Silviculture #1

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An age class created from natural seeding, sprouting, suckering, or layering

Trees with crowns completley above the general level of the main canopy recieving full light from above and from all sides.

The planned interval between partial harvests in an uneven aged stand

The cutting of trees comprising an upper canopy layer in order to release trees or other vegetation in an understory

The area of the cross section of a tree stem, including the bark, generallyat breast height (4.5 feet above the ground)

Trees with crowns extending into the lower portion of the main canopy of even aged stands or, in uneven aged stands, into the lower portion of the canopy formed by the tree's immediate neighbors, but shorter in hieght than the codominates.

The observed expression of a trait in an indivisual resulting from developmental interaction of the indivisuals genotype and its operational environment

The genetic constitution of an organism in terms of it's hereditary characteristics as distinguished from it's physical appearance or phenotype.