Impacts of the North Atlantic Oscillation on stream water chemistry in mid-Wales

Hydrology and Earth System Sciences

Volumn 8, Issue 3, 2004, Pages 409-421

  Ness, L ^a   Neal, C ^b   Davies, T D ^a   Reynolds, B ^b  

^a UNIVERSITY OF EAST ANGLIA   (United Kingdom)

^b CENTRE FOR ECOLOGY AND HYDROLOGY   (United Kingdom)

Author keywords

Aluminium; Calcium; Dissolved organic carbon; Hafren; Magnesium; Nitrate; North Atlantic Oscillation; Plynlimon; Potassium; Stream chemistry; Yttrium

Indexed keywords

CLIMATE EFFECT; DISSOLVED ORGANIC CARBON; FORESTED CATCHMENT; NORTH ATLANTIC OSCILLATION; RAINFALL; STREAMWATER; WATER CHEMISTRY;

CEREDIGION; EASTERN HEMISPHERE; EURASIA; EUROPE; PLYNLIMON; UNITED KINGDOM; WALES; WESTERN EUROPE; WORLD;

EID: 8644242926     PISSN: 10275606     EISSN: None     Source Type: Journal    
DOI: 10.5194/hess-8-409-2004     Document Type: Article

References (33)

1. Boormann, F.H. and Likens, G.E., 1979. Patterns and process in a forested ecosystem. Springer, New York, USA. 226pp.
2. Bradley, D.C. and Ormerod, S.J., 2001. Community persistence among stream invertebrates tracks the North Atlantic Oscillation. J. Anim. Ecol. 70, 987-996.
3. Chapman, P.J., 1994. Hydrogeochemical processes influencing episodic streamwater chemistry in a small headwater catchment, Plynlimon, mid-Wales. PhD thesis, University of London, UK. 416pp.
4. Climatic Research Unit, University of East Anglia, North Atlantic Oscillation index, http://www.cru.uea.ac.uk/cru/data/nao.htm.
5. Eatherall, A., Naden, P.S. and Cooper, D.M., 1998. Simulating carbon flux to the estuary: The first step. Sci. Total Envir., 210, 519-533.
6. Emmett, B.A., Stevens, P.A. and Reynolds, B., 1995. Factors influencing nitrogen saturation in sitka spruce stands in Wales, UK. Water Air Soil Pollut., 85, 1629-1634.
7. Evans, C.D. and Monteith, D.T., 2001. Chemical trends at lakes and streams in the UK Acid Waters Monitoring Network, 1988-2000: evidence for recent recovery, at a national scale. Hydrol. Earth Syst. Sci., 5, 351-366.
8. Evans, C.D., Monteith, D.T. and Harriman, R., 2001. Long-term variability in the deposition of marine ions at west coast sites in the UK Acid Waters Monitoring Network: impacts on surface water chemistry and significance for trend determination. Sci. Total Envir., 265, 115-129.
9. Fitzhugh, R.D., Likens, G.E., Driscoll, C.T., Mitchell, M.J., Groffman, P.M., Fahey, T.J. and Hardy, J.P., 2003. Role of soil freezing events in interannual patterns of stream chemistry at the Hubbard Brook experimental forest, New Hampshire. Environ. Sci. Technol., 37, 1575-1580.
10. Foster, H.J., Lees, M.J., Wheater, H.S., Neal, C. and Reynolds, B., 2001. A hydrochemical modelling framework for combined assessment of spatial and temporal variability in stream chemistry: application to Plynlimon, Wales. Hydrol. Earth Syst. Sci., 5, 49-58.
11. Gillett, N.P., Graf, H.F. and Osborn, T. J., 2003. Climate Change and the North Atlantic Oscillation. In: The North Atlantic Oscillation: Climatic Significance And Environmental Impact, James W. Hurrell, Yochanan Kushnir, Geir Ottersen and M. Visbeck (Eds.), Geophysical Monograph Series. 134.
12. Hornung, M., Stevens, P.A. and Reynolds, B., 1986. The Impact of Pasture Improvement on the Soil Solution Chemistry of Some Stagnopodzols in Mid-Wales. Soil Use Manage., 2, 18-26.
13. Hurrell, J.W., 1995. Decadal trends in the North Atlantic oscillation: regional temperatures and precipitation. Science, 269, 676-679.
14. Irwin, J.G., Campbell, G. and Vincent, K., 2002. Trends in sulphate and nitrate wet deposition over the United Kingdom: 1986-1999. Atmos. Environ., 36, 2867-2879.
15. Kirby, C., Newson, M.D. and Gilman, K., 1991. Plynlimon research: the first two decades, Institute of Hydrology Report No. 109, Institute of Hydrology, Wallinglbrd, UK, 188pp.
16. Likens, G.E. and Boormann, F.H., 1995. Biogeochemistry of a forested ecosystem. Springer, New York, USA. 159pp.
17. Mitchell. T.D., Carter, T.R., Jones, P.D., Hulme, M. and New, M., 2003. A comprehensive set of high-resolution grids of monthly climate for Europe and the globe: the observed record (1901-2000) and 16 scenarios (2001-2100). Tyndall Centre Working Paper 55.
18. Monteith, D.T., Evans, C.D. and Reynolds, B., 2000. Are temporal variations in the nitrate content of UK upland freshwaters linked to the North Atlantic Oscillation? Hydrol. Process., 14, 1745-1749.
19. Neal, C., 1995. Aluminium speciation variations in an acidic upland stream draining the Hafren spruce forest. Plynlimon. Mid-Wales. J. Hydrol., 164, 39-51.
20. Neal, C., 2002a. Assessing environmental impacts on stream water quality: the use of cumulative flux and cumulative flux difference approaches to deforestation of the Hafren Forest, mid-Wales. Hydrol. Earth Syst. Sci., 6, 421-432.
21. Neal, C., 2002b. Nutrient concentrations and fluxes for podzolic and gley soils at Plynlimon, mid-Wales: implications for modelling inorganic nitrogen and phosphorus in upland UK environments, Hydrol. Earth Syst. Sci., 6, 403-420.
22. Neal, C., Robson, A. and Smith, C.J., 1990. Acid neutralization capacity variations for the Hafren Forest stream, mid-Wales - inferences for hydrological processes. J. Hydrol., 121, 85-101.
23. Neal, C., Fisher, R., Smith, C.J., Hill, S., Neal, M., Conway, T., Ryland, G.P. and Jeffrey, H.A., 1992. 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.
24. Neal, C., Wilkinson, J., Neal, M., Harrow, M., Wickham, H., Hill, L. and Morfitt, C., 1997. The hydrochemistry of the headwaters of the river Severn, Plynlimon. Hydrol. Earth Syst. Sci., 1, 583-617.
25. Neal, C., Reynolds, B.. Neal, M., Pugh, B., Hill, L. and Wickham, H., 2001. Long-term changes in the water quality of rainfall, cloud water and stream water for moorland, forested and clear-felled catchments at Plynlimon, mid-Wales. Hydrol. Earth Syst. Sci., 5, 459-476.
26. Neal, C., Reynolds, B., Neal, M., Wickham, H., Hill, L. and Williams, B., 2004. The impact of conifer harvesting on stream water quality: the Afon Hafren, mid-Wales. Hydrol. Earth System. Sci., 8, 503-520.
27. Portis, D.H., Walsh, J.E., El Hamly; M. and Lamb, P.J., 2001. Seasonality of the North Atlantic oscillation. J. Climate. 14, 2069-2078,
28. Reynolds, B., Neal, C., Hornung, M. and Stevens, P.A. 1987, Baseflow buffering of streamwater acidity in five mid-Wales catchments. J. Hydrol., 87, 167-185.
29. Reynolds, B., Fowler. D., Smith, R.I. and Hall, J.R., 1997. Atmospheric inputs and catchment solute fluxes for major ions in five Welsh upland catchments. J. Hydrol., 194, 305-329.
30. Reynolds, B., Lowe, J.A. H., Smith, R.I., Norris, D.A., Fowler, D., Bell, S.A., Stevens. P.A. and Ormerod, S.J., 1999. Acid deposition in Wales: the results of the 1995 Welsh Acid Waters Survey. Environ. Pollut., 105, 251-266.
31. Soulsby, C. and Reynolds, B., 1993. Influence of Soil Hydrological Pathways on Stream Aluminum Chemistry at Llyn-Brianne, Mid-Wales. Environ. Pollut.. 81, 51-60.
32. Wilkinson, J., Reynolds, B., Neal, C., Hill, S., Neal, M. and Harrow, M., 1997. Major, minor and trace element composition of cloudwater and rainwater at Plynlimon. Hydrol. Earth Syst. Sci., 1, 557-569.
33. Wright, R.F., Marchetto, A., Moldan, F., Prechtel, A., Rogora, M., Alewell, C., Cullen, J.M. and Evans, C.D., 2001. Trends in nitrogen deposition and leaching in acid-sensitive streams in Europe. Hydrol. Earth Syst. Sci., 5, 299-310.