A view of water quality from the Plynlimon watershed

Hydrology and Earth System Sciences

Volumn 1, Issue 3, 1997, Pages 743-753

  Neal, Colin ^a  

^a CENTRE FOR ECOLOGY AND HYDROLOGY   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0003090697     PISSN: 10275606     EISSN: None     Source Type: Journal    
DOI: 10.5194/hess-1-743-1997     Document Type: Review

References (86)

1. Avila, A., Bonilla, D., Rodà, F., Pinöl, J. and Neal, C. 1995. Variations in soil solution chemistry for a holm oak (Quercus ilex) forest: inferences on chemical processes for a montane Mediterranean area. J. Hydrol., 166, 15-35.
2. Avila, A., Neal, C., and Terradas, J., 1996. Climate change implications for streamflow and streamwatcr chemistry in a Mcditterranean catchment. J. Hydrol., 177, 99-116.
3. Beven, K.J. and Kirkby, M.J. 1979. A physically based variable contributing area model of basin hydrology. Hydrol. Sci. Bull., 24(1), 43-69
4. Beven, K.J., Kirkby, M.J., Schoffield, N. and Tagg, A. 1984. Testing a physically based flood forecasting model TOP-MODEL for three UK catchments. J. Hydrol., 69, 119-143.
5. Christophersen, N. and Neal, C. 1990. Linking hydrological, geochemical, and soil chemical processes on the catchment scale: an interplay between modelling and field work. Wat. Resour. Res., 26, 3077-3086.
6. Christophersen, N., Seip, H.M. and Wright, R.F. 1982. A model for stream water chemistry at Birkenes, Norway. Wat. Resour. Res., 18, 977-996.
7. Christophersen, N., Rustad, S. and Seip, H.M. 1984. Modelling streamwater chemistry with snowmelt. Phil. Trans. Roy. Soc., Lond. B, 305, 427-439.
8. Christophersen, N., Neal, C., Hooper, R.P., Vogt, R.D. and Andersen, S. 1990a. Modelling streamwater chemistry as a mixture of soil water end members - a step towards second-generation acidification models. J. Hydrol., 116, 307-320.
9. Christophersen, N., Robson, A.J., Neal, C., Whitehead, P.G., Vigerust, B. and Henriksen, A. 1990b. Evidence for long-term deterioration of streamwater chemistry and soil acidification at the Birkenes catchment, southern Norway. J. Hydrol., 116, 63-76.
10. Christophersen, N., Neal, C., Hooper, R.P., Vogt, R.D. and Andersen, S. 1990c. Modelling streamwater chemistry as a mixture of soilwater endmembers - a step towards second generation acidification models. J. Hydrol., 116, 307-320.
11. Christophersen, N., Neal, C. and Hooper, R.P. 1993. Modelling the hydrochemistry of catchments: a challenge for the scientific method. J. Hydrol., 152, 1-12.
12. Cohen, J. and Stewart, I. 1994. The Collapse of Chaos: Discovering simplicity in a complex world. Viking (London, UK), 495pp.
13. Cosby, B.J., Wright, R.F., Hornberger, G.M. and Galloway, J.N. 1985a. Modelling the effects of acidic deposition: assessment of a lumped-parameter model of soil water and stream water chemistry. Wat. Resour. Res., 21, 51-63.
14. Cosby, B.J., Wright, R.F., Hornberger, G.M. and Galloway, J.N. 1985b. Modelling the effects of acid deposition: estimation of long-term water quality responses in a small forested catchment. Wat. Resour. Res., 21, 1591-1601.
15. Cosby, B.J., Norton, S.A., and Kahl, J.S., 1996. Using a paired-catchment manipulation experiment to evaluate a catchment-scale biogeochemical model. Sci. Total Environ., 183, 49-66.
16. Cosby, B.J., Ferner, R.C., Jenkins, A., Emmett, B.A., Wright, R.F., and Tietema, A. 1997. Modelling the ecosystem effects of nitrogen deposition: Model of Ecosystem Retention and Loss of Inorganic Nitrogen (MERLIN). Hydrol. Earth System Sci., 1, 137-158.
17. Dillon, P.J., Read, R.A. and deGrosbois, E. 1987. The rate of acidification of aquatic ecosystems in Ontario, Canada. Nature, Lond., 329, 45-48.
18. Driscoll, C.T., Likens, G.E., Hedin, L.O., Eaton, J.S. and Bormann, F.H. 1989. Changes in the chemistry of surface waters. Environ. Sci. Technol., 23, 137-143.
19. Durand, P., Neal, C., Jeffery, H.A., Ryland, G.P. and Neal, M. 1994. Major, minor and trace element budgets for the Plynlimon afforested catchments (Wales): general trends and effects of felling and climate variations. J. Hydrol., 157, 139-156.
20. Edwards, R.W., Gee, A.S. and Stoner, J.H. 1990. Acid Waters in Wales. A compendium of papers edited by R.W. Edwards, A.S. Gee and J.H. Stoner. Kluwer Academic Publishers (Dordrecht), 337pp.
21. Ferrier, R.C., Whitehead, P.G., and Miller, J.D., 1993. Potential impacts of afforestation and climate change on the stream water chemistry of the Monochyle catchment. J. Hydrol., 145, 453-466.
22. Forti, C.M., Neal, C., and Jenkins, A., 1995. Modelling perspective of the deforestation impact in stream water quality of small preserved forested areas in the Amazonian rainforest. Wat. Air Soil Pollut., 79, 325-337.
23. Forti, M.C., Neal, C. and Robson, A.J. 1996. Modelling the long term changes in stream, soil and groundwater chemistry for an acid moorland in the Welsh uplands; the influence of variations in chemical weathering. Sci. Total Environ., 180, 187-200.
24. Gherini, S.A., Mok, L., Hudson, R.J.M., Davis, G.F., Chen, C.W., and Goldstein, R.A., 1985. The ILWAS model: formulation and application. Wat. Air, Soil Pollut., 26, 425-459.
25. Hauhs, M., Neal, C., Hooper, R.P. and Christophersen, N. 1996. Summary of a workshop on ecosystem modelling: the end of an era? Sci. Total Environ., 183, 1-5.
26. Hill, T. and Neal, C. 1997. Spatial and temporal variation in pH, alkalinity and conductivity in surface runoff and groundwater for the upper River Severn catchment, Plynlimon. Hydrol. Earth System Sci., 1, 697-715.
27. Hooper, R.P., and Christophersen, N., 1992. Predicting episodic stream acidification in the southeastern United States.: combining a long-term acidification model and the end-member mixing concept. Wat. Resour. Res., 28, 1983-1990.
28. Horrocks, C. and Jevtic, Z. 1996. Baudrillard for beginners. Icon books Ltd (Cambridge, UK), 175pp.
29. Hudson, J.A., Gilman, K. and Calder, I.R. 1997a. Land use and water quality issues in the uplands with reference to the Plynlimon study. Hydrol. Earth System Sci., 1, 389-397.
30. Hudson, J.A., Crane, S.B. and Blackie, J.R. 1997b. The Plynlimon water balance 1969-1995: The impact of forest and moorland vegetation on evaporation and streamflow in upland catchments. Hydrol. Earth System Sci., 1, 409-427.
31. Inggrouille, M. 1995. Historical Ecology of. British Flora. Chapman Hall (London), 347pp.
32. Jenkins, A., Cosby, B.J., Ferrier, R.C., Walker, T.A.B. and Miller, J.D. 1990. Modelling stream acidification in afforested catchments: an assessment of the relative effects of acid deposition and afforestation. J. Hydrol., 120, 163-181.
33. Jenkins, H., Coric, S. Reynolds, B., Curtis, C., and Renshaw, M. 1997. Critical loads for soils and freshwaters; a comparison of methods at the Plynlimon catchments. Hyrol. Earth System Sci., 1, 729-741.
34. Kirby, C., Newson, M.D. and Gilman, K. 1991. Plynlimon research: the first two decades. Institute of Hydrology Report No 109. Institute of Hydrology, Wallingford, UK. 188pp.
35. Lange, H., Hauhs, M. and Schmidt, S. 1995. Long term sulphate dynamics at Lange Bramke (Harz) used for testing two acidification models. Wat. Air Soil Pollut., 79, 339-351.
36. Likens, G.E. and Bormann, F.H. 1995. Biogeochemistry of a forested ecosystem. Springer-Verlag (New York), 159pp.
37. Lundquist, D., Christophersen, N. and Neal, C. 1990. Towards developing a new short-term model for the Birkenes catchment - lessons learned. J. Hydrol., 116, 391-401.
38. Lyotard, J.F. 1994. The postmodern condition: a report on knowledge. Manchester University Press (Manchester, UK), 110pp.
39. Manderscheid, B., Matzner, E., Meiwes, K.-J. and Xu, Y. 1995. Long term development of element budgets in a norway spruce (Picea Abies (L.) Karst.) forest of the German Soiling area. Wat. Air Soil Pollut., 79, 3-18
40. Mason, B.J. 1990. The Surface Water Acidification Programme. a compendium of papers edited by B.J. Mason. Cambridge University Press, 522pp.
41. McCulloch, J.S.G. 1997. Foreword: A historical view from the watershed. Hydrol. Earth System Sci., 1, 318-384.
42. Neal, C. 1988a. Aluminium solubility relationships in acid waters: a practical example of the need for a radical reappraisal. J. Hydrol., 104, 141-159.
43. Neal, C. 1988b. Aluminium solubility in acid waters. Earth Planet Sci. Let, 86, 105-112.
44. Neal, C. 1992. Describing anthropogenic impacts on stream water quality: the problem of integrating soil water chemistry variability. Sci. Total Environ, 115, 207-218.
45. Neal, C. 1995. Aluminium speciation variations in an acidic upland stream draining the Hafren spruce forest, Plynlimon, mid-Wales. J. Hydrol., 164, 39-51.
46. Neal, C. 1996. Towards lumped integrated models of complex heterogeneous environmental systems. Sci. Total Environ., 183, 115-124.
47. Neal, C. 1997. Introduction to the special issue of Hydrology and Earth System Sciences. The water quality of the Plynlimon Catchments. Hydrol. Earth System Sci., 1, 385-388.
48. Neal, C. and Robson, A.J. 1994. Integrating soil water chemistry variations at the catchment level within a cation exchange model. Sci. Total Environ., 144, 93-102.
49. Neal, C. and Christophersen, N. 1989. Inorganic aluminium-hydrogen relationships for acidified streams: the role of water mixing processes. Sci. Total Environ., 80, 195-203.
50. Neal, C. and Robson, A.J. 1997. Integrating variations of soil adsorbed cations into a cation exchange model. Sci. Total Environ., 199, 277-292.
51. Neal, C., Smith, C.J., Walls, J., Billingham, P., Hill, S. and Neal, M. 1990a. Hydrogeochemical variations in Hafren forest stream waters, mid-Wales. J. Hydrol., 116, 185-200.
52. Neal, C., Robson, A.J. and Smith, C.J. 1990b. Acid neutralization capacity variations for Hafren Forest streams: inferences for hydrological processes. J. Hydrol., 121, 85-101.
53. Neal, C., Whitehead, P.G., Neale, R., and Cosby, B.J., 1986. Modelling the effects of acidic deposition and conifer afforestation on stream acidity in the British uplands. J. Hydrol., 86, 15-26.
54. Neal, C., Christophersen, N, Neale, R., Smith, C.J., Whitehead, P.G. and Reynolds, B. 1988. Chloride in precipitation and streamwater for the upland catchment of the River Severn, mid-Wales; some consequences for hydrochemical models. Hydrol. Processes, 2, 155-165.
55. Neal, C., Smith, C.J. and Hill, S. 1992a. Forestry impact on upland water quality. Institute of Hydrology Report No. 119. Institute of Hydrology, Wallingford, UK. 50pp.
56. Neal, C., Reynolds, B., Smith, C.J., Hill, S., Neal, M., Conway, T., Ryland, G.P., Jeffery, H.A., Robson, A.J. and Fisher, R. 1992b. The impact of conifer harvesting on stream water pH, alkalinity and aluminium concentrations for the British uplands: an example for an acidic and acid sensitive catchment in mid-Wales. Sci. Total Emviron., 126, 75-87.
57. Neal, C., Fisher, R., Hill, S., Neal, M., Conway, T., Ryland, G.P. and Jeffery, H.A. 1992c. The effects of tree harvesting on stream water quality at an acidic and acid sensitive spruce forested area: Plynlimon, mid-Wales. J. Hydrol., 135, 305-319.
58. Neal, C., Reynolds, B., Stevens, P.A., Hornung, M. and Brown, S.J. 1992d. Dissolved inorganic aluminium in acidic stream and soil waters in Wales. In: Acid Waters in Wales edited by R.W. Edwards, A.S. Gee and J.H. Stoner. Kluwer Academic Publishers (Dordrecht), 173-188.
59. Neal, C., Robson, A.J., Reynolds, B. and Jenkins, A. 1992e. Prediction of future short term stream chemistry - a modelling approach. J. Hydrol., 130, 87-103.
60. Neal, C., Neal, M., Ryland, G.P., Jeffery, H.A., Harrow, M., Hill, S. and Smith, C.J. 1994. Chemical variations in near surface drainage water for an acidic spruce forested UK upland area subjected to timber harvesting: inferences on cation exchange processes in the soil. Sci. Total Environ, 154, 47-61.
61. Neal, C., Avila, A., and Roda, F., 1995. Modelling the long-term impacts of atmospheric pollution deposition and repeated forestry cycles on stream water chemistry for a holm oak forest in northeastern Spain. J. Hydrol., 168, 51-71.
62. Neal, C., Smith, C.J., Jeffery, H.A., Harrow, M. and Neal, M. 1996. Dissolved chromium pollution in rainfall and surface waters in mid-Wales during the mid-1980s. Sci. Tot. Environ., 188, 127-138.
63. Neal, C., Wilkinson, J., Neal, M., Harrow, M., Wickham, H., Hill, L. and Morfitt, C. 1997a. The hydrochemistry of the River Severn, Plynlimon. Hydrol. Earth System Sci., 1, 583-617.
64. Neal, C., Robson, A.J. and Christophersen, N. 1997b. Towards coupling hydrological, soil and weathering processes within a modelling perspective. In: Geochemical processes, weathering and groundwater recharge in catchments (eds O.M. Saethcr and P. de Caritat). A.A. Balkema (Rotterdam), 329-380.
65. Neal, C., Hill, T., Hill, S. and Reynolds, B. 1997c. Acid neutralization capacity measurements in surface and groundwaters in the upper River Severn, Plynlimon, mid-Wales: from hydrograph splitting to water flow pathways. Hydrol. Earth System Sci., 1, 687-696.
66. Neal, C., Robson, A.J., Shand, P., Edmunds, W.M., Dixon, A.J., Buckley, D.K., Hill, S., Harrow. M., Neal, M. and Reynolds, B. 1997d. Stream water quality in acid sensitive upland areas, an example of potential water quality remediation based on groundwater manipulation. Hydrol. Earth System Sci., 1, 3-18.
67. Neal, C., Hill, T., Alexander, S., Reynolds, B., Hill, S., Dixon, A.J., Harrow, M., Neal, M. and Smith, C.J. 1997e. Stream water quality in acid sensitive upland areas, an example of potential water quality remediation based on groundwater manipulation. Hydrol. Earth System Sci., 1, 185-196.
68. Popper, K. 1994. In search of a better world. Routledge (London), 245pp.
69. Reynolds, B. and Hughes, S. 1989. An ephemeral forest drainage ditch as a source of aluminium to surface waters. Sci. Total Environ., 80, 185-193.
70. Reynolds, B., Neal, C., Hornung, M. and Stevens, P.A. 1986. Baseflow buffering of stream water acidity in five mid-Waleas catchments. J. Hydrol., 87, 167-185.
71. Reynolds, B., Hornung, M. and Hughes, S. 1989. Chemistry of streams draining grassland and forest catchments at Plynlimon, mid Wales. Hydrol. Sci. Bull., 34(6), 667-686.
72. Reynolds, B., Stevens, P.A., Hughes, S., Parkinson, J.A. and Weatherley, N.S. 1995. Stream chemistry impacts of conifer harvesting in Welsh catchments. In Biogeochemical monitoring in small catchments (eds J. Cerny, M. Novak, T. Paces and R.K. Wieder. Kluwer Acad. Press (Dordrecht), 147-170.
73. Reynolds, B., Renshaw, M., Sparks, T.H., Hudson, J.A., Hughes, S., Brittain, S.A. and Kennedy, V.H. 1997. Trends and seasonality in streamwater chemistry in two moorland catchments of the upper River Wye, Plynlimon. Hydrol. Earth System Sci., 1, 571-581.
74. Reynolds, B. 1997. Predicting soil acidification trends at Plynlimon using the SAFE model. Hydrol. Earth System Sci., 1, 717-728.
75. Robson, A.J., 1993. The use of continuous measurement in understanding and modelling the hydrochemistry of the uplands. PhD dissertation, University of Lancaster, Lancaster, Lancashire, UK, 278pp.
76. Robson, A.J. and Neal, C. 1996. Water quality trends at an upland site in Wales, UK, 1983-1993. Hydrol. Processes, 10, 183-203.
77. Robson, A.J., Neal, C. and Smith, C.J. 1990. Hydrograph separation using chemical techniques: an application to catchments in mid-Wales. J. Hydrol., 116, 345-365.
78. Robson, A.J., Jenkins, A. and Neal, C. 1991. Towards predicting future episodic changes in stream chemistry. J. Hydrol., 125, 161-174.
79. Robson, A.J., Neal, C., Smith, C.J. and Hill, S. 1992a. Short term variation in rain and stream water conductivity at a forested site in mid-Wales - implications for water movement. Sci. Total Environ., 119, 1-18.
80. Robson, A.J., Beven, K. and Neal, C. 1992b. Towards identifying sources of subsurface flow: a comparison of components identified by a physically based runoff model and those determined by chemical mixing techniques. Hydrol. Processes, 6, 199-214.
81. Robson, A.J., Neal, C., Hill, S. and Smith, C.J. 1993. Linking variations in short- and medium term stream chemistry to rainfall inputs - some observations for Plynlimon, mid-Wales. J. Hydrol., 144, 291-310.
82. Sverdrup, H., 1986. Geochemistry, the key to understanding environmental chemistry. Sci. Total Environ., 183, 67-88.
83. Taugbol, G. and Neal, C. 1993. Soil and stream water chemistry variations on acidic soils. Application of a cation exchange and mixing model at the catchment level. Sci. Total Environ., 149, 83-95.
84. UKAWRG, 1988. United Kingdom Acid Waters Review Group, second report. Acidity in United Kingdom fresh waters. Her jesty's Stationary Office, London, 1-61.
85. Ward, G., 1997. Postmodernism. NTC Publishing Group (Chicago, Illinois, USA), 196pp.
86. Wilkinson, J., Reynolds, B., Neal, C., Hill, S., Neal, M. and Harrow, M. 1997. Major, minor and trace element composion of cloudwater and rainwater at Plynlimon. Hydrol. Earth System Sci., 1, 557-569.