The concentration of atmospheric CO2 has been increased due to the CO2 emission with mass fossil-fuel combustion since industrialization.Many studies indicate that the increasing concentration of atmospheric CO2 is significantly positive correlation with the photosynthesis and water use efficiency and production of vegetable is negative correlation with the connectivity of foliage stoma and rate of transpiration.In this study, the annual series of δ13C of three Cryptomeria fortunei Hooibrenk ex Otto et Dietr (CF) tree disks collected from west Tianmu Mountains, based on cross-dating tree ring ages, were determined.We probe into the physiological response for trees’ growth to the increasing concentration of atmospheric CO2 and moisture condition on the basis of the three δ13C series.The result illuminates that the water use efficiency are all increasing reflected by the three trees and the increasing trend is similar approximately.The result elucidates that the tree growth is significant positive with the increasing of atmospheric CO2 concentration before and after the Industrial Revolution.
ZHAO Xing-Yun, WANG Jian, SHANG Zhi-Yuan, WANG Zu-Liang, QIAN Jun-Long
. Foliage Physiological Response to Increase of Atmospheric CO2 Concentration Reflected by δ13C Series of Tree Ring in Tianmu Mountains[J]. SCIENTIA GEOGRAPHICA SINICA, 2008
, 28(5)
: 698
-702
.
DOI: 10.13249/j.cnki.sgs.2008.05.698
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