Texas, Our Texas: Engage & Explore Engage: Students recall prior knowledge of Texas and Texas environments. Explore: Students use maps and photographs to identify characteristics of the ecoregions of Texas.

Engage: Which of these types of places can be found in Texas? a. Deserts b. Canyons c. Mountains d. Beaches e. Meadows of wildflowers f. Swamps g. Pine forests

All of them! a. Deserts —Chihuahuan Desert b. Canyons—Palo Duro Canyon c. Mountains—Guadalupe Mountains d. Beaches—Galveston Beach e. Meadows of wildflowers—Hill Country/Central Texas f. Swamps—Daisetta Swamp, Liberty County g. Pine forests—Big Thicket National Preserve

Chihuahua Desert of Texas

Palo Duro Canyon

Galveston Beach

Hill Country

Daisetta Swamp

Pine Forest

Explore: Students use maps and photographs to identify characteristics of the ecoregions of Texas.

You will focus on 6 different eco-regions 4= Gulf Coast 7= Edwards Plateau 10= High Plains 11= Trans Pecos 3= Blackland Prairie 1= Piney Woods

Draw this table in your notebook Skip 4 lines

Turn page over and draw the table again Total You will need 6 columns and 5 rows

Name of Eco-region Location Precipitation Temperature Soil Characteristics 4 Gulf Coast 7 Edwards Plateau

After looking at the different ecoregions of Texas, what is an ecoregion? What are the characteristics that define the different ecoregions?

Eco-regions of Texas What is the title of this map? Ecoregions of Texas What two words are joined together to create the word eco- region? ecological + region = eco-region What is the root word for ecological? (ecology) What does ecology mean? Ecology is the study of the environment. This includes the study of the interactions of living organisms with their natural environment. What does region mean? A region is an area of land. What do you think eco-region means? the study of the environment of a particular area of land How many eco-regions are shown on this map? 12

Western Gulf Coastal Plain 1.Soil in the region is primarily sand-based. 2.If there isn’t enough vegetation to keep the soil in place, rainfall received can cause severe erosion. 3.Catastrophic events such as hurricanes can increase wave erosion and deposition.

Edwards Plateau 1.This region is located between dry western plains and moist prairies and woods. 2.Unfortunately, erosion has left most of the region with very shallow soils (less than 10 inches) lined with limestone rock layers. 3.High amounts of rain in a short amount of time can cause flash flooding.

High Plains 1.“Texas Panhandle” 2.Largest and most completely flat areas of it size in the world! 3.The region extends to the Palo Duro Canyon-the nations 2 nd largest canyon. 4.Palo Duro Canyon was formed by water erosion from the Prairie Dog Town Fork of the Red River. 5.The water deepens the canyon by moving sediment downstream. 6.Wind and water erosion gradually widen the canyon.

Trans-Pecos Rain does not fall evenly over the area. “Desert portion” of Texas. 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.

Grand Prairie and Plains, Blackland Plains and Post Oak Savannah 1.These areas have nutrient- rich soils and receive good amounts of rainfall through the year. 2.If the land is clear-cut of natural vegetation for construction nutrients can easily be eroded. 3.If the land is used for farming and it is not managed well, nutrients will be quickly used up.

Piney Woods 1.This ecoregion is found in Southeast Texas. 2.It is the wettest region of the state. This allows for a high rate of decomposition to occur resulting in healthy, nutrient-rich soils. 3.The topography is gently rolling to near flat through out the region. 4.Pine trees, woody vines, and hardwood trees dominate the vegetation. 5.It is a fire climax system. Fire is necessary in order for pines to maintain dominance in the area. 6.Unless an area has been clear-cut of vegetation for construction, the amount of trees and plants can prevent erosion.

Rolling Plains 1.This region is part of the Great Plains of the central United States. 2.Soils in this area are most fertile and sought after for crop production. 3.Periods of drought and then sudden increase in rainfall causes large amounts of erosion and deplete the soil of nutrients.

Western and Eastern Cross Timbers 1.This is a small, thin region running North to South on either side of the prairies and plains 2.The soil are not as prone to flooding because they allow water to infiltrate the soil very easily. 3.The region is described as rough, hilly terrain.

South Texas Plains 1.The area is known as “Brush Country” due to the shorter trees and many shrubs. 2.Overgrazing of the land has allowed nutrient- rich topsoil to erode way. 3.Rocky, dry soil cannot support grasses, trees can thrive because of their deeper root system.

Mountain Forest 1.Home of the tallest mountain in Texas, Guadalupe Peak at 8,749 feet. 2.Pines and Oaks dominate the tree species. 3.Soils are shallow and rocky. Weathering continues to play a role in developing soil and will for thousands of years to come. 4.Soils in the canyon bottoms and valleys are deeper as a result of deposition.