Journal of Geophysical Research: Biogeosciences RESEARCH ARTICLE 10.1029/2017JG004212 Key Points: • Fine particle exchange with storage zones was dominated by surface rather than hyporheic storage in both restored and unrestored streams • Higher particle exchange did not result in more retention in the restored stream due to high resuspension rates and shorter residence times • Less net particle immobilization was observed in a restored versus unrestored urban stream
Correspondence to: J. D. Drummond,
[email protected]
Citation: Drummond, J. D., Larsen, L. G., González-Pinzón, R., Packman, A. I., & Harvey, J. W. (2018). Less fine particle retention in a restored versus unrestored urban stream: Balance between hyporheic exchange, resuspension, and immobilization. Journal of Geophysical Research: Biogeosciences, 123. https://doi.org/ 10.1029/2017JG004212 Received 6 OCT 2017 Accepted 3 APR 2018 Accepted article online 12 APR 2018
Less Fine Particle Retention in a Restored Versus Unrestored Urban Stream: Balance Between Hyporheic Exchange, Resuspension, and Immobilization J. D. Drummond1,2,3 and J. W. Harvey3
, L. G. Larsen3,4
, R. González-Pinzón5
, A. I. Packman2
,
1
Integrative Freshwater Ecology Group, Centre for Advanced Studies of Blanes (CEAB-CSIC), Blanes, Spain, 2Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL, USA, 3U.S Geological Survey, Reston, VA, USA, 4 Department of Geography, University of California, Berkeley, CA, USA, 5Department of Civil Engineering, University of New Mexico, Albuquerque, NM, USA
Abstract
Stream restoration goals include reducing erosion and increasing hyporheic exchange to promote biogeochemical processing and improve water quality. Little is known, however, about fine particle dynamics in response to stream restoration. Fine particles ( > < < >
Local scale Solute piston velocity, V0 h Particle immobilization velocity, V0 h,P
> =
Note. RTD = residence time distribution.
fine particles (
