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Responses to Elevated Carbon Dioxide in Artificial Tropical Ecosystems
Abstract
Carbon, nutrient, and water balance as well as key plant and soil processes were simultaneously monitored for humid tropical plant communities treated with CO 2 -enriched atmospheres. Despite vigorous growth, no significant differences in stand biomass (of both the understory and overstory), leaf area index, nitrogen or water consumption, or leaf stomatal behavior were detected between ambient and elevated CO 2 treatments. Major responses under elevated CO 2 included massive starch accumulation in the tops of canopies, increased fine-root production, and a doubling of CO 2 evolution from the soil. Stimulated rhizosphere activity was accompanied by increased loss of soil carbon and increased mineral nutrient leaching. This study points at the inadequacy of scaling-up from physiological baselines to ecosystems without accounting for interactions among components, and it emphasizes the urgent need for whole-system experimental approaches in global-change research.
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Cited by
Carbon pools and flux of global forest ecosystems
Dixon, R. K., Solomon, A. M., Brown, S., Houghton, R. A., Trexier, M. C., & Wisniewski, J. (1994) · Science · doi:10.1126/science.263.5144.185 · Cited by 3,403
Declining biodiversity can alter the performance of ecosystems
Naeem, S., Thompson, L. J., Lawler, S. P., Lawton, J. H., & Woodfin, R. M. (1994) · Nature · doi:10.1038/368734a0 · Cited by 1,786
Carbon input to soil may decrease soil carbon content.
Fontaine, S., Bardoux, G., Abbadie, L., & Mariotti, A. (2004) · Ecology Letters · doi:10.1111/j.1461-0248.2004.00579.x · Cited by 814
Stomatal responses to increased CO2: implications from the plant to the global scale
FIELD, C. B., JACKSON, R. B., & MOONEY, H. A. (1995) · Plant, Cell & Environment · doi:10.1111/j.1365-3040.1995.tb00630.x · Cited by 774
Drigo, B., Pijl, A. S., Duyts, H., Kielak, A. M., Gamper, H. A., Houtekamer, M. J., Boschker, H. T. S., Bodelier, P. L. E., Whiteley, A. S., Veen, J. A. V., et al. (2010) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0912421107 · Cited by 470
Metadata
- Authors
- Körner, C., & Arnone, J. A.
- Venue
- Science
- Published
- 1992-09-18
- Volume
- 257
- Issue
- 5077
- Pages
- 1672-1675
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1976292067
- Cited by
- 491
- References
- 0
- FWCI
- 43.20
- Type
- journal article
- Language
- en
- Open access
- closed
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- Körner, C., & Arnone, J. A. (1992). Responses to Elevated Carbon Dioxide in Artificial Tropical Ecosystems. Science. https://doi.org/10.1126/science.257.5077.1672
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
