1. copy ecoregions of texas vocabulary into journal 2. create a foldable
TRANSCRIPT
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1.Copy Ecoregions of Texas vocabulary into journal
2.Create a foldable
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Texas Ecoregions Powerpoint
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What is an ecoregion?An ecoregion is a large area of land that has a distinct group of plants and animals. Each of these plants and animals in the region have adapted to live in the conditions of that region.
Organisms adapt to the weather, elevation, soil, and amount of water available.
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Factors Affecting Our Ecoregions
Weathering – chemical and physical break down of rocks into sediment
Erosion – the movement of sediment from one place to another
Deposition – the placement of sediment after being carried from place of origin
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Directions for foldable:There are 11 different eco-regions of Texas. You
are going to create a foldable that will help you remember at least five of the regions.
STEP ONE: Label foldable with each regionSTEP TWO: under the flap for each region list
information. (Precipitation, topography, elevation, dangers in the region, and any additional facts that you want to include)
STEP THREE: Draw a quick symbol on the front flap of each eco-region that will remind you about that regions characteristics.
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•Piney Woods•Gulf Coastal Plains•Edwards Plateau/ Llano Basin•High Plains•Mountains and Basins
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Location
Conroe Huntsville Jefferson Longview Nacogdoches Texarkana Tyler
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Plants, animals
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Weathering, erosion, deposition
It is the wettest region of the state. This allows for a high rate of plant decay to occur resulting in healthy, nutrient-rich soils.
The topography is gently rolling to near flat throughout the region. Soils are somewhat poorly drained and streams are slow-moving.
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The majority of economic activities involve the lumber industry and unless an area has been clear-cut of vegetation, the amount of trees and plants can prevent erosion.
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Location
Aransas PassBeaumontCorpus ChristiGalvestonHoustonRefugioRockportSouth Padre IslandVictoria
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Plants, animals
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Weathering, erosion, deposition
Soil in the region is primarily sand-based. If there isn’t enough vegetation to keep
the soil in place, rainfall received can cause severe erosion.
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Small wave deltas form between the barrier islands
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Sand dunes are a result of wind deposition
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Catastrophic events such as tropical storms can increase wave erosion and deposition.
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Location
AustinSan Antonio
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Plants, animals
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The shape of the hills in this region is rounded due to increased precipitation
and chemical weathering.
Weathering, erosion, deposition
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•Erosion by streams and rivers above ground has left most of the region with very shallow soils (less than 10 inches).
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Central Texas' Flash Flood Alley is one of the most flood-prone areas nationwide. When rocks and soil can absorb no more rainfall, it gets carried off into a stream or at the bottom of a lake
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Erosion below ground caused by water seeping through the porous limestone. It contribute to the recharge of the Edwards Aquifer
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The Llano Basin gets its name from the granitic rock that is uncovered at the surface. There are several large thin sheets of rock that slough off. This is a form of mass movement (erosion)called exfoliation.
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Extention/ TAGBatholith is a large layering of magma that
cools slowly deep below the surface of the Earth’s crust.
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Location
AmarilloLubbock
Palo Duro Canyon
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Plants, animals
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Weathering, erosion, depositionLargest and most completely
flat areas of it size in the world. It is subjected to high wind speeds.
Higher elevation because the rocks don’t wear down easily.
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Weathering, erosion, deposition
Catastrophic events such as tornados can increase wind erosion
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Extention/ TAG Weather Fronts
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Poor land management, drought, and high wind speeds contributed to the Dust Bowl in the 1930’s
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Palo Duro Canyon was formed by water erosion
The water widens and deepens the canyon by moving sediment downstream
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The canyon can have land slides
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Location
El PasoPresidio
Big Bend National Park
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Plants, animals
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Weathering, erosion, deposition
The weathered bedrock in this area has high amounts of calcium
As a result of erosion and deposition in the area, the soil has high amounts of calcium called caliche.
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Weathering, erosion, deposition
It is the hottest and most arid (driest) region of the state.
Hot days, cool nights contribute to physical weathering of rock.
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Alluvial fans of rubble, sand, and gravel build at the base of the mountains
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Weathering, Erosion, Deposition
This region also has salt flats, dunes and windblown sand.
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MapColor Ecoregions of TexasLocate Rivers of TexasLocate Big Bend National Park
Locate Cities of TexasUse Textbook page 680