OverviewLocated in the Hill Country of Texas, both districts of the Lyndon B. Johnson National Historical Park are located in the Pedenales River Valley that meanders through the geologic region of Texas known as the Llano Uplift. The vegetation contains a mix of common Texas Hill Country native plants and agriculture-influenced non-native species. The native elements mainly include trees and shrubs, whereas the grasslands for this site have been altered through seeding and irrigation. Riparian corridors are usually lush with multi-strata of deciduous vines, shrubs, and trees. Common species include pecan, hackberry, sugar hackberry, and cedar elm trees. Shrubs include dense thickets of buckthorn, and black willow.
The Lyndon B. Johnson National Historical Park Vegetation Inventory Project delivers many geospatial and vegetation data products, including an in-depth project report discussing methods and results, which include descriptions to vegetation associations, field keys to vegetation associations, map classification, and map-class descriptions. The suite of products also includes a database of vegetation plots, and accuracy assessment (AA) sites; digital images of field sites; digital aerial imagery; digital maps; a contingency table listing AA results; and a geodatabase of vegetation, field sites (vegetation plots, and AA sites), aerial imagery, project boundary, and metadata.
The products of vegetation mapping projects are stored and managed in the National Park Service's Data Store, a repository for documents and publications relating to park resources. From the highlighted items below, click on the type of information you are looking for.
Last updated: October 18, 2018