Effects of Urbanization on Stream Flashiness in the I-85 Corridor of the Southeastern Piedmont

Eli Koslofsky
The metro areas of the southeastern Piedmont are rapidly expanding, bringing changes to the hydrology of the watersheds within them. Increased urbanization can have significant effects on stream hydrology within a watershed, including large fluctuations of flow in streams referred to as ?stream flashiness?. Increased stream flashiness has numerous consequences, including water quality degradation, flooding, and destruction of aquatic habitats. This thesis quantifies stream flashiness in urban
more » ... d rural streams and investigates the relationship between flashiness and watershed land cover, particularly the amount and spatial distribution of impervious surfaces. Results show a strong relationship between urbanization and peak flows, but indicate that the underlying geology and other natural/anthropogenic factors complicate the relationship between R-B index and percent impervious surface cover. Results also indicate regional patterns within the southeastern Piedmont, most notably flashier streams in North Carolina compared to Georgia.
doi:10.57709/8633848 fatcat:w7jsbbqzafg3pfqg7v22nwjyey