Spatial variation of root-zone and shallow vadose-zone drainage on a loamy glacial till in a sub-humid climate

Schuh, W. M.; Meyer, Rena; Sweeney, M. D.; Gardner, John C.

doi:10.1016/0022-1694(93)90251-4

Cited by 15 publications

(7 citation statements)

References 19 publications

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“…Computer analyses by Tosomeen (1991), for example, indicated that depression focusing in a wide range of different climatic, soil, and topographic conditions could result typically in a 5 to 30 percent increase in recharge and that surface runon is a critical factor in causing this focused recharge. Schuh et al (1993aSchuh et al ( , 1993b indicated that microtopographic surface elevation differences caused water to concentrate locally resulting in greater recharge at the cm scale, similar to results of the tracer test conducted for this study.…”

Section: Discussionsupporting

confidence: 75%

“…It is well recognized that surface and subsurface runoff to topographic lowlands can focus recharge at the subregional and local scales (Meyboom, 1966;Miller et al, 1985;Fortin et al, 1991) and at microtopographical scales (Schuh et al, 1993a(Schuh et al, , 1993b. Variations in recharge rates by more than a factor of two over distances of tens to hundreds of meters have been inferred from distributions of environmental tracers in some unconfined aquifers (e.g., Robertson and Cherry, 1989;Dunkle et al, 1993;Reilly et al, 1994;Solomon et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

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EFFECTS OF TOPOGRAPHY AND SOIL PROPERTIES ON RECHARGE AT TWO SITES IN AN AGRICULTURAL FIELD¹

Delin¹,

Healy²,

Landon³

et al. 2000

J American Water Resour Assoc

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Field experiments were conducted from 1992 to 1995 to estimate ground water recharge rates at two sites located within a 2.7-hectare agricultural field. The field lies in a sand plain setting in central Minnesota and is cropped continuously in field corn. The sites are located at a topographically high (upland) site and a topographically low (lowland) site in an effort to quantify the effects of depression focusing of recharge. Three site-specific methods were used to estimate recharge rates: well hydrograph analysis, chlorofluorocarbon age dating, and an unsaturated zone water balance.All three recharge methods indicated that recharge rates at the lowland site (annual average of all methods of 29 cm) exceeded those at the upland site (annual average of 18 cm). On an annual basis, estimates by the individual methods ranged from 12 to 44 percent of precipitation at the upland site and from 21 to 83 percent at the lowland site. The difference in recharge rates between the sites is primarily attributed to depression focusing of surface water runon at the lowland site. However, two other factors were also important: the presence of thin lamellae at the upland site, and coarser textured soils below a depth of 1.5 m at the lowland site. (KEY TERMS: focused recharge; chlorofluorocarbon age dating; hydrograph analysis; ground water.)

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Section: Discussionsupporting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

EFFECTS OF TOPOGRAPHY AND SOIL PROPERTIES ON RECHARGE AT TWO SITES IN AN AGRICULTURAL FIELD¹

Delin¹,

Healy²,

Landon³

et al. 2000

J American Water Resour Assoc

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“…Depression-focused recharge, as described by other researchers in similar undulating glacial till landscapes (Lissey 1971;Schuh et al 1993;Seelig and Richardson 1994), appears to be an important mechanism of solute redistribution in this landscape as well. Site-specific recharge appears to be highly sensitive to small differences in relative surface elevation at this site, a conclusion shared by Schuh et al (1993).…”

Section: Discussionsupporting

confidence: 63%

“…Redistribution of water and associated solutes affects crop yield via losses of valuable fertilizer nutrients (Farrell et al 1996;Manning et al 2001b) and negatively impacts groundwater quality (Schuh et al 1993;Seelig and Richardson 1994). This has obvious agronomic, economic and environmental implications.…”

mentioning

confidence: 99%

Bromide redistribution as influenced by landscape morphology and pedogenic properties in a variable glacial till landscape: A qualitative examination

Whetter¹,

Bullock²,

Fuller³

2008

Can. J. Soil. Sci.

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Whetter, D. A., Bullock, P. R. and Fuller, L. G. 2008. Bomide redistribution as influenced by landscape morphology and pedogenic properties in a variable glacial till landscape: A qualitative examination. Can. J. Soil Sci. 88: 477Á490. Redistribution of water and associated solutes in undulating to hummocky landscapes affects crop yield via losses of valuable nutrients and negatively impacts groundwater quality. The objective of this study was to determine the influence of qualitative soil-landscape complexes on vertical and lateral redistribution of solutes in a variable glacial till landscape under zero tillage agricultural management by employing a bromide tracer. Tracer plots were established in the fall of 1999 within three sites comprising three representative soil-slope associations. Values of soil development indicators (A horizon thickness, solum thickness, depth to CaCO 3 , profile development index and organic carbon) generally increased from crest to midslope to depression. Further to this, the occurrence and thickness of eluvial and illuvial horizons increased from crest to midslope to depression. Well-developed, clay-coated blocky Bt horizons with vertical cracking and overlying Ae horizons in depressions appeared to have favoured rapid, downward vertical bromide redistribution. Crest positions were the least anisotropic and vertical redistribution was more important than lateral redistribution at this position. A combination of topographic and pedologic factors resulted in more lateral redistribution at the midslope position relative to crests and depressions. Bromide recovery rates in the top 60 cm of the soil profile indicated that most of the recovered bromide remained within that depth following spring runoff, but had mostly leached below that depth after the growing season, particularly at the depression position. Low bromide recovery rates in the top 30 cm following spring runoff, indicated that reduced availability of fall-applied nutrients for early crop growth could be expected at crest and depression positions following spring runoff. Bromide redistribution was important during both spring recharge and over the growing season at the depression position. Bromide movement below crop rooting depths and into shallow groundwater sources provides evidence that fall-applied nutrients can enter groundwater following both spring melt and growing season runoff in depressional landscape positions, especially in recharge areas. Management practices to reduce over-application of soluble nutrients and surface water accumulation, or both, in depressional areas may be an effective means to lower the risk of groundwater contamination with soluble nutrients without jeopardizing crop yield potential across the majority of the landscape positions in undulating to hummocky glacial till terrain.Key words: Solute redistribution, bromide tracer, soil properties, topography, landscape Whetter, D. A., Bullock, P. R. et Fuller, L. G. 2008. É tude qualitative de la redistribution du bromure en fonction du relief et...

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“…Previous work in this region found that surficial aquifers are recharged primarily by depression‐focused events (Lissey 1971; Keller and Vanderkamp 1988; Seelig and Richardson 1994). In loamy soils in east‐central North Dakota, Schuh et al (1993a, 1993b) found that high‐intensity summer rains produced the greatest amounts of recharge, which varied from no recharge to 20 cm/year as a result of microtopographical differences <2 cm. However, in sandy soils in southeastern North Dakota, Derby and Knighton (2001) found the largest local recharge and solute movements occurred during spring snow melt.…”

Section: Introductionmentioning

confidence: 99%

Field‐Scale Relationships Among Soil Properties and Shallow Groundwater Quality

2012

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It is important to understand the link between land surface/soil properties and shallow groundwater quality. To that end, soil properties and near-water-table groundwater chemistry of a shallow, unconfined aquifer were measured on a 100-m grid on a 64-ha irrigated field in southeastern North Dakota. Soil properties and hydrochemistry were compared via multivariate analysis that included product-moment correlations and factor analysis/principal component analysis. Topographic low areas where the water table was in close proximity to the soil surface generally had higher apparent electrical conductivity (ECa ) and higher percent silt and clay than higher positions on the landscape. The majority of the groundwater was characterized by Ca- and Mg-HCO3 type water and was associated with topographic high areas with lower ECa and net groundwater recharge. Small topographic depressions were areas of higher ECa (net groundwater discharge) where salts that precipitated via evapotranspiration and evaporative discharge dissolved and leached to the groundwater during short-term depression-focused recharge events. At this site, groundwater quality and soil ECa were related to surface topography. High-resolution topography and EC(a) measurements are necessary to characterize the land surface/soil properties and surficial groundwater quality at the field-scale and to delineate areas where the shallow groundwater is most susceptible to contamination.

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Spatial variation of root-zone and shallow vadose-zone drainage on a loamy glacial till in a sub-humid climate

Cited by 15 publications

References 19 publications

EFFECTS OF TOPOGRAPHY AND SOIL PROPERTIES ON RECHARGE AT TWO SITES IN AN AGRICULTURAL FIELD¹

EFFECTS OF TOPOGRAPHY AND SOIL PROPERTIES ON RECHARGE AT TWO SITES IN AN AGRICULTURAL FIELD¹

Bromide redistribution as influenced by landscape morphology and pedogenic properties in a variable glacial till landscape: A qualitative examination

Field‐Scale Relationships Among Soil Properties and Shallow Groundwater Quality

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Spatial variation of root-zone and shallow vadose-zone drainage on a loamy glacial till in a sub-humid climate

Cited by 15 publications

References 19 publications

EFFECTS OF TOPOGRAPHY AND SOIL PROPERTIES ON RECHARGE AT TWO SITES IN AN AGRICULTURAL FIELD1

EFFECTS OF TOPOGRAPHY AND SOIL PROPERTIES ON RECHARGE AT TWO SITES IN AN AGRICULTURAL FIELD1

Bromide redistribution as influenced by landscape morphology and pedogenic properties in a variable glacial till landscape: A qualitative examination

Field‐Scale Relationships Among Soil Properties and Shallow Groundwater Quality

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Product

Resources

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EFFECTS OF TOPOGRAPHY AND SOIL PROPERTIES ON RECHARGE AT TWO SITES IN AN AGRICULTURAL FIELD¹

EFFECTS OF TOPOGRAPHY AND SOIL PROPERTIES ON RECHARGE AT TWO SITES IN AN AGRICULTURAL FIELD¹