Woody debris is related to reach-scale hotspots of lowland stream ecosystem respiration under baseflow conditions

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Woody debris is related to reach-scale hotspots of lowland stream ecosystem respiration under baseflow conditions. / Blaen, P. J.; Kurz, M. J.; Drummond, J. D.; Knapp, J. L. A.; Mendoza-Lera, C.; Schmadel, N. M.; Klaar, M. J.; Jäger, A.; Folegot, S.; Lee-Cullin, J.; Ward, A. S.; Zarnetske, J. P.; Datry, T.; Milner, A. M.; Lewandowski, J.; Hannah, D. M.; Krause, S.

In: Ecohydrology, 23.03.2018.

Research output: Contribution to journalArticle

Harvard

Blaen, PJ, Kurz, MJ, Drummond, JD, Knapp, JLA, Mendoza-Lera, C, Schmadel, NM, Klaar, MJ, Jäger, A, Folegot, S, Lee-Cullin, J, Ward, AS, Zarnetske, JP, Datry, T, Milner, AM, Lewandowski, J, Hannah, DM & Krause, S 2018, 'Woody debris is related to reach-scale hotspots of lowland stream ecosystem respiration under baseflow conditions', Ecohydrology. https://doi.org/10.1002/eco.1952

APA

Blaen, P. J., Kurz, M. J., Drummond, J. D., Knapp, J. L. A., Mendoza-Lera, C., Schmadel, N. M., Klaar, M. J., Jäger, A., Folegot, S., Lee-Cullin, J., Ward, A. S., Zarnetske, J. P., Datry, T., Milner, A. M., Lewandowski, J., Hannah, D. M., & Krause, S. (2018). Woody debris is related to reach-scale hotspots of lowland stream ecosystem respiration under baseflow conditions. Ecohydrology, [e1952]. https://doi.org/10.1002/eco.1952

Vancouver

Author

Blaen, P. J. ; Kurz, M. J. ; Drummond, J. D. ; Knapp, J. L. A. ; Mendoza-Lera, C. ; Schmadel, N. M. ; Klaar, M. J. ; Jäger, A. ; Folegot, S. ; Lee-Cullin, J. ; Ward, A. S. ; Zarnetske, J. P. ; Datry, T. ; Milner, A. M. ; Lewandowski, J. ; Hannah, D. M. ; Krause, S. / Woody debris is related to reach-scale hotspots of lowland stream ecosystem respiration under baseflow conditions. In: Ecohydrology. 2018.

Bibtex

@article{d8b5289d1e6d40ad80e0e7d8de3f19f3,
title = "Woody debris is related to reach-scale hotspots of lowland stream ecosystem respiration under baseflow conditions",
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.",
keywords = "Ecosystem respiration, Hydrological tracer, Solute transport, Stream metabolism, Woody debris",
author = "Blaen, {P. J.} and Kurz, {M. J.} and Drummond, {J. D.} and Knapp, {J. L. A.} and C. Mendoza-Lera and Schmadel, {N. M.} and Klaar, {M. J.} and A. J{\"a}ger and S. Folegot and J. Lee-Cullin and Ward, {A. S.} and Zarnetske, {J. P.} and T. Datry and Milner, {A. M.} and J. Lewandowski and Hannah, {D. M.} and S. Krause",
year = "2018",
month = mar,
day = "23",
doi = "10.1002/eco.1952",
language = "English",
journal = "Ecohydrology",
issn = "1936-0584",
publisher = "Wiley",

}

RIS

TY - JOUR

T1 - Woody debris is related to reach-scale hotspots of lowland stream ecosystem respiration under baseflow conditions

AU - Blaen, P. J.

AU - Kurz, M. J.

AU - Drummond, J. D.

AU - Knapp, J. L. A.

AU - Mendoza-Lera, C.

AU - Schmadel, N. M.

AU - Klaar, M. J.

AU - Jäger, A.

AU - Folegot, S.

AU - Lee-Cullin, J.

AU - Ward, A. S.

AU - Zarnetske, J. P.

AU - Datry, T.

AU - Milner, A. M.

AU - Lewandowski, J.

AU - Hannah, D. M.

AU - Krause, S.

PY - 2018/3/23

Y1 - 2018/3/23

N2 - 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.

AB - 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.

KW - Ecosystem respiration

KW - Hydrological tracer

KW - Solute transport

KW - Stream metabolism

KW - Woody debris

UR - http://www.scopus.com/inward/record.url?scp=85044200189&partnerID=8YFLogxK

U2 - 10.1002/eco.1952

DO - 10.1002/eco.1952

M3 - Article

AN - SCOPUS:85044200189

JO - Ecohydrology

JF - Ecohydrology

SN - 1936-0584

M1 - e1952

ER -