WorldCat Identities

Skaggs, R. W.

Overview
Works: 56 works in 102 publications in 1 language and 702 library holdings
Roles: Author, Editor, Other
Classifications: HD1694.N8, 333.91009756 S
Publication Timeline
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Most widely held works by R. W Skaggs
Agricultural drainage( Book )

8 editions published in 1999 in English and held by 122 WorldCat member libraries worldwide

Effect of agricultural land development on drainage waters in the North Carolina Tidewater Region( Book )

1 edition published in 1981 in English and held by 69 WorldCat member libraries worldwide

A water management model for shallow water table soils by R. W Skaggs( Book )

3 editions published in 1978 in English and held by 43 WorldCat member libraries worldwide

An evaluation of the potential for using drainage control to reduce nitrate loss from agricultural fields to surface waters by J. W Gilliam( Book )

3 editions published in 1978 in English and held by 41 WorldCat member libraries worldwide

Effect of agricultural land development on drainage waters in the North Carolina Tidewater region by R. W Skaggs( Book )

5 editions published in 1980 in English and held by 37 WorldCat member libraries worldwide

Analysis of stormwater infiltration ponds on the North Carolina Outer Banks by George Maynard Chescheir( Book )

4 editions published in 1990 in English and held by 32 WorldCat member libraries worldwide

The effect of variation in hydraulic conductivity on water table drawdown by W. J Bentley( Book )

2 editions published in 1989 in English and held by 32 WorldCat member libraries worldwide

An evaluation of the use of waste heat for soil warming in the Southeast by R. W Skaggs( Book )

2 editions published in 1974 in English and held by 31 WorldCat member libraries worldwide

Water table control and subsurface irrigation in mineral and high organic coastal plain soils by R. W Skaggs( Book )

4 editions published in 1972 in English and held by 28 WorldCat member libraries worldwide

Effects of agricultural water table management on drainage water quality by Robert O Evans( Book )

3 editions published in 1989 in English and held by 28 WorldCat member libraries worldwide

Final report : development of methods to determine lateral effect of highway drainage systems on wetland hydrology by R. W Skaggs( Book )

2 editions published in 2006 in English and held by 28 WorldCat member libraries worldwide

A method was developed to estimate the lateral effect of a single drainage ditch on wetland hydrology. The method can be use to calculate the distance of influence of a single ditch constructed through a wetland, where the distance of influence is defined as the width of a strip adjacent to the ditch that is drained such that it will no longer satisfy the wetland hydrologic criterion. Simulation analyses were conducted with DRAINMOD to define the minimum, or threshold, drainage intensity that would result in failure of a site to satisfy the wetland hydrologic criterion. Analyses were conducted for five hydric soils spanning a wide range of profile hydraulic transmissivities. DRAIMOD was used to predict water table fluctuations between parallel ditches for a 50-year period of climatologically record. For each soil, simulations were conducted for a range of ditch spacings and depths to determine the combinations that would result in the land midway between the ditches just barely satisfying the wetland hydrologic criterion. Analyses were conducted for climatological conditions for three locations in eastern North Carolina. Results for Wilmington, North Carolina showed that the threshold drainage intensities would result in water table drawdown from an initially ponded surface to a depth of 25 cm in approximately 6 days. That is, ditch depths and spacings sufficient to lower the water table from the surface to a depth of 25 cm in approximately 6 days would result in hydrologic conditions that would just barely satisfy the wetland hydrologic criterion for that location. The threshold time is denoted as T sub 25 and is used as a surrogate for quantifying the water table drawdown rate of sites that barely satisfy the wetland hydrologic criterion. T sub 25 was found to depend somewhat on drain depth, but was essentially constant for all five of the soils examined. Similar results were obtained for the other two locations but, because of differences in weather and in the growing season, the threshold time (T sub 25) was found to be dependent on location. The T sub 25 value is also dependent on surface depressional storage, decreasing with increasing storage. The discovery that water table conditions barely satisfying the wetland hydrologic criterion are well correlated to the time required for water table drawdown of 25 cm (T sub 25 values) makes it possible to predict the effects of subsurface drains on wetland hydrology. The lateral effect of a single ditch on wetland hydrology can be computed by using T sub 25 values in solutions to the Boussinesq equation for water table drawdown due to drainage to a single drain. Data to test the methods developed in this research were collected at two wetland mitigation sites in eastern North Carolina. One site was at Mildred Woods in Edgecombe County and the other near the town of Pinetown in Beaufort County. Water tables were measured at several several locations on transects perpendicular to drainage ditches on both sites. Data were collected for the three-year period 2002-2004 on one transect at the Mildred Woods site and on two transects at the Pinetown site. The data are being analyzed in Phase 2 of this project and will be used to both test the model and to determine the lateral effects based on long-term analyses
A water management model for artificially drained soils by R. W Skaggs( Book )

4 editions published in 1980 in English and held by 24 WorldCat member libraries worldwide

Final report : development of methods to determine lateral effect of highway drainage systems on wetland hydrology - phase 2 by Brian Phillips( Book )

2 editions published in 2006 in English and held by 23 WorldCat member libraries worldwide

Optimum drainage for corn production by R. W Skaggs( Book )

3 editions published in 1983 in English and held by 20 WorldCat member libraries worldwide

The simulation model DRAINMOD was used to determine the effect of surface and subsurface drainage on corn production for two soils in eastern North Carolina. The model uses historic climatological data to predict the day-by-day, hour-by-hour water table and soil water status for a given drainage system design. Apporximate methods, based on the stress-day-index concept, are used in the model to predict the effect of soil water stresses on corn yields. The methods include the effects of both excessive and deficient soil water conditions, as well as the influence of delays in planting date on yields. Rains and Portsmouth sandy loam soils were analyzed in this study. Simulations were conducted for both good and poor surface drainage and for subsurface drain spacings ranging from 5 m to 300 m. Most of the simulation studies were conducted for a 26-year period of record from the Wilson, N.C. weather station. Additional simulations were conducted for the Rains soil for five other eastern N.C. weather stations to evalute the effect of location differences on predicted yield responses. Economic analyses were made to identify the drainage alternatives needed to maximize profits from corn production on the two soils
Effects of water management and land use practices on the hydrology and water quality in the Albemarle-Pamlico region by George Maynard Chescheir( Book )

2 editions published in 1990 in English and held by 20 WorldCat member libraries worldwide

Controlled drainage management guidelines for improving drainage water quality by Robert O Evans( Book )

2 editions published in 1991 in English and held by 15 WorldCat member libraries worldwide

An approximate method for determining the hydraulic conductivity function of unsaturated soil by R. W Skaggs( Book )

4 editions published in 1970 in English and held by 15 WorldCat member libraries worldwide

Economics of controlled drainage and subirrigation systems by Robert O Evans( Book )

2 editions published in 1988 in English and held by 11 WorldCat member libraries worldwide

Water supplies for subirrigation by Robert O Evans( Book )

2 editions published in 1987 in English and held by 11 WorldCat member libraries worldwide

Development of methods to determine lateral effect of highway drainage systems on wetland hydrology - phase 2 by Brian Phillips( Book )

3 editions published in 2006 in English and held by 8 WorldCat member libraries worldwide

 
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Agricultural drainage
Alternative Names
Skaggs, R. Wayne

Skaggs, Wayne

Languages
English (61)

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