Tree-ring width and δ13C records of industrial stress and recovery in Pennsylvania and New Jersey forests: Implications for CO2 uptake by temperate forests

Long Li, Zicheng Yu, Gray Edward Bebout, Tom Stretton, Andrew Allen, Peter Passaris

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We present dendrochronological records of tree-ring width and δ13C values for representative living trees (ages of 70 to 230years) in Pennsylvania and New Jersey to investigate the ecological responses to industrial pollution and recent management and their effects on carbon storage in the temperate forests. Chestnut oak, red oak and cedar trees consistently show elevated δ13C levels (1.3 to 4.1‰ higher than unpolluted normal values) during the period of intense pollution from ~1900 to ~1970, indicating significant industrially induced physiological stress on the trees. Since ~1970, oak and cedar trees have shown remarkable increase in growth rates and rapid decrease of 0.6 to 2.5‰ in δ13C values, indicating the recovery of trees corresponding to the implementation of the Clean Air Act in the early 1970s. The growth enhancement since 1970 has resulted in an increase in biomass of ~26% in cedar trees and ~66% in oak trees, suggesting that air-cleaning efforts have made a significant contribution to CO2 uptake by the temperate forests, at least in the northeastern USA.

Original languageEnglish
Pages (from-to)250-257
Number of pages8
JournalChemical Geology
Volume273
Issue number3-4
DOIs
Publication statusPublished - May 2010
Externally publishedYes

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temperate forest
tree ring
Pollution
Recovery
Air
Cleaning
Biomass
Carbon
air
carbon sequestration
pollution
oak
biomass

Keywords

  • δC
  • CO storage
  • Pollution
  • Recovery
  • Temperate forest
  • Tree-ring
  • Width

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geology

Cite this

Tree-ring width and δ13C records of industrial stress and recovery in Pennsylvania and New Jersey forests : Implications for CO2 uptake by temperate forests. / Li, Long; Yu, Zicheng; Edward Bebout, Gray; Stretton, Tom; Allen, Andrew; Passaris, Peter.

In: Chemical Geology, Vol. 273, No. 3-4, 05.2010, p. 250-257.

Research output: Contribution to journalArticle

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