Nys Envirothon Forestry

Front 1

Cambium

Back 1

The section of the inside of a tree trunk just inside the bark.

Front 2

Sapwood

Back 2

The section of the inside of a tree trunk that is next after the Cambium.

Front 3

Heartwood

Back 3

The section of the inside of a tree trunk that is in the center of the trunk and is the oldest wood in the tree.

Front 4

Pith

Back 4

The very center of a tree trunk and the pith contains the first rings of the tree’s growth.

Front 5

Xylem

Back 5

The tissue responsible for transporting water from the roots to the leaves.

Front 6

Phloem

Back 6

The tissue responsible for transporting food from the leaves to growing or storage systems in the tree.

Front 7

Dominant Tree

Back 7

The tallest trees in an ecosystem that control the light.

Front 8

Co-Dominant Tree

Back 8

The trees just below the canopy that receive most of their light from above, but not the sides.

Front 9

Intermediate

Back 9

Shorter trees that receive very little sunlight.

Front 10

Overtopped (Suppressed) Trees

Back 10

The smallest trees in a forest that usually receive no direct sunlight.

Front 11

Primary Succesion

Back 11

The process of bare land turning into a climax community.

Front 12

Secondary Succesion

Back 12

The process of damaged land (fire, natural disaster, etc.) returning to a climax community.

Front 13

4 Stages of Forest Succession

Back 13

Stand initiation, Stem exclusion, Understory reinitiation, multi-aged stand.

Front 14

Back 14

Clear cut

Front 15

Back 15

Seed Tree

Front 16

Back 16

Shelterwood

Front 17

Back 17

Single Tree

Front 18

Back 18

Group Tree

Front 19

What are 4 reasons we might thin a forest?

Back 19

Promote growth of other trees, reduce fire risk, increase forest health, improve wildlife habitat

Front 20

Basal Area

Back 20

The summed breast height (4.5 ft from the stump) of a certain area of trees.

Front 21

Merchantable Height

Back 21

The height to the first fork in a tree measured in 16 ft. logs.

Front 22

Afforestation

Back 22

The planting and establishment of a forest on land that was not previously forested.

Front 23

Board Foot

Back 23

A forestry unit referring to 144 square inches of wood.

Front 24

Canopy

Back 24

The upper level of a forest that completely shades the forest floor.

Front 25

Bole

Back 25

The main trunk of a tree.