Stimulation of grassland nitrogen cycling under carbon dioxide enrichment

Bruce A Hungate, F. S. Chapin, H. Zhong, E. A. Holland, C. B. Field, B. A. Hungate, F. S. Chapin, H. Zhong

Research output: Contribution to journalArticle

136 Citations (Scopus)

Abstract

Nitrogen (N) limits plant growth in many terrestrial ecosystems, potentially constraining terrestrial ecosystem response to elevated CO2. In this study, elevated CO2 stimulated gross N mineralization and plant N uptake in two annual grasslands. In contrast to other studies that have invoked increased C input to soil as the mechanism altering soil N cycling in response to elevated CO2, increased soil moisture, due to decreased plant transpiration in elevated CO2, best explains the changes we observed. This study suggests that atmospheric CO2 concentration may influence ecosystem biogeochemistry through plant control of soil moisture.

Original languageEnglish (US)
Pages (from-to)149-153
Number of pages5
JournalOecologia
Volume109
Issue number1
DOIs
StatePublished - Jan 1 1997
Externally publishedYes

Fingerprint

carbon dioxide enrichment
grasslands
grassland
carbon dioxide
nitrogen
terrestrial ecosystem
soil moisture
ecosystem response
annual grasslands
soil water
biogeochemistry
transpiration
soil
mineralization
plant growth
ecosystem
uptake mechanisms
ecosystems

Keywords

  • Annual grasslands
  • Elevated CO
  • N mineralization
  • Soil moisture

ASJC Scopus subject areas

  • Ecology

Cite this

Hungate, B. A., Chapin, F. S., Zhong, H., Holland, E. A., Field, C. B., Hungate, B. A., ... Zhong, H. (1997). Stimulation of grassland nitrogen cycling under carbon dioxide enrichment. Oecologia, 109(1), 149-153. https://doi.org/10.1007/s004420050069

Stimulation of grassland nitrogen cycling under carbon dioxide enrichment. / Hungate, Bruce A; Chapin, F. S.; Zhong, H.; Holland, E. A.; Field, C. B.; Hungate, B. A.; Chapin, F. S.; Zhong, H.

In: Oecologia, Vol. 109, No. 1, 01.01.1997, p. 149-153.

Research output: Contribution to journalArticle

Hungate, BA, Chapin, FS, Zhong, H, Holland, EA, Field, CB, Hungate, BA, Chapin, FS & Zhong, H 1997, 'Stimulation of grassland nitrogen cycling under carbon dioxide enrichment', Oecologia, vol. 109, no. 1, pp. 149-153. https://doi.org/10.1007/s004420050069
Hungate BA, Chapin FS, Zhong H, Holland EA, Field CB, Hungate BA et al. Stimulation of grassland nitrogen cycling under carbon dioxide enrichment. Oecologia. 1997 Jan 1;109(1):149-153. https://doi.org/10.1007/s004420050069
Hungate, Bruce A ; Chapin, F. S. ; Zhong, H. ; Holland, E. A. ; Field, C. B. ; Hungate, B. A. ; Chapin, F. S. ; Zhong, H. / Stimulation of grassland nitrogen cycling under carbon dioxide enrichment. In: Oecologia. 1997 ; Vol. 109, No. 1. pp. 149-153.
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