Abstract

Abstract Although elevated atmospheric CO2 has been shown to increase growth of tree seedlings and saplings, the response of intact forest ecosystems and established trees is unclear. We report results from the first large-scale experimental system designed to study the effects of elevated CO2 on an intact forest with the full complement of species interactions and environmental stresses. During the first year of exposure to 1.5 x ambient CO2, canopy loblolly pine (Pinus taeda, L.) trees increased basal area growth rate by 24% but understorey trees of loblolly pine, sweetgum (Liquidambar styraciflua L.), and red maple {Acer rubrutn L.) did not respond. Winged elm (Ulmus alata Michx.) had a marginally significant increase in growth rate (P = 0.069). These data suggest that this ecosystem has the capacity to respond immediately to a step increase in atmospheric CO2; however, as exposure time increases, nutrient limitations may reduce this initial growth stimulation.

Original languageEnglish (US)
Pages (from-to)609-613
Number of pages5
JournalGlobal change biology
Volume5
Issue number5
DOIs
StatePublished - Jan 1 1999

Fingerprint

growth response
Ecosystems
Nutrients
nutrient limitation
sapling
environmental stress
basal area
forest ecosystem
understory
canopy
seedling
ecosystem
exposure

Keywords

  • Climate change
  • Elevated-co
  • Growth
  • Pinus taeda
  • Understorey trees

ASJC Scopus subject areas

  • Global and Planetary Change
  • Environmental Chemistry
  • Ecology
  • Environmental Science(all)

Cite this

First-year growth response of trees in an intact froget exposed to elevated CO2 . / Naidu, Shawna L.; Delucia, Evan H.

In: Global change biology, Vol. 5, No. 5, 01.01.1999, p. 609-613.

Research output: Contribution to journalArticle

@article{d2102e11141d4b33b5ce2d33d373d0f8,
title = "First-year growth response of trees in an intact froget exposed to elevated CO2",
abstract = "Abstract Although elevated atmospheric CO2 has been shown to increase growth of tree seedlings and saplings, the response of intact forest ecosystems and established trees is unclear. We report results from the first large-scale experimental system designed to study the effects of elevated CO2 on an intact forest with the full complement of species interactions and environmental stresses. During the first year of exposure to 1.5 x ambient CO2, canopy loblolly pine (Pinus taeda, L.) trees increased basal area growth rate by 24{\%} but understorey trees of loblolly pine, sweetgum (Liquidambar styraciflua L.), and red maple {Acer rubrutn L.) did not respond. Winged elm (Ulmus alata Michx.) had a marginally significant increase in growth rate (P = 0.069). These data suggest that this ecosystem has the capacity to respond immediately to a step increase in atmospheric CO2; however, as exposure time increases, nutrient limitations may reduce this initial growth stimulation.",
keywords = "Climate change, Elevated-co, Growth, Pinus taeda, Understorey trees",
author = "Naidu, {Shawna L.} and Delucia, {Evan H}",
year = "1999",
month = "1",
day = "1",
doi = "10.1046/j.1365-2486.1999.00256.x",
language = "English (US)",
volume = "5",
pages = "609--613",
journal = "Global Change Biology",
issn = "1354-1013",
publisher = "Wiley-Blackwell",
number = "5",

}

TY - JOUR

T1 - First-year growth response of trees in an intact froget exposed to elevated CO2

AU - Naidu, Shawna L.

AU - Delucia, Evan H

PY - 1999/1/1

Y1 - 1999/1/1

N2 - Abstract Although elevated atmospheric CO2 has been shown to increase growth of tree seedlings and saplings, the response of intact forest ecosystems and established trees is unclear. We report results from the first large-scale experimental system designed to study the effects of elevated CO2 on an intact forest with the full complement of species interactions and environmental stresses. During the first year of exposure to 1.5 x ambient CO2, canopy loblolly pine (Pinus taeda, L.) trees increased basal area growth rate by 24% but understorey trees of loblolly pine, sweetgum (Liquidambar styraciflua L.), and red maple {Acer rubrutn L.) did not respond. Winged elm (Ulmus alata Michx.) had a marginally significant increase in growth rate (P = 0.069). These data suggest that this ecosystem has the capacity to respond immediately to a step increase in atmospheric CO2; however, as exposure time increases, nutrient limitations may reduce this initial growth stimulation.

AB - Abstract Although elevated atmospheric CO2 has been shown to increase growth of tree seedlings and saplings, the response of intact forest ecosystems and established trees is unclear. We report results from the first large-scale experimental system designed to study the effects of elevated CO2 on an intact forest with the full complement of species interactions and environmental stresses. During the first year of exposure to 1.5 x ambient CO2, canopy loblolly pine (Pinus taeda, L.) trees increased basal area growth rate by 24% but understorey trees of loblolly pine, sweetgum (Liquidambar styraciflua L.), and red maple {Acer rubrutn L.) did not respond. Winged elm (Ulmus alata Michx.) had a marginally significant increase in growth rate (P = 0.069). These data suggest that this ecosystem has the capacity to respond immediately to a step increase in atmospheric CO2; however, as exposure time increases, nutrient limitations may reduce this initial growth stimulation.

KW - Climate change

KW - Elevated-co

KW - Growth

KW - Pinus taeda

KW - Understorey trees

UR - http://www.scopus.com/inward/record.url?scp=0032878169&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032878169&partnerID=8YFLogxK

U2 - 10.1046/j.1365-2486.1999.00256.x

DO - 10.1046/j.1365-2486.1999.00256.x

M3 - Article

AN - SCOPUS:0032878169

VL - 5

SP - 609

EP - 613

JO - Global Change Biology

JF - Global Change Biology

SN - 1354-1013

IS - 5

ER -