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Title: Interflow dynamics on a low relief forested hillslope: Lots of fill, little spill

Abstract

We evaluated the occurrence of perching and interflow over and within a sandy clay loam argillic horizon within first-order, low -relief, forested catchments at the Savannah River Site (SRS) in the Upper Coastal Plain of South Carolina. We measured soil hydraulic properties, depths to the argillic layer, soil moisture, shallow groundwater behavior, interflow interception trench flows, and streamflow over a 4-year period to explore the nature and variability of soil hydraulic characteristics, the argillic "topography", and their influence on interflow generation. Perching occurred frequently within and above the restricting argillic horizons during our monitoring period, but interflow was infrequent due to microtopographic relief and associated depression storage on the argillic layer surface. High percolation rates through the argillic horizon, particularly through soil anomalies, also reduced the importance of interflow. Interflow generation was highly variable across eleven segments of a 121 m interception trench. Hillslopes were largely disconnected from stream behavior during storms. Hillslope processes were consistent with the fill-and-spill hypothesis and featured a sequence of distinct thresholds: vertical wetting front propagation to the argillic layer; saturation of the argillic followed by local perching; filling of argillic layer depressions; and finally connectivity of depressions leading to interflow generation. Analysis of trenchmore » flow data indicated a cumulative rainfall threshold of 60 mm to generate interflow, a value at the high end of the range of thresholds reported elsewhere.« less

Authors:
 [1];  [2];  [3];  [4];  [5];  [2];  [2];  [2]
  1. Univ. of Georgia, Athens, GA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Univ. of Georgia, Athens, GA (United States)
  3. Univ. of Saskatchewan, Saskatoon, SK (Canada); Luxembourg Institute of Science and Technology, Esch-sur-Alzette (Luxembourg)
  4. Univ. of Saskatchewan, Saskatoon, SK (Canada); Univ. of Aberdeen, Aberdeen (United Kingdom)
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Climate Change Science Institute and Environmental Sciences Division
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Sustainable Transportation Office. Bioenergy Technologies Office
OSTI Identifier:
1247925
Alternate Identifier(s):
OSTI ID: 1341155; OSTI ID: 1439987
Grant/Contract Number:  
AC05-00OR22725; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Hydrology
Additional Journal Information:
Journal Volume: 534; Journal Issue: C; Journal ID: ISSN 0022-1694
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; Interflow; Argillic layer; Low relief; Fill-and-spill

Citation Formats

Du, Enhao, Rhett Jackson, C., Klaus, Julian, McDonnell, Jeffrey J., Griffiths, Natalie A., Williamson, Margaret F., Greco, James L., and Bitew, Menberu. Interflow dynamics on a low relief forested hillslope: Lots of fill, little spill. United States: N. p., 2016. Web. doi:10.1016/j.jhydrol.2016.01.039.
Du, Enhao, Rhett Jackson, C., Klaus, Julian, McDonnell, Jeffrey J., Griffiths, Natalie A., Williamson, Margaret F., Greco, James L., & Bitew, Menberu. Interflow dynamics on a low relief forested hillslope: Lots of fill, little spill. United States. https://doi.org/10.1016/j.jhydrol.2016.01.039
Du, Enhao, Rhett Jackson, C., Klaus, Julian, McDonnell, Jeffrey J., Griffiths, Natalie A., Williamson, Margaret F., Greco, James L., and Bitew, Menberu. Wed . "Interflow dynamics on a low relief forested hillslope: Lots of fill, little spill". United States. https://doi.org/10.1016/j.jhydrol.2016.01.039. https://www.osti.gov/servlets/purl/1247925.
@article{osti_1247925,
title = {Interflow dynamics on a low relief forested hillslope: Lots of fill, little spill},
author = {Du, Enhao and Rhett Jackson, C. and Klaus, Julian and McDonnell, Jeffrey J. and Griffiths, Natalie A. and Williamson, Margaret F. and Greco, James L. and Bitew, Menberu},
abstractNote = {We evaluated the occurrence of perching and interflow over and within a sandy clay loam argillic horizon within first-order, low -relief, forested catchments at the Savannah River Site (SRS) in the Upper Coastal Plain of South Carolina. We measured soil hydraulic properties, depths to the argillic layer, soil moisture, shallow groundwater behavior, interflow interception trench flows, and streamflow over a 4-year period to explore the nature and variability of soil hydraulic characteristics, the argillic "topography", and their influence on interflow generation. Perching occurred frequently within and above the restricting argillic horizons during our monitoring period, but interflow was infrequent due to microtopographic relief and associated depression storage on the argillic layer surface. High percolation rates through the argillic horizon, particularly through soil anomalies, also reduced the importance of interflow. Interflow generation was highly variable across eleven segments of a 121 m interception trench. Hillslopes were largely disconnected from stream behavior during storms. Hillslope processes were consistent with the fill-and-spill hypothesis and featured a sequence of distinct thresholds: vertical wetting front propagation to the argillic layer; saturation of the argillic followed by local perching; filling of argillic layer depressions; and finally connectivity of depressions leading to interflow generation. Analysis of trench flow data indicated a cumulative rainfall threshold of 60 mm to generate interflow, a value at the high end of the range of thresholds reported elsewhere.},
doi = {10.1016/j.jhydrol.2016.01.039},
journal = {Journal of Hydrology},
number = C,
volume = 534,
place = {United States},
year = {Wed Jan 27 00:00:00 EST 2016},
month = {Wed Jan 27 00:00:00 EST 2016}
}

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Cited by: 31 works
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Works referencing / citing this record:

Experimental Investigation of Lateral Subsurface Flow Depending on Land Use and Soil Cultivation
journal, April 2019

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Streamflow Generation From Catchments of Contrasting Lithologies: The Role of Soil Properties, Topography, and Catchment Size
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Characteristics of Nitrogen Loss through Surface-Subsurface Flow on Red Soil Slopes of Southeast China
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