Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
39 Cards in this Set
- Front
- Back
SOUTHERN DESERT Shrub Region
Occurs: |
25,000 square miles comprised of:
-Southeastern California & Portions of: -Nevada -Arizona -Utah |
|
DESERT Grassland Region
Occurs: |
Parts of 4 states:
1.California 2.Arizona 3.Texas 4.New Mexico & Northern Mexico |
|
Southern Pine Region
Occurs: |
Gulf Atlantic Coastal Plains, and the Piedmont of the Eastern & Southern Appalachians
|
|
Great Plains Grassland
Occurs: |
-spans parts of 13 states
-3 Canadian provinces -lands under jurisdiction of over 60 Native American tribes -NE Mexico |
|
Southern Pine Region
Species: 5 Trees: 3 Grasses: |
5 Trees:
1.loblolly pine 2.short-leaf pine 3.long-leaf pine 4.Virginia pine 5.slash pine 3 grasses 1.threeawn 2.wiregrass 3.creeping bluestem |
|
Great Plains Grassland
1. TALLGRASS PRAIRIE 4 Grasses: |
1.big bluestem
2.little bluestem 3.indiangrass 4.switchgrass |
|
Great Plains Grassland
2. MIXEDGRASS PRAIRIE 4 Grasses: |
1.curly mesquite
2.sideoats grama 3.Texas Wintergrass 4.Columbia needlegrass |
|
Great Plains Grassland
3. SHORTGRASS PRAIRIE 3 Grasses |
1.buffalograss
2.blue grama 3.wheat |
|
Southern Pine Region
Major impacts: |
Intensive use from farming, surface mining etc.. Most of these lands are highly eroded with minimal A1 horizon remaining
|
|
Great Plains Grassland
3 forbs or woodies |
????
|
|
Great Plains Grassland
Why does the vegetation composition change from North to South? |
1. Precipitation increase
from west to east. 2. Temperaturegradient; warmer temps in the southern region and cooler temps in the northern region. 3. Topographic variations and soil types 4. Fauna 5. grazing management 6. rangeland burning |
|
DESERT Grassland Region
2 Major Deserts: |
1. Chihuahuan Desert
2. Sonoran Desert |
|
DESERT Grassland Region
Major species: 6 shrubs or trees 2 grasses |
6 shrubs/trees:
1. creosotebush 2. tarbush 3. 4-winged saltbush 4. honey mesquite 5. white bursage 6. wolfberry 2 Grasses: 1. black grama 2. tobosa |
|
DESERT Grassland Region
Major impacts : |
-Profoundly modified by 150 years of extensive goat, sheep and cattle use.
-Deep soil sites throughout the natural area, whether derived of igneous rock or limestone, have lost much of their natural plant cover. -creosote and tarbush, mesquite, acacia and other thorny shrubs have replaced gasses. |
|
SOUTHERN DESERT Shub Region
Major Deserts: |
-Mojave Desert
-Sonoran Desert |
|
SOUTHERN DESERT Shrub Region
Major species: 4 Shrubs/trees 2 Grasses |
4 Shrubs/Trees
1. creosote bush 2. shadscale 3. big sagebrush 4. blackbush 2 Grasses: 1. alkali sacaton 2. alkali cordgrass |
|
SOUTHERN DESERT Shrub Region
Name of the tree-like yucca |
Joshua-tree
|
|
SOUTHERN DESERT Shrub Region
Major impacts: |
history of:
-livestock grazing -mining -military training *but vehicular routes, coupled with recurrent disturbance along routes that have high rates of vehicular travel and repeated disturbance from regular route maintenance, make vehicular routes the highest form of anthropogenic disturbances. |
|
NORTHERN DESERT Shrub Region
AKA: |
sagebrush desert
cold desert |
|
NORTHERN DESERT Shrub Region
Occurs: |
1.Nevada
2.California 3.Idaho 4.Wyoming 5.Utah 6.Oregon Big Horn Basin |
|
NORTHERN DESERT Shrub Region
Major Deserts: |
Red Desert
High Desert (lgst in N Am) |
|
NORTHERN DESERT Shrub Region
Major species: 5 Shrubs 5 Grasses |
7 Shrubs
1.greaswood 2.winterfat 3.salt desert shrub 4.big sagebrush 5.rabbitbush 5 Grasses 1.bluebunch wheatgrass 2.bottlebrush squirreltail 3.indian ricegrass 4.basin wildrye 5.bluegrasses |
|
NORTHERN DESERT Shrub Region
Characterized by: |
widely spaced shrubs that are deeper rooted than grasses of the Great Plains
|
|
NORTHERN DESERT Shrub Region
Major Impacts: |
Mining activities
overgrazing in the late 1800's and early 1900's overgrazing by wild horses urban expansion and highways |
|
NORTHERN DESERT Shrub Region
Vegetation controlled by: |
topography
precipitation soil differences |
|
Southern Pine Region:
Typical successional sequence: |
1. annual and perennial weedy forbs and grasses.
2. broomsedge 3. woody invaders 4. southern pines 5. oaks and hickories |
|
Southern Pine Region
Production of: |
1. Pine pulp
2. poles 3. sawtimber |
|
Southern Pine Region
Subregions: |
1. Virginia pine subregion
2. shortleaf-loblolly pine subregion 3. longleaf-slash pine subregion 4. scrubland subregion |
|
Great Plains Grassland
Why does vegetation composition change from North to South? |
-Precipitation increase from
W->E -Temperature gradient S->warmer N->cooler -Topographic variations and different soil types -Fauna -grazing practices -rangeland burning |
|
Great Plains Grassland
Major impacts: |
-diminished water quality
induced by toxins from industrial & Agricultural sources & sediments from poor land management practices. -Loss of productivity from *topsoil erosion *changes in pH from irrigation practices *overgrazing -Loss of biodiversity -loss of contiguous landscape -decliing groundwater resources from irrigation -loss of natural areas, wildlife, & other aesthetic values. |
|
|
Southern Pine Region:
Gulf and Atlantic Coastal Plains and the Piedmont of the Eastern and Southern Appalachians |
|
|
Great Plains Grassland:
Parts of 14 states, 3 Canadian provinces, and lands under jurisdiction of over 60 Native American tribes |
|
|
Great Plains Grassland:
3 Major Sections 1.Tallgrass Prairie 2.Shortgrass Prairie 3.Mixedgrass Prairie |
|
|
Great Plains Grassland
|
|
|
Desert Grassland:
1.California 2.Arizona 3.Texas 4.New Mexico Northern Mexico |
|
|
Desert Grassland
1.Chihuahuan Desert 2.Sonoran Desert |
|
|
Southern Desert Shrub:
Arid region of Southeastern California, and portions of Nevada, Arizona, and Utah. occupies more than 25000 sq mi |
|
|
Northern Desert Shrub:
1.Nevada 2.California 3.Idaho 4.Wyoming 5.Oregon |
|
|
Northern Desert shrub vegetation differences
|