Pipe-outlet terracing was effective in reducing sediment losses from a field site, but total nitrogen and phosphorus losses with runoff were not significantly different before and after terracing. Median concentrations of dissolved nitrate in several ground-water sampling locations increased after terrace installation. Dissolved nitrate concentrations in ground water decreased significantly after nutrient-management implementation. Findings indicate that agricultural-management practices to improve water quality are most effective if their overall design effects on surface- and ground-water systems are considered in their design.
Citation Information
Publication Year | 1997 |
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Title | Evaluation of agricultural best-management practices in the Conestoga River headwaters, Pennsylvania: A summary report, 1982-90 |
DOI | 10.3133/wsp2493 |
Authors | Patricia L. Lietman |
Publication Type | Report |
Publication Subtype | USGS Numbered Series |
Series Title | Water Supply Paper |
Series Number | 2493 |
Index ID | wsp2493 |
Record Source | USGS Publications Warehouse |
USGS Organization | Pennsylvania Water Science Center |