Playa Lakes Play a Vital Role in the High Plains Ecosystem
Disciplines
Geographic Information Sciences | Spatial Science
Abstract (300 words maximum)
The High Plains Region of the United States, extending from Southern South Dakota to West Texas, is home to vast grasslands and playa lakes—shallow depressions that form temporary wetlands. These playa lakes are vital for recharging the High Plains Aquifer, also known as the Ogallala Aquifer, one of the largest sources of freshwater in the country. Despite limited rainfall, this region has historically supported rich grassland ecosystems and remains crucial for both global agricultural production and migratory bird populations traveling the Central Flyway.
My poster explores the ongoing depletion of the playa lakes and grasslands due to over-irrigation and land conversion, an often-overlooked issue with wide-reaching environmental consequences. These changes threaten biodiversity, disrupt the water cycle and pose a threat to long term agricultural production. The aim of my project is to raise awareness among the general public, who are often unaware of the critical ecological role of the High Plains Region.
One of the biggest challenges I faced during this project was locating usable shapefiles to visually represent grassland to cropland conversion. My initial attempts to show grassland conversion were complicated by overly detailed cropland data. Eventually, I shifted focus after finding an irrigation shapefile which showed a much clearer visual of the use of water in the area. The other part of the story is told by the Greater Prairie Chicken, the Lark Bunting and the Cassin’s Sparrow. The three species of birds rely greatly on the playa lakes as a means for survival throughout breeding and migratory journeys.
With personal ties to the southern High Plains, I hope this poster brings attention to the ecological importance of this region and inspires more informed land-use decisions.
Use of AI Disclaimer
no
Academic department under which the project should be listed
RCHSS – Geography & Anthropology
Primary Investigator (PI) Name
Nancy Pullen
Playa Lakes Play a Vital Role in the High Plains Ecosystem
The High Plains Region of the United States, extending from Southern South Dakota to West Texas, is home to vast grasslands and playa lakes—shallow depressions that form temporary wetlands. These playa lakes are vital for recharging the High Plains Aquifer, also known as the Ogallala Aquifer, one of the largest sources of freshwater in the country. Despite limited rainfall, this region has historically supported rich grassland ecosystems and remains crucial for both global agricultural production and migratory bird populations traveling the Central Flyway.
My poster explores the ongoing depletion of the playa lakes and grasslands due to over-irrigation and land conversion, an often-overlooked issue with wide-reaching environmental consequences. These changes threaten biodiversity, disrupt the water cycle and pose a threat to long term agricultural production. The aim of my project is to raise awareness among the general public, who are often unaware of the critical ecological role of the High Plains Region.
One of the biggest challenges I faced during this project was locating usable shapefiles to visually represent grassland to cropland conversion. My initial attempts to show grassland conversion were complicated by overly detailed cropland data. Eventually, I shifted focus after finding an irrigation shapefile which showed a much clearer visual of the use of water in the area. The other part of the story is told by the Greater Prairie Chicken, the Lark Bunting and the Cassin’s Sparrow. The three species of birds rely greatly on the playa lakes as a means for survival throughout breeding and migratory journeys.
With personal ties to the southern High Plains, I hope this poster brings attention to the ecological importance of this region and inspires more informed land-use decisions.