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Arctic Scrub Wet Drainages

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State 1

Reference State

18471

Circle-spoke model

Ecosystem states

State 1

18471

Scenario model

Ecosystem states

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State 1
Reference State
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18471

State 1
Reference State

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Reference State

Description

The reference state describes three distinct vegetative communities grouped by the structure and dominance of the vegetation (e.g., shrubs, forbs, and graminoids) and their ecological function and stability. Soil hydrology and fire are the major factors influencing vegetation, though other factors may be of concern.

This reference state is developed and characterized using available vegetation models, including Landfire BpS and the Alaska vegetation classification system (Landfire, 2009; Viereck et al., 1992).

Dominant plant species

willow (Salix), shrub
tealeaf willow (Salix pulchra), shrub
Barclay's willow (Salix barclayi), shrub
bluejoint (Calamagrostis canadensis), grass

Submodel

1.1. Tealeaf willow (Salix pulchra) - Barclay's willow (Salix barclayi) / Bluejoint (Calamagrostis canadensis)

1.2. Water sedge (Carex aquatilis) - Bluejoint (Calamagrostis canadensis) / Purple marshlocks (Comarum palustre)

1.3. Bluejoint (Calamagrostis canadensis) / Fireweed (Chamerion angustifolium) - Alaska wild rhubarb (Polygonum alpinum)

Model keys

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Natural Resources
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Arctic Scrub Wet Drainages

List model

Circle-spoke model

Scenario model

Current ecosystem state

Management practices/drivers

Target ecosystem state

State 1
Reference State

Description

Dominant plant species

Submodel

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Briefcase

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Major Land Resource Areas

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Natural ResourcesConservation Service

Arctic Scrub Wet Drainages

Model keys

Natural Resources
Conservation Service