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7th science 12

ch. 12

Which method of deforestation involves removing all the trees from areas that are 100 acres or less block cutting
Who was the first head of the U.S. Forest Service Gifford Pinchot
A young tree is called a sapling
What is the most destructive type of forest fire crown fire
Which method of deforestation involves removing all but a few selected trees from a given area seed-tree method
A tree with ? branching has several main branches close to the ground spreading
Groups of tall plants or trees are called stands
The northern and southern limit at which trees grow is the tree line
An intensive forest management system that is intended to cause forests to grow more high quality trees that mature more quickly than they normally would is ? mannagement sustained yield
a forest's thick top layer of interlaced leaves is the canopy
Tree roots are either taproots or ? roots spreading
the tissue that wood is composed of xylem
the top leafy portion of a fully grown tree crown
the layer of cells that form at the base of a petiole to sever a leaf from a branch absission layer
the location from which a tree grows in length terminal bud
a waxy protective layer on a leaf cuticle
the rough outer covering of a tree bark
the central core of a young woody stem pith
a place on a stem that leaves grow out of node
the layer of growth cells just below the bark of a tree vascular cambium
a small pore that allows air to enter a stem lenticel
the main tissue of a trunk wood
the location of a tree's phloem bark
the type of forest that grows up after a virgin forest is cut secondary forest
the branch of forestry that deals with the care and culture of forest trees silvicutlure
an abnormal tree growth caused by insects gall
foresters deliberately setting fire to a forest under controlled conditions prescribed burning
a tree's living, functioning wood sapwood
all that remains on a branch after a leaf fall off leaf scar
what describes a tree that loses its leaves in the fall and stays bare all winter deciduous
which American forest region extends along the Mississippi River bottomland hardwood forest
the tallest tree species is the coast redwood
which leaf pigment gives leaves a yellow color xanthophyll
the oldest living organisms on earth are bristlecone pines
What is the technical term for a system or object that produces carbon dioxide carbon source
the hard, dead, clogged wood at the center of a tree is heartwood
Broadleaf trees are also called ? trees hardwood
one layer of springwood and one layer of summerwood form an ? annual growth ring
Thick small leaves at the top of trees are sun leaves
an ?? forest is one that has not been influenced by man or used for timber old-growth
a tree's increase in diameter is ??? growth secondary
Scientists crossbreed trees with desirable characteristics to develop ??? that are more insect resistant and produce better wood than normal trees supertrees
a tree that produces male and female reproductive parts on separate tress is dioecious
Created by: Harrison83