The importance of unsaturated zone biogeochemical processes in determining groundwater composition, southeastern Australia

Springer Science and Business Media LLC - Tập 17 - Trang 1359-1374 - 2009
Matthew Edwards1,2, John Webb1
1Department of Environmental Geoscience, La Trobe University, Melbourne, Australia
2ENSR Australia, Melbourne, Australia

Tóm tắt

Analysis of soil, soil water and groundwater in the Mount William Creek catchment, southeastern Australia, shows that Mg2+ and Ca2+ within infiltrating rainfall are rapidly depleted by plant uptake and adsorption on clay minerals. Na+ and K+ may exhibit minor enrichment at shallow depths but are quickly readsorbed, so that cation/Cl– ratios typical of groundwater are observed in soil water within the upper 200 cm of the soil profile for all species. The concentrations of K+ and Ca2+ in soil and groundwater are more depleted than Na+ and Mg2+ due to preferential uptake by vegetation. Removal of organic matter results in a continuing, long-term export of all major cations from the soil profiles. The processes of biogeochemical fractionation within the unsaturated zone rapidly modify the cation/Cl– ratios of infiltrating rainfall to values characteristic of seawater. These mechanisms may have reached steady state, because groundwaters with seawater ion/Cl– ratios are thousands of years old; the exchange sites on the soil clays are probably saturated, so cations supplied in rainfall are exported in organic matter and incorporated into recharge infiltrating into the groundwater. Much of the chemical evolution of groundwater traditionally attributed to processes within the aquifer is complete by the time recharge occurs; this evolutionary model may have broad application.

Tài liệu tham khảo

Acworth I, Jankowski J (2001) Salt source for dryland salinity: evidence from an upland catchment on the Southern Tablelands of New South Wales. Aust J Soil Res 39:39–59 Arad A, Evans R (1987) The hydrogeology, hydrogeochemistry and environmental isotopes of the Campaspe River aquifer system, north-central Victoria, Australia. J Hydrol 95:63–86 Artaxo P, Orsini C (1987) Pixe and receptor models applied to remote aerosol source apportionment in Brazil. Nucl Instrum Methods Phys Res B22:259–263 Benedetti MF, Dia A, Riotte J, Chabaux F, Gerard M, Boulegue J, Fritz B, Chauvel C, Bulourde M, Deruelle B, Ildefonse P (2003) Chemical weathering of basaltic lava flows undergoing extreme climatic conditions: the water geochemistry record. Chem Geol 201:1–17 Bennetts DA, Webb JA, Stone DJM, Hill DM (2006) Understanding the salinisation process for groundwater in an area of south-eastern Australia, using hydrochemical and isotopic evidence. J Hydrol 323:178–192 Bennetts DA, Webb JA, McCaskill M, Zollinger R (2007) Dryland salinity processes within the discharge zone of a local groundwater system, Southeastern Australia. Hydrogeol J 15:1197–1210 Blackburn G, McLeod S (1983) Salinity in atmospheric precipitation in the Murray-Darling drainage basin, Australia. Aust J Soil Res 21:411–434 Blake R (1989) The origin of high sodium bicarbonate waters in the Otway Basin, Victoria, Australia. In: Miles (ed) Water-rock interaction. Balkema, Rotterdam, The Netherlands Bormann ME (2004) Temporal and spatial trends in rainwater chemistry across central and western Victoria. Honours Thesis, La Trobe University, Melbourne, Australia, 86 pp Bureau of Meteorology (2003) Climate data for stations 079105 and 079034. Climate and Consultancy Section, Victorian Regional Office, Bureau of Meteorology, Melbourne Cardenal J, Benavente J, Cruz-Sanjulian JJ (1994) Chemical evolution of groundwater in Triassic gypsum-bearing carbonate aquifers (Las Alpujarras, southern Spain). J Hydrol 161:3–30 Cartwright I, Weaver TR, Fulton S, Nichol C, Reid M, Cheng X (2004) Hydrogeochemical and isotopic constraints on the origins of dryland salinity, Murray Basin, Victoria, Australia. Appl Geochem 19(8):1233–1254 Chorover J, Kretzschmar R, Garcia-Pichel F, Sparks D (2007) Soil biogeochemical processes within the Critical Zone. Elements 3:321–326 Cayley RA, Taylor DH (2001) Ararat: 1:100,000 map area geological report. Geological Survey of Victoria Report 115, Geological Survey of Victoria, Melbourne, 324 pp de Mello WZ (2001) Precipitation chemistry in the coast of the metropolitan region of Rio de Janeiro, Brazil. Environ Pollut 114:235–242 Dogramaci SS, Herczeg AL (2002) Strontium and carbon isotope constraints on carbonate-solution interactions and inter-aquifer mixing in groundwaters of the semi-arid Murray Basin, Australia. J Hydrol 262:50–67 Drever JI, Smith CL (1978) Cyclic wetting and drying of the soil zone as an influence on the chemistry of groundwater in arid terrains. Am J Sci 278:1448–1454 Dyson PR (1983) Dryland salting and groundwater discharge in the Victorian Uplands. Proc R Soc Vic 95(3):113–116 Dyson PR, Jenkin JJ (1981) Hydrological characteristics of soils relevant to dryland salting in central Victora. Soil Conservation Authority of Victoria, Melbourne Edwards MD (2006) A hydrological, hydrogeological and hydrogeochemical study of processes leading to land and water salinisation in the Mount William Creek Catchment, southeastern Australia. PhD Thesis, LaTrobe University, Melbourne, 263 pp Edwards MD, Webb JA (2006) The effects of lithology, soil and vegetation on recharge estimates in an upland catchment affected by dryland salinity: Mt William Creek, western Victoria. 10th Murray Darling Basin Groundwater Workshop, Canberra, September 2006 Elliot T, Andrews JN, Edmunds WM (1999) Hydrochemical trends, palaeorecharge and groundwater ages in the fissured Chalk aquifer of the London and Berkshire Basins, UK. Appl Geochem 14:333–363 Fink D, Hotchkis M, Hua Q, Jacobsen G, Smith AM, Zoppi U, Child D, Mifsud C, van der Gaast H, Williams A, Williams M (2004) The ANTARES AMS facility at ANSTO. NIM B Fryar AE, Mullican WF, Macko SA (2001) Groundwater recharge and chemical evolution in the southern high plains of Texas, USA. Hydrogeol J 9:522–542 Garcia-Pichel F, Johnston SL, Youngkin D, Belnap J (2003) Small scale vertical distribution of bacterial biomass and diversity in biological soil crusts from arid lands in the Colorado Plateau. Microb Ecol 46:312–321 Garrels RM, Mackenzie FT (1967) Origin of the chemical compositions of some springs and lakes. In: Gould RF (ed) Equilibrium concepts in natural water systems. American Chemical Society, Washington, DC, pp 222–242 Guler C, Thyne GD (2004) Hydrologic and geologic factors controlling surface and groundwater chemistry in Indian Wells-Owens Valley area, southeastern California, USA. J Hydrol 285:177–198 Harrison A (1993) Hydrogeological assessment of salinity processes: Mount William Creek Catchment. Report 1993/21, Royal Water Commission, Melbourne Heathcote JA (1985) Carbonate chemistry of recent chalk groundwater in a part of East Anglia, UK. J Hydrol 78:215–227 Herczeg AL, Dogramaci SS, Leaney FWJ (2001) Origin of dissolved salts in a large, semi-arid groundwater system: Murray Basin, Australia. Mar Freshw Res 52:41–52 Hopmans P, Flinn DW, Farrell PW (1987) Nutrient dynamics of forested catchments in southeastern Australia and changes in water quality and nutrient exports following clearing. For Ecol Manage 20:209–231 Hudson RO, Golding DL (1997) Controls on groundwater chemistry in subalpine catchments in the southern interior of British Columbia. J Hydrol 201:1–20 Hutton JT, Leslie TI (1958) Accession of non-nitrogenous ions dissolved in rainwater to soils in Victoria. Aust J Agric Res 9:59–84 Jankowski J, Acworth I (1993) The hydrogeochemistry of groundwater in fractured bedrock aquifers beneath dryland salinity occurrences at Yass, NSW. AGSO J Aust Geol Geophys 14:279–285 Jobbagy EG, Jackson RB (2004) The uplift of soil nutrients by plants: biogeochemical consequences across scales. Ecology 85:2380–2389 Kimblin RT (1995) The chemistry and origin of groundwater in Triassic sandstone and Quaternary deposits, northwest England and some UK comparisons. J Hydrol 172:293–311 Lawrence CR (1975) Geology, hydrodynamics and hydrochemistry of the southern Murray Basin. Memoirs 30, Geological Survey of Victoria, Melbourne Love AJ, Herczeg AL, Leaney FW, Stadter MF, Dighton JC, Armstrong D (1994) Groundwater residence time and palaeohydrology in the Otway Basin, South Australia: 2H, 18O and 14C data. J Hydrol 153:157–187 Ma C, Eggleton RA (1999) Cation exchange capacity of kaolinite. Clay Clay Miner 47(2):174–180 Macumber PG (1991) Interaction between groundwater and surface systems in northern Victoria. Department of Conservation and Environment, Melbourne Moss PD, Edmunds WM (1992) Processes controlling acid attenuation in the unsaturated zone of a Triassic sandstone aquifer (U.K.), in the absence of carbonate minerals. Appl Geochem 7:573–583 Moulton KL, West J, Berner RA (2000) Solute flux and mineral mass balance approaches to the quantification of plant effects on silicate weathering. Am J Sci 300:539–570 Parkhurst DL, Appelo CAJ (1999) User’s Guide to PHREEQC (Version 2): a computer program for speciation, batch-reaction, one-dimensional transport, and inverse geochemical calculations. US Geol Surv Water Resour Invest Rep 99–4259, 310 pp Rademacher LK, Clarke JF, Bryant Hudson G, Erman DC, Erman NA (2001) Chemical evolution of shallow groundwater as recorded by springs, Sagehen basin: Nevada County, California. Chem Geol 179:37–51 Rayment GE, Higginson FR (1992) Australian laboratory handbook of soil and water chemical methods. Inkata, Melbourne Rosen M, Jones S (1998) Controls on the chemical composition of groundwater from alluvial aquifers in the Wanaka and Wakatipu basins, Central Otago, New Zealand. Hydrogeol J 6:264–281 Salama RB, Wells ASM, Farrington P, Bartle GA (1993) The chemical evolution of groundwater in the aquifer systems of the Yilgarn Craton of Western Australia, CSIRO Division of Water Resources, Perth Simpson JH, Herczeg AL (1994) Delivery of marine chloride in precipitation and removal by rivers in the Murray-Darling Basin, Australia. J Hydrol 154:323–350 Sparks DL (2005) Metal and oxyanion sorption on naturally occurring oxide and clay mineral surfaces. In: Grassian VH (ed) Environmental catalysis, Taylor and Francis, London, pp 3–36 Spears DA, Reeves MJ (1975) The influence of superficial deposits on groundwater quality in the Vale of York. Q J Eng Geol 8:255–269 Stewart HTL, Flinn DW (1985) Nutrient losses from broadcast burning of Eucalyptus debris in north-east Victoria. Aust For Res 15:321–332 Stuyfzand PJ (1999) Patterns in groundwater chemistry resulting from groundwater flow. Hydrogeol J 7:15–27 Sutcliffe JF (1962) Mineral salts absorption in plants. Pergamon, London, 194 pp Taylor JC, Hinczak I (2001) Rietveld made easy: a practical guide to the understanding of the method and successful phase quantifications. Sietronics, Canberra, Australia Tickell SJ, Humphrys WG (1987) Groundwater resources and associated salinity problems of the Victorian part of the Riverine Plain. Department of Industry, Technology and Resources Toth J (1999) Groundwater as a geologic agent: an overview of the causes, processes, and manifestations. Hydrogeol J 7:1–14 White AF, Blum AE, Schulz MS, Huntington TG, Peters NE, Stonestrom DA (2002) Chemical weathering of the Panola granite: solute and regolith elemental fluxes and the weathering rate of biotite. In: Hellmann R, Wood SA (eds) Water-rock interactions, ore deposits and environmental geochemistry: a tribute to David A Crerar. Geol Soc Spec Publ 7:37–60 White AF, Schulz MS, Vivit DV, Blum AE, Stonestrom DA (2006) Controls on soil pore water solutes: an approach for distinguishing between biogenic and lithogenic processes. J Geochem Explor 88:363–366