| Abstrakt: |
On the cover: Upstream of a covered bridge along Fishing Creek in Pennsylvania, Hilary Dozier, a USGS hydrologist, measures streamflow as part of a synoptic water quality study to inform nitrogen reduction strategies in a representative agricultural karst setting of the Chesapeake Bay watershed. The complex hydrologic network in agricultural carbonate watersheds presents a challenge for targeting and monitoring of conservation practices. See J.W. Clune et al., “Complex hydrology and variability of nitrogen sources in a karst watershed,” https://doi.org/10.1002/jeq2.20578. Photo by John Clune. |
Plný text