Service Description: 2016 average tree carbon (standing live and dead trees) and downed woody material >3” in diameter in tons per acre summarized by western NFS firesheds, shown as quartiles.
We are drawing from data published in TreeMap 2016: A tree-level model of the forests of the conterminous United States circa 2016 (Riley et al., 2021; Riley et al., 2022). This data was chosen since total carbon was able to be aggregated at a fireshed scale. Data provided is a 30X30 m spatial resolution tree-level model of forests shown as a raster map for the conterminous U.S. circa 2016. A random forests machine-learning algorithm was used to impute forest plot data from Forest Inventory and Analysis (FIA) to a set of target rasters that were provided by Landscape Fire and Resource Management Planning Tools (LANDFIRE: https://landfire.gov).
Total tree carbon (CARBON_Total field) in tons per acre was calculated by adding attribute fields CARBON_L (Carbon, live above ground), CARBON_D (Carbon, standing dead), and CARBON_DWN (Carbon, dead down >3” diameter and stumps and roots >3” diameter). These were all provided as tons per acre. CARBON_D contained values of -99 for some plots which indicates null values equivalent to no standing dead trees; these were converted to zero values. A Lookup geoprocessing tool was run to isolate the Carbon_Total field from the rest of the attributes for further processing. Zonal Statistics by Table were run to gather basic statistics on Carbon_Total using FireshedNFSWest layer as the feature zone and FIRESHED_ID field as the Zone Field. Ignore No Data in calculations was selected for this process. This allowed for the statistics to be calculated for the Total_Carbon pixel values that fall within each NFS west fireshed. The resulting table was then joined to the original FireshedsNFSWest layer and displayed as an average of CARBON_Total (tons per acre) symbolized in 4 categories with an emphasis on those firesheds that have average tree carbon in tons per acre in the upper quartile.
Service ItemId: b5b90bf4f96346c4b5ecf1eff6dee353
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: False
Supports Shared Templates: True
All Layers and Tables
Layers:
Description:
Copyright Text:
Spatial Reference: PROJCS["NAD_1983_Albers",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["central_meridian",-96.0],PARAMETER["Standard_Parallel_1",29.5],PARAMETER["Standard_Parallel_2",45.5],PARAMETER["latitude_of_origin",23.0],UNIT["Meter",1.0]]
Initial Extent:
XMin: -4623513.39039991
YMin: 259995.887700622
XMax: 4372922.94829664
YMax: 3289052.0327699
Spatial Reference: PROJCS["NAD_1983_Albers",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["central_meridian",-96.0],PARAMETER["Standard_Parallel_1",29.5],PARAMETER["Standard_Parallel_2",45.5],PARAMETER["latitude_of_origin",23.0],UNIT["Meter",1.0]]
Full Extent:
XMin: -2684191.73789474
YMin: 921462.705020355
XMax: -249325.865773574
YMax: 3208017.26406394
Spatial Reference: PROJCS["NAD_1983_Albers",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["central_meridian",-96.0],PARAMETER["Standard_Parallel_1",29.5],PARAMETER["Standard_Parallel_2",45.5],PARAMETER["latitude_of_origin",23.0],UNIT["Meter",1.0]]
Units: esriMeters
Child Resources:
Info
SharedTemplates
Supported Operations:
Query
ConvertFormat
Get Estimates