[MIS08-P29] Uncertainty of tree-ring based temperature reconstruction: Effects of soil moisture environment and air pollution on reconstruction records
Keywords:Temperature reconstruction, Tree ring, Air pollution
The purpose of our study is to identify the environmental factors responsible for the influencing the relationship between tree-ring parameters and temperature in the northern high latitudes by using available datasets for tree ring parameters and environmental variables. We focus on two environmental factors: 1) soil moisture environment; 2) air pollution, both of which might affect plant carbon uptake processes through adjustment of stomatal openness. We clarify the effects of these environmental factors on tree ring parameters. In this presentation, we intend to show the preliminary results on this, especially for the possible impact of the air pollution on the tree ring parameters.