Seasonal variations of terrestrial Dissolved Organic Carbon loading in response to rainfall events
- Huijiao Qiao, Jian Xu, Jilin Yan
- Corresponding Author
- Huijiao Qiao
Available Online March 2016.
- https://doi.org/10.2991/iceti-16.2016.44How to use a DOI?
- DOC, Rainfall, Agricultural land-uses, Antecedent precipitation, Different Seasons
- Dissolved organic carbon (DOC) loading from lands to rivers in response to rainfall events are the major carbon sources to aquatic ecosystem. We used high-resolution measurements to determine the runoff exports of DOC from the Chippewa River and watershed which was largely dominated by agricultural land-uses. It was found that DOC concentrations in spring were higher than in autumn and discharges in spring affected by snowmelt were larger and varied more widely than in autumn in this mixed watershed. We focused on the effect of antecedent 10-day rainfall on DOC variation and exports for the different magnitudes rainfall events. It showed that the antecedent precipitation (field moisture conditions) greatly determined the extent of DOC export. It was also shown that the DOC-Discharge distributions for storm-events were generally asymmetric, whereby they were positively skewed and it was greatly different between different seasons.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Huijiao Qiao AU - Jian Xu AU - Jilin Yan PY - 2016/03 DA - 2016/03 TI - Seasonal variations of terrestrial Dissolved Organic Carbon loading in response to rainfall events BT - 2016 International Conference on Engineering and Technology Innovations PB - Atlantis Press UR - https://doi.org/10.2991/iceti-16.2016.44 DO - https://doi.org/10.2991/iceti-16.2016.44 ID - Qiao2016/03 ER -