Auxiliary Material for
When do plants modify fluvial processes? Plant-hydraulic interactions under variable flow and sediment
supply rates
Rebecca Manners1, Andrew C. Wilcox1, Li Kui2, Anne Lightbody3, John Stella4, Leonard Sklar5
1 Department of Geosciences, University of Montana, Missoula, MT
2 Graduate Program in Environmental Science, State University of New York College of Environmental
Science and Forestry, Syracuse, NY
3 Department of Earth Sciences, University of New Hampshire, Durham, NH
4 Department of Forest and Natural Resources Management, State University of New York College of
Environmental Science and Forestry, Syracuse, NY
5 Department of Geosciences, San Francisco State University, San Francisco, CA
Journal of Geophysical Research, Earth Surface
Introduction
Auxiliary material includes non-interpolated velocity profiles around individual plants (fs01.jpg and
fs02.jpg), additional information on the derivation of equation [5] (text01.txt), and information on
velocity and Reynolds stress profiles measured during the patch runs (Runs 6-10) (fs03.jpg and fs04.jpg,
respectively). Information on how this data was collected and processed may be found in the main text.
1. fs01.jpg Non-interpolated streamwise velocity (𝑢̅) profiles upstream (gray) and downstream (black) of
individual cottonwood plants for stages 2 and 5; run and plant height identified at right. Additionally, we
show the four non-interpolated velocity profiles for the unvegetated bed measured at 13 m (solid gray
line), 15.5 m (dashed gray line), 18 m (dashed black line), and 20 m ( solid black line).
2. fs02.jpg Non-interpolated streamwise velocity (𝑢̅) profiles upstream (gray) and downstream (black) of
individual tamarisk plants for stages 2 and 5; run and plant height identified at right. Additionally, we
show the four non-interpolated velocity profiles for the unvegetated bed measured at 13 m (solid gray
line), 15.5 m (dashed gray line), 18 m (dashed black line), and 20 m ( solid black line).
3. txt01.docx Derivation of equation [5]
4. fs03.jpg Vertical profiles of the streamwise (𝑢̅) velocity component measured during Phase A stage 2
(a and c) and stage 5 (b and d) immediately upstream of the patch and within patches (Runs 6–10).
Profiles within patches represent the average of 2–3 profiles. Error bars (1 standard deviation) are shown
at 1 cm increments. The average of four centerline profiles for the unvegetated condition (Run 11) is also
shown with shading representing 1 standard deviation.
5. fs04.jpg Vertical profiles of Reynolds stress measured during Phase A stage 2 (a and c) and stage 5 (b
and d) immediately upstream of the patch and within patches (Runs 6–10). Profiles within patches
represent the average of 2–3 profiles. Error bars (1 standard deviation) are shown at 1 cm increments. The
average of four centerline profiles for the unvegetated condition (Run 11) is also shown with shading
representing 1 standard deviation.