Name: Douglas Fir Structural Classification

Display Field: OID_COPY

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: <div style="text-align:Left; font-size:12pt;"><p><span><span>Tukman Geospatial classified each Douglas fir stand in Marin County, assigning it a structural class that represents tree height and vertical structure. Structural classes were assigned using a combination of the stand’s lidar derived mean height and the stand’s coefficient of variation for mean height (the standard deviation of mean stand height divided by mean stand height). Using these two variables, five structural classes were developed using ground condition data from Alison Forrestel and Carl Sanders as a guide. </span></span><span style="font-size:12pt; font-family:inherit;">Tree height is represented first in the classification as “Small”, “Medium to Large”, or “Largest”. Vertical structure is represented second, as “LESS” or “MORE”. The &quot;Largest Stands&quot; category includes all stands of over 140 feet mean height. </span><span style="font-size:12pt; font-family:inherit;">This metric represents the state of the landscape in winter 2019, when countywide lidar was collected.</span></p><p style="margin-top:0px; margin-bottom:1.5rem; 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 <a href="https://www.onetam.org/sites/default/files/pdfs/marin_regional_forest_health_strategy_2023.pdf" style="color:rgb(0, 97, 155); text-decoration-line:none;">Marin Regional Forest Health Strategy</a> (Page 252 - Structural Classification of Conifer Forest Types) for more information.</p></div>

Copyright Text: GGNPC, OneTam, Tukman Geospatial

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Spatial Reference: 102100 (3857)

Drawing Info:

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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)

Types:

ID: Small (<60 ft.) - LESS Vertical Structure
Name: Small (<60 ft.) - LESS Vertical Structure
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• Field Name: MAP_CLASS_18
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Templates:

Name: Small (<60 ft.) - LESS Vertical Structure
Description:
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Prototype:

Attributes:

• RW_DF_CONDITION_CV_SIMPLE: Small (<60 ft.) - LESS Vertical Structure

---

ID: Small (<60 ft.) - MORE Vertical Structure
Name: Small (<60 ft.) - MORE Vertical Structure
Domains:

• Field Name: MAP_CLASS_18
  Inherited
  
Templates:

Name: Small (<60 ft.) - MORE Vertical Structure
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• RW_DF_CONDITION_CV_SIMPLE: Small (<60 ft.) - MORE Vertical Structure

---

ID: Med to Lge (60-140 ft) - LESS Vertical Structure
Name: Med to Lge (60-140 ft) - LESS Vertical Structure
Domains:

• Field Name: MAP_CLASS_18
  Inherited
  
Templates:

Name: Med to Lge (60-140 ft) - LESS Vertical Structure
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• RW_DF_CONDITION_CV_SIMPLE: Med to Lge (60-140 ft) - LESS Vertical Structure

---

ID: Med to Lge (60-140 ft) - MORE Vertical Structure
Name: Med to Lge (60-140 ft) - MORE Vertical Structure
Domains:

• Field Name: MAP_CLASS_18
  Inherited
  
Templates:

Name: Med to Lge (60-140 ft) - MORE Vertical Structure
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• RW_DF_CONDITION_CV_SIMPLE: Med to Lge (60-140 ft) - MORE Vertical Structure

---

ID: Largest Stands (140 ft. +mean height)
Name: Largest Stands (140 ft. +mean height)
Domains:

• Field Name: MAP_CLASS_18
  Inherited
  
Templates:

Name: Largest Stands (140 ft. +mean height)
Description:
Drawing Tool: esriFeatureEditToolPolygon
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Attributes:

• RW_DF_CONDITION_CV_SIMPLE: Largest Stands (140 ft. +mean height)

---

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

Schema Last Edit Date: 11/28/2023 6:27:52 PM

Data Last Edit Date: 11/28/2023 6:27:52 PM

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