A connection to deep groundwater alters ecosystem carbon fluxes and budgets: Example from a Costa Rican rainforest. Genereux, D. P., Nagy, L. A., Osburn, C. L., & Oberbauer, S. F. Geophysical Research Letters, 40(10):2066–2070, May, 2013. ![A connection to deep groundwater alters ecosystem carbon fluxes and budgets: Example from a Costa Rican rainforest [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Field studies of watershed carbon fluxes and budgets are critical for understanding the carbon cycle, but the role of deep regional groundwater is poorly known and field examples are lacking. Here we show that discharge of regional groundwater into a lowland Costa Rican rainforest has a major influence on ecosystem carbon fluxes. This influence is observable through chemical, isotopic, and flux signals in groundwater, surface water, and air. Not addressing the influence of regional groundwater in the field measurement program and data analysis would give a misleading impression of the overall carbon source or sink status of the rainforest. In quantifying a carbon budget with the traditional “small watershed” mass balance approach, it would be critical at this site and likely many others to consider watershed inputs or losses associated with exchange between the ecosystem and the deeper hydrogeological system on which it sits.
@article{genereux_connection_2013,
title = {A connection to deep groundwater alters ecosystem carbon fluxes and budgets: {Example} from a {Costa} {Rican} rainforest},
volume = {40},
issn = {1944-8007},
shorttitle = {A connection to deep groundwater alters ecosystem carbon fluxes and budgets},
url = {http://onlinelibrary.wiley.com/doi/10.1002/grl.50423/abstract},
doi = {10.1002/grl.50423},
abstract = {Field studies of watershed carbon fluxes and budgets are critical for understanding the carbon cycle, but the role of deep regional groundwater is poorly known and field examples are lacking. Here we show that discharge of regional groundwater into a lowland Costa Rican rainforest has a major influence on ecosystem carbon fluxes. This influence is observable through chemical, isotopic, and flux signals in groundwater, surface water, and air. Not addressing the influence of regional groundwater in the field measurement program and data analysis would give a misleading impression of the overall carbon source or sink status of the rainforest. In quantifying a carbon budget with the traditional “small watershed” mass balance approach, it would be critical at this site and likely many others to consider watershed inputs or losses associated with exchange between the ecosystem and the deeper hydrogeological system on which it sits.},
language = {en},
number = {10},
journal = {Geophysical Research Letters},
author = {Genereux, David P. and Nagy, Laura A. and Osburn, Christopher L. and Oberbauer, Steven F.},
month = may,
year = {2013},
keywords = {0428 Carbon cycling, 1804 Catchment, 1829 Groundwater hydrology, aquifer, carbon flux, groundwater, rainforest},
pages = {2066--2070}
}
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