We measured annual discharges of water, sediments, and nutrients from 10 watersheds with differing proportions of agricultural lands in the Piedmont physiographic province of the Chesapeake Bay drainage. Flow-weighted mean concentrations of total N, nitrate, and dissolved silicate in watershed discharges were correlated with the proportion of cropland in the watershed. In contrast, concentratio...

A watershed's water quality is influenced by contaminant-transport pathways unique to each landscape. Accurate information on contaminant-pathways could provide a basis for mitigation through well-targeted approaches. This study determined dynamics of nitrate-N, total P, Escherichia coli, and sediment during a runoff event in Tipton Creek, Iowa. The watershed, under crop and livestock productio...

While more attention has been paid in recent years to urban point source pollution control through the establishment of wastewater treatment plants in many developing countries, no considerable planning nor any serious measures have been taken to control urban non-point source pollution (urban stormwater runoff). The present study is a screening analysis to investigate the pollution loads in ur...

Drainage is one form of facility that must be designed as a drainage system for the flow water area in order to meet needs community. From different perspective, this functions drain from surface bodies. A good provided management, especially with changes land use resulting increased flow. One can solution eco-drainage. In study, eco-drainage concept applied residential location Bumi Serpong Da...

Plants, by influencing water fluxes across the ecosystem–vadose zone–aquifer continuum, can leave an imprint on salt accumulation and distribution patterns. We explored how the conversion of native grasslands to oak plantations affected the abundance and distribution of salts on soils and groundwater through changes in the water balance in naturally salt-affected landscapes of Hortobagy (Hungar...

A dynamic simulation model of salt accumulation on irrigated lands is presented. The original version of the model is part of a large-scale socio-economic model of irrigation-based regional development. The model introduced in this paper is a systemic one in the sense that it integrates four major sub-processes of rootzone salinization: irrigation, drainage, groundwater discharge and groundwate...

This paper uses the results of river suspended sediment flux (SSF) analysis to propose a new hydrological method for quantitatively estimating the river bed and drainage basin (sheet erosion, rill and gully erosion) components of total erosion intensity in river basins. The suggested method is based on the establishment of the functional power connection between mean monthly water discharges (W...

networks on surface runoff from agricultural catchments Levavasseur F., Bailly J.S., Lagacherie P., Colin F., Rabotin M. a UMR 1221 LISAH F-34035, INRA, Montpellier, France. b UMR 1221 LISAH F-34035, AgroParisTech, Montpellier, France. c UMR TETIS F-34093, AgroParisTech, Montpellier, France. d UMR 1221 LISAH F-34035, Montpellier SupAgro, Montpellier, France. Abstract The study of runoff is a cr...