Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Gregory D. Jennings"'
Publikováno v:
Ecological Engineering. 73:770-777
Stream restoration projects constructed in urbanizing watersheds provided an opportunistic setting to determine how channel bedform influenced nitrate removal by denitrification. We measured denitrification rates in streambed sediments seasonally at
Publikováno v:
JAWRA Journal of the American Water Resources Association. 51:68-83
The Stream Performance Assessment (SPA), a new rapid assessment method, was applied to 93 restored, 21 impaired, 29 reference, and 13 reference streams with some incision throughout North Carolina. Principal component analysis (PCA) indicated restore
Publikováno v:
JAWRA Journal of the American Water Resources Association. 50:626-638
In urban watersheds, stormwater inputs largely bypass the buffering capacity of riparian zones through direct inputs of drainage pipes and lowered groundwater tables. However, vegetation near the stream can still influence instream nutrient transform
Autor:
Jason M. Zink, Gregory D. Jennings
Publikováno v:
JAWRA Journal of the American Water Resources Association. 50:1354-1358
Channel roughness, often described by Manning's n, is used to represent the amount of resistance that flow encounters, and has direct implications on velocity and discharge. Ideally, n is calculated from a long-term record of channel discharge and hy
Autor:
Barbara A. Doll, James Blackwell, Jean Spooner, Mark Fernandez, Joseph Usset, Gregory D. Jennings, David L. Penrose
Publikováno v:
Water, Vol 8, Iss 4, p 143 (2016)
Water; Volume 8; Issue 4; Pages: 143
Water; Volume 8; Issue 4; Pages: 143
Five rapid visual stream assessment methods were applied to 65 restored streams in North Carolina, and the results were correlated with measured macroinvertebrate community metrics to evaluate predictive ability. The USEPA Rapid Bioassessment Protoco
Autor:
Daniel E. Line, Dana L. Hoag, Deanna L. Osmond, Don Meals, Mark L. McFarland, Jean Spooner, Mazdak Arabi, Andrew N. Sharpley, Gregory D. Jennings, A. E. Luloff
Publikováno v:
Journal of Soil and Water Conservation. 67:122A-127A
N utrient enrichment and sedimentation of water resources is a significant problem in the United States and globally (Carpenter et al. 2011; Dubrovsky et al. 2010; Hilton et al. 2006). Specifically, in the United States, over 6,908 water bodies are l
Publikováno v:
JAWRA Journal of the American Water Resources Association. 48:762-773
Zink, Jason M., Gregory D. Jennings, and G. Alexander Price, 2012. Morphology Characteristics of Southern Appalachian Wilderness Streams. Journal of the American Water Resources Association (JAWRA) 48(4): 762-773. DOI: 10.1111/j.1752-1688.2012.00647.
Publikováno v:
Journal of Hydrology. 411:185-196
Summary This study evaluated the potential impacts of sub-bankfull flows produced by stormwater control measures (SCMs) on stream geomorphic stability. In part, design standards for SCMs include peak flow attenuation to maintain pre-development flow
Publikováno v:
Journal of the North American Benthological Society. 28:80-92
Channel reconfiguration is a popular but controversial approach to river restoration, and ecological responses to channel reconfiguration have not been rigorously assessed. We compared physical-habitat variables, taxonomic and functional-trait divers
Publikováno v:
Journal of Soil and Water Conservation. 64:144-154
Sediment and turbidity are among the most common pollutants affecting surface waters, resulting in reduced reservoir capacity, degradation of aquatic organism habitat, and decreased aesthetic value. Construction activities, including roadway projects