Natural Resources
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Subarctic Tussock-Scrub Frozen Plains

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List model

Ecosystem states

State 1

Reference State

9274

Circle-spoke model

Ecosystem states

State 1

9274

Scenario model

Ecosystem states

Current ecosystem state

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State 1
Reference State
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Management practices/drivers

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No transition or restoration pathway between the selected states has been described

Target ecosystem state

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State 1
Reference State
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9274

State 1
Reference State

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Reference State

Typical area of community 1.1.

Constancy and canopy cover of plants in community 1.1.

Typical area of community 1.2.

Constancy and canopy cover of plants in community 1.2.

Description

The reference state supports two community phases, which are grouped by the structure and dominance of the vegetation (e.g., graminoids, shrubs, and lichens) and by their ecological function and stability. The reference community phase is represented by tussock grassland consisting of hydrophilic graminoids, low and dwarf shrubs, and mosses. The presence of these community phases is dictated temporally and spatially by frost heave and collapse of frost heaved areas. No alternate states have been observed.

Dominant plant species

marsh Labrador tea (Ledum palustre ssp. decumbens), shrub
dwarf birch (Betula nana), shrub
cloudberry (Rubus chamaemorus), shrub
tussock cottongrass (Eriophorum vaginatum), grass
red cottongrass (Eriophorum russeolum), grass
water sedge (Carex aquatilis), grass

Submodel

1.1. Tussock cottongrass-water sedge/dwarf birch-marsh Labrador tea-cloudberry-bog blueberry grassland

1.2. Marsh Labrador tea-dwarf birch-bog blueberry-lingonberry/reindeer lichen-snow lichen scrubland

Model keys

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Natural Resources
Conservation Service

Subarctic Tussock-Scrub Frozen Plains

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

Model keys

Briefcase

Ecological sites

Major Land Resource Areas

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Natural ResourcesConservation Service

Subarctic Tussock-Scrub Frozen Plains

Model keys

Natural Resources
Conservation Service