Investigating Groundwater-Surface Water Interactions in a Coastal Tidal Wetland Using Radon(222Rn)
Abstract
The determination of groundwater-surface water interactions is an important process in the hydrological cycles and the worlds water balance. Research focused on groundwater-surface water interactions can be used to characterize the evolution of the wetland's water cycle, which plays an important role in the management of water resources. In addition, groundwater plays an important role in the functioning of wetlands. For example, in dry seasons, the groundwater aquifers replenish wetlands (P.Martinez-Santos et al., 2018).This process ensures the flow in the wetland and protects the ecological environment around it. The interaction of groundwater and surface water has become a popular topic of research because of its significance in a rational management and exploitation of the water resources. The exchange of groundwater and surface water is due to the difference between groundwater table and surface water elevation (Wmiter et al.,1998; Healy, 2012). Specifically, if the groundwater elevation is higher than the wetland elevation, the groundwater can discharge into the wetland. Limited research has been done on the connectivity of groundwater and surface water in the tidal wetland of Kooragang Island, Hunter River Estuary, Newcastle, Australia. Therefore, the groundwater tracer radon (222Rn) is used to assess the groundwater and surface water interactions in the tidal wetland.
Keywords
Full Text:
PDFReferences
Burnett WC, Dulaiova H, Stringer C, et al. Submarine groundwater discharge: Its measurement and influence on the coastal zone[J]. J. Coast. Res. 2006, 1: 35-38.
Burnett W C, Peterson R, Moore W S, et al. Radon and radium isotopes as tracers of submarine groundwater discharge–results from the Ubatuba, Brazil SGD assessment intercomparison[J]. Estuarine, Coastal and Shelf Science, 2008, 76(3): 501-511.
Burnett W C, Santos I R, Weinstein Y et al. Remaining uncertainties in the use of Rn-222 as a quantitative tracer of submarine groundwater discharge[J]. Iahs Publication, 2007, 312: 109.
Cable J E, Burnett W C, Chanton J P, et al. Estimating groundwater discharge into the northeastern Gulf of Mexico using radon-222[J]. Earth and Planetary Science Letters, 1996, 144(3-4): 591-604.
Corbett D R, Burnett W C, Cable P H, et al. Radon tracing of groundwater input into Par Pond, Savannah River site[J]. Journal of Hydrology, 1997, 203(1-4):209-227.
Cook P G, Wood C, White T, et al. Groundwater inflow to a shallow, poorly-mixed wetland estimated from a mass balance of radon[J]. Journal of Hydrology, 2008, 354(1-4): 213-226.
Dimova N T, Burnett W C, Chanton J P, et al. Application of radon-222 to investigate groundwater discharge into small shallow lakes[J]. Journal of Hydrology, 2013, 486: 112-122.
Dimova N T, Burnett W C. Evaluation of groundwater discharge into small lakes based on the temporal distribution of radon‐ 222[J]. Limnology and Oceanography, 2011, 56(2): 486-494.
Dulaiova H, Peterson R, Burnett W C, et al. A multi-detector continuous monitor for assessment of 222Rn in the coastal ocean[J]. Journal of Radioanalytical and Nuclear Chemistry, 2005, 263(2): 361-363.
Dulaiova H, Burnett W C. Radon loss across the water‐ air interface (Gulf of Thailand) estimated experimentally from 222Rn‐ 224Ra[J]. Geophysical Research Letters, 2006, 33(5).
Ferone J M, Devito K J. Shallow groundwater–surface water interactions in pond–peatland complexes along a Boreal Plains topographic gradient[J]. Journal of Hydrology, 2004, 292(1-4): 75-95.
Hoehn E, Von Gunten H R. Radon in groundwater: A tool to assess infiltration from surface waters to aquifers[J]. Water resources research, 1989, 25(8): 1795-1803.
Hofmann H, Gilfedder B S, Cartwright I. A novel method using a silicone diffusion membrane for continuous 222Rn measurements for the quantification of groundwater discharge to streams and rivers[J]. Environmental science & technology, 2011, 45(20): 8915-8921.
Johannes R E. Ecological significance of the submarine discharge of groundwater[J]. MARINE ECOL.- PROG. SER., 1980, 3(4): 365-373.
Kluge T, Ilmberger J, Von Rohden C, et al. Tracing and quantifying groundwater inflow into lakes using radon-222[J]. 2007.
Kluge T, Von Rohden C, Sonntag P, et al. Localising and quantifying groundwater inflow into lakes using high-precision 222Rn profiles[J]. Journal of hydrology, 2012, 450: 70-81.
Lee JM, Kim G. A simple and rapid method for analyzing radon in coastal and ground waters using a radon-in-air monitor[J]. Journal of environmental radioactivity, 2006, 89(3): 219-228.
DOI: https://doi.org/10.18686/pes.v4i4.1529
Refbacks
- There are currently no refbacks.
