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Landtype Associations

A Unit of Terrestrial Ecosystem Inventory (TEUI). Landtype Associations. Prepared by Karen Bennett Regional Soil Scientist October 2011. What’s This All About?. Terrestrial Condition Framework. Landtype Associations = Analysis Unit.

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Landtype Associations

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  1. A Unit of Terrestrial Ecosystem Inventory (TEUI) Landtype Associations Prepared by Karen Bennett Regional Soil Scientist October 2011

  2. What’s This All About? Terrestrial Condition Framework

  3. Landtype Associations = Analysis Unit Watershed Condition Framework - Based on sub-watersheds -6th field HUC Terrestrial Condition Framework - Based on Landtype Associations

  4. Hydrologic Unit Code Hierarchy

  5. USFS R6 Priority Watersheds Over the past 15 years, 3 systems of prioritizing watersheds for protection and restoration have emerged in the Region

  6. Terrestrial Ecological Unit Hierarchy

  7. Omernick Level II Ecoregions of the US Province Scale –dominant vegetation, - complex vertical soil/veg relationships

  8. Omernick Level III and IV PNW Ecoregions • Section Scale • 12 Sections – 7 with significant FS ownership • Coast Range • Cascades • Eastern Cascade Slopes • Blue Mtns • Klamath Mtns. • North Cascades • 2 with Partial influence • Columbia Plateau • Northern Basin and Range • 2 no influence • Willamette Valley • Puget Lowlands • Snake River Plains • Subsection Scale • 94 subsections – 54 with significant FS ownership

  9. Landtype Association • A combination of geology, climate, geomorphology, morphometry, and vegetation that reveals similarities on a landscape. • Classification and mapping of ecosystems • Based on biotic and abiotic factors • Similar capabilities and potentials for management • Addresses sensitivity and resiliency of a landscape

  10. Complex interactions of TEUI

  11. The Question of Boundary Criteria

  12. Landtype Association versus Landtype

  13. How can LTAs be used? • Organizing and designing LTA map units • Provides higher altitude view of Forest • Provides means to analyze landscape at Regional and National level • Inherent properties of soils and vegetation primary factors organizing management • Identifies limitations for management options (geologic hazards) - Put Forest overview map here. -

  14. How can LTAs be used? Put graphic of landslide terrain here. • Land use potential • Capabilities, limitations • Forest, grazing • facilities, roads, transport, recreation, energy • Hazards – • slope stability, rockfall • Fires Spread/Capture

  15. How can LTAs be used? • Understanding watershed processes • storm precipitation response • water transport and availability • Undestanding groundwater storage and recharge • Understanding erosion and sediment • Erosion rates and volumes • Sediment storage and routing Put graphic here of a highly dissected, erodsing landscape adjacent to a more planear, hillslope in a single or adjacent watersheds to discuss understanding erosion and sediment transport in a watershed.

  16. How can LTAs be used? • Wildlife habitat • Migration corridors • Aquatic habitat • Stream dynamics • Put graphic of meandering stream corridors here

  17. Timelines and Expectations

  18. Questions? Discussion?

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