H Flumes have proven to be well suited to measuring watershed runoff from agricultural plots and pastures.
In the collage below, the USDA Agricultural Research Service – J. Phil Campbell Sr. Natural Resources Conservation Center (JPCNSRCC) in Watkinsville, GA details the installation of a fiberglass 4.5-foot H flume at the W2 location at their North Unit Outdoor Hydrological Laboratory.
About JPCNSRCC
JPCNSRCC is tasked with:
“ develop[ing] and transfer[ring] environmentally sustainable and profitable agricultural systems to land owners and manager in order to protect the natural resources base, build accord with non-agricultural sectors, and support healthy rural economies.”
JPCNSRCC’s North Unit Outdoor Hydrological Laboratory is used to design, implement, monitor, and evaluate watershed management practices and to predict watershed response to alterative land use and management practices. Instrumentation at the unit includes six H flumes and two V-notch weirs.
The H flumes measure:
- Flows on cropped watershed runoff (P1)
- Grazed watershed runoff (W2)
- Spring discharge (W2 Spring Flume)
- Pond outfall
- Conventional-till runoff
- No-till runoff.
The V-notch weirs measure grazed watershed runoff (W1) and pond inflow.
Source: USDA Agricultural Research Service – J. Phil Campbell Sr. Natural Resources Conservation Center
