Hydrological and catchment controls on event‐scale dissolved organic carbon dynamics in boreal headwater streams

2021 ◽  
Author(s):  
Adrienne A. Ducharme ◽  
Nora J. Casson ◽  
Scott N. Higgins ◽  
Karl Friesen‐Hughes
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Headwater Streams ◽  
Carbon Dynamics ◽  
Event Scale

scholarly journals Dissolved Organic Carbon in Headwater Streams and Riparian Soil Organic Carbon along an Altitudinal Gradient in the Wuyi Mountains, China

PLoS ONE ◽  
2013 ◽  
Vol 8 (11) ◽  
pp. e78973 ◽  
Author(s):  
Wei Huang ◽  
William H. McDowell ◽  
Xiaoming Zou ◽  
Honghua Ruan ◽  
Jiashe Wang ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Altitudinal Gradient ◽  
Headwater Streams

scholarly journals Behind the Scenes: Mechanisms Regulating Climatic Patterns of Dissolved Organic Carbon Uptake in Headwater Streams

2018 ◽  
Vol 32 (10) ◽  
pp. 1528-1541 ◽  
Author(s):  
N. Catalán ◽  
J. P. Casas-Ruiz ◽  
M. I. Arce ◽  
M. Abril ◽  
A. G. Bravo ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Headwater Streams ◽  
Carbon Uptake

Effect of forage crop establishment on dissolved organic carbon dynamics and leaching in a hill country soil

2019 ◽  
Vol 35 (3) ◽  
pp. 453-465 ◽  
Author(s):  
Grace Chibuike ◽  
Lucy Burkitt ◽  
Marta Camps‐Arbestain ◽  
Peter Bishop ◽  
Mike Bretherton ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Carbon Dynamics ◽  
Forage Crop ◽  
Hill Country ◽  
Crop Establishment

Effects of intermittency and land use on the in-stream phosphorus and organic carbon uptake

2020 ◽  
Author(s):  
Gabriele Weigelhofer ◽  
Matthias Pucher
Keyword(s):  
Land Use ◽  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Hyporheic Zone ◽  
Agricultural Land ◽  
Headwater Streams ◽  
Phosphorus Release ◽  
Nutrient Concentrations ◽  
Agricultural Land Use ◽  
First Results

<p>Understanding the consequences of the interplay between land use and climate change is among the most pressing challenges of the 21<sup>st</sup> century for river managers. Over the past decades, agricultural land use has altered nutrient concentrations and stoichiometric ratios in stream ecosystems, thereby affecting aquatic biogeochemical cycles and the coupling among carbon, phosphorus, and nitrogen. In addition, the frequency and duration of droughts has increased dramatically across Europe, causing perennial streams to shift to intermittency and changing the capacity of sediments for the uptake and storage of macronutrients.</p><p>Our study aims to understand the effects of drying and re-wetting on the uptake, storage, and release of phosphorus and organic carbon from the benthic and the hyporheic zone of headwater streams under the additional stressor of agricultural land use. In specific, we are interested in the potential coupling and decoupling of phosphorus and dissolved organic carbon cycling in autotrophic and heterotrophic benthic biofilms. We sampled headwater streams before, during, and after the dry period in 2018 and 2019 and performed laboratory experiments with artificial drying and re-wetting and additions of dissolved organic carbon. We measured nutrient uptake and release, microbial biomass, respiration, and the activity of extra-cellular enzymes. The first results show an increased phosphorus release from the sediments immediately after re-wetting, foolowed by a reduced uptake capacity. The uptake of DOC was correlated with phosphorus in autotrophic biofilms, but not in heterotrophic ones.</p>

scholarly journals Dissolved organic carbon dynamics in anaerobic sediments of the Santa Monica Basin

2013 ◽  
Vol 110 ◽  
pp. 253-273 ◽  
Author(s):  
Tomoko Komada ◽  
David J. Burdige ◽  
Sabrina M. Crispo ◽  
Ellen R.M. Druffel ◽  
Sheila Griffin ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Carbon Dynamics ◽  
Anaerobic Sediments ◽  
Santa Monica ◽  
Santa Monica Basin

Seston and Dissolved Organic Carbon Dynamics in a Southern Appalachian Stream

Ecology ◽  
1982 ◽  
Vol 63 (3) ◽  
pp. 824-838 ◽  
Author(s):  
J. Bruce Wallace ◽  
Douglas H. Ross ◽  
Judy L. Meyer
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Carbon Dynamics ◽  
Southern Appalachian
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