OBJECTIVE FORESTRY

Detailed explanation-1: -Imagine if a tree was growing next to a boulder, and it had to grow around the obstacle: the resulting rings would be a little lopsided. Also, if a tree is damaged on the outside, as it grows that damage will become a scar on the inside. Damage could come from being cut, or fire, or disease.

Detailed explanation-2: -False rings represent renewed growth after a cold or dry weather causes the formation of late wood mid way through a growing season. That is, two poorly defined rings correspond to one calendar year and thus one is considered false.

Detailed explanation-3: -For example, tree rings usually grow wider in warm, wet years and they are thinner in years when it is cold and dry. If the tree has experienced stressful conditions, such as a drought, the tree might hardly grow at all in those years.

Detailed explanation-4: -C: The cambium cell layer is the growing part of the trunk. It annually produces new bark and new wood in response to hormones that pass down through the phloem with food from the leaves. These hormones, called “auxins”, stimulate growth in cells.