What is dendrochronolgy?
The branch of botany under which annul a rings of the plant are studied is called dendrochronolgy. By the elevation of number of annual rings in the plants or trees, the ages of the plants or trees are estimated exactly. Please note that dendrochronolgy is applicable only to a period of a few thousand years and only in the few areas where old wood samples have been preserved, radiocarbon dating can date events up to sixty thousand years old.
How does it work?
Due to the chronological, climatic changes the core activities of the cambium of any plant that of any place is regularly changed. In spring season this activity is increased, while in the winter season it is decreased, consequently distinct annual rings form which is the indicative parameter of the year growth.