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Journal article
Woody debris is related to reach‐scale hotspots of lowland stream ecosystem respiration under baseflow conditions
Ecohydrology, v 11(5), pp e1952-n/a
2018
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Stream metabolism is a fundamental, integrative indicator of aquatic ecosystem functioning. However, it is not well understood how heterogeneity in physical channel form, particularly in relation to and caused by in‐stream woody debris, regulates stream metabolism in lowland streams. We combined conservative and reactive stream tracers to investigate relationships between patterns in stream channel morphology and hydrological transport (form) and metabolic processes as characterized by ecosystem respiration (function) in a forested lowland stream at baseflow. Stream reach‐scale ecosystem respiration was related to locations ("hotspots") with a high abundance of woody debris. In contrast, nearly all other measured hydrological and geomorphic variables previously documented or hypothesized to influence stream metabolism did not significantly explain ecosystem respiration. Our results suggest the existence of key differences in physical controls on ecosystem respiration between lowland stream systems (this study) and smaller upland streams (most previous studies) under baseflow conditions. As such, these findings have implications for reactive transport models that predict biogeochemical transformation rates from hydraulic transport parameters, for upscaling frameworks that represent biological stream processes at larger network scales, and for the effective management and restoration of aquatic ecosystems.
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Details
- Title
- Woody debris is related to reach‐scale hotspots of lowland stream ecosystem respiration under baseflow conditions
- Creators
- P J Blaen - University of BirminghamM.J. Kurz - Helmholtz Centre for Environmental ResearchJ.D. Drummond - Centro de Estudios Avanzados de BlaneJ.L.A. Knapp - University of TübingenC. Mendoza Lera - RiverLyN.M. Schmadel - Indiana UniversityM.J. Klaar - University of LeedsS. Folegot - University of BirminghamJ. Lee Cullin - MICHIGAN STATE UNIVERSITY EAST LANSING USAA.S. Ward - Indiana UniversityJ.P. Zarnetske - Michigan State UniversityT. Datry - Irstea, UR RiverLy, centre de Lyon-Villeurbanne; Villeurbanne 69625 FranceA.M. Milner - University of BirminghamJ. Lewandowski - Leibniz Institute of Freshwater Ecology and Inland FisheriesD.M. Hannah - University of BirminghamSvenja Krause - UNIVERSITY OF BIRMINGHAM GBR
- Publication Details
- Ecohydrology, v 11(5), pp e1952-n/a
- Publisher
- Wiley
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Institute for Women's Health and Leadership; Academy of Natural Sciences of Drexel University
- Web of Science ID
- WOS:000437275000001
- Scopus ID
- 2-s2.0-85044200189
- Other Identifier
- 991019169564304721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Ecology
- Environmental Sciences
- Water Resources