Terrestrial Condition Assessment (TCA) Grassland Encroachment (Map Service)

The indicator uses areas identified as grasslands using LANDFIRE�s Biophysical Settings (BpS) raster dataset (US_140BPS_20180618) along with a cross-walk based on Reeves MC, Mitchell JE (2011) Extent of coterminous US rangelands: quantifying implications of differing agency perspectives. Rangel Ecol Manage 64:1�12 to identify BpS units that are likely to be grasslands during pre-European times. Presence of conifer tree species was developed using USGS National Landcover Database 2011 (NLCD) legend class �42 � Evergreen Forest�. The Evergreen forest class represents �areas dominated by trees generally greater than 5 meters tall, and greater than 20% of total vegetation cover. More than 75% of the tree species maintain their leaves all year. Canopy is never without green foliage.��<div><br></div><div>�Grassland conifer encroachment is identified where raster pixels are identified as both �grasslands� and NLCD �Evergreen Forest�</div><div><br>This record was taken from the USDA Enterprise Data Inventory that feeds into the <a href="https://data.gov">https://data.gov</a> catalog. Data for this record includes the following resources:</div><ul><li> <a href="https://www.arcgis.com/sharing/rest/content/items/ce757f1224c04dbe8d96f309430098b7/info/metadata/metadata.xml?format=iso19139 "> ISO-19139 metadata</a></li><li> <a href="https://data-usfs.hub.arcgis.com/documents/usfs::terrestrial-condition-assessment-tca-grassland-encroachment-map-service "> ArcGIS Hub Dataset</a></li><li> <a href="https://usfs.maps.arcgis.com/home/item.html?id=fdd79a1ec3f841188ade4094c5fd9e19 "> ArcGIS GeoService</a></li></ul><div> For complete information, please visit <a href="https://data.gov">https://data.gov</a>.</div>