tl5k_veg_u6

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Alaska Geobotany Center

Publication_Date: Unknown

Title: tl5k_veg_u6

Geospatial_Data_Presentation_Form: vector digital data

Online_Linkage: \\137.229.50.172\geodata\arcticAtlasMaster.gdb

Description:

Abstract:

The map encloses a 20 km^2 area surrounding Toolik Lake that stretches from the Dalton Highway on the east to Jade Mountain on the west. It includes the Toolik Field Station, the old Toolik Lake pipeline construction camp gravel pad and airstrip on the northeast side ot he lake and the primary terrestrial research areas on the south, west and east sides of the lake, as well as several smaller research lakes in the immediate vicinity of Toollik Lake. The area contains surfaces with irregular topography that were glaciated during the Late Pleistocene. The map portrays the physiognomy of the dominant plant communities in each mapped polygon. Fifty-one landcover types were recognized in the field (minimum mapping unit approximately 250 m^2). These were later grouped into the 14 physiognomic vegetation units on the map, which correspond to the same units on the 1:63,360-scale map of the upper Kuparuk River region.
BARREN AREAS: 1. Barren, Unvegetated. Unvegetated natural and anthropogenic barrens. 2. Lichens on rocks, Lichen communities on rocks, including Cetraria nigricans-Rhizocarpon geographicum. Xeric blockfields, glacial erratics. 3. Partially vegetated barrens and revegetated disturbed areas, Revegetated gravel pads (e.g., Festuca rubra or Salix alaxensis). Partially vegetated disturbed barrens on gravel pads, abandoned roads, bulldozed areas.
MOIST GRAMINOID TUNDRA: 4. Tussock sedge, dwarf-shrub, moss tundra. Moist acidic tussock tundra complexes dominated by graminoids. Dominant plant communities include: Eriophorum vaginatum-Sphagnum and Carex bigelowii-Sphagnum. Mesic to subhygric, acidic, shallow to moderate snow. Stable slopes. Some areas on steeper slopes with solifluction are dominated by Bigelow sedge (Carex bigelowii).
5. Nontussock sedge, dwarf-shrub, moss tundra. Moist nonacidic tundra complexes. Dominant plant communities include: Carex bigelowii-Dryas integrifolia and other subtypes of this unit (e.g., Salix glauca, Equisetum arvense and Cassiope tetragona). Includes some miscellaneous graminoid communities mostly on disturbed areas, such as Deschampsia caespitosa; Rumex arcticus-Carex saxatilis; Salix chamissonis-Carex aquatilis; Ranunculus pedatifidus-Poa glauca. Mesic to subhygric, circumneutral, shallow to moderate snow. Solifluction areas and somewhat unstable slopes, mainly on Itkillik II glacial surfaces. Some south-facing slopes have scattered glaucous willow (Salix glauca). Also includes some miscellaneous graminoid-dominated sites: deep-snow stream margins, landslides, some rocky drained lake basins and animal dens.
6. Sedge, moss tundra (poor fens), Nutrient-poor fen wetland complexes. Dominant plant communities include: Lower microsites: Eriophorum scheuchzeri-Carex rotundata. Raised microsites: Sphagnum lenense-Salix fuscescens. Subhydric to hydric, acidic (pH < 4.5). Wet meadows, poor fens in colluvial basins - mainly on older (Itkillik I) glacial surfaces.
7. Sedge, moss tundra (fens) Nutrient-rich fen wetland complexes. Dominant plant communities include: Lower microsites: Carex aquatilis-Carex chordorrhiza; Eriophorum angustifolium-Carex aquatilis, Carex aquatilis-Scorpidium scorpioides. Raised microsites: Trichophorum caespitosum-Tomentypnum nitens and Carex bigelowii-Dryas integrifolia. Includes a few other miscellaneous wetland types. Subhydric to hydric, minerotrophic (pH > 4.5). Water tracks, stream margins, fens, flarks on solifluction slopes - mainly on younger (Itkillik II) glacial surfaces.
8. Water and herbaceous marsh, Unvegetated water; graminoid marsh Arctophila fulva and Sparganium hyperboreus-Hippuris vulgaris. Lakes, ponds and streams; aquatic vegetation in some protected sites.
PROSTRATE SHRUB TUNDRA: 9. Prostrate dwarf-shrub, fruticose-lichen tundra. Dry acidic tundra complexes. Dominant plant communities include Dryas octopetala-Selaginella sibirica; Arctous alpina-Hierochloë alpina, typical subtype, Salix phlebophylla subtype or Vaccinium vitis-idaea subtype. Xeric to xeromesic, acidic, shallow snow. Exposed sites on glacial till, outwash, ridge tops, exposed slopes, dry river terraces.
10. Prostrate dwarf-shrub, sedge, forb, fruticose-lichen tundra (nonacidic). Dry nonacidic tundra complexes. Dominant plant communities include Dryas integrifolia-Oxytropis nigrescens, Dryas integrifolia-O. maydelliana, Dryas integrifolia-Astragalus umbellatus, Dryas integrifolia-Dicranum elongatum and undifferentiated Dryas communities. Xeromesic to mesic, nonacidic with shallow snow cover. Exposed sites on dry river terraces, recent alluvium; dry microsites in nonsorted-stripe complexes. Dominated by Dryas integrifolia.
11. Hemi-prostrate and prostrate dwarf-shrub, forb, moss, fruticose-lichen tundra. Snowbed communities dominated by either Cassiope tetragona or Salix rotundifolia. These communities are not differentiated at this scale, but include Cassiope tetragona-Carex microchaeta (acidic sites); Cassiope tetragona-Dryas integrifolia (nonacidic sites); Salix rotundifolia-Sanionia uncinata (deep snowbeds). Includes all snowbed types.
12. Hemi-prostrate dwarf-shrub, fruticose-lichen tundra. Dry or moist shrublands with very low-growing or creeping dwarf-shrubs. Dominant plant communities include Betula nana-Hierochloë alpina; Salix pulchra-Hierochloë alpina; and those dominated by Ledum palustre ssp. decumbens, Empetrum nigrum or Vaccinium uliginosum. Subxeric to mesic, acidic, with shallow snow. Shallow depressions on dry glacial till or outwash.
ERECT-SHRUB TUNDRA 13. Dwarf-shrub or low-shrub, sedge, moss tundra Moist acidic tundra complexes dominated by shrubs, including shrubby tussock tundra. Dominant plant communities include Betula nana-Eriophorum vaginatum and Salix pulchra-Carex bigelowii. Also dwarf-shrub tundra dominated by dwarf birch or willows. Dominant plant communities include Betula nana-Rubus chamaemorus and Salix pulchra-Sphagnum. Mesic to subhygric, moderate snow. Lower slopes and upland water-track margins, often with solifluction. Or palsas and high-centered polygons.
14. Low and tall shrublands. A wide variety of low to tall shrublands. Dominant plant communities include those growing in upland water tracks such as Salix pulchra-Eriophorum angustifolium and Eriophorum angustifolium-Sphagnum squarrosum; those growing along streams such as Salix pulchra-Dasiphora fruticosa and other low and tall shrublands; upland shrublands dominated by Salix glauca and/or Alnus crispa or Populus balsamifera and shrublands on river gravels dominated by feltleaf willow (S. alaxensis) or lanate willow (S. richardsonii). Low shrubs in upland water tracks, streamsides and south facing slopes, mesic to subhydric, often with deep snow.

Purpose:

Vegetation map of the Toolik Lake area for use by various projects

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: unknown

Currentness_Reference: Unknown

Status:

Progress: In work

Maintenance_and_Update_Frequency: Unknown

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -149.670312

East_Bounding_Coordinate: -149.545211

North_Bounding_Coordinate: 68.656236

South_Bounding_Coordinate: 68.609407

Keywords:

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category

Theme_Keyword: biota

Theme_Keyword: environment

Theme:

Theme_Keyword_Thesaurus: Alaska Geobotany Center

Theme_Keyword: tl5k

Theme_Keyword: ITUM

Theme_Keyword: vegetation

Theme_Keyword: physiogonomy

Theme_Keyword: tundra

Place:

Place_Keyword_Thesaurus: Alaska Geobotany Center

Place_Keyword: arctic

Place_Keyword: Alaska

Place_Keyword: northslope

Place_Keyword: Upper Kaparuk River region

Place_Keyword: Toolik Lake area

Access_Constraints: Unknown

Use_Constraints:

Data provided by the Alaska Geobotany Center are copyright protected under the provisions of a Creative Commons Attribution-NonCommercial-ShareAlike License (<http://creativecommons.org/licenses/by-nc-sa/1.0/>). Materials may be freely downloaded, reprinted and redistributed for non-commercial use. Reproduction and redistribution of the materials on this web site, including derivative works, shall give credit to the Alaska Geobotany Center and remain subject to the above license. Any web pages that use this material shall contain a link pointing to the Alaska Geobotany Center home page (<http://www.geobotany.uaf.edu/>).

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Alaska Geobotany Center

Contact_Person: Hilmar A. Maier

Contact_Position: GIS and Remote Sensing Manager

Contact_Address:

Address_Type: physical address

Address: Alaska Geobotany Center

Address: Institute of Arctic Biology

Address: University of Alaska Fairbanks

City: Fairbanks

State_or_Province: AK

Postal_Code: 99775

Country: US

Contact_Voice_Telephone: +1.907.474.1540

Contact_Voice_Telephone: +1.907.474.2459

Contact_Voice_Telephone: +1.907.474.2460

Contact_Electronic_Mail_Address: hilmar.maier@alaska.edu

Contact_Instructions: <http://www.geobotany.org/>

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850

Data_Quality_Information:

Lineage:

Process_Step:

Process_Description: Dataset copied.

Process_Date: 20100129

Process_Time: 10382100

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: G-polygon

Point_and_Vector_Object_Count: 14

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 6

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999600

Longitude_of_Central_Meridian: -147.000000

Latitude_of_Projection_Origin: 0.000000

False_Easting: 500000.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000100

Ordinate_Resolution: 0.000100

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257222

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Resolution: 0.000100

Altitude_Encoding_Method:

Explicit elevation coordinate included with horizontal coordinates

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: tl5k_veg_u6

Attribute:

Attribute_Label: OBJECTID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: veg

Attribute_Definition: Vegetation

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1

Enumerated_Domain_Value_Definition: Barren

Enumerated_Domain_Value_Definition_Source: AGC

Enumerated_Domain:

Enumerated_Domain_Value: 2

Enumerated_Domain_Value_Definition: Lichens on rocks

Enumerated_Domain_Value_Definition_Source: AGC

Enumerated_Domain:

Enumerated_Domain_Value: 3

Enumerated_Domain_Value_Definition: Partially vegetated barrens and revegetated disturbed areas

Enumerated_Domain_Value_Definition_Source: AGC

Enumerated_Domain:

Enumerated_Domain_Value: 4

Enumerated_Domain_Value_Definition: Tussock sedge, dwarf-shrub, moss tundra

Enumerated_Domain_Value_Definition_Source: AGC

Enumerated_Domain:

Enumerated_Domain_Value: 5

Enumerated_Domain_Value_Definition: Nontussock sedge, dwarf-shrub, moss tundra

Enumerated_Domain_Value_Definition_Source: AGC

Enumerated_Domain:

Enumerated_Domain_Value: 6

Enumerated_Domain_Value_Definition: Sedge, moss tundra (poor fens)

Enumerated_Domain_Value_Definition_Source: AGC

Enumerated_Domain:

Enumerated_Domain_Value: 7

Enumerated_Domain_Value_Definition: Sedge, moss tundra (fens)

Enumerated_Domain_Value_Definition_Source: AGC

Enumerated_Domain:

Enumerated_Domain_Value: 8

Enumerated_Domain_Value_Definition: Water and herbaceous marsh

Enumerated_Domain_Value_Definition_Source: AGC

Enumerated_Domain:

Enumerated_Domain_Value: 9

Enumerated_Domain_Value_Definition: Prostrate dwarf-shrub, fruticose-lichen tundra

Enumerated_Domain_Value_Definition_Source: AGC

Enumerated_Domain:

Enumerated_Domain_Value: 10

Enumerated_Domain_Value_Definition: Prostrate dwarf-shrub, sedge, forb, fruticose-lichen tundra

Enumerated_Domain_Value_Definition_Source: AGC

Enumerated_Domain:

Enumerated_Domain_Value: 11

Enumerated_Domain_Value_Definition:

Hemi-prostrate and prostrate dwarf-shrub, forb, moss, fruticose-lichen tundra

Enumerated_Domain_Value_Definition_Source: AGC

Enumerated_Domain:

Enumerated_Domain_Value: 12

Enumerated_Domain_Value_Definition: Hemi-prostrate dwarf-shrub, fruitcose-lichen tundra

Enumerated_Domain_Value_Definition_Source: AGC

Enumerated_Domain:

Enumerated_Domain_Value: 13

Enumerated_Domain_Value_Definition: Dwarf-shrub or low-shrub, sedge, moss tundra

Enumerated_Domain_Value_Definition_Source: AGC

Enumerated_Domain:

Enumerated_Domain_Value: 14

Enumerated_Domain_Value_Definition: Low and tall shrublands

Enumerated_Domain_Value_Definition_Source: AGC

Attribute:

Attribute_Label: Shape_Length

Attribute_Definition: Length of feature in internal units.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Attribute:

Attribute_Label: Shape_Area

Attribute_Definition: Area of feature in internal units squared.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Alaska Geobotany Center

Contact_Person: Hilmar A. Maier

Contact_Position: GIS and Remote Sensing Manager

Contact_Address:

Address_Type: physical address

Address: Alaska Geobotany Center

Address: Institute of Arctic Biology

Address: University of Alaska Fairbanks

City: Fairbanks

State_or_Province: AK

Postal_Code: 99775

Country: US

Contact_Voice_Telephone: +1.907.474.1540

Contact_Voice_Telephone: +1.907.474.2459

Contact_Voice_Telephone: +1.907.474.2460

Contact_Electronic_Mail_Address: dataManager@geobotany.org

Contact_Instructions: <http://www.geobotany.org/>

Resource_Description: Downloadable Data

Distribution_Liability: Unknown

Metadata_Reference_Information:

Metadata_Date: 20100203

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Alaska Geobotany Center

Contact_Person: Gayle Neufeld

Contact_Position: GIS technician

Contact_Address:

Address_Type: physical address

Address: Alaska Geobotany Center

Address: Institute of Arctic Biology

Address: University of Alaska Fairbanks

City: Fairbanks

State_or_Province: AK

Postal_Code: 99775

Country: US

Contact_Voice_Telephone: +1.907.474.1540

Contact_Voice_Telephone: +1.907.474.2459

Contact_Voice_Telephone: +1.907.474.2460

Contact_Electronic_Mail_Address: dataManager@geobotany.org

Contact_Instructions: <http://www.geobotany.org/>

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile