树木的年轮学不仅是重要的历史，而且天气人类历史的。
Studying tree rings is important not only for the history of weather, but also of the history of man.
在典型的取样环境中，树木生长多遵循缓慢递减的规律，作生长量订正时，可采用传统的树木年轮学订正方法。
At the typical environment, the tree growth may basically follow the regulation of progressive decrease with the increased age .
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