AI Article Synopsis
- The study focused on analyzing tree-ring density in windfall woods of the Ili Prefecture, developing chronologies for maximum, minimum, mean earlywood, and latewood densities from different heights on tree stems.
- The findings indicated that tree-ring density chronologies showed strong coherence at heights of 10, 15, and 20 meters, with latewood density (LWD) displaying consistent responses across varying heights.
- It was revealed that maximum density (MXD) and LWD at 15 meters were particularly sensitive to temperature changes, suggesting that sampling at a lower height (1.3 m) might underestimate temperature responses.
Article Abstract
Taking windfall woods of in the southern mountainous area of the Ili Prefecture as the research object, tree-ring density chronologies were developed from the discs for maximum density (MXD), minimum density (MID), mean earlywood density (EWD), and mean latewood density (LWD) at five different stem heights (1.3, 5, 10, 15 and 20 m) to examine the climatic responses of tree-ring density by correlation analysis with local meteorological data. The results showed that there was a good coherence among the four types of tree-ring density chronologies for the same stem height, which was relatively significant for the data from 10, 15 and 20 m. The LWD had good coherence among different stem heights, while the climatic responses of tree-ring density at different stem heights varied. The MXD and LWD at 15 m were sensitive to mean tempera-ture from July to September in the previous year and from May to September in the current year. It might underestimate the response of to temperature if we sample tree-ring at 1.3 m.
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| http://dx.doi.org/10.13287/j.1001-9332.202102.027 | DOI Listing |
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