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Ecoregions of Texas
Transcript of Ecoregions of Texas
Farmers reduce soil loss by planting cover crops between harvests. Cross Timbers Long, linear strips of forest that crosscut grasslands The Brazos River has created many of the tall, steep cliffs along the river's banks in this region. FUN FACT Edwards Plateau Exposed to EXFOLIATION
mechanical weathering that causes the rock to "peel" in sheets due to contraction and expansion Gulf Prairies Wave action is constant along the Texas coastline Sediments are eroded and weathered along beaches and carried out into the ocean to form sand bars and islands High Plains Windiest region in the US Low vegetation, high wind erosion Palo Duro Canyon
Formed by water
erosion Piney Woods Highest precipitation
Little erosion Post Oak Savannah Converted to pastureland
Rivers dominate landscape
Periodic flooding adds sediment to floodplains Rolling Plains Crop and cattle land area Overgrazing
lowered water tables
declining native grasslands
altered river ecosystems History of Human Interaction South Texas Plains Very dry climate
Low growing vegetation
Trees are more abundant along the southern border in the Rio Grande Valley Rio Grande River Trans-Pecos Big Bend Texas is divided into 10 smaller areas, or ecoregions, based on common landforms and climate. Ecoregions are characterized by:
Presence or absence of erosional factors