Physical and stoichiometric controls on stream respiration in a headwater stream

Abstract - as a conservative tracer, resazurin as a proxy for aerobic respiration, and one of the following nutrient treatments: (a) N, (b) N+ + + + P. Nutrient treatments were considered to be known system modifications that alter metabolism, and statistical tests helped identify the relationships between reach-scale hydrologic transport and respiration metrics. We found that as discharge changed significantly between rounds and across stoichiometric treatments, (a) transient storage mainly occurred in pools lateral to the main channel and was proportional to discharge, and (b) microbial respiration remained similar between rounds and across stoichiometric treatments. Our results contradict the notion that hydrologic transport alone is a dominant control on biogeochemical processing and suggest that complex interactions between hydrology, resource supply, and biological community function are responsible for driving in-stream respiration.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Physical and stoichiometric controls on stream respiration in a headwater stream ; volume:20 ; number:15 ; year:2023 ; pages:3353-3366 ; extent:14 ; Biogeosciences ; 20, Heft 15 (2023), 3353-3366 (gesamt 14)

Classification and Topics

• Classification: Geowissenschaften

Contributors, Places and Time

• Creator: Dorley, Jancoba ; Singley, Joel ; Covino, Tim ; Singha, Kamini ; Gooseff, Michael ; Van Horn, David ; González-Pinzón, Ricardo

Further information

• DOI: 10.5194/bg-20-3353-2023
• URN: urn:nbn:de:101:1-2023081704583378597888
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 10:51 AM CEST