Name: Percent tundra

Display Field: HUC_12

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: <A href="https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=%7B9335d1c9-a5e3-4c44-a498-9cd597afd515%7D">Alaska Full Metadata</A> This map depicts the percentage of land comprised of tundra in each subwatershed (12-digit HUC) for Alaska. For this map, EnviroAtlas includes the dwarf shrub, sedge/herbaceous, lichen, and moss classes from the 2016 National Land Cover Database.

Copyright Text:

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Spatial Reference: 102100  (3857)

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Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• Shape ( type: esriFieldTypeGeometry, alias: Shape )
• HUC_12 ( type: esriFieldTypeString, alias: HUC_12, length: 12 )
• Pct_Land ( type: esriFieldTypeDouble, alias: Pct_Land )
• AWDBYHUC ( type: esriFieldTypeInteger, alias: Agricultural water use (gallons/day) )
• AWD_MGAL ( type: esriFieldTypeDouble, alias: Agricultural water use (million gallons/day) )
• AWD_OXN_T ( type: esriFieldTypeDouble, alias: Annual oxidized nitrogen wet deposition (kg/ha) )
• AWD_REDN_T ( type: esriFieldTypeDouble, alias: Annual reduced nitrogen wet deposition (kg/ha) )
• AWD_S_T ( type: esriFieldTypeDouble, alias: Annual sulfur wet deposition (kg/ha) )
• DD_OXN_T ( type: esriFieldTypeDouble, alias: Annual oxidized nitrogen dry deposition (kg/ha) )
• DD_REDN_T ( type: esriFieldTypeDouble, alias: Annual reduced nitrogen dry deposition (kg/ha) )
• DD_S_T ( type: esriFieldTypeDouble, alias: Annual sulfur dry deposition (kg/ha) )
• TD_OXN_T ( type: esriFieldTypeDouble, alias: Total annual oxidized nitrogen deposition (kg/ha) )
• TD_REDN_T ( type: esriFieldTypeDouble, alias: Total annual reduced nitrogen deposition (kg/ha) )
• TD_S_T ( type: esriFieldTypeDouble, alias: Total annual sulfur deposition (kg/ha) )
• TD_N_T ( type: esriFieldTypeDouble, alias: Total annual nitrogen deposition (kg/ha) )
• MeanPrecip ( type: esriFieldTypeSingle, alias: Average annual precipitation (inches/yr) )
• Bird_All_MAX ( type: esriFieldTypeDouble, alias: Maximum bird species richness )
• Bird_All_MEAN ( type: esriFieldTypeDouble, alias: Mean bird species richness )
• Bird_All_NIB ( type: esriFieldTypeDouble, alias: NIB bird species richness )
• Bird_Aud_end_MAX ( type: esriFieldTypeDouble, alias: Maximum number of bird species vulnerable to range loss due to climate change by 2050 )
• Bird_Aud_end_MEAN ( type: esriFieldTypeDouble, alias: Mean number of bird species vulnerable to range loss due to climate change by 2050 )
• Bird_Aud_end_NIB ( type: esriFieldTypeDouble, alias: NIB number of bird species vulnerable to range loss due to climate change by 2050 )
• Bird_Aud_thr_MAX ( type: esriFieldTypeDouble, alias: Maximum number of bird species vulnerable to range loss due to climate change by 2080 )
• Bird_Aud_thr_MEAN ( type: esriFieldTypeDouble, alias: Mean number of bird species vulnerable to range loss due to climate change by 2080 )
• Bird_Aud_thr_NIB ( type: esriFieldTypeDouble, alias: NIB number of bird species vulnerable to range loss due to climate change by 2080 )
• Bird_BCC_MAX ( type: esriFieldTypeDouble, alias: Maximum modeled State of the Birds species of conservation concern )
• Bird_BCC_MEAN ( type: esriFieldTypeDouble, alias: Mean modeled State of the Birds species of conservation concern )
• Bird_BCC_NIB ( type: esriFieldTypeDouble, alias: NIB modeled State of the Birds species of conservation concern )
• Bird_PIF_MAX ( type: esriFieldTypeDouble, alias: Maximum modeled Partners in Flight Watch List bird species )
• Bird_PIF_MEAN ( type: esriFieldTypeDouble, alias: Mean modeled Partners in Flight Watch List bird species )
• Bird_PIF_NIB ( type: esriFieldTypeDouble, alias: NIB modeled Partners in Flight Watch List bird species )
• AMPH_MAX ( type: esriFieldTypeDouble, alias: Maximum amphibian species richness )
• BIGGA_MAX ( type: esriFieldTypeDouble, alias: Maximum big game species richness )
• FURB_MAX ( type: esriFieldTypeDouble, alias: Maximum fur bearer species richness )
• HARV_MAX ( type: esriFieldTypeDouble, alias: Maximum total harvestable species richness )
• MAM_MAX ( type: esriFieldTypeDouble, alias: Maximum mammal species richness )
• SMGA_MAX ( type: esriFieldTypeDouble, alias: Maximum small game species richness )
• TE_MAX ( type: esriFieldTypeDouble, alias: Maximum modeled threatened and endangered vertebrate species )
• WTFL_MAX ( type: esriFieldTypeDouble, alias: Maximum waterfowl species richness )
• BNF ( type: esriFieldTypeDouble, alias: Natural biological nitrogen fixation (kg N/ha/yr) )
• CBNF_Mean ( type: esriFieldTypeSingle, alias: Cultivated biological nitrogen fixation (kg N/ha/yr) )
• FRUITHECTARES ( type: esriFieldTypeDouble, alias: Hectares of fruit crops )
• VEGHECTARES ( type: esriFieldTypeDouble, alias: Hectares of vegetable crops )
• FRUITCOUNT ( type: esriFieldTypeDouble, alias: Number of fruit crop types (annually) )
• VEGCOUNT ( type: esriFieldTypeDouble, alias: Number of vegetable crop types (annually) )
• FRUITYIELDTONS ( type: esriFieldTypeDouble, alias: Fruit yields (tons/yr) )
• VEGYIELDTONS ( type: esriFieldTypeDouble, alias: Vegetable yields (tons/yr) )
• FRUITYIELD ( type: esriFieldTypeDouble, alias: Fruit yields (thousand tons/yr) )
• VEGYIELD ( type: esriFieldTypeDouble, alias: Vegetable yields (thousand tons/yr) )
• DWDbyHUC ( type: esriFieldTypeDouble, alias: Domestic water use (gallons/day) )
• DWD_mgal ( type: esriFieldTypeDouble, alias: Domestic water use (million gallons/day) )
• Percent_of_HUC_Rare ( type: esriFieldTypeDouble, alias: Percent rare ecosystem forms )
• Percent_Rare_Area_Protected ( type: esriFieldTypeDouble, alias: Percent rare ecosystem forms protected )
• SNFA_MEAN ( type: esriFieldTypeSingle, alias: Synthetic nitrogen fertilizer application )
• COT_TONS ( type: esriFieldTypeDouble, alias: Cotton yields (tons/yr) )
• COT_HA ( type: esriFieldTypeDouble, alias: Hectares of cotton crops )
• COT_DOLS ( type: esriFieldTypeDouble, alias: Value of cotton crops (dollars/yr) )
• GRAIN_TONS ( type: esriFieldTypeDouble, alias: Grain yields (tons/yr) )
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• GRAIN_DOLS ( type: esriFieldTypeDouble, alias: Value of grain crops (dollars/yr) )
• GRAIN_COUN ( type: esriFieldTypeDouble, alias: Number of grain crop types (annually) )
• GRAIN_KTONS ( type: esriFieldTypeDouble, alias: Grain yields (thousand tons/yr) )
• COT_KTONS ( type: esriFieldTypeDouble, alias: Cotton yields (thousand tons/yr) )
• COT_KDOLS ( type: esriFieldTypeDouble, alias: Value of cotton crops (thousand dollars/yr) )
• GRAIN_KDOLS ( type: esriFieldTypeDouble, alias: Value of grain crops (thousand dollars/yr) )
• WaterbodyArea ( type: esriFieldTypeDouble, alias: Waterbody area (km2) )
• TotalLength ( type: esriFieldTypeDouble, alias: Stream length (km) )
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• MercuryImpLen ( type: esriFieldTypeDouble, alias: Stream length impaired by mercury (km) )
• MetalsImpLen ( type: esriFieldTypeDouble, alias: Stream length impaired by metals other than mercury (km) )
• NuisanceImpLen ( type: esriFieldTypeDouble, alias: Stream length impaired by nuisance species (km) )
• NutImpLen ( type: esriFieldTypeDouble, alias: Stream length impaired by nutrients (km) )
• OrgEnrO2DepImpLen ( type: esriFieldTypeDouble, alias: Stream length impaired by organic enrichment or oxygen depletion (km) )
• PathogenImpLen ( type: esriFieldTypeDouble, alias: Stream length impaired by pathogens (km) )
• PesticidesImpLen ( type: esriFieldTypeDouble, alias: Stream length impaired by pesticides (km) )
• pHImpLen ( type: esriFieldTypeDouble, alias: Stream length impaired by pH, acidity, or caustic conditions (km) )
• SedTurbImpLen ( type: esriFieldTypeDouble, alias: Stream length impaired by sediment or turbidity (km) )
• TempImpLen ( type: esriFieldTypeDouble, alias: Stream length impaired for temperature (km) )
• OtherImpLen ( type: esriFieldTypeDouble, alias: Stream length with any other impairment (km) )
• TotImpLen ( type: esriFieldTypeDouble, alias: Total stream length with any impairment (km) )
• SUM_INDGAL ( type: esriFieldTypeInteger, alias: Industrial water use (gallons/day) )
• IWD_MGAL ( type: esriFieldTypeDouble, alias: Industrial water use (million gallons/day) )
• N_INDEX ( type: esriFieldTypeSingle, alias: Percent natural land cover )
• PFOR ( type: esriFieldTypeSingle, alias: Percent forest )
• PWETL ( type: esriFieldTypeSingle, alias: Percent wetlands )
• PDEV ( type: esriFieldTypeSingle, alias: Percent developed area )
• PAGT ( type: esriFieldTypeSingle, alias: Percent agriculture )
• PAGP ( type: esriFieldTypeSingle, alias: Percent pasture )
• PAGC ( type: esriFieldTypeSingle, alias: Percent cropland )
• PFOR90 ( type: esriFieldTypeSingle, alias: Percent forest and woody wetlands )
• PWETL95 ( type: esriFieldTypeSingle, alias: Percent emergent herbaceous wetlands )
• ManureMean ( type: esriFieldTypeSingle, alias: Manure application (kg N/ha/yr) )
• NATSmall ( type: esriFieldTypeDouble, alias: Percent small size patches of natural land cover )
• NATMedium ( type: esriFieldTypeDouble, alias: Percent medium size patches of natural land cover )
• NATLarge ( type: esriFieldTypeDouble, alias: Percent large size patches of natural land cover )
• AQ_TOT ( type: esriFieldTypeInteger, alias: Total number of at-risk aquatic species observed )
• WT_TOT ( type: esriFieldTypeInteger, alias: Total number of at-risk wetland species observed )
• TR_TOT ( type: esriFieldTypeInteger, alias: Total number of at-risk terrestrial species observed )
• AQ_TOT_A ( type: esriFieldTypeInteger, alias: Number of at-risk aquatic animal species observed )
• WT_TOT_A ( type: esriFieldTypeInteger, alias: Number of at-risk wetland animal species observed )
• TR_TOT_A ( type: esriFieldTypeInteger, alias: Number of at-risk terrestrial animal species observed )
• AQ_TOT_P ( type: esriFieldTypeInteger, alias: Number of at-risk aquatic plant species observed )
• WT_TOT_P ( type: esriFieldTypeInteger, alias: Number of at-risk wetland plant species observed )
• TR_TOT_P ( type: esriFieldTypeInteger, alias: Number of at-risk terrestrial plant species observed )
• NIDamCount ( type: esriFieldTypeDouble, alias: Number of high hazard potential dams )
• NIDamMGAL ( type: esriFieldTypeDouble, alias: Water supply from NID reservoirs (million gallons) )
• Acres_Unpo ( type: esriFieldTypeDouble, alias: Acres of pollinated crops with no nearby pollinator habitat )
• PGAPSTAT3 ( type: esriFieldTypeSingle, alias: Percent GAP status 3 )
• PIUCN_IA ( type: esriFieldTypeSingle, alias: Percent IUCN status IA )
• PIUCN_II ( type: esriFieldTypeSingle, alias: Percent IUCN status II )
• PIUCN_III ( type: esriFieldTypeSingle, alias: Percent IUCN status III )
• PIUCN_IV ( type: esriFieldTypeSingle, alias: Percent IUCN status IV )
• PIUCN_V ( type: esriFieldTypeSingle, alias: Percent IUCN status V )
• PIUCN_VI ( type: esriFieldTypeSingle, alias: Percent IUCN status VI )
• PIUCN_IB ( type: esriFieldTypeSingle, alias: Percent IUCN status IB )
• PIUCN_ALL ( type: esriFieldTypeSingle, alias: Percent land with any IUCN status )
• PGAPSTAT1_2 ( type: esriFieldTypeDouble, alias: Percent GAP status 1 and 2 )
• PGAPSTAT123 ( type: esriFieldTypeDouble, alias: Percent GAP status 1, 2, and 3 )
• PAGHYD80 ( type: esriFieldTypeDouble, alias: Percent agriculture on hydric soil )
• SolE_Area ( type: esriFieldTypeDouble, alias: Area of solar energy (km2) )
• SolE_Mean ( type: esriFieldTypeDouble, alias: Average annual daily potential solar energy (kWh/m2/day) )
• PIMPV ( type: esriFieldTypeDouble, alias: Percent impervious area )
• PctPRWAg ( type: esriFieldTypeSmallInteger, alias: Percent potentially restorable wetlands on agricultural land )
• BG_Demand ( type: esriFieldTypeDouble, alias: Big game hunting recreation demand )
• BW_Demand ( type: esriFieldTypeDouble, alias: Bird watching recreation demand )
• FF_Demand ( type: esriFieldTypeDouble, alias: Freshwater fishing recreation demand )
• Total_Hist ( type: esriFieldTypeInteger, alias: Number of historic places )
• strlak5p ( type: esriFieldTypeDouble, alias: Percent of stream and shoreline with 5% or more impervious cover within 30 meters )
• strlak15p ( type: esriFieldTypeDouble, alias: Percent of stream and shoreline with 15% or more impervious cover within 30 meters )
• MB_Demand ( type: esriFieldTypeDouble, alias: Migratory bird hunting recreation demand )
• Rep_All_MAX ( type: esriFieldTypeInteger, alias: Maximum reptile species richness )
• Rep_All_MEAN ( type: esriFieldTypeDouble, alias: Mean reptile species richness )
• Rep_All_NIB ( type: esriFieldTypeDouble, alias: NIB reptile species richness )
• AvgWindEnergy ( type: esriFieldTypeDouble, alias: Annual average potential wind energy )
• CRP_acres ( type: esriFieldTypeString, alias: Acres of land enrolled in CRP, length: 255 )
• RFOR9045 ( type: esriFieldTypeSingle, alias: Percent forest and woody wetlands in stream buffer )
• RFOR45 ( type: esriFieldTypeSingle, alias: Percent forest land in stream buffer )
• RNAT45 ( type: esriFieldTypeSingle, alias: Percent natural land cover in stream buffer )
• TerrVert_Max ( type: esriFieldTypeInteger, alias: Maximum total vertebrate species richness )
• TerrVert_Mean ( type: esriFieldTypeDouble, alias: Mean total vertebrate species richness )
• TerrVert_NIB ( type: esriFieldTypeDouble, alias: NIB total vertebrate species richness )
• Amph_Mean ( type: esriFieldTypeDouble, alias: Mean amphibian species richness )
• Amph_NIB ( type: esriFieldTypeDouble, alias: NIB amphibian species richness )
• Mam_Mean ( type: esriFieldTypeDouble, alias: Mean mammal species richness )
• Mam_NIB ( type: esriFieldTypeDouble, alias: NIB mammal species richness )
• Bird_Summer_Max ( type: esriFieldTypeInteger, alias: Maximum summer bird species richness )
• Bird_Summer_Mean ( type: esriFieldTypeDouble, alias: Mean summer bird species richness )
• Bird_Summer_NIB ( type: esriFieldTypeDouble, alias: NIB summer bird species richness )
• Bird_Winter_Max ( type: esriFieldTypeInteger, alias: Maximum winter bird species richness )
• Bird_Winter_Mean ( type: esriFieldTypeDouble, alias: Mean winter bird species richness )
• Bird_Winter_NIB ( type: esriFieldTypeDouble, alias: NIB winter bird species richness )
• TerrVert_Rare_Max ( type: esriFieldTypeInteger, alias: Maximum rare vertebrate species richness )
• TerrVert_Rare_Mean ( type: esriFieldTypeDouble, alias: Mean rare vertebrate species richness )
• TerrVert_Rare_NIB ( type: esriFieldTypeDouble, alias: NIB rare vertebrate species richness )
• Amph_Rare_Max ( type: esriFieldTypeInteger, alias: Maximum rare amphibian species richness )
• Amph_Rare_Mean ( type: esriFieldTypeDouble, alias: Mean rare amphibian species richness )
• Amph_Rare_NIB ( type: esriFieldTypeDouble, alias: NIB rare amphibian species richness )
• Bird_Rare_Max ( type: esriFieldTypeInteger, alias: Maximum rare bird species richness )
• Bird_Rare_Mean ( type: esriFieldTypeDouble, alias: Mean rare bird species richness )
• Bird_Rare_NIB ( type: esriFieldTypeDouble, alias: NIB rare bird species richness )
• Mam_Rare_Max ( type: esriFieldTypeInteger, alias: Maximum rare mammal species richness )
• Mam_Rare_Mean ( type: esriFieldTypeDouble, alias: Mean rare mammal species richness )
• Mam_Rare_NIB ( type: esriFieldTypeDouble, alias: NIB rare vertebrate species richness )
• Rep_Rare_Max ( type: esriFieldTypeInteger, alias: Maximum rare reptile species richness )
• Rep_Rare_Mean ( type: esriFieldTypeDouble, alias: Mean rare reptile species richness )
• Rep_Rare_NIB ( type: esriFieldTypeDouble, alias: NIB rare reptile species richness )
• Harv_Mean ( type: esriFieldTypeDouble, alias: Mean total harvestable species richness )
• Harv_NIB ( type: esriFieldTypeDouble, alias: NIB total harvestable species richness )
• BigGa_Mean ( type: esriFieldTypeDouble, alias: Mean big game species richness )
• BigGa_NIB ( type: esriFieldTypeDouble, alias: NIB big game species richness )
• Furb_Mean ( type: esriFieldTypeDouble, alias: Mean fur bearer species richness )
• Furb_NIB ( type: esriFieldTypeDouble, alias: NIB fur bearer species richness )
• SMGA_Mean ( type: esriFieldTypeDouble, alias: Mean small game species richness )
• SMGA_NIB ( type: esriFieldTypeDouble, alias: NIB small game species richness )
• Wtfl_Mean ( type: esriFieldTypeDouble, alias: Mean waterfowl species richness )
• Wtfl_NIB ( type: esriFieldTypeDouble, alias: NIB waterfowl species richness )
• TE_Mean ( type: esriFieldTypeDouble, alias: Mean modeled threatened and endangered vertebrate species )
• TE_NIB ( type: esriFieldTypeDouble, alias: NIB modeled threatened and endangered vertebrate species )
• G1G2G3_Spec_Max ( type: esriFieldTypeInteger, alias: Maximum modeled G1, G2, G3 species )
• G1G2G3_Spec_Mean ( type: esriFieldTypeDouble, alias: Mean modeled G1, G2, G3 species )
• G1G2G3_Spec_NIB ( type: esriFieldTypeDouble, alias: NIB modeled G1, G2, G3 species )
• IUCN_End_Max ( type: esriFieldTypeInteger, alias: Maximum modeled IUCN threatened terrestrial vertebrate species )
• IUCN_End_Mean ( type: esriFieldTypeDouble, alias: Mean modeled IUCN threatened terrestrial vertebrate species )
• IUCN_End_NIB ( type: esriFieldTypeDouble, alias: NIB modeled IUCN threatened terrestrial vertebrate species )
• PIF_CSD_Max ( type: esriFieldTypeInteger, alias: Maximum common bird species in steep decline )
• PIF_CSD_Mean ( type: esriFieldTypeDouble, alias: Mean common bird species in steep decline )
• PIF_CSD_NIB ( type: esriFieldTypeDouble, alias: NIB common bird species in steep decline )
• PARC_Max ( type: esriFieldTypeInteger, alias: Maximum modeled Partners in Amphibian and Reptile Conservation (PARC) species )
• PARC_Mean ( type: esriFieldTypeDouble, alias: Mean modeled Partners in Amphibian and Reptile Conservation (PARC) species )
• PARC_NIB ( type: esriFieldTypeDouble, alias: NIB modeled Partners in Amphibian and Reptile Conservation (PARC) species )
• Shape_Length ( type: esriFieldTypeDouble, alias: Shape_Length )
• Shape_Area ( type: esriFieldTypeDouble, alias: Shape_Area )
• PTUN ( type: esriFieldTypeSingle, alias: Percent tundra )
• PSHB ( type: esriFieldTypeSingle, alias: Percent shrubland )
• PHRB ( type: esriFieldTypeSingle, alias: Percent grassland or herbaceous )
• PICE ( type: esriFieldTypeSingle, alias: Percent perennial ice or snow )

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