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Pilot-Scale Mapping for Alaskan Portion of the Circumboreal Vegetation Map

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Pilot-Scale Mapping for Alaskan Portion of the Circumboreal Vegetation Map Pilot-scale Mapping for Alaskan Portion of the Circumboreal Vegetation Map Torre Jorgenson Alaska Ecoscience Innoko Flats Mapping Steps •Compile Vegetation Information •Identify Terrain Relationships •Compile Map Input Layers •Delinate Boundaries on MODIS •Evaluate-Refine of Boundaries on Landsat •Review Consistency with Landcover Maps •Develop Thematic Map •Resolve Mapping Issues Compilation of Information on Plant Communities Species Differences Among Floristic Provinces Norther Grow n th Aleutia Alaska- Alaska- Rockie Central Eastern Atlantic Species Form Habitat ns Kenai Yukon s Canada Canada Canada Abies balsamea T M 0 0 0 0 3 3 3 Acer rubrum T M 0 0 0 Acer spicatum S M 0 0 0 0 1 2 2 Actaea rubra ssp. arguta F M 0 2 0 2 Alnus rugosa S M 0 0 0 Alnus tenuifolia S M 0 3 3 Alnus viridis ssp crispa S M 0 0 0 1 3 3 3 Alnus viridis ssp fruticosa S M 0 3 3 3 1 0 0 Alnus viridus ssp sinuata S M 2 2 1 2 0 0 0 Amelanchier alnifolia S M 0 0 0 Angelica lucida F M 3 3 1 Aralia nudicaulis F M 0 0 0 3 Arctostaphylos uva-ursi S D 1 3 3 Athyrium filix-femina F M 3 3 1 Betula glandulosa S M 0 1 2 Betula nana ssp exilis S M 2 3 3 Betula neoalaskana T M 0 3 3 2 0 0 0 Betula papyrifera T M 0 0 0 1 3 3 3 Calamagrostis canadensis G M 3 3 3 Calypso bulbosa H N 0 0 0 2 Carex bigelowii G M 0 1 3 Cassiope stellariana S M 2 2 0 Cassiope tetragona S M 0 1 2 Ceratodon purpureus M M 2 2 Chamaedaphne calyculata S W 0 2 2 2 2 2 Chimaphila umbellata S D 0 0 0 2 Cladina arbuscula L M 2 2 2 Cladina rangiferina L M 2 2 2 Clintonia borealis F M 0 0 0 2 Compotina peregrina S D 0 0 0 2 Coptis groenlandica F M 0 0 0 2 Cornus canadensis F M 3 3 3 Cornus stolonifera S M 0 0 1 2 2 Corylus cornuta S M 0 0 0 2 Diervilla lonicera S M 0 0 0 3 Identification of Terrain Relationships Alpine Rocky Dry Dwarf Scrub Upland Moist Upland Tall Moist Scrub Broadleaf Upland Forest Wet Upland Moist Needleleaf Needleleaf Forest Bedrock Forest Lowland Lowland Wet Bog Lowland Loess Forest Lowland Meadow Riverine Lowland Lowland Broadleaf Wet Low Barrens Tussock Fen Forest Retransported Silt Scrub Bog Meadow Thick Peat Lake Gravel PF Stratified Silt and Sand Riverbed Table 33. Relationships among landscape components in the Bering Land Bridge National Preserve and Cape Kusenstern National Monument, northwestern Alaska. Physio- Soil Geomorphic Units Slope Drainage Soil-water Plant Association Vegetation Types Ecotype graphy Texture Position Chemistry (Level IV) (aggregated) Alpine Rocky Intrusive Felsic Crest, Excessive, Acidic Dryas octopetala–Salix Partially Vegetated (5– Alpine Nonalkaline Bedrock, Metamorphic Shoulder Well (pH 5.6), phlebophylla–Hierochloe 30% Cover) Dry Barrens Circum- alpina and Sedimentary Upper Dryas–Lichen Tundra, Alpine Nonalkaline neutral Noncarbonate Bedrock, Slope (Su) Dryas–Sedge Tundra Dry Dryas Shrub Hillside Colluvium, (pH 5.6– Talus 7.3) Sedimentary and Crest, Excessive Alkaline Dryas integrifolia– Partially Vegetated (5– Alpine Alkaline Dry Metamorphic Carbonate Shoulder, Well (pH > 7.3) Rhododendron lapponicum; 30% Cover) Barrens Bedrock, Su Dryas octopetala–Potentilla Dryas Tundra, Dryas– Alpine Alkaline Dry Hillside Colluvium, uniflora Lichen Tundra Dryas Shrub Talus Upland Rocky Hillside Colluvium, Crest, Excessive, Circum- Betula nana–Ledum Partially Vegetated, Upland Dry Lichen Young Mafic Volcanics Slopes Well neutral decumbens–Loiseleuria Crustose and Fruticose Barrens Old Mafic Volcanics procumbens Lichen Sandy Coastal Inactive Sand Crest, Su Excessive, Circum- Empetrum nigrum–Elymus Crowberry Tundra Upland Dry Dunes Well neutral arenarius mollis Crowberry Shrub Rocky, Hillside Colluvium, Upper Moder- Alkaline, Picea glauca–Salix Open White Spruce Upland Moist Spruce Loamy Solifluction Deposits, Slope, ately CN planifolia pulchra Forest Forest Loess Lower Well Salix glauca–Dryas Open Low Willow, Upland Moist Low Slope (Sl) (Wm), integrifolia Shrub Birch–Willow Willow Shrub Poor Dryas integrifolia–Carex Sedge–Dryas Tundra, Upland Moist Sedge– bigelowii–Senecio Dryas–Forb Tundra Dryas Meadow atropurpureus Acidic, Betula nana–Ledum Open Mesic Shrub Upland Moist Dwarf Circum- decumbens–Loiseleuria Birch–Ericaceous Birch–Ericaceous neutral procumbens Shrub Shrub Loamy, Hillside Colluvium, Crest, Wm, Poor Acidic Betula nana–Eriophorum Mixed Shrub Sedge– Upland Moist Dwarf Organic Loess, Ice-Rich Thaw Slopes vaginatum Tussock Tundra Birch–Tussock Shrub Basin, Bog Senecio pseudoarnica Plantago maritima Lathyrus maritima Carex Point sampling: 100 points in 4 x 10 m plot macrocephala Map Inputs Northern Boreal (subarctic) Mid Boreal (continental) Southern Boreal (sub-continental Oceanic Maritime Boreal (oceanic) Topography (90 m DEM) Bedrock Geology Glaciations Fire Disturbance MODIS Image Base Map, Refinement of Polygons over Landsat Geographic Sectors Physiography Formation Groups * * Consistency Review with National Land Cover Dataset Size-class Distribution Table 1. Size class distribution of polygons Count ofSize FORMGROUP Class FORM 250- 500- 1000- 2000- Grand % Too GROU 0-250 500 1000 2000 5000 >5000 Total Small Too much emphasis Alpine C 13 9 9 4 8 2 45 49 on mountain patches Subalpine D 14 12 15 13 9 1 64 41 Subarctic Woodlands E 4 5 6 4 3 1 23 39 Boreal Mixed Forests G 6 3 15 4 8 6 42 21 Oceanic Meadows H 5 2 1 1 9 78 Due to Islands Coastal Meadows K 6 1 7 86 Emphasis on unusual Mires L 2 4 4 5 3 1 19 32 Floodplains N 5 2 2 2 2 13 38 Boreal Scrub V 6 7 9 8 3 2 35 37 Emphasis on water for Water W 24 3 1 1 1 30 90 georeferencing Ice X 7 4 3 3 1 18 61 Emphasis on unusual Grand Total 92 49 66 41 41 16 305 Mapping Issues Floodplain detail? Glaciated Physiography ? Formation Group: boreal coniferous forest vs subarctic woodland Both widespread White Spruce Forest in Uplands with Deciduous successional stages Black Spruce in lowlands controlled by permafrost without deciduous tree successional stage At Formation Group Level: need boreal shrubland class 1918 Near Naknek River, King Salmon P. Hagelbarger 2005 G. Frost Other Mapping Issues • Too many undersized polygons • Formation Type: need Water and Ice for completeness • Geographic Variations (L4): need to partition numbers by region (mappers) • Need uniform geodatabase across all mappers Questions?.
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