uk25k_veg_u6

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Identification_Information:
Citation:
Citation_Information:
Originator: Alaska Geobotany Center
Publication_Date: Unknown
Title: uk25k_veg_u6
Geospatial_Data_Presentation_Form: vector digital data
Online_Linkage: \\137.229.50.172\geodata\arcticAtlasMaster.gdb
Description:
Abstract:
The vegetation map of the Upper Kaparuk River region covers 751-km^2 in the upper Kaparuk River watershed, including the Toolik Lake and the Imnavait Creek research areas, as well as portions of the Dalton Highway and Trans-Alaskan Pipeline from the northern end of Galbraith Lake to Slope Mountain. The vegetation of the region was stidied and mapped as part of the Arctic Long-Term Ecological Research (LTER) project at Toolik Lake and the Department of Energy R4D (Response, Resistance, Resilience and Recovery of vegetation from Disturbance) project at Imnavait Creek (Waker et al. 1994, Walker and Walker 1996). Fifty-seven plant communities and land-cover types were recognized during the mapping of the upper Kaparuk River region. These were grouped into the 14 physiognomic map units shown here, which aer compatible with the Circumpolar Arctic Vegetation Map (CAVM TEam 2003) and the Alaska Arctic Tundra Vegetation Map (Raynolds et al. 2005).
The physiognomy and their descriptions are as follows:
Barren complex Areas dominated by barren surfaces, crustose lichens, and sparsely vegetated sites with less than 50 plant cover. Includes barren rocks (Code 11), lichen covered siliceous rocks (community type Cetraria nigricans-Rhizocarpon geographicum, code 12), partially vegetated limestone (community type Saxifraga oppositifolia-Saxifraga eschscholtzii, Code 131), barren and partially vegetated river alluvium (community type Epilobium latifolium-Castilleja caudata, code 141), revegetated gravel mines and construction pads (community type Festuca rubra, code 142), and partially vegetated non-sorted circles (community type Anthelia juratzkana-Juncus biglumis, Code 15).
Dry acidic tundra complex Dry areas with acidic soils (pH < 5.0) dominated by prostrate and dwarf shrubs (Arctous alpina, Betula nana, Cassiope tetragona, Dryas octopetela, Ledum decumbens, Salix phlebophylla, Vaccinium vitis-idaea, V. uliginosum), and fruticose lichens (Bryocaulon divergens, Cladina spp., Cetraria spp., Thamnolia spp.) Bryophytes (Polytrichum piliferum, Dicranum elongatum) are not abundant. Typically found on dry glacial till and outwash deposits, steep south facing slopes, and alpine areas in the mountains. Usually includes a mosaic of communities typical of windblown areas (Assoc. Selaginello sibiricae-Dryadetum octopetalae Walker et al. 1994, code 211; and Assoc. Salici phlebophyllae-Arctoetum alpinae Walker et al. 1994, code 212; community type Hierochloe alpina-Betula nana, code 213) and snowbed areas (Assoc. Carici microchaetae-Cassiopetum tetragonae Walker et al. 1994, code 231). Includes vegetation on acidic nonsorted stripes (community type Calamagrostis inexpansa-Cassiope tetragona, code 214), often with inclusions of moist acidic tundra (Assoc. Sphagno-Eriophoretum vaginati Walker et al. 1994, and lichen covered rocks (community type Cetraria nigricans- Rhizocarpon geographicum, code 12). Also includes uncommon fruticose-lichen dominated areas (community type Cladina arbuscula-Stereocaulon tomentosum, code 215).
Dry nonacidic tundra complex Areas on nonacidic soils (pH > 5.0) dominated by Dryas integrifolia, other dwarf and prostrate shrubs (e.g. Salix arctica, S. reticulata), mat and cushion plants (Saxifraga oppositifolia, Oxytropis bryophila and lichens (Lecanora epibryon, Cetraria spp.) Bryophytes (Ditrichum flexicaule, Distichium capillaceum) are not abundant. Includes vegetation on nonacidic stripes (community type Astragalus umbellatus-Dryas integrifolia, code 22) and well-drained slopes and terraces (community type Oxytropis bryophila-Dryas integrifolia) often with significant inclusions of moist nonacidic tundra (Assoc. Dryado integrifolia-Caricetum bigelowii Walker et al. 1994, code 321).
Snowbed complex Areas dominated by Cassiope tetragona, and other dwarf shrubs (Ledum decumbens and Diapensia lapponica in acidic sites and Dryas integrifolia, Salix reticulata and S. rotundifolia in nonacidic sites) and fruticose lichens (Cladina spp. Cetraria spp., Nephroma arctica). Usually with significant components of bryophytes (Hylocomium splendens, Tomentypnum nitens) and the conspicuous forbs Boykinia richardsonii and Novosieversia glacialis. Includes moderately deep acidic snowbeds (Assoc. Carici microchaetae-Cassiopetum tetragonae Walker et al. 1994, code 231) and nonacidic snowbeds (community type Dryas integrifolia-Cassiope tetragona, code 232) and communities of deep snowbeds (community type Salix rotundifolia, code 233). Also includes snowbed subassociations and facies of Dryado integrifolia-Caricetum bigelowii Walker et al. 1994 (code 322) and Sphagno-Eriophoretum vaginati Walker et al. 1994 (code 3113).
Moist acidic tundra complex Areas on acidic soils (pH < 5.0) dominated by tussock-sedges (Eriophorum vaginatum), nontussock sedges (Carex bigelowii), dwarf shrubs (Betula nana, Salix pulchra, Ledum decumbens, Vaccinium spp.) and mosses (Sphagnum spp, Hylocomium splendens, Aulocomnium turgidum). The dominant vegetation of most acidic hillslopes and moderately drained acidic sites. Includes tussock tundra and other graminoid dominated facies of Assoc. Sphagno-Eriophoretum vaginati Walker et al. 1994 (codes 311 and 3111). Usually includes a significant component of nonsorted circles (community type Anthelia juratzkana-Juncus biglumis, Code 15); and may have inclusions of nonsorted stripes (community type Calamagrostis inexpansa-Cassiope tetragona, code 214) and poorly developed water tracks (shrub facies of Sphagno-Eriophoretum vaginati Walker et al. 1994, code 3112).
Moist nonacidic tundra complex Areas on nonacidic soils (pH > 5.0) dominated by nontussock sedges (Carex bigelowii, C. membranacea, Eriophorum triste), prostrate and dwarf shrubs (Dryas integrifolia, Rhododendron lapponicum, Salix arctica, S. reticulata, S. lanata), and mosses (Tomentypnum nitens, Hylocomium splendens, Aulacomnium turgidum). The dominant vegetation of most nonacidic hillslopes. Includes all facies of Assoc. Dryado integrifolia-Caricetum bigelowii Walker et al. 1994, code 321). Usually includes a significant component of nonsorted circles (Community type Saxifraga oppositifolia-Juncus biglumis); nonsorted stripes (community type Astragalus umbellatus-Dryas integrifolia, code 22). Areas with open canopies of low-shrubs (Salix lanata, Salix glauca, Alnus crispa) also occur (code 324).
Shrub tundra Areas dominated by dwarf and low shrubs (Betula spp, Salix spp.) mainly on interfluve areas with well developed moss carpets (Sphagnum spp., Hylocomium splendens). Common on lower hillslopes, in association with water-track complexes, and some floodplain areas. Includes shrub facies of Sphagno-Eriophoretum vaginati Walker et al. 1994 (code 3112). Also includes Betula nana shrublands in basin wetlands and marginal to watertracks (code 312).
Riparian shrublands Areas dominated by willows along watertracks, streams and rivers. Includes willow communities in water tracks (community type Eriophorum angustifolium-Salix pulchra, code 511), and along larger streams (community types Salix alaxensis-Salix richardsonii spp. lanata, code 512; Salix pulchra-Calamagrostis canadensis, code 514; and Betula nana, code 513). Most shrubs are less than 1 m tall, but along the larger streams, the willows may exceed 2-3 m (code 5121). Shrublands are usually mixed with significant components of graminoid and forb dominated areas (e.g; community type Carex podocarpa-Dodecatheon frigidus, code 515; community type Epilobium latifolium-Castilleja caudata, code 141, and Assoc. Dryado integrifolia-Caricetum bigelowii Walker et al. 1994, code 321). Also includes dense shrub thickets on slopes and drainages dominated by Salix glauca and Alnus crispa (code 52) and a few uncommon Populus balsamifera stands.
Wetland complex: Poor fen complex (codes 4, 41, 411, 412, 413) Wetland areas with dysic organic soils (pH < 4.5) and dominated by sedges (Carex rariflora, C. rotundata, Eriophorum scheuchzeri) and mosses (mainly Sphagnum spp.). Wet microsites have a variety of communities, some of which are relatively acidic (e.g. community types Sphagnum orientale-Eriophorum scheuchzeri, code 412; Carex aquatilis-Sphagnum spp., code 413). Raised microsites are consistently acidic with Sphagnum-rich communities (e.g. community type Sphagnum lenense-Salix fuscescens, code 411 or shrub facies of Sphagno-Eriophoretum vaginati Walker et al. 1994, codes 3112, 312). Lawns of Sphagnum and sedges are common around the margins of basins of poor fens and some watertracks.
Rich fen complex (codes 42, 421, 422, 423, 326) Wetland areas with euic organic soils (pH > 4.5) dominated by sedges (Carex chordorrhiza, Carex aquatilis, Eriophorum angustifolium) and mosses (mainly Drepanocladus spp., Scorpidium scorpioides, Tomentypnum nitens). Wet sites have rich fen communities (e.g. community types Carex aquatilis-Carex chordorrhiza and Carex aquatilis-Eriophorum angustifolium). Raised microsites have a variety of communities that are consistently nonacidic (e.g. Assoc. Dryado integrifolia-Caricetum bigelowii Walker et al. 1994, code 321; community type Tomentypnum nitens-Trichophorum caespitosum, code 421). Also includes rich communities found in a few drained lake basins on glacial outwash surfaces (community type Deschampsia caespitosa- Carex saxatilis, code 326).
Water and aquatic complex (codes 6, 43) Open water in ponds, lakes, and rivers. Includes small areas of aquatic vegetation (community types Hippuris vulgaris-Arctophila fulva, and Hippuris vulgaris-Sparganium hyperboreum, code 43).
Purpose:
Vegetation map of the Upper Kaparuk River region 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: -149.698700
East_Bounding_Coordinate: -149.000441
North_Bounding_Coordinate: 68.747945
South_Bounding_Coordinate: 68.471113
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: biota
Theme_Keyword: geoscientificInformation
Theme_Keyword: environment
Theme:
Theme_Keyword_Thesaurus: AGC
Theme:
Theme_Keyword_Thesaurus: AGC
Theme:
Theme_Keyword_Thesaurus: Alaska Geobotany Center
Theme_Keyword: uk25k
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
Place_Keyword: Imnavait Creek
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/>
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Data_Quality_Information:
Lineage:
Process_Step:
Process_Description: Dataset copied.
Process_Date: 20100127
Process_Time: 15053900
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Gayle Neufeld
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Point_and_Vector_Object_Count: 9
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Entity_Type_Label: uk25k_veg_u6
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Attribute_Label: Shape
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Attribute:
Attribute_Label: veg
Attribute_Definition: Vegetation code
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Enumerated_Domain_Value_Definition: Barren complex
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Enumerated_Domain_Value_Definition: Dry tundra complex
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Enumerated_Domain_Value_Definition: Snowbed complex
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Enumerated_Domain_Value_Definition: Moist nonacidic tundra complex
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Enumerated_Domain_Value_Definition: Moist acidic tundra complex
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Enumerated_Domain_Value_Definition: Shrub tundra complex
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Enumerated_Domain_Value_Definition: Riparian shrubland complex
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Enumerated_Domain_Value_Definition: Wetland complex
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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/>
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Generated by mp version 2.9.6 on Wed Feb 03 16:01:06 2010