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ABSTRACT: A National Pilot Project (NPP) on Livestock and the Environment was initiated in 1992 to help provide solutions to environmental problems associated with livestock production. A major development of the NPP was the Comprehensive Economic and Environmental Optimization Tool-Livestock and Poultry (CEEOT-LP), an integrated modeling system designed to produce economic and environmental indicators for alternative policy scenarios applied to intensive livestock production watersheds. The system consists of a farm-level economic model (FEM) and two environmental models: the field-scale APEX model and the watershed-level SWAT model. To date, CEEOT-LP has been applied to two watersheds in Texas and one in Iowa....
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Floodplain surficial soil samples (10 cm depth) were collected from 18 streams in the urbanized Piedmont region of northern Virginia, representing a chronosequence of time (1-10 yrs.) since stream restoration as well as unrestored and reference streams. The samples were analyzed for total carbon (TC), total nitrogen (TN) and total phosphorus (TP) storage, whereas CO2 mineralization potential and equilibrium phosphorus concentration (EPC0) were measured as metrics of nutrient and carbon loss. Samples also were analyzed for soil moisture, pH, particle size, organic matter content, and degree of phosphorus saturation.
    map background search result map search result map Data of floodplain soil carbon and nutrient retention along a chronosequence of urban stream restorations in Northern Virginia (2022) Data of floodplain soil carbon and nutrient retention along a chronosequence of urban stream restorations in Northern Virginia (2022)