Name: LEMMA Biomass Density (Native Forest Only)

Display Field: OID_COPY

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: <div style="text-align:Left;"><p style="margin:0 0 11 0;"><span><font size="3">This dataset represents a vegetation map stand’s aboveground live biomass in tons/hectare sequestered in forest vegetation. </font></span></p><p style="margin:0 0 11 0;"><font size="3"><span> The data are derived from the work of the </span>Landscape Ecology Modeling, Mapping &amp; Analysis (LEMMA) group, a research team led by US Forest Service (USFS) Pacific Northwest Research Station and Oregon State University and supported by collaboration with USFS Rocky Mountain Research Station, USFS Pacific Northwest Region, and the USFS Forest Inventory and Analysis Program (FIA).<span style="background-color:rgb(255, 255, 255);"> </span></font></p><p style="margin:0 0 11 0;"><font size="3">To map the biomass of aboveground live trees, the LEMMA group utilized gradient nearest neighbor (GNN) analysis based on 30-meter Landsat imagery supplemented by training data for GNN derived from FIA data (LEMMA, n.d.a., n.d.b.). Mean value aboveground live biomass was then integrated into native forest stands in the 2018 Fine Scale Vegetation Map using the zonal statistics (mean) function in ArcGIS. Each native forest polygon in the 2018 Fine Scale Vegetation Map was assigned an aboveground live biomass tons/hectare attribution. Note that aboveground forest carbon is calculated from the biomass value by using the biomass to carbon conversion factor of 0.47.</font></p><p style="margin:0 0 11 0;"><span><font size="3">LEMMA biomass is mapped at the regional scale and is derived from moderate resolution satellite imagery. As such, it provides an approximation of biomass density that is not field checked or refined at the local scale. High resolution datasets such as lidar or high-resolution imagery are not used to create LEMMA data products. Training data is limited to FIA plot data.</font></span></p><p style="margin:0 0 11 0;"><span style="font-size:medium; font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif;">See Chapter 6 of the </span><a href="https://www.onetam.org/sites/default/files/pdfs/marin_regional_forest_health_strategy_2023.pdf" style="font-size:medium; color:rgb(0, 97, 155); text-decoration-line:none; font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif;">Marin Regional Forest Health Strategy</a><span style="font-size:medium; font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif;"> (Page 279 - Aboveground Live Biomass and Carbon) for more information.</span></p><p style="margin:0 0 11 0;"><font size="3"><span><span>For more information on the LEMMA biomass data, go to: </span></span><a href="https://lemma.forestry.oregonstate.edu/projects/ca-biomass">https://lemma.forestry.oregonstate.edu/projects/ca-biomass</a></font></p><div><div style="font-size:12pt;"><p><span></span></p></div></div></div>

Copyright Text: Golden Gate National Parks Conservancy, OneTam, Tukman Geospatial

Min. Scale: 1155582

Max. Scale: 1128

Default Visibility: false

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: -13696654.4828138
YMin: 4551691.23159563
XMax: -13627113.3231958
YMax: 4626442.27470701
Spatial Reference: 102100 (3857)

Drawing Info:

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Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True

Global ID Field: GlobalID

Type ID Field:

Fields:

• Value (type: esriFieldTypeInteger, alias: Value, SQL Type: sqlTypeOther, nullable: true, editable: true)
• DENDIFF_10_19 (type: esriFieldTypeDouble, alias: 2010-2019 Density Difference (for veg > 10 feet), SQL Type: sqlTypeOther, nullable: true, editable: true)
• DENDIFF_10_19_MANUAL (type: esriFieldTypeString, alias: 2010-2019 Density Difference (for veg > 10 feet) Classified, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• OID_COPY (type: esriFieldTypeInteger, alias: OID_COPY, SQL Type: sqlTypeOther, nullable: true, editable: true)
• MAP_CLASS_18 (type: esriFieldTypeString, alias: Fine Scale Map Class in ‘18, SQL Type: sqlTypeOther, length: 8000, nullable: true, editable: true, Coded Values: [Acacia spp. – Grevillea spp. – Leptospermum laevigatum Semi-Natural Alliance: Acacia spp. – Grevillea spp. – Leptospermum laevigatum Semi-Natural Alliance], [Acer macrophyllum – Alnus rubra Alliance: Acer macrophyllum – Alnus rubra Alliance], [Acer macrophyllum Association: Acer macrophyllum Association], ... 103 more ...)
• ABBRV (type: esriFieldTypeString, alias: Fine Scale Map Class Abbreviation, SQL Type: sqlTypeOther, length: 8000, nullable: true, editable: true)
• LIFEFORM_18 (type: esriFieldTypeString, alias: Lifeform in ‘18, SQL Type: sqlTypeOther, length: 8000, nullable: true, editable: true)
• FOREST_LIFEFORM_18 (type: esriFieldTypeString, alias: Forest Lifeform in ‘18, SQL Type: sqlTypeOther, length: 8000, nullable: true, editable: true)
• ABS_COVER_19 (type: esriFieldTypeDouble, alias: % Veg Returns Over 15 ft., SQL Type: sqlTypeOther, nullable: true, editable: true)
• REL_CON_COV_18 (type: esriFieldTypeInteger, alias: Relative % Conifer Cover in '18, SQL Type: sqlTypeOther, nullable: true, editable: true)
• REL_HDW_COV_18 (type: esriFieldTypeDouble, alias: Relative % Hardwood Cover in '18, SQL Type: sqlTypeOther, nullable: true, editable: true)
• HDW_COVER_18 (type: esriFieldTypeDouble, alias: Absolute % Hardwood Cover in ‘18, SQL Type: sqlTypeOther, nullable: true, editable: true)
• CON_COVER_18 (type: esriFieldTypeDouble, alias: Absolute % Conifer Cover in ‘18, SQL Type: sqlTypeOther, nullable: true, editable: true)
• SHB_COVER_18 (type: esriFieldTypeDouble, alias: Absolute % Shrub Cover in ‘18, SQL Type: sqlTypeOther, nullable: true, editable: true)
• STAND_HT_MN_19 (type: esriFieldTypeDouble, alias: Mean LiDAR Stand Height in ‘19 (ft.), SQL Type: sqlTypeOther, nullable: true, editable: true)
• STAND_HT_MX_19 (type: esriFieldTypeDouble, alias: Maximum LiDAR Stand Height in ‘19 (ft.), SQL Type: sqlTypeOther, nullable: true, editable: true)
• STAND_HT_SD_19 (type: esriFieldTypeDouble, alias: Standard Deviation LiDAR Stand Height in ‘19 (ft.), SQL Type: sqlTypeOther, nullable: true, editable: true)
• STANDING_DEAD_19 (type: esriFieldTypeInteger, alias: % Standing Dead '19 Classified, SQL Type: sqlTypeOther, nullable: true, editable: true)
• FRACAL_MORTALITY_18 (type: esriFieldTypeInteger, alias: % Standing Dead Frangula Californica ‘18, SQL Type: sqlTypeOther, nullable: true, editable: true)
• CANOPY_GAP_10_19 (type: esriFieldTypeDouble, alias: % Canopy Gap formed '10-'19 Classified, SQL Type: sqlTypeOther, nullable: true, editable: true)
• LARGEST_GAP_10_19 (type: esriFieldTypeDouble, alias: Sq. Feet of Largest ’10-’19 Gap, SQL Type: sqlTypeOther, nullable: true, editable: true)
• CON_CHANGE_14_18 (type: esriFieldTypeDouble, alias: % Conifer Change ’14-‘18, SQL Type: sqlTypeOther, nullable: true, editable: true)
• HDW_CHANGE_14_18 (type: esriFieldTypeDouble, alias: % Hardwood Change ’14-‘18, SQL Type: sqlTypeOther, nullable: true, editable: true)
• AGL_BIOM_2017_RATE (type: esriFieldTypeDouble, alias: Mean Aboveground Live Biomass Tons per Hectare 2017 (LEMMA), SQL Type: sqlTypeOther, nullable: true, editable: true)
• AGL_BIOM_2017_TOT (type: esriFieldTypeDouble, alias: Total Aboveground Live Biomass Tons 2017 (LEMMA), SQL Type: sqlTypeOther, nullable: true, editable: true)
• MEAN_LADDER_FUELS (type: esriFieldTypeDouble, alias: Mean Ladder Fuels 1-4 Meters (0-1), SQL Type: sqlTypeOther, nullable: true, editable: true)
• SLOPE_MEAN (type: esriFieldTypeDouble, alias: Mean Slope Degrees, SQL Type: sqlTypeOther, nullable: true, editable: true)
• SLOPE_STD (type: esriFieldTypeDouble, alias: Standard Deviation Slope Degrees, SQL Type: sqlTypeOther, nullable: true, editable: true)
• SLOPE_MAX (type: esriFieldTypeDouble, alias: Maximum Slope Degrees, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Orig_Map_Class (type: esriFieldTypeString, alias: Original Map Class, SQL Type: sqlTypeOther, length: 8000, nullable: true, editable: true)
• WOODWARD_FIRE_SEVERITY (type: esriFieldTypeString, alias: Burn Severity for Woodward Fire, SQL Type: sqlTypeOther, length: 8000, nullable: true, editable: true)
• ACRES (type: esriFieldTypeDouble, alias: Acres, SQL Type: sqlTypeOther, nullable: true, editable: true)
• CHART_CHMDIFF (type: esriFieldTypeString, alias: Canopy Height Change '10-'19, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• CHART_PHS (type: esriFieldTypeString, alias: 95th Percentile Heights '10-'19, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• CHART_CVPS (type: esriFieldTypeString, alias: Canopy Volume Profiles '10-'19, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• CHART_DENSITY (type: esriFieldTypeString, alias: Density gt 15 Feet '10-'19, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• DIRT_RD_18 (type: esriFieldTypeInteger, alias: % Dirt and Gravel Road in ‘18, SQL Type: sqlTypeOther, nullable: true, editable: true)
• OTHER_PAVED_18 (type: esriFieldTypeInteger, alias: % Other Paved in ‘18, SQL Type: sqlTypeOther, nullable: true, editable: true)
• BUILDING_18 (type: esriFieldTypeInteger, alias: % Buildings in ‘18, SQL Type: sqlTypeOther, nullable: true, editable: true)
• OTHER_DIRT_18 (type: esriFieldTypeInteger, alias: % Other Dirt and Gravel in ‘18, SQL Type: sqlTypeOther, nullable: true, editable: true)
• PAVED_RD_18 (type: esriFieldTypeInteger, alias: % Paved Road in ‘18, SQL Type: sqlTypeOther, nullable: true, editable: true)
• IMPERVIOUS_18 (type: esriFieldTypeInteger, alias: % Impervious in '18 Classsified, SQL Type: sqlTypeOther, nullable: true, editable: true)
• PERVIOUS_18 (type: esriFieldTypeInteger, alias: % Pervious in ‘18, SQL Type: sqlTypeOther, nullable: true, editable: true)
• DENS_RETURNS_GT_10 (type: esriFieldTypeInteger, alias: % lidar Returns Above 10 ft., SQL Type: sqlTypeOther, nullable: true, editable: true)
• RW_DF_CONDITION_CV (type: esriFieldTypeString, alias: Redwood - Douglas fir Condition Class (CV), SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
• RW_DF_CONDITION_CV_SIMPLE (type: esriFieldTypeString, alias: Redwood - Douglas fir Condition Class Simplified, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
• ABS_COVER_19_MANUAL (type: esriFieldTypeString, alias: % Veg Returns Over 15 ft. Classified, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• CANOPY_GAP_10_19_MANUAL (type: esriFieldTypeString, alias: % Canopy Gap formed '10-'19 Classified, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• STANDING_DEAD_19_MANUAL (type: esriFieldTypeString, alias: % Standing Dead '19 Classified, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• IMPERVIOUS_18_MANUAL (type: esriFieldTypeString, alias: % Impervious in '18 Classsified, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• OAK_FLAGS (type: esriFieldTypeString, alias: Threatened and Converting Oak Stands, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• REL_HDW_COV_18_MANUAL (type: esriFieldTypeString, alias: Relative % Hardwood Cover in '18 Classified, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• REL_CON_COV_18_MANUAL (type: esriFieldTypeString, alias: Relative % Conifer Cover in '18 Classified, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• YEAR_LAST_BURNED (type: esriFieldTypeInteger, alias: Year Last Burned (1859-2021), SQL Type: sqlTypeOther, nullable: true, editable: true)
• YEARS_SINCE_LAST_BURNED (type: esriFieldTypeInteger, alias: Years Since Last Burned (1859-2021), SQL Type: sqlTypeOther, nullable: true, editable: true)
• FRI_1859_1940 (type: esriFieldTypeDouble, alias: Fire Return Interval (1859-1940), SQL Type: sqlTypeOther, nullable: true, editable: true)
• FRI_1859_1940_MANUAL (type: esriFieldTypeString, alias: Fire Return Interval (1859-1940) Classified, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• YEARS_SINCE_LAST_BURNED_MANUAL (type: esriFieldTypeString, alias: Years Since Last Burned (1859-2021) Classified, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• RARITY (type: esriFieldTypeString, alias: State of CA Rarity, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• BISHOP_STRUCT_CLASSIFICATION (type: esriFieldTypeString, alias: Bishop Pine Structural Classification, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• SARG_STRUCT_CLASSIFICATION (type: esriFieldTypeString, alias: Sargent Cypress Structural Classification, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• LADDER_RANK (type: esriFieldTypeString, alias: Ladder Fuel Class by Forest Lifeform, SQL Type: sqlTypeOther, length: 8000, nullable: true, editable: true)
• Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)
• GlobalID (type: esriFieldTypeGlobalID, alias: GlobalID, SQL Type: sqlTypeOther, length: 38, nullable: false, editable: false)

Templates:

Name: ≤100 Tons/Hectare AGL Biomass
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• AGL_BIOM_2017_RATE: -4949.5
Name: 101 - 200 Tons/ha
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• AGL_BIOM_2017_RATE: 150
Name: 201 - 300 Tons/ha
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• AGL_BIOM_2017_RATE: 250
Name: 301 - 400 Tons/ha
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• AGL_BIOM_2017_RATE: 350
Name: > 400 Tons/ha
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• AGL_BIOM_2017_RATE: 734.2799

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 12/12/2023 8:00:29 PM

Schema Last Edit Date: 10/12/2023 10:18:42 PM

Data Last Edit Date: 10/12/2023 10:18:42 PM

Supported Operations:   Query   Query Pivot   Query Top Features   Query Analytic   Query Bins   Generate Renderer   Validate SQL   Get Estimates   ConvertFormat