Blog - cork cambium

Bark : damage

Bark : damage

by Chris, 20 November, 2020, 0 comments

Wind, fire and frost can seriously damage or kill trees. Animals also wound them when they feed on bark tissues, and when they rub their bodies or antlers against tree trunks. Insects, like bark beetles can cause significant damage damage to woodlands and forests. The extent of damage to trunks and the bark of trees varies considerably in relation to the nature of the ‘attack’. If the damage to the bark is severe and the vascular cambium is exposed then neither new water nor sugar conducting tissue can be formed. Damage to the (outer) cork cambium (phellogen) will limit the trees ability to form the outer tissues of the bark - which protect the tree. If the damage is restricted to the outermost bark layer then this will render the tree more susceptible to further damage (be it from herbivores or temperature extremes). Read more...

bark of redwood

Bark, its nature and uses.

by Chris, 6 November, 2020, 0 comments

Bark is the term that is often applied to the outer covering of tree stems and other woody plants. It serves to protect a tree from Water loss Insect attack Infection by bacteria and fungi Physical damage (by fire, animals, rock fall) The nature of bark is immensely variable. In some trees, the bark is extremely rough, corrugated and thick. In others it is is thinner and appears to peel off in strips. Redwoods are noted for having an extremely thick bark (see featured image above). Their bark is very fibrous and can be up to three feet thick. Read more...

Why trees don't grow tall in the same way as people ....

Why trees don’t grow tall in the same way as people ….

by Angus, 1 May, 2017, 1 comments

When you look at a small person (also known as a baby) you know that they will grow bigger in every dimension. Trees don't grow like that. A tree's branch will stay at the same height however tall the tree grows: by contrast a child's arm rises to a higher level as he or she grows taller. The reason for this is that trees only grow in areas called meristems where they form new cells. Cells are created by cell division (mitosis) within the meristems, and these cells then expand and specialise. These growth areas are found at the tops of the trees, and the tips of branches; these are "apical meristems". Growth also happens in the apical meristems at the ends / tips of the tree's roots. Read more...

Wild Flower Guide

Badger

Read our guide to wild flowers of woodland and hedgerow

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