Terrestrial Condition Assessment (TCA) Grassland Encroachment (Map Service)
Description
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.��
�Grassland conifer encroachment is identified where raster pixels are identified as both �grasslands� and NLCD �Evergreen Forest�
Resources
| Name |
Format |
Description |
Link |
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55 |
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https://www.arcgis.com/sharing/rest/content/items/ce757f1224c04dbe8d96f309430098b7/info/metadata/metadata.xml?format=iso19139 |
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3 |
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https://usfs.maps.arcgis.com/home/item.html?id=fdd79a1ec3f841188ade4094c5fd9e19 |
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21 |
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https://data-usfs.hub.arcgis.com/documents/usfs::terrestrial-condition-assessment-tca-grassland-encroachment-map-service |
Tags
- open-data
- usfs
- grasslands
- conifer
- gtac
- grassland
- tca