EARLY HEARING DETECTION AND INTERVENTION VIRTUAL CONFERENCE
MARCH 2-5, 2021
(Virtually the same conference, without elevators, airplane tickets, or hotel room keys)
5/22/2018 | 11:15 AM - 11:30 AM | HYDROLOGIC, MORPHOLOGIC, AND WATER QUALITY EFFECTS OF RURAL DEVELOPMENT IN STREAMS OF THE SOUTHERN BLUE RIDGE MOUNTAINS | 320
HYDROLOGIC, MORPHOLOGIC, AND WATER QUALITY EFFECTS OF RURAL DEVELOPMENT IN STREAMS OF THE SOUTHERN BLUE RIDGE MOUNTAINS
Studying effects of low-density rural development on aquatic systems can elucidate the role of stream stressors on water quality in the absence of large-scale hydrologic changes. We conducted several cross-landscape studies of streams in the exurbanizing but largely rural landscape of the southern Appalachians. Valleys typically feature small farms, rural residences, and riparian alteration, whereas hillslopes feature mature forests with occasional intrusions by recent mountain developments. The region has high topographic and mesoclimate variability. Conversion of forested riparian zones to pastures or grasses profoundly changed channel structure by reducing channel widths and the frequency of step features. Wood counts were low in all streams with nearby human habitation, apparently due to direct wood removal. Sediment yields increased with basin development, the exception was the one urban stream with very low sediment yields. Big river sites suggested continued mobilization of legacy sediments. Specific conductance was idiosyncratic and not well correlated with basin land use. Catchment disturbance strongly influenced dissolved inorganic nitrogen (DIN) export and modified the seasonal pattern of DIN concentration. Water quality changes wrought by low density rural development influenced the presence/absence of focal native stream taxa.
- Landuse
- Landscape
- Riparian
Presentation:
This presentation has not yet been uploaded.
Handouts:
Handout is not Available
Transcripts:
CART transcripts are NOT YET available, but will be posted shortly after the conference
Presenters/Authors
C. Rhett Jackson
(), University of Georgia, rjacks@uga.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Jackson R. Webster
(), Department of Biology, Virginia Tech, Blacksburg, VA, jwebster@VaTech.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Kristen Cecala
(), University of the South, kkcecala@sewanee.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
John R. Frisch
(), University of Minnesotat Duluth, jrfrisch@yahoo.com;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Joseph Kirsch
(), USDA Forest Service, josephkirsch@fs.fed.us;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
John Maerz
(), University of Georgia, jcmaerz@uga.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
David S. Leigh
(), University of Georgia, dleigh@uga.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
James Peterson
(), U.S. Geological Survey, Oregon Cooperative Fish and Wildlife Research Unit, jt.peterson@oregonstate.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Catherine Pringle
(), University of Georgia, cpringle@uga.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Jennifer Knoepp
(), US Forest Service, Southern Research Station, jknoepp@fs.fed.us;
ASHA DISCLOSURE:
Financial -
Nonfinancial -