[Effects of elevated ozone on Pinus armandii growth: a simulation study with open-top chamber]

Ying Yong Sheng Tai Xue Bao. 2013 Oct;24(10):2731-6.
[Article in Chinese]

Abstract

By using open-top chamber (OTC) and the techniques of dendrochronology, this paper studied the growth of Pinus armandii under elevated ozone, and explored the evolution dynamics and adaptation mechanisms of typical forest ecosystems to ozone enrichment. Elevated ozone inhibited the stem growth of P. armandii significantly, with the annual growth of the stem length and diameter reduced by 35.0% and 12.9%, respectively. The annual growth of tree-ring width and the annual ring cells number decreased by 11.5% and 54.1%, respectively, but no significant change was observed in the diameter of tracheid. At regional scale, the fluctuation of ozone concentration showed significant correlation with the variation of local vegetation growth (NDVI).

Publication types

  • English Abstract
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Air Pollutants / pharmacology*
  • Atmosphere / analysis*
  • Computer Simulation
  • Ozone / analysis*
  • Ozone / pharmacology
  • Pinus / growth & development*
  • Pinus / metabolism

Substances

  • Air Pollutants
  • Ozone