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Exam 3 Trees
exam 3 trees
52
Agriculture
Undergraduate 3
11/09/2014

Additional Agriculture Flashcards

 


 

Cards

Term
Coastal Plain Southern Pine Region
Definition
  • Some of the most intensively managed forests in the world
  • 100 million acres of pines
  • Most productive land in the country
  • 2/3's of the nations pulping capacity
  • Humid, subtropical, frequent droughts
Term
Black Hills Region
Definition
  • "East meets West"
  • Characteristics of eastern and western forests
  • Paper birch, quaking aspen and white spruce trees are remnants of forests left from 8000 years ago.
Term

Middle and Southern Rocky Mountain Region

 

Definition
  • Most land is range and pasture
  • 75% of commercial forest land is public
  • Multiple use -timber, water mgmt, grazing, rec.
  • 6000' is average lower limit for trees
  • area below is too dry
  • Semi-arid
Term

California Region

 

Definition
  • Broken topography
  • 2 major mountain ranges-Coastal Rand and Sierra Nevada Mts
  • Variety of climates:subtropical, arid, humid, maritime
  • Fogbelt is moist year round
Term
Northern Rocky Mountain Region
Definition
  • Largest unbroken areas of forest in the lower 48
  • Rough terrain, poor in soils, high elevations
  • Western slopes in the north have coastal climate
  • Lightening is the biggest cause of forest fires
Term
Lakes States Region
Definition
Around the Great Lakes
Large variety of forest industries
Many Lakes and lowlands
Lakes influence temperature and rainfall
Drought Stops the westward limit of trees
Term
Coastal Plain Bottomland Hardwood Region
Definition
Associated with Miss. River and major river drainage
Typically flat with slight variations in elevations
High rainfall
Term
Redwood Forest Type
Definition
Important component of the "Fog Belt"
Extends inland only a limited distance
Term
Douglas-fir Forest Type
Definition
Occurs in Coastal Range and Sierras
Term
Ponderosa pine Forest Type
Definition
Bark is characteristic-if wet appears orange
2000' with Gray pine
7000' with Douglus fir
Mid ranges-Jeffrey Pine
Thick bark make the type less susceptible to fire
Term
White fir Forest Type
Definition
Dwarf Mistletoe is a major problem
Very tolerant
Term
Incense-cedar Forest Type
Definition
Not widespread
Often found on river flats but usually above redwood coastal sites.
Term
sugar pine-Pinus lambertiana
Definition
Sweet resin exudes from heartwood
Largest of the American pines
"King of Pines" for its beauty
Cones 10-21" long
White pine blister rust
Term
Jeffrey pine-Pinus jeffreyi
Definition
Was considered variety of ponderosa pine
Bark smells of pineapple or vanilla
Grows on poor sites
Chipmunks cache nearly all fallen seeds within a day.
Term
Coulter pine-Pinus coulteri
Definition
shiny blue-green needles 8-12"
Largest cones of any American pine 4-5lbs
Term
Coastal Plain Bottomland Hardwood Region
Definition
Associated with Miss. River and major river drainage
Typically flat with slight variations in elevations
High rainfall
Term
gray pine-Pinus sabiniana
Definition
Large cones, strong points
Sparse foliage helps it on dry sites
Can survive on as little as 10" precipitation
Term
Torrey pine-Pinus torreyana
Definition
Smallest range of American Pine
One of the rarest native conifer
Only hard pine with 5 needles
Cones can remain on tree for 15 years
Term
radiata pine-Pinus radiata
Definition
Limited commercial value in US
Most widely planted tree in the world
Widely planted in NZ, Australia, S. Africa, Chile
Term
Intermountain bristlecone pine-Pinus longaeva
Definition
Oldest known living thing-4800+ years old
Used for tree ring research
Short needles in groups of 5 held up to 40 years
Term
California red fir-Abies magnifica
Definition
Shasta red fir is a variety in N. California
Valuable Christmas tree
Term
Redwood-Sequoia sempervirens
Definition
Tallest tree in the world
Can regenerate clonally as well by seed
Restricted by California fogbelt
Heart wood is mostly decay resistant
Term
giant sequoia
Definition
Largest tree in the worlds
3200-3300 years old
Only in Sierra-Nevada Mts.
Term
Incense-cedar
Definition
aromatic
used for pencils
Term
Pacific madrone
Definition
Small but dense wood like cherry
Ornamental
Widely distributed
Term
California-laurel
Definition
most valued hardwood species in the western US
One of the most expensive woods in the Us
Term
Tanoak
Definition
Considered a link between the chestnut and acorns like the oak
Indians obtained one of their principal foods from this tree.
Term
Ponderosa Pine Forest Type
Definition
Native to every state in region
Lowest elevational distribution
Ponderosa pine and spruce-fir types make up 57% of the forested land
Term
Fir Spruce Forest Type
Definition
Ponderosa pine and spruce-fir types make up 57% of the forested land
Term
Lodgepole Pine Forest Type
Definition
Overstocked pure stands "dog hair stands" not commercial
Term
Aspen Forest Type
Definition
Cool, moist sites
Vegetative propagation is common
Term
Pinyon-Juniper Forest Type
Definition
Large area but not usually commercial
Lowest elevations
Term
limber pine
Definition
Long-lived, slow grower
1650 year old tree
Clark's nutcracker and limber pine depend on each other
Term
Pinyon pine
Definition
Grows at low elevations mixed with junipers
Nuts are edible - most valuable
Term
Englemann spruce
Definition
Blue green needle colour
light wood with resonant qualities
major element of high evolution
Term
Colorado spruce
Definition
One of the most symmetrical tree in NA
Highly prized ornamental
Not abundant, used for xmas tree
Term
Douglas-fir
Definition
False hemlock (also not a fir)
Valuable commercial species
greatest latitude range of any conifers
Distinctive cones-look like rat tails
Term
white fir
Definition
2 varieties:California & Rocky Mnt White fir
High Mountain tree
attacked by mistletoe or rot
Term
Rocky Mountain Juniper
Definition
Subalpine to semiarid
Round bluish berry-like cones
Aromatic woods used for cedar chests
Term
gambel oak
Definition
Spreads rapidly from root sprouts that grow from vast underground structures called lignotubes
Can Result in groves that can cover entire mountainsides.
Term
Western white pine
Definition
large to very large tree
Attains best growth "Inland Empire"
white pine blister rust
Term
lodgepole pine
Definition
3 races of varieties:
-Coastal Race or Shore pine
-Sierra-Cascade Race
-Rocky Mountain-Intermountain Race
Term
Western Larch
Definition
Largest of the NA larches and one of the most important species of the inland empire
Source of arabinogalactan
Term
Western hemlock
Definition
Largest hemlock
One of the most common trees in the PNW
Drooping branches
Source of alpha cellulose (cellophane and plastics)
Term
grand fir
Definition
One of the tallest true firs
Term
subalpine fir
Definition
High altitude species
Valuable for water shed protection
smallest of the western firs
Term
Western redcedar
Definition
large to very large
largest at 21' in diameter, 2nd only to Giant Sequoia
used for totem poles
Term
Jack pine
Definition
Most widely distributed pine in Canada - Also in Lake States and Maine
Grows farther north than any other American pine.
Poor self pruning - scraggly appearance
Breeding area for Kirtland’s warbler, a rare and endangered species.
Term
Family Ulmaceae
Definition
Includes elms (Ulmus) and
hackberries (Celtis)
Tend to have asymmetrical leaves.
So Many Ulmus susceptible to Dutch Elm Disease me of the most useful and well-known forest and ornamental trees of the northern hemisphere
Twigs are slightly zigzag
Leaves are alternate and have unequal bases
Term
American Elm
Definition
Large tree with spreading habit
interlocked grain difficult to split
Once planted widely along streets (#1 street tree)
- fast growing, hardy, tolerant to stress
Dutch elm disease (Ceratocystis ulmi) introduced in 1930s on logs from Europe.
Spread by native elm bark beetles
Term
Red Elm
Definition
Inner bark has a slime once used as a medicine
More resistant to Dutch Elm Disease- but still killed
Same uses as American elm but wood is inferior
Term
American basswood or linden
Definition
Large tree with a long trunk
Prolific sprouter - often results in clumps of trees
Soft light wood – used for boxes, furniture, pulpwood
Wood used for musical instruments
Good honey – also called bee tree
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