Discovering the importance of lateral CO2 transport from a temperate spruce 
forest

Fiedler, S.; Höll, B. S.; Jungkunst, H. F.

doi:10.1016/j.scitotenv.2006.03.038

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Discovering the importance of lateral CO₂ transport from a temperate spruce forest

MPS-Authors

/persons/resource/persons62424

Jungkunst, H. F.
Department Biogeochemical Processes, Prof. E.-D. Schulze, Max Planck Institute for Biogeochemistry, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Fiedler, S., Höll, B. S., & Jungkunst, H. F. (2006). Discovering the importance of lateral CO₂ transport from a temperate spruce forest. Science of the Total Environment, 368(2-3), 909-915. doi:10.1016/j.scitotenv.2006.03.038.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000E-D40D-2

Abstract

Our study investigated the concentration of dissolved carbon at the point when water leaves the pedosphere and whether this amount represents a significant proportion of terrestrial carbon cycling. The investigations were carried out in a temperate forest catchment (Black Forest, Germany) over a period of I year. The annual export of dissolved C compounds (14.4 g C m(-2) year I) was dominated by CO₂ (9.7 vs. 4.7 g C m(-2) year(-1) DOC). Even though the direct CO₂ degassing at the spring was inferior (0.4 kg C year(-1)), considerably lower CO₂ concentrations were measured 17 m downstream of the spring. This shows that a large proportion of dissolved CO₂ (93%) originating from the pedosphere is not captured anymore within a short distance from the spring. The measured lateral C-transport was in the same order of magnitude as reported for the net ecosystem exchange (NEE) observed for German spruce forests (-4 to -55 g C m(-2) year(-1)). Therefore, the results clearly demonstrated that the lateral transport of dissolved carbon can be a significant part of terrestrial carbon budgets and for this study site CO₂ was dominating this 'indirect' pathway. However, for generalisation, it is important to extend this investigation to other landscapes and climatic zones. (c) 2006 Elsevier B.V All rights reserved. [References: 30]