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Title: Growth enhancement of Quercus alba saplings by CO[sub 2] enrichment under field conditions

Abstract

White oak (Quercus alba L.) trees were grown in soil under field conditions for four growing seasons in open-top chambers containing ambient air continuously enriched with 0, 150, or 300 [mu]mol/mol CO[sub 2]. The trees were significantly larger in elevated CO[sub 2]: whole-tree mass (including woody roots) was 36% greater in +150 and 140% greater in +300 compared to ambient-grown trees. There were no significant effects of CO[sub 2] concentration on root-to-shoot or leaf area ratios. The stimulatory effect of CO[sub 2] occurred during seedling establishment, and there was no effect of CO[sub 2] on relative growth rate after the first field season. However, photosynthesis remained consistently higher in elevated CO[sub 2], foliar respiration was reduced, and fine root density and CO[sub 2] efflux from the soil were higher, as previously reported with yellow- poplar trees.

Authors:
; ; ; ;  [1]
  1. Oak Ridge National Lab., TN (United States)
Publication Date:
OSTI Identifier:
6143514
Report Number(s):
CONF-930798-
Journal ID: ISSN 0012-9623; CODEN: BECLAG
Resource Type:
Conference
Journal Name:
Bulletin of the Ecological Society of America; (United States)
Additional Journal Information:
Journal Volume: 74:2; Conference: 78. annual Ecological Society of America (ESA) meeting, Madison, WI (United States), 31 Jul - 4 Aug 1993; Journal ID: ISSN 0012-9623
Country of Publication:
United States
Language:
English
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; CARBON DIOXIDE; BIOLOGICAL EFFECTS; OAKS; PLANT GROWTH; ANNUAL VARIATIONS; LEAVES; PHOTOSYNTHESIS; RESPIRATION; ROOTS; SEEDLINGS; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CHEMICAL REACTIONS; GROWTH; MAGNOLIOPHYTA; MAGNOLIOPSIDA; OXIDES; OXYGEN COMPOUNDS; PHOTOCHEMICAL REACTIONS; PLANTS; SYNTHESIS; TREES; VARIATIONS; 560300* - Chemicals Metabolism & Toxicology

Citation Formats

Norby, R J, O'Neill, E G, Wullschleger, S D, Gunderson, C A, and Nietch, C T. Growth enhancement of Quercus alba saplings by CO[sub 2] enrichment under field conditions. United States: N. p., 1993. Web.
Norby, R J, O'Neill, E G, Wullschleger, S D, Gunderson, C A, & Nietch, C T. Growth enhancement of Quercus alba saplings by CO[sub 2] enrichment under field conditions. United States.
Norby, R J, O'Neill, E G, Wullschleger, S D, Gunderson, C A, and Nietch, C T. 1993. "Growth enhancement of Quercus alba saplings by CO[sub 2] enrichment under field conditions". United States.
@article{osti_6143514,
title = {Growth enhancement of Quercus alba saplings by CO[sub 2] enrichment under field conditions},
author = {Norby, R J and O'Neill, E G and Wullschleger, S D and Gunderson, C A and Nietch, C T},
abstractNote = {White oak (Quercus alba L.) trees were grown in soil under field conditions for four growing seasons in open-top chambers containing ambient air continuously enriched with 0, 150, or 300 [mu]mol/mol CO[sub 2]. The trees were significantly larger in elevated CO[sub 2]: whole-tree mass (including woody roots) was 36% greater in +150 and 140% greater in +300 compared to ambient-grown trees. There were no significant effects of CO[sub 2] concentration on root-to-shoot or leaf area ratios. The stimulatory effect of CO[sub 2] occurred during seedling establishment, and there was no effect of CO[sub 2] on relative growth rate after the first field season. However, photosynthesis remained consistently higher in elevated CO[sub 2], foliar respiration was reduced, and fine root density and CO[sub 2] efflux from the soil were higher, as previously reported with yellow- poplar trees.},
doi = {},
url = {https://www.osti.gov/biblio/6143514}, journal = {Bulletin of the Ecological Society of America; (United States)},
issn = {0012-9623},
number = ,
volume = 74:2,
place = {United States},
year = {Tue Jun 01 00:00:00 EDT 1993},
month = {Tue Jun 01 00:00:00 EDT 1993}
}

Conference:
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