Search Results - "Skaggs, R. W"

Calibration and validation of DRAINMOD to model bioretention hydrology by Brown, R.A., Skaggs, R.W., Hunt, W.F.

“…► Bioretention hydrology was modeled with DRAINMOD, a widely accepted drainage model. ► Four bioretention cells monitored for 2year periods were used in…”
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Energy and water balance of two contrasting loblolly pine plantations on the lower coastal plain of North Carolina, USA by Sun, G., Noormets, A., Gavazzi, M.J., McNulty, S.G., Chen, J., Domec, J.-C., King, J.S., Amatya, D.M., Skaggs, R.W.

“…During 2005–2007, we used the eddy covariance and associated hydrometric methods to construct energy and water budgets along a chronosequence of loblolly pine…”
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DRAINMOD–DSSAT model for simulating hydrology, soil carbon and nitrogen dynamics, and crop growth for drained crop land by Negm, L.M., Youssef, M.A., Skaggs, R.W., Chescheir, G.M., Jones, J.

“…•A hydrologic, soil C & N dynamics, and crop model has been developed for drained lands.•DRAINMOD, DRAINMOD-NII, CROPGRO and CERES-MZ were fully integrated on…”
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Soil Physical Changes Associated with Forest Harvesting Operations on an Organic Soil by McFero Grace, J., Skaggs, R. W., Cassel, D. K.

“…The influence of forest operations on forest soil and water continues to be an issue of concern in forest management. Research has focused on evaluating forest…”
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A comparison of the watershed hydrology of coastal forested wetlands and the mountainous uplands in the Southern US by SUN, G, MCNULTY, S. G, AMATYA, D. M, SKAGGS, R. W, SWIFT, L. W, SHEPARD, J. P, RIEKERK, H

“…Hydrologic responses to forest management and climate change vary with topography and climatic zone. Long-term hydrologic characteristics of three southern…”
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Calibrating hydric soil field indicators to long-term wetland hydrology by Vepraskas, M.J, He, X, Lindbo, D.L, Skaggs, R.W

“…Jurisdictional wetlands are required to be saturated to the surface for 5% or more of the growing season in 5 out of 10 yr, but practical field methods for…”
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DRAINMOD-GIS: A lumped parameter watershed scale drainage and water quality model by Fernandez, G.P., Chescheir, G.M., Skaggs, R.W., Amatya, D.M.

“…A watershed scale lumped parameter hydrology and water quality model that includes an uncertainty analysis component was developed and tested on a lower…”
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A method to predict soil saturation frequency and duration from soil color by HE, X, VEPRASKAS, M. J, LINDBO, D. L, SKAGGS, R. W

“…Saturation frequency and duration must be estimated to determine if a site is a jurisdictional wetland, and such data also aid in assessing sites for on-site…”
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Method to Assess Climate Change Impacts on Hydrologic Boundaries of Individual Wetlands by Vepraskas, M. J., Skaggs, R. W., Caldwell, P. V.

“…Potential impacts of climate change on the position of the wetland-hydrology boundary were estimated for four sites in the Eastern U.S. Precipitation and…”
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Adapting a Drainage Model to Simulate Water Table Levels in Coastal Plain Soils by He, X., Vepraskas, M. J., Skaggs, R. W., Lindbo, D. L.

“…Seasonal saturation in soils is expensive and time consuming to document, but the information is needed for land use assessments. Hydrologic models can be used…”
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Long-Term Water Table Dynamics of Forested Wetlands: Drivers and their Effects on Wetland Hydrology in The Southeastern Atlantic Coastal Plain by Amatya, D. M., Chescheir, G. M., Williams, T. M., Skaggs, R. W., Tian, S.

“…Sustainable management of forested wetlands requires an understanding of water Table (WT) dynamics affected by rainfall and evapotranspiration (ET) and…”
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Development and preliminary evaluation of an integrated field scale model for perennial bioenergy grass ecosystems in lowland areas by Tian, S., Youssef, M.A., Chescheir, G.M., Skaggs, R.W., Cacho, J., Nettles, J.

“…Computer models are useful tools for evaluating environmental and economic sustainability of proposed dedicated cellulosic grass ecosystems for biofuel…”
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Comparison of Methods for Estimating REF-ET by Amatya, D. M, Skaggs, R. W, Gregory, J. D

“…The Penman-Monteith, Makkink, Priestley-Taylor, Turc, Hargreaves-Samani, and Thornthwaite methods were used to estimate reference evapotranspiration (REF-ET)…”
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DRAINMOD-based tools for quantifying reductions in annual drainage flow and nitrate losses resulting from drainage water management on croplands in eastern North Carolina by Negm, L.M., Youssef, M.A., Chescheir, G.M., Skaggs, R.W.

“…•A simple tool (regression models) for nitrogen credit trading systems was developed.•The tool developed for the region of North Carolina (NC) Coastal…”
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Effects of Site Preparation for Pine Forest/Switchgrass Intercropping on Water Quality by Muwamba, A., Amatya, D. M., Ssegane, H., Chescheir, G.M., Appelboom, T., Tollner, E.W., Nettles, J. E., Youssef, M. A., Birgand, F., Skaggs, R. W., Tian, S.

“…A study was initiated to investigate the sustainability effects of intercropping switchgrass (Panicum virgatum L.) in a loblolly pine (Pinus taeda L.)…”
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Effects of controlled drainage on forest water quality by Amatya, D.M. (North Carolina State University, Raleigh, NC.), Gilliam, J.W, Skagg, R.W, Lebo, M.E, Campbell, R.G

“…The effects of controlled drainage (CD) on hydrology and water quality are presented for three eastern North Carolina watersheds in loblolly pine (Pinus taeda…”
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EFFECTS OF CONTROLLED DRAINAGE ON STORM EVENT HYDROLOGY IN A LOBLOLLY PINE PLANTATION by Amatya, D. M., Gregory, J. D., Skaggs, R. W.

“…Controlled drainage involves setting outlet weirs at different levels seasonally, depending on treatment objectives, so that during a storm event, the raised…”
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Hydrologic Modeling of a Drained Pine Plantation on Poorly Drained Soils by Amatya, Devendra Man, Skaggs, Richard Wayne

“…Abstract Three experimental watersheds in eastern North Carolina have been continuously monitored since 1988 to study long-term hydrology of loblolly pine…”
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Calibration of paired watersheds: Utility of moving sums in presence of externalities by Ssegane, Herbert, Amatya, Devendra M., Muwamba, Augustine, Chescheir, George M., Appelboom, Tim, Tollner, E.W., Nettles, Jami E., Youssef, Mohamed A., Birgand, François, Skaggs, R.W.

“…Historically, paired watershed studies have been used to quantify the hydrological effects of land use and management practices by concurrently monitoring 2…”
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Effects of controlled drainage on the hydrology of drained pine plantations in the North Carolina coastal plain by Amatya, Devendra M., Skaggs, R.W., Gregory, J.D.

“…This paper presents results of a 5 year study to characterize the hydrology (rainfall, interception, evapotranspiration (ET), soil water storage, drainage…”
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