journal Hydrological Processes and a member of the editorial board of Catena, Geografiska Annaler, Journal of Sediment Research, Geografisk Tidsskrift, Ecohydrology and Hydrobiology and the Journal of Mountain Environments. He is an author or editor of 30 books and he has published more than 460 scientific papers and contributions to edited volumes.

Research interests

Des Walling’s research interests lie in the field of hydrology and fluvial geomorphology. He has a particular interest in erosion and sediment yield, catchment sediment budgets, sediment tracing, water quality and diffuse source pollution and catchment management.

Des Walling’s main research activity currently focuses on land erosion and the suspended sediment loads of rivers, catchment sediment budgets and sediment-related environmental problems. Work in this area is being undertaken in local catchments in the Exe basin, in other areas of the UK and overseas. In addition, this interest extends to world rivers more generally and to global patterns of erosion and sediment yield and their recent response to environmental change. Catchment studies have focused on establishing sediment budgets and quantifying sediment sources, sinks and outputs. This work has necessitated the development of specialised field instrumentation and measurement techniques and particular emphasis has been placed on the use of environmental radionuclides (i.e. Caesium-137, Lead-210 and Beryllium-7) as sediment tracers. Exeter has one of the best equipped gamma spectrometry laboratories for environmental measurements in the world (15 HPGe detectors) and is in the forefront of developing the application of environmental radionuclides to quantifying erosion and deposition rates in catchments, to establishing overbank deposition rates on river floodplains and to fingerprinting suspended sediment sources. Such information is central to the establishment of catchment sediment budgets.

Recent and current research has attracted substantial funding from a number of sources including NERC, MAFF, DEFRA, DFID, the Environment Agency, Raleigh International and the European Union. NERC funding has included involvement in the LOIS, Environmental Diagnostics and LOCAR Community Programmes. Close collaborative links are maintained with researchers in China, Poland, Russia, Spain, Italy, Norway, Chile and Brazil.

Teaching responsibilities

None

Selected recent publications 2001 onwards

Books


Walling, D.E. and Horowitz, A. (Eds.) (2005) Sediment Budgets 1 – Proceedings International Symposium on Sediment Budgets, Foz do Iguacu, Brazil, April 2005. International Association of Hydrological Sciences Publication no. 291, IAHS Press, Wallingford, UK, 366p.

Horowitz, A. J. and Walling, D.E. (Eds.) (2005) Sediment Budgets 2 – Proceedings International Symposium on Sediment Budgets, Foz do Iguacu, Brazil, April 2005. International Association of Hydrological Sciences Publication no. 292, IAHS Press, Wallingford, UK, 342p.

Golosov, V., Belyaev, V. and Walling, D.E. (Eds.) (2004) Sediment Transfer through the Fluvial System. International Association of Hydrological Sciences Publication no.283. IAHS Press, Wallingford, viii + 238 pp.

Bogen, J., Fergus, T. and Walling, D.E. (Eds.) (2003) Erosion and Sediment Transport Measurement in Rivers: Technological and Methodological Advances. International Association of Hydrological Sciences Publication no.283. IAHS Press, Wallingford, viii + 238 pp.

Summer, W. and Walling, D.E. (Eds.) (2002) Modelling Soil Erosion, Sediment Transport and Sediment Yield. UNESCO International Hydrological Programme Technical Documents in Hydrology no. 60. UNESCO, Paris, iii +264pp.

Huntley, D., Leeks, G.J.L. and Walling, D.E. (Eds.) (2001) Land-Ocean Interaction: Measuring and Modelling Fluxes from River Basins to Coastal Seas. IWA, London, 300pp.

Papers in Refereed Journals:

Sepúlveda, A., Schuller, P. and Walling, D.E. (2007). Use of 7Be to document erosion associated with a short period of extreme rainfall. J. Environmental Radioactivity. doi:10.1016-j.jenvrad.2007.06.010

Zheng, J-J., He, X., Walling, D.E., Zhang, X., Flanagan, D. and Qi, Y-Q. (2007). Assessing Soil Erosion Rates on manually-tilled hillslopes in the Sichuan hilly basing using 137Cs and 210Pb ex measurements. Pedosphere 17(3), 273-283.

Porto, P., Walling, D.E., Callegari, G and Catona, F. (2006). Using fallout lead-210 measurements to estimate soil erosion in three small catchments in southern Italy. Water, Air and Soil Pollution: Focus 6, 657-667.

Petticrew, E.L., Krein, A. and Walling, D.E. (2007) Evaluating fine sediment mobilization and storage in a gravel-bed river system using reservoir controlled releases.Hydrological Processes 21 (2), 198-210.

Heywood, M.J.T and Walling, D.E. (2007) The sedimentation of salmonid spawning gravels in the Hampshire Avon catchment, UK: implications for the dissolved oxygen content of intragravel water and embryo survival. Hydrological Processes 21 (6), 770-788.

Schuller, P., Walling, D.E., Sepulveda, A., Castillo, A. and Pino, I. (2007) Changes in soil erosion associated with the shift from conventional tillage to a no-tillage system, documented using Cs-137 measurements. Soil and Tillage Research 94 (1), 183-192.

Collins, A.L. and Walling, D.E. (2007) Fine-grained bed sediment storage within the main channel systems of the Frome and Piddle catchments, Dorset, UK. Hydrological Processes 21 (11), 1449-1459.

Collins, A.L. and Walling, D.E. (2007) The storage and provenance of fine sediment on the channel bed of two contrasting lowland permeable catchments, UK . River Research and Applications 23 (4), 429-450.

Williams, N. D., Walling, D.E. and Leeks, G.J.L. (2007) High temporal resolution in situ measurement of the effective particle size characteristics of fluvial suspended sediment . Water Research 41 (5), 1081-1093.

Hasholt, B., Bobrovitskaya, N., Bogen, J., McNamara, J., Mernild, S.H., Milburn, D. and Walling, D.E. (2006) Sediment transport to the Arctic Ocean. Nordic Hydrology 37 (4-5), 413-432.

Ballantine, D.J., Walling, D.E., Collins, A.L. and Leeks, G.J.L. (2006) Phosphorus storage in fine channel bed sediments. Water Air Soil Pollut Focus, 6, (5-6), 371-380

Walling, D.E ., Collins, A.L., Jones, P.A., Leeks, G.J.L. and Old, G. (2006) Establishing fine-grained sediment budgets for the Pang and Lambourn LOCAR catchments, UK. J. Hydrology 330, 126-141.

Carter, J ., Walling, D.E., Owens, P.N. and Leeks, G.J.L. (2006) Spatial and temporal variability in the concentration and speciation of metals in suspended sediment transported by the River Aire, Yorkshire, UK. Hydrological Processes 20, 3007-3027.

Schuller, P., Iroume, A., Walling, D.E., Mancilla, H.B., Castillo, A. and Trumper, R.E. (2006)  Use of beryllium-7 to document soil redistribution following forest harvesting operations. Journal of Environmental Quality 35 (5), 1756-1763.

Zhang, X., Qi, Y., Walling, D.E., He, X., Wen, A. and Fu, J. (2006) A preliminary assessment of the potential for using 210Pb ex measurement to estimate soil redistribution rates on cultivated slopes in the Sichuan Hilly Basin of China. Catena 68,1-9.

Yang, M-Y., Walling, D.E., Tian, J.L. and Liu, P.L. (2006) Partitioning the contributions of sheet and rill erosion using beryllium-7 and cesium-137. Soil Science Society of America Journal 70 (5) 1579-90.

Nicholas, A.P., Walling, D.E., Sweet, R.J. and Fang, D. (2006) Development and evaluation of a new catchment-scale model of floodplain sedimentation. Water Resources Research 42 (10).

Nicholas. A.P., Walling, D.E., Sweet, R.J. and Fang, D. (2006) New strategies for upscaling high resolution flow and overbank sedimentation models to quantify floodplain sediment storage at the catchment scale. Journal of Hydrology 329 (3-4), 577-594.

Walling, D.E. (2006) Human impact on land–ocean sediment transfer by the world's rivers. Geomorphology 79, 192-216.

Foster, I.D.L., Mighall, T.M., Proffitt, H., Walling, D.E. and Owens, P.N. (2006) Post-depositional Cs-137 mobility in the sediments of three shallow coastal lagoons. J. Palaeolimnology 35, 881-895l

Zhang, X., Walling, D.E., Yang, Q., He, X., Wen, Z., Qi, Y. and Fenget, M. (2006) Cs-137 budget during the period of 1960s in a small drainage basin on the Loess Plateau of China. Journal of Environmental Radioactivity 86, 78-91

Haciyakupoglu, S., Ertek, T.A., Walling, D.E., Ozturk, F., Karahan, G., Erginal, A.E., Celebi, N.,Gureli, L., Kaya, H. and Akgun, H. (2006) Using caesium-137 measurements to investigate soil erosion rates in western Istanbul (NW Turkey). Catena 64, 222-231

Zhang, X. and Walling, D.E. (2005) Characterizing land surface erosion from cesium-137 profiles in lake and reservoir sediments. Journal of Environmental Quality, 34, 514-523.

Walling, D.E. (2005) Tracing suspended sediment sources in catchments and river systems. The Science of the Total Environment, 344, 159-184.

Droppo, I.G., Nackaerts, K., Walling, D.E. and Williams, N. (2005) Can flocs and water stable aggregates be differentiated within fluvial systems. Catena, 60, 1-18.

Beven, K., Heathwaite, L., Haygarth, P., Walling, D.E. , Brazier, R. and Withers, P. (2005)
On the concept of delivery of sediment and nutrients to stream channels Hydrological Processes, 19, 551-556.

Zhang, X., He, X., Wen, A.B. and Walling, D.E. (2004) Sediment source identification by using Cs-137 and Pb-210 radionuclides in a small catchment of the Hilly Sichuan Basin , China. Chinese Science Bulletin, 49, 1953-1957.

V.R. Thorndycraft, Benito, G., Walling, D.E., Sopeña, A. Sánchez-Moya, Y., Rico, M. and Casas, A. 2005 Caesium-137 dating applied to slackwater flood deposits of the Llobregat River, NE Spain. Catena, 59, 305-318.

Banis, Y.N., Bathurst, J.C. and Walling, D.E. (2004) Use of caesium-137 data to evaluate SHETRAN simulated long-term erosion patterns in arable lands, Hydrological Processes, 18, 1795-1809.

Piegay, H., Walling, D.E., Landon, N., He, Q., Liebault, F. and Petiot, R. (2004) Valley landscape, morphology and sedimentation as indicators of recent changes in sediment yield in an Alpine montane basin (The Upper Drôme in France). Catena 55, 183-212.

Collins, A.L. and Walling, D.E. (2004) Documenting catchment suspended sediment sources:.problems, approaches and prospects. Progress in Physical Geography 28, 159-196.

Schuller, P., Walling, D.E., Sepulveda, A., Trumper, R.E., Rouanet, J.L., Pino, I. and Castillo, A. (2004) Use of 137Cs to estimate changes in soil erosion rates associated with changes in soil management practices on cultivated land. Applied Radiation and Isotopes 60, 759-766

He, Q. and Walling, D.E. (2003) Testing distributed soil erosion and sediment delivery models using 137Cs measurements. Hydrological Processes, 17, 901-916.

Walling D.E. and Owens, P.N. (2003) The role of overbank floodplain sedimentation in catchment contaminant budgets. Hydrobiologia, 494, 83-91.

Walling, D.E. , Owens, P.N., Foster, I.D.L. and Lees, J.A. (2003) Changes in the fine sediment dynamics of the Ouse and Tweed basins in the UK, over the last 100-150 years. Hydrological Processes, 17, 3245-69.

Walling, D.E. , He, Q. and Whelan, P.A. (2003) Using 137Cs measurements to validate the application of the AGNPS and ANSWERS erosion and sediment yield models in two small Devon catchments. Soil and Tillage Research, 69, 27-43.

Theocharopoulos, S.P., Florou, H., Walling, D.E. , Kalantzakos, H., Christou, M., Tountas P. and Nikolaou, T. (2003) Soil erosion and deposition rates in a cultivated catchment area in central Greece, estimated using the 137Cs technique, Soil and Tillage Research, 69, 153-162.

Feng, M., Walling, D.E. , Zhang, X. and Wen, A. 2003 A study on responses of soil erosion and sediment yield to closing cultivation on sloping land in a small catchment using 137Cs technique in the Rolling Loess Plateau,China. Chinese Science Bulletin.48(19), 2093-2100

Ankers, C., Walling, D.E. and Smith, R. P. (2003) The influence of catchment characteristics on suspended sediment properties. Hydrobiologia, 494, 159-167.

Walling, D.E. , Collins, A.L. and Sichingabula, H.M. (2003) Using unsupported lead-210 measurements to investigate soil erosion and sediment delivery in a small Zambian catchment Geomorphology,52, 193-213.

Walling, D.E. and Fang, D. (2003) Recent trends in the suspended sediment loads of the world’s rivers. Global and Planetary Change, 39, 111-126.

Heywood, M. J.T. and Walling, D.E. (2003) Suspended sediment fluxes in chalk streams of the Hampshire Avon catchment, UK. Hydrobiologia, 494, 111-117.

Porto, P., Walling, D.E. , Tamburino, V. and Callegari, G. (2003) Relating Cs-137 and soil loss from cultivated land. Catena, 53, 303-326.

Walling, D.E. , Collins, A.L. and McMellin, G.K. (2003) A reconnaissance survey of the source of interstitial fine sediment recovered from salmonid spawning gravels in England and Wales Hydrobiologia, 497, 91-108.

Webb, B.W., Clack, P.D. and Walling , D.E. (2003) Water-air temperature relationships in a Devon river system and the role of flow. Hydrological Processes, 17, 3069-3084.

Porto, P. Walling, D.E. , Ferro, V. and Di Stefano, C. (2003) Validating erosion rate estimates provided by caesium-137 measurements for two small forested catchments in Calabria, Southern Italy. Land Degradation and Development, 14, 389-408.

Owens, P.N. and Walling, D.E. (2003) Temporal changes in the metal and phosphorus content of suspended sediment transported by Yorkshire rivers, UK, over the last 100 years, as recorded by overbank floodplain deposits. Hydrobiologia, 494, 185-191.

Carter, J., Owens, P.N., Walling, D.E . and Leeks, G.J.L.(2003) Fingerprinting suspended sediment sources in a large urban river system. The Science of the Total Environment, 314-316, 513-534.

Zhang, X., Walling, D.E. , Feng, M.and Wen, A. (2003) Pb-210 depth distribution in soil and conversion models for assessment of soil erosion rates from excess Pb-210 measurements. Chinese Science Bulletin, 48, 813-818.

Meharg, A.A., Wright, J., Leeks, G.J.L., Wass, P.D., Owens, P.N., Walling, D.E. and Osborn, D. (2003) PCB congener dynamics in a heavily industrialised river catchment. The Science of the Total Environment, 314-316, 439-450.

Sweet, R.J., Nicholas, A.P, Walling, D.E. and Fang, X. (2003) Morphological controls on medium-term sedimentation rates on British lowland river floodplains. Hydrobiologia,177-183.

Walling, D.E. , Owens, P.N., Carter, J., Leeks, G.J.L., Lewis, S. Meharg, A.A. and Wright, J. (2003) Storage of sediment-associated nutrients and contaminants in river channel and floodplain systems. Applied Geochemistry, 18, 195-220.

Walling, D.E. , Russell, M.A., Hodgkinson, R.A and Zhang, Y. (2002) Establishing sediment budgets for two small lowland agricultural catchments in the UK. Catena, 47, 323-353.

Blake, W.H., Walling, D.E. and He, Q. (2002) Using Cosmogenic Beryllium-7 as a tracer is sediment budget investigations. Geografiska Annaler, 84A , 89-102.

Collins, A.L. and Walling, D.E. ( 2002) Selecting fingerprint properties for discriminating potential suspended sediment sources in river basins. J. Hydrology, 261, 218-244.

Owens, P.N. and Walling, D.E. (2002) The phosphorus content of fluvial sediment in rural and industrialised river basins. Water Research, 36, 685-701.

Owens, P.N. and Walling, D.E. (2002) Changes in sediment sources and floodplain deposition rates in the catchment of the River Tweed, Scotland, over the last 100 years: The impact of climate and land use change. Earth Surface Processes and Landforms, 27, 403-423.

Woodward, J. C., Porter, P.R., Lowe, A.T., Walling, D.E. and Evans, A.J. (2002) Composite suspended sediment particles and flocculation in glacial meltwaters: preliminary evidence from Alpine and Himalayan basins. Hydrological Processes, 16, 1735-1744.

Collins, A.L., Walling, D.E. , Sichingabula, H. and Leeks, G.J.L. (2001) Using 137Cs measurements to quantify soil erosion and sediment redistribution for areas under different land use in the Upper Kaleya River basin, Southern Zambia. Geoderma, 104, (3-4) 193-214.

Porto, P., Walling, D.E. and Ferro. V. (2001) Validating the use of caesium-137 measurements to estimate soil erosion rates in a small drainage basin in Calabria, southern Italy. Journal of Hydrology, 248, 93-108.

Collins, A.L., Walling, D.E. Sichingabula, H.M. and Leeks, G.J.L. (2001) Suspended sediment source fingerprinting in a small tropical catchment and some management implications. Applied Geography, 21, 387-412.

Walling, D.E. , Collins, A.L., Sichingabula, H.M. and Leeks, G.J.L. (2001) Integrated assessment of catchment sediment budgets. Land Degradation and Development 12, 387-415.

Panin, A.V., Walling, D.E. and Golosov, V.N. (2001) The role of soil erosion and fluvial processes in the post-fallout redistribution of Chernobyl-derived caesium-137: a case study of the Lapki catchment, Central Russia. Geomorphology 40- 185-204.

Porto. P., Walling, D.E. and Ferro. V. (2001) Validating the use of caesium-137 measurements to estimate soil erosion rates in a small drainage basin in Calabria, southern Italy. Journal of Hydrology, 248, 93-108.

Russell, M.A., Walling, D.E. and Hodgkinson, R. (2001) Suspended sediment sources in two small lowland agricultural catchments in the UK. Journal of Hydrology 252, 1-24.

Collins, A.L., Walling, D.E. , Sichingabula, H. and Leeks, G.J.L. (2001) Using 137Cs measurements to quantify soil erosion and sediment redistribution for areas under different land use in the Upper Kaleya River basin, Southern Zambia. Geoderma 104, (3-4) 193-214.

Walling, D.E. , Russell, M.A. and Webb, B.W. (2001) Controls on the nutrient content of suspended sediment transported by British rivers. The Science of the Total Environment 266, 113-123.

Owens, P.N., Walling, D.E. , Carton, J., Meharg, A.A., Wright, J. and Leeks, G.J.L. (2001) Downstream changes in the transport and storage of sediment-associated contaminants (P, Cr and PCBs in agricultural and industrialized drainage basins. The Science of the Total Environment 266, 177-186.

Chapters in Edited Volumes and Papers in Conference Proceedings

Walling, D.E . (2007). Tracing versus monitoring: New approaches to studying the fine sediment dynamics of catchments and river basins. In: Proceedings of the International Conference on Erosion and Torrent Control as a Factor in Sustainable River Basin Management, September 2007, Belgrade, Serbia.

Kiziltas, M.S., Haciyakupoglu, S., Gokbulak, F., Walling, D.E., Ertek, T.A. and Hizal, A. (2007). Prediction of soil erosion from different land use types in the Omerli watershed, using fallout radionuclide methodology. In: Proceedings of the International Conference on Erosion and Tprrent Control as a Factor in Suistainable River Basin Management, 25-28 September, 2007, Belgrade, Serbia

Walling, D.E. (2007) Global change and the sediment loads of the world’s rivers. In Proceedings of the Tenth International Symposium on River Sedimentation, Moscow, August 2007, Moscow University Press, vol. 1, pp. 112-130.

Porto, P., Walling, D.E., Tamburino, V. and Migliardi, A. (2007) Validating models fore converting Lead-210 measurements to estimat6es of soil loss. In Proceedings of the Tenth International Symposium on River Sedimentation, Moscow, August 2007, Moscow University Press, vol. 1, pp. 317-326.

Schuller, P., Iroume, A. and Walling, D.E. (2007) Asessimng the effectiuvedness of trash barriers in reducing soil erosion and sediment delivery to streams after forest clearcutting. In Proceedings of the Tenth International Symposium on River Sedimentation, Moscow, August 2007, Moscow University Press, vol. 6, pp. 253-261.

Walling, D.E . (2006) The changing sediment loads of the World’s rivers. In Proceedings of the International Sediment Initiative Conference, Khartoum, Nov. 2006,

Walling, D.E . (2006) Tracing versus monitoring: New challenges and opportunities in erosion and sediment delivery research. In Soil Erosion and Sediment Redistribution in River Catchments (Ed. P.N.Owens and A.J. Collins) CABI, Wallingford, 13-27.

Nunny, R.S., Stone, P. and Walling, D.E. (2006) Land use change, sediment fluxes and reef conservation in Belize Central America. In Soil Erosion and Sediment Redistribution in River Catchments (Ed. P.N.Owens and A.J. Collins) CABI, Wallingford, 264-271.

Harlow, A., Webb, B.W and Walling D.E. (2006) Sediment yields in the Exe basin: a longer-term perspective. In Sediment Dynamics and the Hydromorphology of Fluvial Systems, IAHS Publication no. 306, IAHS Press, Wallingford, 12-20.

Froehlich, W. and Walling, D.E. (2006) The use of Cs-137 and 210Pb ex to investigate sediment sources and overbank sedimentation in the Teesta River basin, Sikkim Himalaya, India. In Sediment Dynamics and the Hydromorphology of Fluvial Systems, IAHS Publication no. 306, IAHS Press, Wallingford, 380-388.

Walling, D.E., Fang, D., Nicholas, A.P. and Sweet, R.J. (2006) River floodplains as carbon sinks. In Sediment Dynamics and the Hydromorphology of Fluvial Systems, IAHS Publication no. 306, IAHS Press, Wallingford, 460-470.

Collins, A.L. and Walling, D.E. (2006) Investigating the remobilization of fine sediment stored on the channel bed of lowland permeable catchments in the UK. In Sediment Dynamics and the Hydromorphology of Fluvial Systems, IAHS Publication no. 306, IAHS Press, Wallingford, 471-479.

Ballantine, D., Walling, D.E. and Leeks, G.J.L. (2006) The deposition and storage of sediment-associated phosphorus on the flood plains of two lowland groundwater fed catchments. In Sediment Dynamics and the Hydromorphology of Fluvial Systems, IAHS Publication no. 306, IAHS Press, Wallingford, 496-504.

Brazier, R., Scharer, M., Heathwaite, L., Beven, K., Scholefield, P., Haygarth, P. Hodgkinson, R., Walling, D.E. and Withers, P. (2006) A framework for predicting delivery of phosphorus from agricultural land using a decision tree approach. In Sediment Dynamics and the Hydromorphology of Fluvial Systems, IAHS Publication no. 306, IAHS Press, Wallingford, 514-523.

Schuller, P., Walling, D.E., Sepúlveda, A. and Castillo, A. (2005). Use of 137Cs measurements to document changes in soil redistribution rates associated with changes in soil management on agricultural land. In: Strand, P., Børretzen, P. & Jølle, T. NRPA (Eds.) Proceedings from the 2 nd International Conference on Radioactivity in the Environment, Nice, France, 2-6 October 2005: 459-462.

Walling, D.E. (2005) Sediment Yields and Sediment Budgets. In: Encyclopaedia of Hydrological Sciences ,Wiley, pp. 1283-1304.

Phillips J.M. and Walling, D.E. (2005) Intra-storm and seasonal variations in the effective particle size characteristics and effective particle density of fluvial suspended sediment in the Exe basin, Devon, UK. In I.G. Droppo et al. (Eds.) Flocculation in Natural and Engineered Environmental Systems, Lewis Pub. pp. 47-70.

Froehlich, W. and Walling, D.E. (2005) Using environmental radionuclides to elucidate sediment sources within a small catchment in the Polish Flysch Carpathians. In Walling, D.E. and Horowitz, A.J. (Eds.) Sediment Budgets 1 – Proceedings International Symposium on Sediment Budgets, Foz do Iguacu, Brazil, April 2005. International Association of Hydrological Sciences Publication no. 291, IAHS Press, Wallingford, UK, pp. 102-112.

Walling, D.E. and Collins, A.L. (2005) Suspended sediment sources in British Rivers. In Walling, D.E. and Horowitz, A.J. (Eds.) Sediment Budgets 1 – Proceedings International Symposium on Sediment Budgets, Foz do Iguacu, Brazil, April 2005. International Association of Hydrological Sciences Publication no. 291, IAHS Press, Wallingford, UK, pp. 123-133.

Porto, P. and Walling, D.E. and Callegari, G. (2005) Investigating suspended sediment sources within a small catchment in Southern Italy. In Walling, D.E. and Horowitz, A.J. (Eds.) Sediment Budgets 1 – Proceedings International Symposium on Sediment Budgets, Foz do Iguacu, Brazil, April 2005. International Association of Hydrological Sciences Publication no. 291, IAHS Press, Wallingford, UK, pp.113-122.

Collins, A.L., Walling, D.E. and Leeks, G.J.L. (2005) Storage of fine-grained sediment and associated contaminants within the channels of lowland permeable catchments in the UK. In Walling, D.E. and Horowitz, A.J. (Eds.) Sediment Budgets 1 – Proceedings International Symposium on Sediment Budgets, Foz do Iguacu, Brazil, April 2005. International Association of Hydrological Sciences Publication no. 291, IAHS Press, Wallingford, UK, pp. 259-268.

Navas, A., Walling, D.E. , Quine, T.A., Machin, J. and Soto, J. (2005) The pattern of soil redistribution along a transect in the Central Ebro basin (NE Spain) and its controls. In Walling, D.E. and Horowitz, A.J. (Eds.) Sediment Budgets 1 – Proceedings International Symposium on Sediment Budgets, Foz do Iguacu, Brazil, April 2005. International Association of Hydrological Sciences Publication no. 291, IAHS Press, Wallingford, UK, pp. 70-77.

Walling, D.E. (2004) Quantifying the fine sediment budgets of river basins. In Proceedings Irish National Hydrology Semimar, 2004. pp.9-20.

Walling, D.E. (2004) Using environmental radionuclides to trace sediment mobilisation and delivery in river basins as an aid to catchment management. In: Proceedings 9th International Symposium on River Sedimentation, Tsinghua University Press, Beijing, Vol. 1, 120-135.

Zhang, X., He, X., Wen, A.B. and Walling D.E. (2004) Use of Cs-137 and Pb –210 radionuclides as tracers to investigate sediment sources in small catchments of the Hilly Sichuan basin, China. In Proceedings 9th International Symposium on River Sedimentation, Yichang, China, October 2004, pp.2643-2648.

Walling, D.E . and Zhang, Y. (2004) Predicting slope-channel connectivity: a national scale apprioach. In: Golosov, V., Belyaev, V. and Walling, D.E. (Eds.) Sediment Transfer through the Fluvial System. International Association of Hydrological Sciences Publication no. 288. IAHS Press, Wallingford, 107-114.

Walling, D.E. , Fang, D., Nicholas, A.P. and Sweet, R.J. (2004) The grain size characteristics of overbank deposits on the flood plains of British lowland rivers. In: Golosov, V., Belyaev, V. and Walling, D.E. (Eds.) Sediment Transfer through the Fluvial System. International Association of Hydrological Sciences Publication no. 288. IAHS Press, Wallingford, 226-234.

Haciyakupoglu, S., Ertek, T.A., Walling, D.E. , Karahan, G., Erginal, A.E., Saygoin, H. and Oguz, I. 2004 Using 137Cs measurements to estimate soil erosion on cultivated land in Istanbul. In: Proceedings International Symposium on Earth System Sciences, Istanbul, Turkey, 309-316.

N.D. Williams, Walling, D.E. and Leeks, G.J.L. (2004) The settling behaviour of fine sediment particles: some preliminary results from LISST instruments. In: Golosov, V., Belyaev, V. and Walling, D.E. (Eds.) Sediment Transfer through the Fluvial System. International Association of Hydrological Sciences Publication no. 288. IAHS Press, Wallingford, 283-290.

Wilson, A.J., Walling, D.E. and Leeks, G.J.L. (2004) In-channel storage of fine sediment in rivers of southwest England. In: Golosov, V., Belyaev, V. and Walling, D.E. (Eds.) Sediment Transfer through the Fluvial System. International Association of Hydrological Sciences Publication no. 288. IAHS Press, Wallingford, 292-299.

Porto, P., Walling, D.E. and Callegari, G. (2004) Validating the use of caesium-137 measurements to estimate erosion rates in three small catchments in Southern Italy. In: Golosov, V., Belyaev, V. and Walling, D.E. (Eds.) Sediment Transfer through the Fluvial System. International Association of Hydrological Sciences Publication no. 288. IAHS Press, Wallingford, 75-83.

Sutton, R.I., Nicholas, A.P. and Walling, D.E. (2004) Monitoring and modelling flow and suspended sediment transport processes in alluvial cutoffs. In: Golosov, V., Belyaev, V. and Walling, D.E. (Eds.) Sediment Transfer through the Fluvial System. International Association of Hydrological Sciences Publ;ication no. 288. IAHS Press, Wallingford, 410-416.

Walling, D.E. (2003) Using environmental radionuclides as tracers in sediment budget investigations . In: Bogen, J., Fergus, T. and Walling, D.E. (Eds.) Erosion and Sediment Transport Measurement in Rivers: Technological and Methodological Advances. International Association of Hydrological Sciences Publication no.283. IAHS Press, Wallingford, 57-78.

Walling, D.E. , Collins, A.L., Sichingabula, H.M. and Leeks, G.J.L. (2003) Use of reconnaissance measurements to establish catchment sediment budgets: a Zambian example. In: De Boer, D., Froehlich, W., Mizuyama, T. and Pietroniro, A. (Eds.) Erosion Prediction in Ungauged Basins: Integrating Methods and Techniques. International Association of Hydrological Sciences Publication no.279. IAHS Press, Wallingford, 1-12.

Stokes, S. and Walling, D.E . (2003) Radiogenic and isotopic methods for the direct dating of fluvial sediments. In: Kondolf, G.M. and Piegay, H. (Eds.) Tools in Fluvial Geomorphology.Wiley, Chichester, 233-267.

Walling, D.E. (2003) River floodplains as sediment sinks. In From Watershed Slopes to Coastal Areas: Sedimentation Processes at Different Scales. Papers from the Venice Workshop, December, 2003, UNESCO-ICCORES, Paper 1.3.

Froehlich, W. and Walling, D.E. (2003) The use of 210Pbex and 137Cs to investigate sediment transfer and sedimentation in the fluvial system of the Teesta River, Sikkim Himalaya and Ganga-Brahmaputra Plain, India. In From Watershed Slopes to Coastal Areas: Sedimentation Processes at Different Scales. Papers from the Venice Workshop, December, 2003, UNESCO-ICCORES, Paper 2.1.

Sidorchuk, A., Walling, D.E. and Wasson, R. (2003) A LUCIFS strategy: Modelling the sediment budgets of fluvial systems. In; Lang, A., Hennrich, K. and Dikau, R. (Eds.) Long Term Hillslope and Fluvial System Modelling. Springer, Berlin, 19-35.

Thorndycraft, V.R., Benito, G., Walling, D.E. , Sopena, A., Sanchez-Moya, Y. and Rico, M. (2003) Radiocarbon and caesium- 137 dating of slackwater flood deposits of the Llobregat River (NE Spain). In: Thorndycraft, V.R., Benito, G., Barriendos, M. and Llasat, M.C. Palaeofloods, Historical Data and Climatic Variability, CSIC, Madrid, 39-44.

Walling, D.E. (2003) Identifying suspended sediment sources in river basins as a basis for developing sediment management strategies. In: Ecological, Sociological and Economic Implications of Sediment Management in Reservoirs, Proceedings of the International Workshop, Paestum, Italy, April, 2002, UNESCO-ICCORES, 56-90.

Froehlich, W. and Walling D.E. (2003) Impact of anthropogenic sediment source of reservoir sedimentation in the Polish Carpathians. In Ecological, Sociological and Economic Implications of Sediment Management in Reservoirs, Proceedings of the International Workshop, Paestum, Italy, April, 2002, UNESCO-ICCORES, 108-112. .

Walling, D.E. and He, Q. (2002) Using 137Cs measurements to test distributed soil erosion and sediment delivery models. In: Summer, W. and Walling, D.E. (Eds.) Modelling Erosion, Sediment Transport and Sediment Yield. UNESCO International Hydrological Programme Technical Documents in Hydrology no. 60. UNESCO, Paris, 243-264.

Droppo, I.G., Walling, D.E. and Ongley, E.D. (2002) Suspended sediment structure: implications for sediment transport/yield modelling. In: Summer, W. and Walling, D.E. (Eds.) Modelling Erosion, Sediment Transport and Sediment Yield. UNESCO International Hydrological Programme Technical Documents in Hydrology no. 60. UNESCO, Paris, 205-228.

Froehlich, W. Walling, D.E. (2002) The use of fallout radionuclides in investigations of sediment sources and overbank sedimentation within the Teesta river basin, Sikkim Himalaya and Ganga-Brahmaputra Plain, India. In: P. Hubert, D. Scherzer, K. Takeuchi and S. Koide (Eds.) Proceedings International Workshop of IAHS Decade on Prediction in Ungauged Basins- Hydrological Sciences on Mission, IAHS/University of Brasilia, 2002: 1-11.

Walling, D.E. (2002) Recent advances in the use of environmental radionuclides in soil erosion investigations. In. Nuclear Techniques in Integrated Plant Nutrient, Water and Soil Management. International Atomic Energy Agency C&S Papers Series 11/C, IAEA, Vienna, p. 279-301.

Walling, D.E., He, Q. and Appleby. P.G. (2002) Conversion models for use in soil-erosion, soil redistribution and sedimentation investigations. In: Zapata, F. (Ed.) Handbook for the Assessment of Soil Erosion and Sedimentation Using Environmental Radionuclides. Kluwer, Dordrecht, 111-164.

Loughran, R.J., Wallbrink, P.J., Walling, D.E. and Appleby, P.G. (2002) Sampling methods. In: Zapata, F. (Ed.) Handbook for the Assessment of Soil Erosion and Sedimentation Using Environmental Radionuclides. Kluwer, Dordrecht, 41-57.

Wallbrink, P.J., Walling, D.E . and He, Q. (2002) Radionuclide measurements using HpGe gamma spectrometry. In: Zapata, F. (Ed.) Handbook for the Assessment of Soil Erosion and Sedimentation Using Environmental Radionuclides. Kluwer, Dordrecht, 67-96.

Loughran, R.J., Pennock, D.J. and Walling, D.E. (2002) Spatial distribution of caesium-137. In: Zapata, F. (Ed.) Handbook for the Assessment of Soil Erosion and Sedimentation Using Environmental Radionuclides. Kluwer, Dordrecht, 97-109.

He, Q., Walling, D.E. and Wallbrink, P.J.(2002) Alternative methods and radionuclides for use in soil erosion and sedimentation investigations. In: Zapata, F. (Ed.) Handbook for the Assessment of Soil Erosion and Sedimentation Using Environmental Radionuclides. Kluwer, Dordrecht, 185-215.

Walling, D.E. (2002) Using environmental radionuclides as tracers in sediment budget investigations. In: Erosion and Sediment Transport Measurement in Rivers: Technological and Methodological Advances, NVE, Oslo, 19-23.

Walling, D.E. and Owens, P.N. (2002) The role of floodplain sedimentation in catchment sediment and contaminant budgets. In: The Structure and Management Implications of Fluvial Sedimentary Systems, IAHS Publication no. 276, 407-416.

Ben Mansour, M., Majah, M., Ibn, Marah, H., Marfak, T. and Walling, D.E. (2002) Use of the 137Cs technique in soil erosion investigations: A case study in the Zitouna Basin in the north of Morocco. In: Nuclear Techniques in Integrated Plant Nutrient, Water and Soil Management, IAEA C&S Papers Series 11/C, IAEA, Vienna, p. 309-315.

Walling, D.E. and Leeks, G.J.L. (2001) Suspended sediment fluxes in rivers entering the Humber Estuary. In: Huntley, D., Leeks, G.J.L. and Walling, D.E. (Eds.) Land-Ocean Interaction: Measuring and Modelling Fluxes from River Basins to Coastal Seas. IWA, London, p. 32-68.

Walling, D.E. , He, Q. and Al-Ansari, N. (2001) The use of caesium-137 in the catchments of the Jordanian Badia as a tracer to study soil erosion and sediment delivery. In: Baban, S.M.J. and Al-Ansari, N.A. (Eds.) Living with Water Scarcity: Water Resources in the Jordan Badia Region - The Way Forward. Al al-Bayt University Press, 159-171.

Huntley, D., Leeks, G.J.L. and Walling, D.E. (2001) From rivers to coastal seas: the background and context of the land-ocean interaction study. In: Huntley, D., Leeks, G.J.L. and Walling, D.E. (Eds.) Land-Ocean Interaction: Measuring and Modelling Fluxes from River Basins to Coastal Seas. IWA, London, p. 1-7.

Collins. A.L., Walling, D.E. , Sichingabula, H.M. and Leeks, G.J.L. (2002) Catchment suspended sediment budgets an integrated approach. In:. Sichingabula, H.M.., Walling, D.E. and Collins, A.L. (Eds.) Dynamics of Erosion, Sediment Transport and Sedimentation in Small Catchments. Ministry of Environment and Natural Resources, Lusaka, Zambia. 12-23.

Sichingabula, H.M., Collins, A.L., Walling, D.E . and Leeks, G.J.L. (2002) Measuring suspended sediment fluxes and yields from drainage basins. In:. Sichingabula, H.M.., Walling, D.E. and Collins, A.L. (Eds.) Dynamics of Erosion, Sediment Transport and Sedimentation in Small Catchments. Ministry of Environment and Natural Resources, Lusaka, Zambia. 24-47.

Collins. A.L., Walling, D.E. , Sichingabula, H.M. and Leeks, G.J.L. (2002) Determining catchment suspended sediment sources using the fingerprinting approach.. In: Sichingabula, H.M.., Walling, D.E. and Collins, A.L. (Eds.) Dynamics of Erosion, Sediment Transport and Sedimentation in Small Catchments. Ministry of Environment and Natural Resources, Lusaka, Zambia. 48-70.

Collins. A.L., Walling, D.E. , Sichingabula, H.M. and Leeks, G.J.L. (2002) Using the caesium-137 technique to quantify soil erosion and deposition on cultivated and uncultivated land. In: Sichingabula, H.M.., Walling, D.E. and Collins, A.L. (Eds.) Dynamics of Erosion, Sediment Transport and Sedimentation in Small Catchments. Ministry of Environment and Natural Resources, Lusaka, Zambia. 71-98.