2003
DOI: 10.1007/s00267-003-0018-1
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A GIS Model of Subsurface Water Potential for Aquatic Resource Inventory, Assessment, and Environmental Management

Abstract: / Biological, chemical, and physical attributes of aquatic ecosystems are often strongly influenced by groundwater sources. Nonetheless, widespread access to predictions of subsurface contributions to rivers, lakes, and wetlands at a scale useful to environmental managers is generally lackRiver, lake, and wetland ecosystems are strongly influenced by routing of source waters because relative conmbutions of precipitation, runoff, through-flow, and groundwater shape seasonal hydrography, chemical prop erties, th… Show more

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Cited by 35 publications
(31 citation statements)
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References 18 publications
(17 reference statements)
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“…Riparian buffers that seem well positioned according to surface topography can be ineffective when subsurface flow goes around the buffer or deep beneath the biologically active soils of the buffer zone (Denver 1991, Altman and Parizek 1995, Speiran 2010. Methods for quantifying key constraints on subsurface flow (e.g., Gerla 1999, Baker et al 2003, Kellogg et al 2008) could be incorporated to improve model results. Even without such improvements, we did observe strong and statistically significant buffer effects in the Coastal Plain and Piedmont study watersheds, which confirms that our simplifying assumptions are useful.…”
Section: Directions For Further Researchmentioning
confidence: 99%
“…Riparian buffers that seem well positioned according to surface topography can be ineffective when subsurface flow goes around the buffer or deep beneath the biologically active soils of the buffer zone (Denver 1991, Altman and Parizek 1995, Speiran 2010. Methods for quantifying key constraints on subsurface flow (e.g., Gerla 1999, Baker et al 2003, Kellogg et al 2008) could be incorporated to improve model results. Even without such improvements, we did observe strong and statistically significant buffer effects in the Coastal Plain and Piedmont study watersheds, which confirms that our simplifying assumptions are useful.…”
Section: Directions For Further Researchmentioning
confidence: 99%
“…In the meantime, flow paths based on surface topography should give better results than fixed-distance approaches, which include no flow path information at all. Future improvements might include more realistic algorithms for predicting surface water flow (e.g., Tarboton 1997) or including constraints on subsurface flux (e.g., Baker et al 2003).…”
Section: Limitations and Potential Improvementsmentioning
confidence: 99%
“…Indeed, 76.4 billion gallons of groundwater are being withdrawn daily, with agricultural irrigation accounting for almost 75% of that total (Maupin and Barber 2005). Even in the Great Lakes basin, where almost 90% of the United States' surface fresh water is located, groundwater is critical for the basin's hydrology and ecological health (Baker et al 2003;Hoaglund et al 2002). Although quantity is critical to maintain flows and water levels, groundwater quality also is threatened due to changing land uses.…”
Section: Discussionmentioning
confidence: 99%