This standard specifies the tree ring sampling environment, selection of tree species and sample trees, sample collection methods, sample size, sample records, sampling operations and precautions, sample transportation and storage, and other relevant details. This standard applies to the collection of tree ring samples in the field of climate research.
QX/T 90-2008 history
2008QX/T 90-2008 Standards of tree-ring sampling for dendroclimatological research