The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.
Fine-root production dominates response of a deciduous forest to atmospheric CO 2 enrichment
Open accessAbstract
Fine-root production and turnover are important regulators of the biogeochemical cycles of ecosystems and key components of their response to global change. We present a nearly continuous 6-year record of fine-root production and mortality from minirhizotron analysis of a closed-canopy, deciduous sweetgum forest in a free-air CO 2 enrichment experiment. Annual production of fine roots was more than doubled in plots with 550 ppm CO 2 compared with plots in ambient air. This response was the primary component of the sustained 22% increase in net primary productivity. Annual fine-root mortality matched annual production, and the mean residence time of roots was not altered by elevated CO 2 , but peak fine-root standing crop in midsummer was significantly higher in CO 2 -enriched plots, especially deeper in the soil profile. The preferential allocation of additional carbon to fine roots, which have a fast turnover rate in this species, rather than to stemwood reduces the possibility of long-term enhancement by elevated CO 2 of carbon sequestration in biomass. However, sequestration of some of the fine-root carbon in soil pools is not precluded, and there may be other benefits to the tree from a seasonally larger and deeper fine-root system. Root-system dynamics can explain differences among ecosystems in their response to elevated atmospheric CO 2 ; hence, accurate assessments of carbon flux and storage in forests in a globally changing atmosphere must account for this unseen and difficult-to-measure component.
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Cites
The plastic plant: root responses to heterogeneous supplies of nutrients
Hodge, A. (2004) · New Phytologist · doi:10.1111/j.1469-8137.2004.01015.x · Cited by 1,686
A global budget for fine root biomass, surface area, and nutrient contents
Jackson, R. B., Mooney, H. A., & Schulze, E.-D. (1997) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.94.14.7362 · Cited by 1,480
Soil fertility limits carbon sequestration by forest ecosystems in a CO2-enriched atmosphere
Oren, R., Ellsworth, D. S., Johnsen, K. H., Phillips, N., Ewers, B. E., Maier, C., Schäfer, K. V. R., McCarthy, H., Hendrey, G., McNulty, S. G., et al. (2001) · Nature · doi:10.1038/35078064 · Cited by 1,084
FINE ROOT ARCHITECTURE OF NINE NORTH AMERICAN TREES
Pregitzer, K. S., DeForest, J. L., Burton, A. J., Allen, M. F., Ruess, R. W., & Hendrick, R. L. (2002) · Ecological Monographs · doi:10.1890/0012-9615(2002)072[0293:fraonn]2.0.co;2 · Cited by 1,065
Water deficits and hydraulic limits to leaf water supply
Sperry, J. S., Hacke, U. G., Oren, R., & Comstock, J. P. (2002) · Plant, Cell & Environment · doi:10.1046/j.0016-8025.2001.00799.x · Cited by 919
Measuring carbon in forests: current status and future challenges
Brown, S. (2002) · Environmental Pollution · doi:10.1016/s0269-7491(01)00212-3 · Cited by 881
Hungate, B. A., Dukes, J. S., Shaw, M. R., Luo, Y., & Field, C. B. (2003) · Science · doi:10.1126/science.1091390 · Cited by 868
Tree responses to rising CO 2 in field experiments: implications for the future forest
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Self-citationPlant responses to atmospheric CO2 enrichment with emphasis on roots and the rhizosphere
Rogers, H. H., Runion, G. B., & Krupa, S. V. (1994) · Environmental Pollution · doi:10.1016/0269-7491(94)90034-5 · Cited by 731
Schlesinger, W. H., & Lichter, J. (2001) · Nature · doi:10.1038/35078060 · Cited by 523
Cited by
Forest response to elevated CO2is conserved across a broad range of productivity
Norby, R. J., DeLucia, E. H., Gielen, B., Calfapietra, C., Giardina, C. P., King, J. S., Ledford, J., McCarthy, H. R., Moore, D. J. P., Ceulemans, R., et al. (2005) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0509478102 · Cited by 987
Self-citationPhillips, R. P., Finzi, A. C., & Bernhardt, E. S. (2011) · Ecology Letters · doi:10.1111/j.1461-0248.2010.01570.x · Cited by 788
Hyvönen, R., Ågren, G. I., Linder, S., Persson, T., Cotrufo, M. F., Ekblad, A., Freeman, M., Grelle, A., Janssens, I. A., Jarvis, P. G., et al. (2007) · New Phytologist · doi:10.1111/j.1469-8137.2007.01967.x · Cited by 688
Self-citationEcological Lessons from Free-Air CO 2 Enrichment (FACE) Experiments
Norby, R. J., & Zak, D. R. (2011) · Annual Review of Ecology, Evolution, and Systematics · doi:10.1146/annurev-ecolsys-102209-144647 · Cited by 681
Self-citationPlant CO2 responses: an issue of definition, time and resource supply
Körner, C. (2006) · New Phytologist · doi:10.1111/j.1469-8137.2006.01886.x · Cited by 608
Metadata
- Authors
- Norby, R. J., Ledford, J., Reilly, C. D., Miller, N. E., & O'Neill, E. G.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2004-06-21
- Volume
- 101
- Issue
- 26
- Pages
- 9689-9693
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2079257330
- Cited by
- 377
- References
- 34
- FWCI
- 25.87
- Type
- journal article
- Language
- en
- Open access
- green
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